Added linting to molecule.

- Currently the ubuntu images is a generic image that's actually 19.04.
  This image will be updated.

README.md

@@ -0,0 +1,16 @@
+os_release: Ansible Role
+================================================================================
+
+Grabs and parses the contents of /etc/os-release.
+
+This file holds additional information that may not be provided by the setup
+module. For example, if we wanted to know whether or not a host has Manjaro
+installed, it is not easy to figure this out from the setup module. The setup
+module produces `ansible_distribution=Archlinux` while this role produces
+`os_release.ID=manjaro`.
+
+License
+----------------------------------------
+
+GPL-3.0
+

meta/main.yml

@@ -1,53 +1,20 @@
+---
 galaxy_info:
-  author: your name
-  namespace: shnee
-  description: your role description
-  company: your company (optional)
-
-  # If the issue tracker for your role is not on github, uncomment the
-  # next line and provide a value
-  # issue_tracker_url: http://example.com/issue/tracker
 
-  # Choose a valid license ID from https://spdx.org - some suggested licenses:
-  # - BSD-3-Clause (default)
-  # - MIT
-  # - GPL-2.0-or-later
-  # - GPL-3.0-only
-  # - Apache-2.0
-  # - CC-BY-4.0
-  license: license (GPL-2.0-or-later, MIT, etc)
+  author: shnee
+  namespace: shnee
+  description: Retrieves the contents of /etc/os-release
 
+  license: GPL-3.0-only
   min_ansible_version: 2.1
 
-  # If this a Container Enabled role, provide the minimum Ansible Container version.
-  # min_ansible_container_version:
-
-  #
-  # Provide a list of supported platforms, and for each platform a list of versions.
-  # If you don't wish to enumerate all versions for a particular platform, use 'all'.
-  # To view available platforms and versions (or releases), visit:
-  # https://galaxy.ansible.com/api/v1/platforms/
-  #
-  # platforms:
-  # - name: Fedora
-  #   versions:
-  #   - all
-  #   - 25
-  # - name: SomePlatform
-  #   versions:
-  #   - all
-  #   - 1.0
-  #   - 7
-  #   - 99.99
+  platforms:
+  - name: EL
+    versions:
+     - 8
 
-  galaxy_tags: []
-    # List tags for your role here, one per line. A tag is a keyword that describes
-    # and categorizes the role. Users find roles by searching for tags. Be sure to
-    # remove the '[]' above, if you add tags to this list.
-    #
-    # NOTE: A tag is limited to a single word comprised of alphanumeric characters.
-    #       Maximum 20 tags per role.
+  galaxy_tags:
+    - distro
+    - system
 
 dependencies: []
-  # List your role dependencies here, one per line. Be sure to remove the '[]' above,
-  # if you add dependencies to this list.

molecule/default/converge.yml

@@ -3,5 +3,5 @@
   hosts: all
   tasks:
     - name: "Include shnee.os_release"
-      include_role:
+      ansible.builtin.include_role:
         name: "shnee.os_release"

molecule/default/molecule.yml

@@ -3,10 +3,18 @@ dependency:
   name: galaxy
 driver:
   name: docker
+lint: |
+  set -e
+  yamllint .
+  ansible-lint
 platforms:
-  - name: instance
+  - name: centos-8-stream
     image: quay.io/centos/centos:stream8
     pre_build_image: true
+  - name: ubuntu
+    # TODO This is only a temporary measure until we get a better image.
+    image: tanquetav/ubuntu-ansible:latest
+    pre_build_image: true
 provisioner:
   name: ansible
 verifier:

molecule/default/verify.yml

@@ -3,8 +3,30 @@
 
 - name: Verify
   hosts: all
-  gather_facts: false
+  vars:
+
+    # exp_vals is dict where each top-level field corresponds to the name of the
+    # of the platforms defined in molecule.yml. The key-value pairs under the
+    # top-level will be used to test against the values in os_release.
+    exp_vals:
+      ubuntu:
+        ID: ubuntu
+        ID_LIKE: debian
+        VERSION_ID: '19.04'
+      centos-8-stream:
+        ID: centos
+        ID_LIKE: rhel fedora
+        VERSION_ID: '8'
+
+  roles:
+    - shnee.os_release
+
   tasks:
-  - name: Example assertion
-    assert:
-      that: true
+
+    - name: Is the OS in exp_vals?
+      ansible.builtin.assert:
+        that: exp_vals[ansible_hostname] is defined
+    - name: Verify that os-release matches our expected values.
+      ansible.builtin.assert:
+        that: os_release[item.key] == item.value
+      loop: "{{ exp_vals[ansible_hostname] | dict2items }}"

tasks/main.yml

@@ -1,4 +1,9 @@
 ---
-# tasks file for os_release
-- debug:
-    msg: "System {{ inventory_hostname }} has uuid {{ ansible_product_uuid }}"
+- name: Retrieve and parse the contents of /etc/os-release
+  ansible.netcommon.cli_parse:
+    command: cat /etc/os-release
+    parser:
+      name: ansible.netcommon.native
+      os: linux
+      command: cat os-release
+    set_fact: os_release