Cloud Init Support

[89luca89]

Adding cloudinit support for images can be really useful for the disk_source selection.

the terraform-libvirt provider, supports cloudinit images by using a specific resource:

data "template_file" "user_data" {
  template = file("./cloud_init.yml")
}

resource "libvirt_cloudinit_disk" "commoninit" {
  name      = "commoninit.iso"
  user_data = data.template_file.user_data.rendered
}

we should add them in the terraform-vm.tf.j2 file inside an if/else checking if this is a cloud-init image

the cloud_init.yml file can be a template, this is an example of user data:

#cloud-config
ssh_pwauth: True
chpasswd:
  list: |
    root:password
  expire: False

this enables the root user via ssh with password, so terrible can use it as a normal image

[89luca89]

@alegrey91 a basic implementation of cloud-init images support is implemented for all 4 Linux families

A few notes on this road:

• right now I did not find an official FreeBSD image.
• not all cloud-init images support dm_crypt and so luks, so for now I've decided to not allow luks on those instances
• a couple of terraform_custom_provisioners are needed on Debian and Suse images, because of unsupported repos or missing packages

about #41 you could try to use this branch to implement the travis-ci pipeline, using the example inventory in the folder as a base (tweak it to liking)