Add a dnf.conf, and use it by default

The new dnf.conf is very similar to the yum.conf, but because the
in-tree Mock config specifies to use DNF, we should track a dnf.conf
here as well and use it by default.

Signed-off-by: Patrick McCarty <patrick.mccarty@intel.com>

Makefile.config

@@ -60,8 +60,8 @@ AUTOSPEC_CONF = $(TOPLVL)/projects/common/conf/autospec.conf
 # in "pkg-mapping" for cloning/pulling package repos.
 USE_PACKAGE_MAPPING = yes
 
-# Package manager config file. Default to the in-tree copy.
-PM_CONF = $(TOPLVL)/projects/common/conf/yum.conf
+# Package manager config file. Default to the in-tree copy of dnf.conf.
+PM_CONF = $(TOPLVL)/projects/common/conf/dnf.conf
 
 # Mock configuration file. Default to the in-tree copy.
 MOCK_CONF = $(TOPLVL)/projects/common/conf/clear.cfg

conf/README.md

@@ -17,7 +17,10 @@ as a starting point if you need to.
 * `clear.cfg`: default Mock configuration file used by various targets that
   call out to Mock. Config variable: `MOCK_CONF`
 
-* `yum.conf`: default package manager (YUM or DNF) configuration file, made
+* `dnf.conf`: DNF conf for use as the package manager configuration file, made
+  available for the framework's local repo support. Config variable: `PM_CONF`
+
+* `yum.conf`: YUM conf for use as the package manager configuration file, made
   available for the framework's local repo support. Config variable: `PM_CONF`
 
 * `koji.conf`: template Koji configuration file. It is installed by

conf/dnf.conf

@@ -0,0 +1,25 @@
+[main]
+cachedir=/var/cache/dnf
+keepcache=1
+debuglevel=1
+logfile=/var/log/dnf.log
+exactarch=1
+obsoletes=1
+gpgcheck=0
+plugins=0
+retries=10
+installonly_limit=3
+reposdir=/root/mash
+
+[clear]
+name=Clear
+baseurl=https://cdn.download.clearlinux.org/current/x86_64/os/
+enabled=1
+gpgcheck=0
+
+[clear-source]
+name=Clear sources
+failovermethod=priority
+baseurl=https://cdn.download.clearlinux.org/current/source/SRPMS/
+enabled=1
+gpgcheck=0