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*.o
*~
.deps
.dirstamp
/Makefile
Makefile.in
aclocal.m4
autom4te.cache
cloud-init
compile
config.*
configure
depcomp
install-sh
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data/cloud-init.service
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Auke Kok <auke-jan.h.kok@intel.com>
Dimitri John Ledkov <dimitri.j.ledkov@intel.com>
Ikey Doherty <michael.i.doherty@intel.com>
Julio Montes <julio.montes@intel.com>

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This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<http://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<http://www.gnu.org/philosophy/why-not-lgpl.html>.

32
LICENSE Normal file
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Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.

71
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AM_CPPFLAGS = -I $(top_srcdir)/src -I $(top_srcdir)/src/interpreters
AM_CFLAGS = -std=gnu99 -fstack-protector -Wall -pedantic \
-Wstrict-prototypes -Wundef -fno-common \
-Werror-implicit-function-declaration \
-Wformat -Wformat-security -Werror=format-security \
-Wconversion -Wunreachable-code
EXTRA_DIST = \
LICENSE \
COPYING \
data/cloud-init.service.in
DISTCHECK_CONFIGURE_FLAGS = \
--with-systemdsystemunitdir=$$dc_install_base/$(systemdsystemunitdir) --enable-debug
dist_man_MANS = \
docs/cloud-init.1 \
docs/cloud-config.5
bin_PROGRAMS = cloud-init
cloud_init_SOURCES = \
src/ccmodules.h \
src/ccmodules/groups.c \
src/ccmodules/package_upgrade.c \
src/ccmodules/packages.c \
src/ccmodules/service.c \
src/ccmodules/ssh_authorized_keys.c \
src/ccmodules/users.c \
src/ccmodules/write_files.c \
src/curl.c \
src/curl.h \
src/datasources.h \
src/datasources/openstack.c \
src/debug.h \
src/default_user.h \
src/handlers.h \
src/interpreters.h \
src/interpreters/cloud_config.c \
src/interpreters/cloud_config.h \
src/interpreters/shell_script.c \
src/json.c \
src/json.h \
src/lib.c \
src/lib.h \
src/main.c \
src/userdata.c \
src/userdata.h
if DEBUG
AM_CFLAGS += -ggdb3 -O0
cloud_init_SOURCES += src/debug.c
endif
cloud_init_CFLAGS = $(AM_CFLAGS) $(GLIB_CFLAGS) $(YAML_CFLAGS) $(JSON_GLIB_CFLAGS)
cloud_init_LDADD = $(GLIB_LIBS) $(YAML_LIBS) $(CURL_LIBS) $(JSON_GLIB_LIBS)
SYSTEMD_DIR=$(prefix)/lib/systemd/system/
systemdsystemunitdir = @SYSTEMD_SYSTEMUNITDIR@
systemdsystemunit_DATA = data/cloud-init.service
systemdsystemunit-install-local:
mkdir -p $(DESTDIR)$(systemdsystemunitdir)/multi-user.target.wants/
ln -sf ../cloud-init.service $(DESTDIR)$(systemdsystemunitdir)/multi-user.target.wants/cloud-init.service
install-data-local: systemdsystemunit-install-local
systemdsystemunit-uninstall-local:
rm -f $(DESTDIR)$(systemdsystemunitdir)/multi-user.target.wants/cloud-init.service
uninstall-local: systemdsystemunit-uninstall-local

92
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Contents:
1) Description of this project
2) Compiling, prerequisites
3) Bugs and feedback?
====
1. Cloud-init for Clearlinux Project for Intel Architecture
cloud-init is the standard way for cloud customers to initialize
containers and virtual hosts. These virtual machines are usually
provisioned in bulk and provided without any customization to cloud
customers, which then require that they are customized for their
particular purpose.
Several implementations exist that implement this functionality,
and this implementation is fairly similar to the other ones. For
reference, we're listing the other implementations here:
- https://launchpad.net/cloud-init
A Python-based implementation and the "standard". Many of the
features of this implementation are derived and benchmarked against
this version. This implementation supports many different OS's,
not just Ubuntu.
- https://github.com/coreos/coreos-cloudinit
A Go-based implementation for CoreOS.
While generally it's preferred to use existing implementations,
since it reduces duplicate code and makes stronger communities, in
this project's case it was decided to forego extending and working
on the existing implementations. Several factors were considered, and
a short summary of the key points of that decision are listed below.
Speed is a significant factor. Interpreted languages have come a long
way and are highly performant, especially if properly used. However,
theire is a significant cost of provisioning cloud nodes that have
increased base storage costs due to the inclusion of libraries of
interpreted languages. Since we expect people to prefer cloud nodes are
minimal in size, having interpreted language libraries just for the
sake of a cloud initialization script makes little sense, and we can
reduce the storage need and copy times of cloud images significantly.
Language choice is a minor factor. Generally languages that have
good exception handling are preferred. Since execution speed and low
complexity are preferred for installation and boot-time critical tasks,
lots of libraries should be avoided, as robustness is critical. Missed
python exceptions could cause cloud-init execution to halt, resulting
in an unusable cloud host, which is to be avoided at all cost. The
drawbacks of C being fairly sparse are known, and debugging tools
compensate for that.
We can shed additional overhead by eliminating unwanted functionality
that a clearlinux cloud node does not need, but we can likely
never recoup the initial cost of a base Python installation, as it
is generally in the order of 100MB or more. Hence, we've opted to
implement a version in C that has reduced library requrements. This
has brought the size of this implementation down to under 1mb. Even
considering used libraries, the resulting binary is small.
====
2. Compiling
Currently, cloud-init requires the following prerequisites:
- glib-2.0 >= 2.24.1
- yaml-0.1 >= 0.1.4
- libcurl
- json-glib-1.0
As cloud-init is tooled with autotools, one shouldn't have to do
more than:
$ sh autogen.sh
$ make
$ sudo make install
====
3. Bugs, feedback, contact
cloud-init is hosted on github. You can find releases, an issue
tracker and git sources on github.com/clearlinux/clr-cloud-init. For
mailing lists, subscribe to dev@lists.clearlinux.org (via
lists.clearlinux.org).
This project has many contributors. Not all may be mentioned in the
AUTHORS file.

17
autogen.sh Executable file
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#!/bin/sh
set -e
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig:/usr/lib/pkgconfig
autoreconf --force --install --symlink --warnings=all
args="\
--sysconfdir=/etc \
--localstatedir=/var \
--prefix=/usr \
--enable-silent-rules"
set -x
./configure CFLAGS='-g -O0' $args "$@"
make clean

57
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# -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.
AC_PREREQ([2.68])
AC_INIT([clr-cloud-init],[0],[dev@clearlinux.org])
AM_INIT_AUTOMAKE([foreign -Wall -Werror -Wno-portability silent-rules subdir-objects color-tests no-dist-gzip dist-xz])
AC_CONFIG_SRCDIR([src/main.c])
AC_CONFIG_FILES([Makefile
data/cloud-init.service])
AC_CONFIG_HEADERS([config.h])
# Checks for programs.
AC_PROG_CC
AM_PROG_CC_C_O
AC_PROG_INSTALL
AC_PROG_MKDIR_P
# Checks for libraries.
PKG_CHECK_MODULES([GLIB], [glib-2.0 >= 2.24.1])
PKG_CHECK_MODULES([YAML], [yaml-0.1 >= 0.1.4])
PKG_CHECK_MODULES([CURL], [libcurl])
PKG_CHECK_MODULES([JSON_GLIB], [json-glib-1.0])
# Checks for header files.
AC_CHECK_HEADERS([errno.h])
AC_CHECK_HEADERS([getopt.h])
AC_CHECK_HEADERS([glib.h])
AC_CHECK_HEADERS([stdarg.h])
AC_CHECK_HEADERS([stdbool.h])
AC_CHECK_HEADERS([stdio.h])
AC_CHECK_HEADERS([stdlib.h])
AC_CHECK_HEADERS([stdlib.h])
AC_CHECK_HEADERS([sys/types.h])
AC_CHECK_HEADERS([unistd.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_CHECK_HEADER_STDBOOL
AC_ARG_ENABLE(debug, AS_HELP_STRING([--enable-debug], [enable debug mode @<:@default=no@:>@]),
[], [enable_debug=no])
AS_IF([test "x$enable_debug" = "xyes"],
[AC_DEFINE([DEBUG], [1], [Debugging mode enabled])],
[AC_DEFINE([NDEBUG], [1], [Debugging and assertions disabled])])
AM_CONDITIONAL([DEBUG], [test x$enable_debug = x"yes"])
# Options
AC_ARG_WITH([systemdsystemunitdir], AS_HELP_STRING([--with-systemdsystemunitdir=DIR],
[path to systemd system service directory]), [path_systemdsystemunit=${withval}],
[path_systemdsystemunit="`$PKG_CONFIG --variable=systemdsystemunitdir systemd`"])
SYSTEMD_SYSTEMUNITDIR="${path_systemdsystemunit}"
AC_SUBST(SYSTEMD_SYSTEMUNITDIR)
AM_CONDITIONAL(SYSTEMD, test -n "${path_systemdsystemunit}")
# Checks for library functions.
AC_OUTPUT

19
data/cloud-init.service.in Normal file
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[Unit]
Description=Initial cloud-init job (metadata service crawler)
After=local-fs.target network.target
Before=sshd.service sshd-keygen.service
Requires=network.target
Wants=local-fs.target sshd.service sshd-keygen.service
ConditionFirstBoot=yes
[Service]
Type=oneshot
ExecStart=@prefix@/bin/cloud-init --first-boot
RemainAfterExit=yes
TimeoutSec=0
# Output needs to appear in instance console output
StandardOutput=journal+console
[Install]
WantedBy=multi-user.target

266
docs/cloud-config.5 Normal file
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'\" t
.TH "CLOUDCONFIG" "5" "" "cloud-config 5" "cloud-config"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
cloud\-config \- User data format used by \fBcloud-init\fR(1)
.SH "SYNOPSIS"
.PP
cloud\-config data is provided by the cloud infrastructure to a cloud
instance. This data is parsed by \fBcloud-init\fR(1) which then configures
the cloud instance based on the information in the cloud-config.
.SH "DESCRIPTION"
.PP
The \fBcloud\-config\fR format is used to structure configuration data
provided to the cloud instance. This data is structured in the YAML
format (\fBhttp://yaml.org\fR). Note that \fBcloud\-init\fR(1) uses the
libyaml library, which supports YAML version 1.1.
.PP
In the YAML content, the root node (the document) contains a sequence of
directives. These directives inform cloud-init that the content of the
directive are processed by a directive-specific handler, or "module".
.PP
cloud-init includes many modules, each expecting a specifically constructed
content. This document lists the correct format and organization of each data
section for the supported modules, describes their effect, and states
various parameters for each option.
.PP
Table of implemented directives. Column 3 ("Ref") and column 4 ("CoreOS")
list whether the reference specification or the CoreOS implementation support
these directives. Note that implementation details may differ, due to the
underlying differences in Operating Systems.
.RS
.TS
lb lb lb lb
lfCW l l l l.
Directive Description Ref. CoreOS.
_
groups Configure user account groups yes no
package_upgrade Perform a software update yes no
packages Install additional software yes no
runcmd Execute system commands yes no
service Perform system service configuration no no
ssh_authorized_keys Provision SSH public keys yes yes
users Configure user accounts yes yes
write_files Write content to arbitrary files yes yes
_
.TE
.RE
.SH "OPTIONS"
.PP
For each of the directives listed in the table above, zero or more options may
be provided. The list below documents the implemented options per directive.
The "Type" field values are:
.PP
\fBTYPES\fR
.RS 4
.TS
lb lb
lfCW l l.
Type Description
_
boolean Either true, false, yes, no, 0 or 1 (upper case and initial capitol
letter versions treated identical)
string A generic string encoded value. Can be multiline or YAML encoded
content
integer A string encoded decimal integer value
octal A string encoded octal integer value
hex A string encoded hexadecimal integer value
[] if a type is listed with [] appended, it means there may be zero or
more values, lists of values or any arbitrary depth of these nested
* Indicates this value isn't a separate key, but directly the
associated value of the root node. This is applicable for directives
that only have a single configuration parameter,
e.g. "package_upgrade"
.TE
.RE
.PP
\fBgroups\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
name string[] no Create a new user account group and
place listed user account names in
that group
.TE
.RE
.PP
\fBpackage_upgrade\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
* boolean yes Enables or disables whether software
update is performed
.TE
.RE
.PP
\fBpackages\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
name string[] no Enables installation of software bundles
.TE
.RE
.PP
\fBruncmd\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
* string[] no Executes a script or program. The script
schould be prepended with a standard
shebang stanza to indicate interpreter
.TE
.RE
.PP
\fBservice\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
start string[] no Start units
stop string[] no Stop units
restart string[] no Restart units
enable string[] no Enable units to start automatically
disable string[] no Disable units from starting automatically
reload string[] no Reload service units
isolate string[] no Change target to a new unit
mask string[] no Prevent units from starting
unmask string[] no Remove unit start prevention mask
.TE
.RE
.PP
\fBssh_authorized_keys\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
* string[] no Specifies an SSH public key value, as
string. This will be added to the default
user account's SSH configuration
.TE
.RE
.PP
\fBusers\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
* [] no This directive expects a list of user
definitions. Each definition can
additionally specify the following
sub-options:
_
name string yes A user account name to be created
gecos string no A real user name, can be left empty
homedir string no A home directory path. Default under "/home"
primary-group
string no A group name.
groups string no Comma-separated list of group names or
single group name. Specifies additional
groups to put this user account into
lock-passwd
boolean no Lock the user account
inactive boolean no Mark the user account as inactive
passwd string no Password hash for the user account
no-create-home
boolean no Omits creating a home directory
no-user-group
boolean no Omits group creating for the account
no-log-init
boolean no Omits this account from lastlog/faillog
expiredate string no A date at which to expire the password
ssh-authorized-keys
string[] no Add SSH public keys to ssh configuration
sudo string[] no Add sudoers lines for this account
system boolean no Make the account a system account
.TE
.RE
.PP
\fBwrite_files\fR
.RS 4
.TS
lb lb lb lb
lfCW l l l l.
Option Type Required Function
_
* [] no This directive expects a list of write_files
definitions. Each definition itself contains the
following options:
_
content string yes The content to write to a file
path string yes The full path and filename of the file to
be written out
owner string no Username and optionally group name, separated
by ":" or ".". Defaults to "root.root"
permissions octal no Octal value describing the file permissions
default value is influenced according to
\fBumask\fR
.TE
.RE
.SH "COPYRIGHT"
.PP
Copyright 2015 Intel Corporation\&. License: Creative Commons
Attribution\-ShareAlike 3.0 Unported\s-2\u[1]\d\s+2\&.
.SH "SEE ALSO"
.PP
\fBcloud-init\fB(1)
.SH "NOTES"
.IP " 1." 4
Creative Commons Attribution\-ShareAlike 3.0 Unported
.RS 4
\%http://creativecommons.org/licenses/by-sa/3.0/
.RE

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'\" t
.TH "CLOUDINIT" "1" "" "cloud-init 1" "cloud-init"
.\" -----------------------------------------------------------------
.\" * Define some portability stuff
.\" -----------------------------------------------------------------
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.\" http://bugs.debian.org/507673
.\" http://lists.gnu.org/archive/html/groff/2009-02/msg00013.html
.\" ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
.ie \n(.g .ds Aq \(aq
.el .ds Aq '
.\" -----------------------------------------------------------------
.\" * set default formatting
.\" -----------------------------------------------------------------
.\" disable hyphenation
.nh
.\" disable justification (adjust text to left margin only)
.ad l
.\" -----------------------------------------------------------------
.\" * MAIN CONTENT STARTS HERE *
.\" -----------------------------------------------------------------
.SH "NAME"
cloud\-init \- Configures a cloud instance
.SH "SYNOPSIS"
.HP \w'\fBcloud-init\fR\ 'u
\fBcloud-init\fR [OPTIONS...]
.SH "DESCRIPTION"
.PP
\fBcloud-init\fR
is run during first boot of a new cloud instance, with the purpose of
configuring the cloud instance for use for the end user.
.PP
Various tasks can be performed, and all are optional. cloud-init parses
the provided user-data and can create user accounds, user groups, register
ssh keys, write content to files, perform software update or install new
software, and more.
.RE
.SH "OPTIONS"
.PP
The following options are understood:
.PP
\fB\-h\fR, \fB\-\-help\fR
.RS 4
Prints a help message\&.
.RE
.PP
\fB\-u\fR FILE, \fB\-\-user\-data\-file\fR FILE
.RS 4
Path to a cloud-config user data file\&. If omitted, \fBcloud-init\fR will
attempt to fetch user-data from the openstack link-local connected data
service URL.
.RE
.PP
\fB\-b\fR, \fB\-\-first\-boot\fR
.RS 4
Performs various actions that are required to be performed during the
first boot of the cloud instance, including (but not exclusively) the
creation of a default user account ("clear").
.RE
.PP
\fB\-v\fR, \fB\-\-version\fR
.RS 4
Prints version information\&.
.RE
.SH "EXIT STATUS"
.PP
On success, 0 is returned, a non\-zero failure code otherwise\&.
.SH "COPYRIGHT"
.PP
Copyright 2015 Intel Corporation\&. License: Creative Commons
Attribution\-ShareAlike 3.0 Unported\s-2\u[1]\d\s+2\&.
.SH "SEE ALSO"
.PP
This project is a limited-functionality implementation of the cloud-init
specification. The full documentation of the generic implementation is
available online and can be referenced here:
.RS 4
\fBhttps://cloudinit.readthedocs.org/en/latest/\fR
.RE
.PP
The cloud-config format that \fBcloud-init\fR(1) supports is documented
in \fBcloud-config\fR(5). This lists the options that are supported,
their structure and function.
.SH "NOTES"
.IP " 1." 4
Creative Commons Attribution\-ShareAlike 3.0 Unported
.RS 4
\%http://creativecommons.org/licenses/by-sa/3.0/
.RE

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# Add groups to the system
# The following example adds the ubuntu group with members foo and bar and
# the group cloud-users.
groups:
- ubuntu: [foo,bar]
- cloud-users
# Add users to the system. Users are added after groups are added.
users:
- default
- name: foobar
gecos: Foo B. Bar
primary-group: foobar
groups: users
selinux-user: staff_u
expiredate: 2012-09-01
ssh-import-id: foobar
lock-passwd: false
passwd: $6$j212wezy$7H/1LT4f9/N3wpgNunhsIqtMj62OKiS3nyNwuizouQc3u7MbYCarYeAHWYPYb2FT.lbioDm2RrkJPb9BZMN1O/
- name: barfoo
gecos: Bar B. Foo
sudo: ALL=(ALL) NOPASSWD:ALL
groups: users, admin
ssh-import-id: None
lock-passwd: true
ssh-authorized-keys:
- <ssh pub key 1>
- <ssh pub key 2>
- name: cloudy
gecos: Magic Cloud App Daemon User
inactive: true
system: true
# Valid Values:
# name: The user's login name
# gecos: The user name's real name, i.e. "Bob B. Smith"
# homedir: Optional. Set to the local path you want to use. Defaults to
# /home/<username>
# primary-group: define the primary group. Defaults to a new group created
# named after the user.
# groups: Optional. Additional groups to add the user to. Defaults to none
# selinux-user: Optional. The SELinux user for the user's login, such as
# "staff_u". When this is omitted the system will select the default
# SELinux user.
# lock-passwd: Defaults to true. Lock the password to disable password login
# inactive: Create the user as inactive
# passwd: The hash -- not the password itself -- of the password you want
# to use for this user. You can generate a safe hash via:
# mkpasswd --method=SHA-512 --rounds=4096
# (the above command would create from stdin an SHA-512 password hash
# with 4096 salt rounds)
#
# Please note: while the use of a hashed password is better than
# plain text, the use of this feature is not ideal. Also,
# using a high number of salting rounds will help, but it should
# not be relied upon.
#
# To highlight this risk, running John the Ripper against the
# example hash above, with a readily available wordlist, revealed
# the true password in 12 seconds on a i7-2620QM.
#
# In other words, this feature is a potential security risk and is
# provided for your convenience only. If you do not fully trust the
# medium over which your cloud-config will be transmitted, then you
# should use SSH authentication only.
#
# You have thus been warned.
# no-create-home: When set to true, do not create home directory.
# no-user-group: When set to true, do not create a group named after the user.
# no-log-init: When set to true, do not initialize lastlog and faillog database.
# ssh-import-id: Optional. Import SSH ids
# ssh-authorized-keys: Optional. [list] Add keys to user's authorized keys file
# sudo: Defaults to none. Set to the sudo string you want to use, i.e.
# ALL=(ALL) NOPASSWD:ALL. To add multiple rules, use the following
# format.
# sudo:
# - ALL=(ALL) NOPASSWD:/bin/mysql
# - ALL=(ALL) ALL
# Note: Please double check your syntax and make sure it is valid.
# cloud-init does not parse/check the syntax of the sudo
# directive.
# system: Create the user as a system user. This means no home directory.
#
# Default user creation:
#
# Unless you define users, you will get a 'ubuntu' user on ubuntu systems with the
# legacy permission (no password sudo, locked user, etc). If however, you want
# to have the 'ubuntu' user in addition to other users, you need to instruct
# cloud-init that you also want the default user. To do this use the following
# syntax:
# users:
# - default
# - bob
# - ....
# foobar: ...
#
# users[0] (the first user in users) overrides the user directive.
#
# The 'default' user above references the distro's config:
# system_info:
# default_user:
# name: Ubuntu
# plain_text_passwd: 'ubuntu'
# home: /home/ubuntu
# shell: /bin/bash
# lock_passwd: True
# gecos: Ubuntu
# groups: [adm, audio, cdrom, dialout, floppy, video, plugdev, dip, netdev]

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#cloud-config
# vim: syntax=yaml
#
# This is the configuration syntax that the write_files module
# will know how to understand. encoding can be given b64 or gzip or (gz+b64).
# The content will be decoded accordingly and then written to the path that is
# provided.
#
# Note: Content strings here are truncated for example purposes.
write_files:
- encoding: b64
content: CiMgVGhpcyBmaWxlIGNvbnRyb2xzIHRoZSBzdGF0ZSBvZiBTRUxpbnV4...
owner: root:root
path: /etc/sysconfig/selinux
permissions: '0644'
- content: |
# My new /etc/sysconfig/samba file
SMBDOPTIONS="-D"
path: /etc/sysconfig/samba
- content: !!binary |
f0VMRgIBAQAAAAAAAAAAAAIAPgABAAAAwARAAAAAAABAAAAAAAAAAJAVAAAAAAAAAAAAAEAAOAAI
AEAAHgAdAAYAAAAFAAAAQAAAAAAAAABAAEAAAAAAAEAAQAAAAAAAwAEAAAAAAADAAQAAAAAAAAgA
AAAAAAAAAwAAAAQAAAAAAgAAAAAAAAACQAAAAAAAAAJAAAAAAAAcAAAAAAAAABwAAAAAAAAAAQAA
....
path: /bin/arch
permissions: '0555'
- encoding: gzip
content: !!binary |
H4sIAIDb/U8C/1NW1E/KzNMvzuBKTc7IV8hIzcnJVyjPL8pJ4QIA6N+MVxsAAAA=
path: /usr/bin/hello
permissions: '0755'

20
examples/example3 Normal file
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#cloud-config
# vim: syntax=yaml
#
# Add yum repository configuration to the system
#
# The following example adds the file /etc/yum.repos.d/epel_testing.repo
# which can then subsequently be used by yum for later operations.
yum_repos:
# The name of the repository
epel-testing:
# Any repository configuration options
# See: man yum.conf
#
# This one is required!
baseurl: http://download.fedoraproject.org/pub/epel/testing/5/$basearch
enabled: false
failovermethod: priority
gpgcheck: true
gpgkey: file:///etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL
name: Extra Packages for Enterprise Linux 5 - Testing

30
examples/example4 Normal file
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#cloud-config
#
# This is an example file to configure an instance's trusted CA certificates
# system-wide for SSL/TLS trust establishment when the instance boots for the
# first time.
#
# Make sure that this file is valid yaml before starting instances.
# It should be passed as user-data when starting the instance.
ca-certs:
# If present and set to True, the 'remove-defaults' parameter will remove
# all the default trusted CA certificates that are normally shipped with
# Ubuntu.
# This is mainly for paranoid admins - most users will not need this
# functionality.
remove-defaults: true
# If present, the 'trusted' parameter should contain a certificate (or list
# of certificates) to add to the system as trusted CA certificates.
# Pay close attention to the YAML multiline list syntax. The example shown
# here is for a list of multiline certificates.
trusted:
- |
-----BEGIN CERTIFICATE-----
YOUR-ORGS-TRUSTED-CA-CERT-HERE
-----END CERTIFICATE-----
- |
-----BEGIN CERTIFICATE-----
YOUR-ORGS-TRUSTED-CA-CERT-HERE
-----END CERTIFICATE-----

20
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#cloud-config
#
# This is an example file to automatically configure resolv.conf when the
# instance boots for the first time.
#
# Ensure that your yaml is valid and pass this as user-data when starting
# the instance. Also be sure that your cloud.cfg file includes this
# configuration module in the appropirate section.
#
manage-resolv-conf: true
resolv_conf:
nameservers: ['8.8.4.4', '8.8.8.8']
searchdomains:
- foo.example.com
- bar.example.com
domain: example.com
options:
rotate: true
timeout: 1

1
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package_upgrade: True

60
src/ccmodules.h Normal file
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
/*
* List existing modules so they can be registered from main.c
*/
#pragma once
extern struct cc_module_handler_struct package_upgrade_cc_module;
extern struct cc_module_handler_struct write_files_cc_module;
extern struct cc_module_handler_struct packages_cc_module;
extern struct cc_module_handler_struct groups_cc_module;
extern struct cc_module_handler_struct users_cc_module;
extern struct cc_module_handler_struct ssh_authorized_keys_cc_module;
extern struct cc_module_handler_struct service_cc_module;
struct cc_module_handler_struct *cc_module_structs[] = {
&package_upgrade_cc_module,
&write_files_cc_module,
&packages_cc_module,
&groups_cc_module,
&users_cc_module,
&ssh_authorized_keys_cc_module,
&service_cc_module,
NULL
};

82
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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <glib.h>
#include "handlers.h"
#include "cloud_config.h"
#include "lib.h"
#define MOD "groups: "
#define COMMAND_SIZE 256
static gboolean groups_item(GNode* node, gpointer data) {
gchar command_groupadd[COMMAND_SIZE];
gchar command_usermod[COMMAND_SIZE];
if (!node->data) {
/* null placeholder */
g_node_children_foreach(node, G_TRAVERSE_ALL,
(GNodeForeachFunc)groups_item, NULL);
} else if (!data) {
/* add new group */
LOG(MOD "Adding %s group...\n", (char*)node->data);
g_snprintf(command_groupadd, COMMAND_SIZE, "groupadd -f %s",
(char*)node->data);
exec_task(command_groupadd);
g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_LEAVES, -1,
groups_item, node->data);
} else {
/* add user to new group */
LOG(MOD "Adding %s to %s group...\n", (char*)node->data, (char*)data);
g_snprintf(command_usermod, COMMAND_SIZE, "usermod -a -G %s %s",
(char*)data, (char*)node->data);
exec_task(command_usermod);
}
return false;
}
void groups_handler(GNode *node) {
LOG(MOD "Groups Handler running...\n");
g_node_children_foreach(node, G_TRAVERSE_ALL,
(GNodeForeachFunc)groups_item, NULL);
}
struct cc_module_handler_struct groups_cc_module = {
.name = "groups",
.handler = &groups_handler
};

70
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <glib.h>
#include "handlers.h"
#include "cloud_config.h"
#include "lib.h"
#define MOD "package_upgrade: "
void package_upgrade_handler(GNode *node) {
bool do_upgrade;
LOG(MOD "System Software Update Handler running...\n");
GNode* val = g_node_first_child(node);
if (!val) {
LOG(MOD "Corrupt userdata!\n");
return;
}
if (!cloud_config_bool(val, &do_upgrade)) {
return;
}
if (do_upgrade) {
LOG(MOD "Performing system software update.\n");
exec_task("/usr/bin/swupd_update");
} else {
LOG(MOD "Skipping system software update.\n");
}
}
struct cc_module_handler_struct package_upgrade_cc_module = {
.name = "package_upgrade",
.handler = &package_upgrade_handler
};

68
src/ccmodules/packages.c Normal file
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <glib.h>
#include "handlers.h"
#include "cloud_config.h"
#include "lib.h"
#define MOD "packages: "
#define COMMAND_SIZE 256
static gboolean packages_item(GNode* node, gpointer data) {
gchar command[COMMAND_SIZE];
g_snprintf(command, COMMAND_SIZE, "/usr/bin/clr_bundle_add %s",
(char*)node->data);
LOG(MOD "Installing %s..\n", (char*)node->data);
exec_task(command);
return false;
}
void packages_handler(GNode *node) {
LOG(MOD "Packages Handler running...\n");
/*
* due to node possibly being a list of lists, just ignore all
* non-leave nodes.
*/
g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_LEAVES, -1, packages_item, NULL);
}
struct cc_module_handler_struct packages_cc_module = {
.name = "packages",
.handler = &packages_handler
};

90
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <glib.h>
#include "handlers.h"
#include "lib.h"
#define MOD "service: "
#define COMMAND_SIZE 2048
static gboolean service_action(GNode* node, gpointer data) {
gchar c[COMMAND_SIZE];
g_snprintf(c, COMMAND_SIZE, "systemctl %s %s", (char*)data, (char*)node->data);
exec_task(c);
return false;
}
static void service_item(GNode* node, gpointer data) {
if (!node->data) {
node = node->children;
} else {
LOG(MOD "Unexpected non-sequence data at %s!\n", (char*)node->data);
}
if (!node->children) {
LOG(MOD "service action %s provided but no service name to apply action to\n!", (char*)node->data);
return;
}
if ((g_strcmp0(node->data, "enable") != 0) &&
(g_strcmp0(node->data, "disable") != 0) &&
(g_strcmp0(node->data, "start") != 0) &&
(g_strcmp0(node->data, "stop") != 0) &&
(g_strcmp0(node->data, "restart") != 0) &&
(g_strcmp0(node->data, "reload") != 0) &&
(g_strcmp0(node->data, "isolate") != 0) &&
(g_strcmp0(node->data, "mask") != 0) &&
(g_strcmp0(node->data, "unmask") != 0)) {
LOG(MOD "service action %s is not a valid service action\n", (char*)node->data);
return;
}
g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_LEAVES, -1, service_action, node->data);
}
void service_handler(GNode *node) {
LOG(MOD "Service Handler running...\n");
g_node_children_foreach(node, G_TRAVERSE_ALL, service_item, NULL);
}
struct cc_module_handler_struct service_cc_module = {
.name = "service",
.handler = &service_handler
};

116
src/ccmodules/ssh_authorized_keys.c Normal file
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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <pwd.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/stat.h>
#include <glib.h>
#include "handlers.h"
#include "cloud_config.h"
#include "lib.h"
#include "default_user.h"
#define MOD "SSH authorized keys: "
gboolean ssh_authorized_keys_write_ssh_key(const gchar* ssh_key, const gchar* username) {
int fd;
gchar auth_keys_path[PATH_MAX];
struct passwd *pw;
pw = getpwnam(username);
if (pw && pw->pw_dir) {
g_snprintf(auth_keys_path, PATH_MAX, "%s/.ssh", pw->pw_dir);
if (make_dir(auth_keys_path, S_IRWXU) != 0) {
LOG(MOD "Cannot create %s.\n", auth_keys_path);
return false;
}
if (chown_path(auth_keys_path, username, username) != 0) {
LOG(MOD "Cannot change the owner and group of %s.\n", auth_keys_path);
return false;
}
g_strlcat(auth_keys_path, "/authorized_keys", PATH_MAX);
fd = open(auth_keys_path, O_CREAT|O_APPEND|O_WRONLY, S_IRUSR|S_IWUSR);
if (-1 == fd) {
LOG(MOD "Cannot open %s.\n", auth_keys_path);
return false;
}
LOG(MOD "Using %s\n", auth_keys_path);
LOG(MOD "Writing %s\n", ssh_key);
write(fd, ssh_key, strlen(ssh_key));
write(fd, "\n", 1);
close(fd);
if (chown_path(auth_keys_path, username, username) != 0) {
LOG(MOD "Cannot change the owner and group of %s.\n", auth_keys_path);
return false;
}
}
return true;
}
gboolean ssh_authorized_keys_item(GNode* node, gpointer username) {
if (ssh_authorized_keys_write_ssh_key(node->data, username)) {
return false;
}
return true;
}
void ssh_authorized_keys_handler(GNode *node) {
LOG(MOD "SSH authorized keys Handler running...\n");
gchar *username = cloud_config_get_global("first_user");
if (!username) {
username = DEFAULT_USER_USERNAME;
}
LOG(MOD "User %s\n", (char*)username);
g_node_traverse(node, G_IN_ORDER, G_TRAVERSE_LEAVES,
-1, ssh_authorized_keys_item, username);
}
struct cc_module_handler_struct ssh_authorized_keys_cc_module = {
.name = "ssh_authorized_keys",
.handler = &ssh_authorized_keys_handler
};

224
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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <pwd.h>
#include <fcntl.h>
#include <unistd.h>
#include <glib.h>
#include "handlers.h"
#include "cloud_config.h"
#include "lib.h"
#define MOD "users: "
#define COMMAND_SIZE 2048
#define BUFFER_SIZE 1024
static void users_add_username(GNode* node, char* command, gpointer data);
static void users_add_option_format(GNode* node, char* command, gpointer data);
static void users_add_option(GNode* node, char* command, gpointer data);
static gboolean users_write_sudo(GNode* node, gpointer data);
extern gboolean ssh_authorized_keys_item(GNode* node, gpointer username);
struct users_options_data {
const gchar* key;
void (*func)(GNode* node, char* command, gpointer data);
gpointer data;
};
static gchar users_current_username[LOGIN_NAME_MAX];
static struct users_options_data users_options[] = {
{"name", users_add_username, " %s " },
{"gecos", users_add_option_format, " -c '%s' " },
{"homedir", users_add_option_format, " -d %s " },
{"primary-group", users_add_option_format, " -g %s " },
{"groups", users_add_option_format, " -G %s " },
{"lock-passwd", NULL, NULL },
{"inactive", NULL, NULL },
{"passwd", users_add_option_format, " -p %s " },
{"no-create-home", users_add_option, " -M , -m " },
{"no-user-group", users_add_option, " -N , -U " },
{"no-log-init", users_add_option, " -l ," },
{"expiredate", users_add_option_format, " -e %s " },
{"ssh-authorized-keys", NULL, NULL },
{"sudo", NULL, NULL },
{"system", users_add_option_format, " -r " },
{NULL}
};
static void users_add_username(GNode* node, char* command, gpointer data) {
char buffer[BUFFER_SIZE];
g_snprintf(buffer, BUFFER_SIZE, data, node->data);
g_strlcat(command, buffer, COMMAND_SIZE);
g_strlcpy(users_current_username, node->data, LOGIN_NAME_MAX);
if (!cloud_config_get_global("first_user")) {
cloud_config_set_global("first_user", g_strdup(users_current_username));
}
}
static void users_add_option_format(GNode* node, char* command, gpointer data) {
char buffer[BUFFER_SIZE];
g_snprintf(buffer, BUFFER_SIZE, data, node->data);
g_strlcat(command, buffer, COMMAND_SIZE);
}
static void users_add_option(GNode* node, char* command, gpointer data) {
bool b;
gchar** tokens = g_strsplit(data, ",", 2);
guint len = g_strv_length(tokens);
cloud_config_bool(node, &b);
if (b) {
if (len > 0) {
g_strlcat(command, tokens[0], COMMAND_SIZE);
}
} else {
if (len > 1) {
g_strlcat(command, tokens[1], COMMAND_SIZE);
}
}
g_strfreev(tokens);
}
static gboolean users_write_sudo(GNode* node, gpointer data) {
int fd;
gchar sudoers_file[PATH_MAX];
g_snprintf(sudoers_file, PATH_MAX, "/etc/sudoers.d");
if (make_dir(sudoers_file, S_IRUSR|S_IWUSR) != 0) {
return false;
}
g_strlcat(sudoers_file, "/cloud-init", PATH_MAX);
fd = open(sudoers_file, O_CREAT|O_APPEND|O_WRONLY, S_IRUSR|S_IWUSR);
if (-1 == fd) {
LOG(MOD "Cannot open %s\n", sudoers_file);
return false;
}
write(fd, node->data, strlen(node->data));
write(fd, "\n", 1);
close(fd);
return false;
}
static void users_item(GNode* node, gpointer data) {
if (node->data) {
/* to avoid bugs with key(gecos, etc) as username */
if (node->children) {
for (size_t i = 0; users_options[i].key != NULL; ++i) {
if (0 == g_strcmp0(node->data, users_options[i].key)) {
if (users_options[i].func) {
users_options[i].func(node->children, data,
users_options[i].data);
}
return;
}
}
LOG(MOD "No handler for %s.\n", (char*)node->data);
return;
}
users_add_username(node, data, "%s");
} else {
bool b;
gchar command[COMMAND_SIZE] = "useradd ";
memset(users_current_username, 0, LOGIN_NAME_MAX);
g_node_children_foreach(node, G_TRAVERSE_ALL, users_item, command);
if (0 == strlen(users_current_username)) {
LOG(MOD "Missing username.\n");
return;
}
LOG(MOD "Adding %s user...\n", users_current_username);
LOGD("Command: %s", command);
exec_task(command);
CLOUD_CONFIG_KEY(LOCK_PASSWD, "lock-passwd");
CLOUD_CONFIG_KEY(INACTIVE, "inactive");
CLOUD_CONFIG_KEY(SSH_AUTH_KEYS, "ssh-authorized-keys");
CLOUD_CONFIG_KEY(SUDO, "sudo");
GNode *item = cloud_config_find(node, LOCK_PASSWD);
if (item) {
cloud_config_bool(item, &b);
if (b) {
LOG(MOD "Locking %s user.\n", users_current_username);
g_snprintf(command, COMMAND_SIZE, "passwd -l %s",
users_current_username);
LOGD("Command: %s\n", command);
exec_task(command);
}
}
item = cloud_config_find(node, INACTIVE);
if (item) {
cloud_config_bool(item, &b);
if (b) {
LOG(MOD "Deactivating %s user...\n", users_current_username);
g_snprintf(command, COMMAND_SIZE, "usermod --expiredate 1 %s",
users_current_username);
LOGD("Command: %s\n", command);
exec_task(command);
}
}
item = cloud_config_find(node, SSH_AUTH_KEYS);
if (item) {
g_node_traverse(item->parent, G_IN_ORDER, G_TRAVERSE_LEAVES,
-1, ssh_authorized_keys_item, users_current_username);
}
item = cloud_config_find(node, SUDO);
if (item) {
g_node_traverse(item->parent, G_IN_ORDER, G_TRAVERSE_LEAVES,
-1, users_write_sudo, NULL);
}
}
}
void users_handler(GNode *node) {
LOG(MOD "Users Handler running...\n");
g_node_children_foreach(node, G_TRAVERSE_ALL, users_item, NULL);
}
struct cc_module_handler_struct users_cc_module = {
.name = "users",
.handler = &users_handler
};

122
src/ccmodules/write_files.c Normal file
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@@ -0,0 +1,122 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <glib.h>
#include "handlers.h"
#include "cloud_config.h"
#include "lib.h"
#define MOD "write_files: "
static void write_files_item(GNode* node, gpointer data) {
const GNode* content;
const GNode* path;
const GNode* permissions;
const GNode* owner;
gchar **tokens;
guint tokens_size;
mode_t mode;
const gchar* username = "";
const gchar* groupname = "";
CLOUD_CONFIG_KEY(CONTENT, "content");
CLOUD_CONFIG_KEY(PATH, "path");
CLOUD_CONFIG_KEY(OWNER, "owner");
CLOUD_CONFIG_KEY(PERMISSIONS, "permissions");
content = cloud_config_find(node, CONTENT);
if (!content) {
LOG(MOD "Unable to write file without \"content\" value.\n");
return;
}
path = cloud_config_find(node, PATH);
if (!path) {
LOG(MOD "Unable to write file without \"path\" value.\n");
return;
}
permissions = cloud_config_find(node, PERMISSIONS);
owner = cloud_config_find(node, OWNER);
LOG(MOD "Writing to file %s: %s\n", (char*)path->data, (char*)content->data);
const int fd = open(path->data, O_WRONLY | O_CREAT, S_IRUSR | S_IWUSR);
if (fd == -1) {
LOG(MOD "Cannot open %s.\n", (char*)path->data);
return;
}
write(fd, content->data, strlen(content->data));
if (permissions) {
if (cloud_config_int_base(permissions, (int *)&mode, 8)) {
fchmod(fd, mode);
}
}
close(fd);
if (owner) {
tokens = g_strsplit_set(owner->data, ":.", 2);
tokens_size = g_strv_length(tokens);
if (tokens_size > 0) {
username = tokens[0];
if (tokens_size > 1) {
groupname = tokens[1];
}
chown_path(path->data, username, groupname);
}
g_strfreev(tokens);
}
}
void write_files_handler(GNode *node) {
LOG(MOD "Write Files Handler running...\n");
g_node_children_foreach(node, G_TRAVERSE_ALL, write_files_item, NULL);
}
struct cc_module_handler_struct write_files_cc_module = {
.name = "write_files",
.handler = &write_files_handler
};

120
src/curl.c Normal file
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@@ -0,0 +1,120 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stdbool.h>
#include <unistd.h>
#include <curl/curl.h>
#include <glib.h>
#include "lib.h"
#include "curl.h"
#define MOD "curl: "
#ifdef DEBUG
#define CURL_VERBOSE 1
#define CURL_NO_PROGRESS 0
#else
#define CURL_VERBOSE 0
#define CURL_NO_PROGRESS 1
#endif /* DEBUG */
gboolean curl_common_init(CURL** curl) {
*curl = curl_easy_init();
if (!*curl) {
LOG(MOD "Curl easy init failed\n");
goto fail1;
}
if (curl_easy_setopt(*curl, CURLOPT_VERBOSE, CURL_VERBOSE) != CURLE_OK) {
goto fail2;
}
if (curl_easy_setopt(*curl, CURLOPT_NOPROGRESS, CURL_NO_PROGRESS) != CURLE_OK) {
goto fail2;
}
if (curl_easy_setopt(*curl, CURLOPT_PROXY, "") != CURLE_OK) {
goto fail2;
}
if (curl_easy_setopt(*curl, CURLOPT_FAILONERROR, 1) != CURLE_OK) {
goto fail2;
}
return true;
fail2:
curl_easy_cleanup(*curl);
fail1:
return false;
}
gchar* curl_fetch_file(CURL* curl, gchar* url, int attempts, useconds_t u_sleep) {
int fd;
FILE* file;
gchar *filename;
filename = g_strdup("/tmp/cloud-init-XXXXXX");
fd = mkstemp(filename);
file = fdopen(fd, "w");
if (curl_easy_setopt(curl, CURLOPT_URL, url) != CURLE_OK) {
LOG(MOD "set url failed");
goto fail1;
}
if (curl_easy_setopt(curl, CURLOPT_WRITEDATA, file) != CURLE_OK) {
LOG(MOD "set write data failed");
goto fail2;
}
for (int i = 0; i < attempts; ++i) {
LOG(MOD "%s attempt %d\n", url, i);
if (curl_easy_perform(curl) == CURLE_OK) {
fclose(file);
return filename;
}
usleep(u_sleep);
}
fail2:
fclose(file);
fail1:
return NULL;
}

51
src/curl.h Normal file
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@@ -0,0 +1,51 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#include <unistd.h>
#include <curl/curl.h>
/*
* common initialization for CURL structures
*/
gboolean curl_common_init(CURL** curl);
/*
* On success, the function returns a path to the file downloaded,
* otherwise NULL is returned.
*/
gchar* curl_fetch_file(CURL* curl, gchar* url, int attempts, useconds_t u_sleep);

42
src/datasources.h Normal file
View File

@@ -0,0 +1,42 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
extern struct datasource_handler_struct openstack_datasource;
struct datasource_handler_struct *cloud_structs[] = {
&openstack_datasource,
NULL
};

215
src/datasources/openstack.c Normal file
View File

@@ -0,0 +1,215 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdlib.h>
#include <glib.h>
#include <json-glib/json-glib.h>
#include "handlers.h"
#include "curl.h"
#include "lib.h"
#include "userdata.h"
#include "json.h"
#include "default_user.h"
#define MOD "openstack: "
#define USERDATA_URL "http://169.254.169.254/openstack/latest/user_data"
#define METADATA_URL "http://169.254.169.254/openstack/latest/meta_data.json"
int openstack_main(bool first_boot);
static int openstack_metadata(CURL* curl);
static int openstack_userdata(CURL* curl);
static void openstack_item(GNode* node, gpointer data);
static void openstack_metadata_not_implemented(GNode* node);
static void openstack_metadata_keys(GNode* node);
static void openstack_metadata_hostname(GNode* node);
static void openstack_metadata_public_keys(GNode* node);
static void openstack_metadata_name(GNode* node);
extern gboolean ssh_authorized_keys_write_ssh_key(const gchar* node, const gchar* username);
struct openstack_metadata_data {
const gchar* key;
void (*func)(GNode* node);
};
static struct openstack_metadata_data openstack_metadata_options[] = {
{"random_seed", openstack_metadata_not_implemented },
{"uuid", openstack_metadata_not_implemented },
{"availability_zone", openstack_metadata_not_implemented },
{"keys", openstack_metadata_keys },
{"hostname", openstack_metadata_hostname },
{"launch_index", openstack_metadata_not_implemented },
{"public_keys", openstack_metadata_public_keys },
{"project_id", openstack_metadata_not_implemented },
{"name", openstack_metadata_name },
{"files", openstack_metadata_not_implemented },
{"meta", openstack_metadata_not_implemented },
{NULL}
};
struct datasource_handler_struct openstack_datasource = {
.datasource="openstack",
.handler=&openstack_main
};
int openstack_main(bool first_boot) {
int result_code = EXIT_FAILURE;
CURL* curl = NULL;
if (!curl_common_init(&curl)) {
LOG(MOD "Curl initialize failed\n");
goto clean;
}
if (first_boot) {
if (openstack_metadata(curl) != EXIT_SUCCESS) {
LOG(MOD "Get and process metadata fail\n");
goto clean;
}
}
result_code = EXIT_SUCCESS;
if (openstack_userdata(curl) != EXIT_SUCCESS) {
LOG(MOD "No userdata provided to this machine\n");
goto clean;
}
clean:
curl_easy_cleanup(curl);
return result_code;
}
static int openstack_userdata(CURL* curl) {
int result_code;
gchar* data_filename = NULL;
LOG(MOD "Fetching userdata file URL %s\n", USERDATA_URL );
data_filename = curl_fetch_file(curl, USERDATA_URL, 1, 0);
if (!data_filename) {
LOG(MOD "Fetch userdata failed\n");
return EXIT_FAILURE;
}
result_code = userdata_process_file(data_filename);
g_free(data_filename);
return result_code;
}
static int openstack_metadata(CURL* curl) {
GError* error = NULL;
JsonParser* parser = NULL;
gchar* data_filename = NULL;
GNode* node = NULL;
int result_code = EXIT_FAILURE;
parser = json_parser_new();
LOG(MOD "Fetching metadata file URL %s\n", METADATA_URL );
data_filename = curl_fetch_file(curl, METADATA_URL, 10, 300000);
if (!data_filename) {
LOG(MOD "Fetch metadata failed\n");
goto fail1;
}
json_parser_load_from_file(parser, data_filename, &error);
if (error) {
LOG(MOD "Unable to parse '%s': %s\n", data_filename, error->message);
g_error_free(error);
goto fail2;
}
node = g_node_new(g_strdup(data_filename));
json_parse(json_parser_get_root(parser), node, false);
cloud_config_dump(node);
g_node_children_foreach(node, G_TRAVERSE_ALL, openstack_item, NULL);
result_code = EXIT_SUCCESS;
fail2:
g_object_unref(parser);
g_node_destroy(node);
fail1:
return result_code;
}
static void openstack_item(GNode* node, gpointer data) {
size_t i;
if (node->data) {
for (i = 0; openstack_metadata_options[i].key != NULL; ++i) {
if (g_strcmp0(node->data, openstack_metadata_options[i].key) == 0) {
LOG(MOD "Metadata using %s handler\n", (char*)node->data);
openstack_metadata_options[i].func(node->children);
return;
}
}
LOG(MOD "Metadata no handler for %s.\n", (char*)node->data);
}
}
static void openstack_metadata_not_implemented(GNode* node) {
LOG(MOD "Not implemented yet\n");
}
static void openstack_metadata_keys(GNode* node) {
while (node) {
if (g_strcmp0("data", node->data) == 0) {
LOG(MOD "keys processing %s\n", (char*)node->data);
ssh_authorized_keys_write_ssh_key(node->children->data, DEFAULT_USER_USERNAME);
} else {
LOG(MOD "keys nothing to do with %s\n", (char*)node->data);
}
node = node->next;
}
}
static void openstack_metadata_hostname(GNode* node) {
LOG(MOD "Metadata hostname not implemented yet\n");
}
static void openstack_metadata_public_keys(GNode* node) {
LOG(MOD "Metadata public_keys not implemented yet\n");
}
static void openstack_metadata_name(GNode* node) {
LOG(MOD "Metadata name not implemented yet\n");
}

59
src/debug.c Normal file
View File

@@ -0,0 +1,59 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdbool.h>
#include <glib.h>
#ifdef DEBUG
static gboolean node_dump(GNode *node, gpointer data) {
fprintf(stderr, "debug: ");
for (guint i = 0; i < g_node_depth(node); i++)
fprintf(stderr, " ");
fprintf(stderr, "[%d]:%s\n", g_node_depth(node), node ? (char*)node->data : "(null)");
return(false);
}
void cloud_config_dump(GNode *node) {
fprintf(stderr, "debug: " "======== Dumping userdata GNode: ========\n");
g_node_traverse(node, G_PRE_ORDER, G_TRAVERSE_ALL, -1, node_dump, NULL);
}
#else
void cloud_config_dump(GNode* node) {}
#endif /* DEBUG */

43
src/debug.h Normal file
View File

@@ -0,0 +1,43 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glib.h>
void cloud_config_dump(GNode* node);

71
src/default_user.h Normal file
View File

@@ -0,0 +1,71 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#ifndef DEFAULT_USER_HOME_DIR
#define DEFAULT_USER_HOME_DIR "/home/clear"
#endif /* DEFAULT_USER_HOME_DIR */
#ifndef DEFAULT_USER_INACTIVE
#define DEFAULT_USER_INACTIVE "-1"
#endif /* DEFAULT_USER_INACTIVE */
#ifndef DEFAULT_USER_EXPIREDATE
#define DEFAULT_USER_EXPIREDATE ""
#endif /* DEFAULT_USER_EXPIREDATE */
#ifndef DEFAULT_USER_SHELL
#define DEFAULT_USER_SHELL "/bin/bash"
#endif /* DEFAULT_USER_SHELL */
#ifndef DEFAULT_USER_USERNAME
#define DEFAULT_USER_USERNAME "clear"
#endif /* DEFAULT_USER_USERNAME */
#ifndef DEFAULT_USER_GECOS
#define DEFAULT_USER_GECOS "Clear Linux"
#endif /* DEFAULT_USER_GECOS */
#ifndef DEFAULT_USER_PASSWORD
#define DEFAULT_USER_PASSWORD ""
#endif /* DEFAULT_USER_PASSWORD */
#ifndef DEFAULT_USER_SUDO
#define DEFAULT_USER_SUDO "[\"ALL=(ALL) NOPASSWD:ALL\"]"
#endif /* DEFAULT_USER_SUDO */

53
src/handlers.h Normal file
View File

@@ -0,0 +1,53 @@
/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#include <glib.h>
struct cc_module_handler_struct {
gchar *name;
void (*handler)(GNode *node);
};
struct interpreter_handler_struct {
gchar *shebang;
int (*handler)(const gchar* filename);
};
struct datasource_handler_struct {
gchar *datasource;
int (*handler)(bool first_boot);
};

44
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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
extern struct interpreter_handler_struct cloud_config_interpreter;
extern struct interpreter_handler_struct shell_script_interpreter;
struct interpreter_handler_struct *interpreter_structs[] = {
&cloud_config_interpreter,
&shell_script_interpreter,
NULL
};

312
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <errno.h>
#include <glib.h>
#include <yaml.h>
#include "cloud_config.h"
#include "handlers.h"
#include "ccmodules.h"
#include "lib.h"
#define SEQ 1
#define MAP 2
#define VAL 4
static GHashTable *cloud_config_global_data = NULL;
static bool cloud_config_parse(yaml_parser_t *parser, GNode *data, int state);
static gboolean cloud_config_simplify(GNode *node, gpointer data);
static gboolean cloud_config_free(GNode *node, gpointer data);
static void cloud_config_process(GNode *userdata, GList *handlers);
int cloud_config_main(const gchar* filename) {
yaml_parser_t parser;
GList* handlers = NULL;
int i;
cloud_config_global_data = g_hash_table_new(g_str_hash, g_str_equal);
LOG("Parsing user data file %s\n", filename);
GNode* userdata = g_node_new(g_strdup(filename));
FILE* cloud_config_file = fopen(filename, "rb");
yaml_parser_initialize(&parser);
yaml_parser_set_input_file(&parser, cloud_config_file);
cloud_config_parse(&parser, userdata, 0);
yaml_parser_delete(&parser);
fclose(cloud_config_file);
g_node_traverse(userdata, G_POST_ORDER, G_TRAVERSE_ALL, -1, cloud_config_simplify, NULL);
cloud_config_dump(userdata);
/* built-in handlers */
for (i = 0; cc_module_structs[i] != NULL; ++i) {
LOG("Loaded handler for block \"%s\"\n", cc_module_structs[i]->name);
handlers = g_list_prepend(handlers, cc_module_structs[i]);
}
cloud_config_process(userdata, handlers);
g_node_traverse(userdata, G_POST_ORDER, G_TRAVERSE_ALL, -1, cloud_config_free, NULL);
g_node_destroy(userdata);
g_list_free(handlers);
g_hash_table_destroy(cloud_config_global_data);
return 0;
}
bool cloud_config_bool(GNode* node, bool *b) {
int i;
const gchar *true_values[] = {"1", "true", "yes", "y", "on", NULL};
const gchar *false_values[] = {"0", "false", "no", "n", "off", NULL};
for (i=0; true_values[i] != NULL; ++i) {
if (g_ascii_strncasecmp(node->data, true_values[i],
strlen(true_values[i])) == 0) {
*b = true;
return true;
}
}
for (i = 0; false_values[i] != NULL; ++i) {
if (g_ascii_strncasecmp(node->data, false_values[i],
strlen(false_values[i])) == 0) {
*b = false;
return true;
}
}
/* unknown values: consider as "false" */
LOG("Unknown bool string (\"%s\") interpreted as \"false\"\n", (char*)node->data);
return false;
}
bool cloud_config_int_base(const GNode* node, int *i, int base) {
char *endptr;
*i = (int)strtol(node->data, &endptr, base);
if (errno == ERANGE) {
fprintf(stderr, "Number %s is out of range.\n", (char*)node->data);
return false;
}
if (strlen( endptr ) > 0) {
fprintf(stderr, "String %s is not a valid number.\n", (char*)endptr);
return false;
}
return true;
}
bool cloud_config_int(const GNode* node, int *i) {
return cloud_config_int_base(node, i, 10);
}
GNode *cloud_config_find(GNode* node, gchar** path) {
GNode* child;
if (!path) {
if (g_node_depth(node) == 0) {
return NULL;
}
/* reached the end of our search, so return this node as value */
return g_node_first_child(node);
}
child = g_node_first_child(node);
while (child) {
if (g_strcmp0(child->data, path[0]) == 0) {
/* recurse */
return cloud_config_find(child, (gchar**)path[1]);
}
child = g_node_next_sibling(child);
}
return NULL;
}
void cloud_config_set_global(gpointer key, gpointer value) {
g_hash_table_insert(cloud_config_global_data, key, value);
}
gpointer cloud_config_get_global(gpointer key) {
return g_hash_table_lookup(cloud_config_global_data, key);
}
static bool cloud_config_parse(yaml_parser_t *parser, GNode *node, int state) {
GNode *last_leaf = node;
yaml_event_t event;
bool finished = 0;
while (!finished) {
if (!yaml_parser_parse(parser, &event)) {
LOG("An error occurred while the yaml file was parsed.\n");
return false;
}
switch (event.type) {
case YAML_SCALAR_EVENT:
if (state & SEQ) {
last_leaf = g_node_append(node, g_node_new(g_strdup((gchar*) event.data.scalar.value)));
} else if (state & VAL) {
g_node_append_data(last_leaf, g_strdup((gchar*) event.data.scalar.value));
state &= MAP | SEQ;
} else {
last_leaf = g_node_append(node, g_node_new(g_strdup((gchar*) event.data.scalar.value)));
state |= VAL;
}
break;
case YAML_SEQUENCE_START_EVENT:
/* remove VAL bit if it's set */
if (state & MAP)
state = MAP;
if (state & SEQ) {
last_leaf = g_node_append(node, g_node_new(NULL));
} else {
last_leaf = g_node_append(last_leaf, g_node_new(NULL));
}
if (!cloud_config_parse(parser, last_leaf, SEQ)) {
return false;
}
last_leaf = last_leaf->parent;
break;
case YAML_SEQUENCE_END_EVENT:
finished = true;
break;
case YAML_MAPPING_START_EVENT:
last_leaf = g_node_append(node, g_node_new(NULL));
if (!cloud_config_parse(parser, last_leaf, MAP)) {
return false;
}
last_leaf = last_leaf->parent;
break;
case YAML_MAPPING_END_EVENT:
last_leaf = last_leaf->parent;
finished = true;
break;
case YAML_STREAM_END_EVENT:
finished = true;
break;
case YAML_NO_TOKEN:
LOG("Unexpectedly reached end of YAML input!");
finished = true;
break;
default:
/* Ignore these for now */
break;
}
if (!finished) {
yaml_event_delete(&event);
}
}
return true;
}
static gboolean cloud_config_free(GNode *node, gpointer data) {
if (node->data) {
g_free(node->data);
}
return false;
}
static void cloud_config_process(GNode *userdata, GList *handlers) {
/* toplevel node is always a sequence, so skip over that sequence */
userdata = g_node_first_child(userdata);
/* loop over all toplevel elements and find modules to handle them */
for (guint i = 0; i < g_node_n_children(userdata); i++) {
GNode *node = g_node_nth_child(userdata, i);
struct cc_module_handler_struct* h;
bool found = false;
for (guint j = 0; j < g_list_length(handlers); j++) {
h = g_list_nth_data(handlers, j);
if (g_strcmp0(h->name, node->data) == 0) {
found = true;
break;
}
}
if (found) {
LOG("Executing handler for block \"%s\"\n", (char*)node->data);
h->handler(node);
} else {
LOG("No handler found for block \"%s\"\n", (char*)node->data);
}
}
}
static gboolean cloud_config_simplify(GNode *node, gpointer data) {
if (node->data) {
return false;
}
GNode *child = g_node_last_child(node);
while (child) {
if (child->data) {
child = g_node_prev_sibling(child);
continue;
}
GNode *remove = child;
child = g_node_prev_sibling(child);
g_node_append(node->parent, g_node_copy(remove));
g_node_unlink(remove);
}
if (g_node_n_children(node) == 0) {
g_node_unlink(node);
}
return false;
}
struct interpreter_handler_struct cloud_config_interpreter = {
.shebang = "#cloud-config",
.handler = &cloud_config_main
};

57
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#include <yaml.h>
#include <glib.h>
/*
* Macro helper - allows for easy retrieval of node data.
* Use as follows:
* CLOUD_CONFIG_KEY(NAME_OF_KEY, "PATHPART1", "PATHPART2" ......)
*/
#define CLOUD_CONFIG_KEY(name, ...) gchar* name[] = { __VA_ARGS__, 0}
bool cloud_config_bool(GNode* node, bool *b);
bool cloud_config_int(const GNode* node, int *i);
bool cloud_config_int_base(const GNode* node, int *i, int base);
GNode *cloud_config_find(GNode* node, gchar** path);
void cloud_config_set_global(gpointer key, gpointer value);
gpointer cloud_config_get_global(gpointer option);

66
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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <sys/stat.h>
#include <glib.h>
#include <yaml.h>
#include "handlers.h"
#include "lib.h"
#define MOD "shell_script: "
int shell_script_main(const gchar* filename) {
gchar full_path[PATH_MAX];
if (!realpath(filename, full_path)) {
LOG(MOD "Cannot get real path file %s\n", filename);
return 1;
}
if (chmod(full_path, S_IRUSR|S_IWUSR|S_IXUSR) != 0) {
LOG(MOD "Cannot execute file %s\n", filename);
return 1;
}
exec_task(full_path);
return 0; //FIXME replace with defined constants
}
struct interpreter_handler_struct shell_script_interpreter = {
.shebang = "#!",
.handler = &shell_script_main
};

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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdbool.h>
#include <stdio.h>
#include <json-glib/json-glib.h>
gchar* json_string(JsonNode* node) {
gchar buffer[64];
GType valueType = json_node_get_value_type(node);
switch (valueType) {
case G_TYPE_STRING:
return json_node_dup_string(node);
case G_TYPE_INT:
sprintf(buffer, "%d", (int)json_node_get_int(node));
break;
case G_TYPE_DOUBLE:
sprintf(buffer, "%f", json_node_get_double(node));
break;
case G_TYPE_BOOLEAN:
if (json_node_get_boolean(node)) {
sprintf(buffer, "%s", "true");
} else {
sprintf(buffer, "%s", "false");
}
break;
default:
sprintf(buffer, "%s", "Unknown type");
break;
}
return g_strdup(buffer);
}
void json_parse(JsonNode* root, GNode* node, bool parsing_array) {
if (JSON_NODE_TYPE(root) == JSON_NODE_OBJECT) {
JsonObject *object = json_node_get_object(root);
if (object) {
int j;
guint size;
GList* keys, *key = NULL;
GList* values, *value = NULL;
size = json_object_get_size(object);
keys = json_object_get_members(object);
values = json_object_get_values(object);
node = g_node_append(node, g_node_new(NULL));
for (j = 0, key = keys, value = values; j < size; j++) {
if (key) {
node = g_node_append(node->parent, g_node_new(g_strdup(key->data)));
}
if (value) {
json_parse(value->data, node, false);
}
key = g_list_next(key);
value = g_list_next(value);
}
if (keys) {
g_list_free(keys);
}
if (values) {
g_list_free(values);
}
}
} else if (JSON_NODE_TYPE(root) == JSON_NODE_ARRAY) {
JsonArray* array = json_node_get_array(root);
guint array_size = json_array_get_length (array);
JsonNode *array_element;
for (guint i = 0; i < array_size; i++) {
array_element = json_array_get_element(array, i);
json_parse(array_element, node, true);
}
} else if (JSON_NODE_TYPE(root) == JSON_NODE_VALUE) {
node = g_node_append(node, g_node_new(json_string(root)));
if (parsing_array) {
node = g_node_append(node, g_node_new(NULL));
}
}
}

40
src/json.h Normal file
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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#include <json-glib/json-glib.h>
void json_parse(JsonNode* root, GNode* node, bool parsing_array);

98
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
/*
* lib.c - collection of misc functions for modules to do work
*/
#include <stdlib.h>
#include <stdio.h>
#include <stdarg.h>
#include <sys/stat.h>
#include <pwd.h>
#include <grp.h>
#include <unistd.h>
#include <glib.h>
#include "debug.h"
#define MOD "lib: "
void LOG(const char *fmt, ...) {
va_list args;
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
}
void exec_task(const gchar* task) {
/*
* execute a process externally in a secured and limited enviroment,
* handle return values gracefully
*/
LOG(MOD "Executing: %s\n", task);
system(task);
}
int make_dir(const char* pathname, mode_t mode) {
struct stat stats;
if (stat(pathname, &stats) != 0) {
if (mkdir(pathname, mode) != 0) {
LOG(MOD "Cannot create directory %s\n", pathname);
return -1;
}
} else if (!S_ISDIR (stats.st_mode)) {
LOG(MOD "%s already exists and is not a directory.\n",
pathname);
return -1;
}
return 0;
}
int chown_path(const char* pathname, const char* ownername, const char* groupname) {
uid_t owner_id;
gid_t group_id;
struct passwd *pw;
struct group *grp;
pw = getpwnam(ownername);
owner_id = pw ? pw->pw_uid : (uid_t) - 1;
grp = getgrnam(groupname);
group_id = grp ? grp->gr_gid : (gid_t) - 1;
return chown(pathname, owner_id, group_id);
}

54
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#include <glib.h>
#include "debug.h"
#ifdef DEBUG
#define STRINGIZE_DETAIL(x) #x
#define STRINGIZE(x) STRINGIZE_DETAIL(x)
#define LOGD(...) LOG(__BASE_FILE__":"STRINGIZE(__LINE__)" - "__VA_ARGS__)
#else
#define LOGD(...)
#define cloud_config_dump(...)
#endif /* DEBUG */
void exec_task(const gchar* task);
void LOG(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
int make_dir(const char* pathname, mode_t mode);
int chown_path(const char* pathname, const char* ownername, const char* groupname);

142
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/***
Copyright (C) 2015 Intel Corporation
Author: Auke-jan H. Kok <auke-jan.h.kok@intel.com>
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stdio.h>
#include <stdbool.h>
#include <unistd.h>
#include <getopt.h>
#include <glib.h>
#include "handlers.h"
#include "lib.h"
#include "userdata.h"
#include "datasources.h"
#include "default_user.h"
static struct option opts[] = {
{ "user-data-file", 1, NULL, 'u' },
{ "help", 0, NULL, 'h' },
{ "version", 0, NULL, 'v' },
{ "first-boot", 0, NULL, 'b' },
{ NULL, 0, NULL, 0 }
};
int main(int argc, char *argv[]) {
int result_code = EXIT_SUCCESS;
gchar *userdata_filename = NULL;
bool first_boot = false;
int c;
int i;
while (true) {
c = getopt_long(argc, argv, "u:hvb", opts, &i);
if (c == -1) {
break;
}
switch (c) {
case 'u':
userdata_filename = g_strdup(optarg);
break;
case 'h':
LOG("Usage: %s [options]\n", argv[0]);
LOG("-u, --user-data-file [file] specify a custom user data file\n");
LOG("-h, --help display this help message\n");
LOG("-v, --version display the version number of this program\n");
LOG("-b, --first-boot set up the system in its first boot (create default user, etc)\n");
exit(EXIT_FAILURE);
break;
case 'v':
fprintf(stdout, PACKAGE_NAME " " PACKAGE_VERSION "\n");
exit(EXIT_FAILURE);
break;
case 'b':
first_boot = true;
break;
}
}
#ifdef HAVE_CONFIG_H
LOG("clr-cloud-init version: %s\n", PACKAGE_VERSION);
#endif /* HAVE_CONFIG_H */
/* at one point in time this should likely be a fatal error */
if (geteuid() != 0) {
LOG("%s isn't running as root, this will most likely fail!\n", argv[0]);
}
if (first_boot) {
/* default user will be used by ccmodules and datasources */
char useradd_command[LINE_MAX] = { 0 };
snprintf(useradd_command, LINE_MAX, "useradd"
" -U -d '%s' -f '%s' -e '%s' -s '%s' -c '%s' -p '%s' '%s'"
, DEFAULT_USER_HOME_DIR
, DEFAULT_USER_INACTIVE
, DEFAULT_USER_EXPIREDATE
, DEFAULT_USER_SHELL
, DEFAULT_USER_GECOS
, DEFAULT_USER_PASSWORD
, DEFAULT_USER_USERNAME);
exec_task(useradd_command);
//FIXME: implement sudo (DEFAULT_USER_SUDO)
}
if (!userdata_filename) {
/* get/process userdata and metadata from datasources */
for (i = 0; cloud_structs[i] != NULL; ++i) {
result_code = cloud_structs[i]->handler(first_boot);
if (EXIT_SUCCESS == result_code) {
break;
}
}
} else {
result_code = userdata_process_file(userdata_filename);
}
exit(result_code);
}

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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#include <stdio.h>
#include <limits.h>
#include <stdlib.h>
#include <stdbool.h>
#include <glib.h>
#include "lib.h"
#include "interpreters.h"
#include "handlers.h"
#define MOD "userdata: "
int userdata_process_file(const gchar* filename) {
char shebang[LINE_MAX] = { 0 };
LOG(MOD "Looking for shebang file %s\n", filename);
FILE *userdata_file = fopen(filename, "rb");
fgets(shebang, LINE_MAX, userdata_file);
fclose(userdata_file);
LOG(MOD "Shebang found %s\n", shebang);
/* built-in interpreters */
for (int i = 0; interpreter_structs[i] != NULL; ++i) {
if (g_str_has_prefix(shebang, interpreter_structs[i]->shebang)) {
return interpreter_structs[i]->handler(filename);
}
}
LOG(MOD "No interpreter found for %s\n", shebang);
//FIXME define return codes, not use magic numbers
return 1;
}

39
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/***
Copyright (C) 2015 Intel Corporation
Author: Julio Montes <julio.montes@intel.com>
This file is part of clr-cloud-init.
clr-cloud-init is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
clr-cloud-init is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with clr-cloud-init. If not, see <http://www.gnu.org/licenses/>.
In addition, as a special exception, the copyright holders give
permission to link the code of portions of this program with the
OpenSSL library under certain conditions as described in each
individual source file, and distribute linked combinations
including the two.
You must obey the GNU General Public License in all respects
for all of the code used other than OpenSSL. If you modify
file(s) with this exception, you may extend this exception to your
version of the file(s), but you are not obligated to do so. If you
do not wish to do so, delete this exception statement from your
version. If you delete this exception statement from all source
files in the program, then also delete it here.
***/
#pragma once
#include <glib.h>
int userdata_process_file(const gchar* filename);

62
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#cloud-config
package_upgrade: true
package_upgrade: false
apt_upgrade: false
write_files:
-
content: |
A test file
path: /tmp/cloud-init-test-1
owner: nobody.nogroup
permissions: 0644
-
content: |
Another test file
path: /tmp/cloud-init-test-2
owner: root.root
permissions: 0600
packages:
- openstack-configure
- perl-basic
- os-core-dev
- [kernel-kvm, kvm-host]
groups:
- cloud-init: [nobody, games]
runcmd:
- [ ls, -l, / ]
- [ sh, -xc, "echo $(date) ': hello world!'" ]
- [ sh, -c, echo "=========hello world'=========" ]
- ls -l /root
- [ wget, "http://slashdot.org", -O, /tmp/index.html ]
users:
- name: foobar
gecos: Foo B. Bar
homedir: /home/foobar
primary-group: foobar
groups: users
selinux-user: staff_u
lock-passwd: false
ssh-import-id: foobar
inactive: true
passwd: $6$j212wezy$7H/1LT4f9/N3wpgNunhsIqtMj62OKiS3nyNwuizouQc3u7MbYCarYeAHWYPYb2FT.lbioDm2RrkJPb9BZMN1O/
no-create-home: true
no-user-group: true
no-log-init: true
expiredate: 2015-12-31
ssh-authorized-keys:
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDmHRP+1o+vBSg+ej714Y3iO5Osbr29dHL/WZQlsj
- ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC9GNA2I6IU+II1qoKP1Ttn/eNv8zquEDNii+EA5m
sudo:
- [ "ALL=(ALL) NOPASSWD:ALL", "ALL=(ALL) NOPASSWD:/bin/mysql" ]
- ALL=(ALL) NOPASSWD:ALL
system: true
ssh_authorized_keys:
- ssh-rsa BBBBB3NzaC1yc2EAAAADAQABAAABAQDmHRP+0000000000000000000000000000000000
- ssh-rsa BBBBB3NzaC1yc2EAAAADAQABAAABAQC9GNA21111111111111111111111111111111111
service:
- start: dbus0
- start: [ foo1, bar2 ]
- stop:
- foo3
- bar4
- [ foo5, bar6 ]