WIP: initial working tests

[baloo42]

I got it to work on my machines (ubuntu 16.04 + ubuntu 18.04). Next step should be to get it working in Zuul. As LXD is harder to install in CentOS/Fedora than in Ubuntu, I would start with Ubuntu and extend the pipelines in another PR for CentOS/Fedora.

PR Goal: Implement a full integration test with ubuntu in zuul.

[baloo42]

In ubuntu you have to prepare LXD in the following way:

- name: Install LXD as a snap
  shell: snap install lxd
  register: _snap_install_result
  changed_when: not(_snap_install_result.stderr is search('already installed'))

- name: Set fact for LXD preseed config
  set_fact:
    _lxd_preseed_config:
      config: {}
      cluster: null
      networks:
        - name: lxdbr0
          config:
            ipv4.address: auto
            ipv6.address: none
          description: ""
          managed: true
          type: ""
      storage_pools:
        - config: {}
          description: ""
          name: default
          driver: dir
      profiles:
        - name: default
          config: {}
          description: ""
          devices:
            eth0:
              name: eth0
              nictype: bridged
              parent: lxdbr0
              type: nic
            root:
              path: /
              pool: default
              type: disk

- name: Create LXD preseed file
  copy:
    content: "{{ _lxd_preseed_config | to_nice_yaml }}"
    dest: /tmp/lxd-preseed.yml
  register: _lxd_preseed_file_result

- name: Configure LXD with preseed file
  shell: cat /tmp/lxd-preseed.yml | lxd init --preseed
  when: _lxd_preseed_file_result is changed

@ssbarnea :

• Can we use this in some way to bootstrap a ubuntu instance in zuul?
• Can you explain how it is planned to run the scenarios molecule_xyz/scenarios/driver/xyz/molecule/{default,multi-node}?
• I assumed, the job molecule-tox-py36-ubuntu-bionic will run on ubuntu. Is this wrong?

[ssbarnea]

Ping me on irc when ready.