cloud-init-firstboot service will do initial tasks
* create and set up default user
* get and process metadata/userdata from datasources
* disable root login
this service will run once (firstboot)
cloud-init service won't run at the first boot
but it will do at next boot times
* verify/fix/resize/grow up partitions and filesystems
* get and process userdata from datasources (TODO: optional)
add blkid library
functions:
* disk_for_path: is a useful function to get
the disk path where a specific is mounted
for instance: / -> /dev/sda
* disk_resize_grow: resizes/grows partitions and filesystems
this function uses the last disk partition/filesystem
for resize it
Julio Montes