Issue #24: Update Molecule test suite to 3.0 and fix YAML lint issues.

roles/tower/meta/main.yml

@@ -1,3 +1,4 @@
+---
 galaxy_info:
   author: Jeff Geerling
   description: Tower role for Tower Operator for Kubernetes.
@@ -7,6 +8,14 @@ galaxy_info:
 
   min_ansible_version: 2.8
 
+  platforms:
+    - name: EL
+      versions:
+        - all
+    - name: Debian
+      versions:
+        - all
+
   galaxy_tags:
     - tower
     - awx

roles/tower/tasks/initialize.yml

@@ -7,7 +7,6 @@
     exit(0 if nsu > 0 else 1)'
     | awx-manage shell"
   ignore_errors: true
-  changed_when: false
   register: users_result
   changed_when: users_result.rc > 0
 
@@ -20,7 +19,7 @@
   when: users_result.rc > 0
   no_log: true
 
-- name: Create preload data if necessary.
+- name: Create preload data if necessary.  # noqa 305
   shell: >-
     kubectl exec -n {{ meta.namespace }} {{ tower_pod_name }} -- bash -c
     "awx-manage create_preload_data"

roles/tower/tasks/main.yml

@@ -44,7 +44,7 @@
   register: database_check
   when: k8s_defs_result is not changed
 
-- name: Migrate the database if the K8s resources were updated.
+- name: Migrate the database if the K8s resources were updated.  # noqa 305
   shell: >-
     kubectl exec -n {{ meta.namespace }} {{ tower_pod_name }} -- bash -c
     "awx-manage migrate --noinput"