awx-operator/roles/tower/tasks/main.yml

---
- name: Include deployment type vars
  include_vars: "{{ deployment_type }}.yml"

- name: Ensure configured Tower resources exist in the cluster.
  k8s:
    apply: yes
    definition: "{{ lookup('template', item) | from_yaml_all | list }}"
  register: k8s_defs_result
  with_items:
    - tower_postgres.yaml.j2
    - tower_config.yaml.j2
    - launch_awx.yaml.j2
    - supervisor.yaml.j2
    - tower.yaml.j2

- name: Get the Tower pod information.
  k8s_info:
    kind: Pod
    namespace: '{{ meta.namespace }}'
    label_selectors:
      - app=tower
  register: tower_pods
  until: "tower_pods['resources'][0]['status']['phase'] == 'Running'"
  delay: 5
  retries: 60

- name: Set the tower pod name as a variable.
  set_fact:
    tower_pod_name: "{{ tower_pods['resources'][0]['metadata']['name'] }}"

- name: Verify tower_pod_name is populated.
  assert:
    that: tower_pod_name != ''
    fail_msg: "Could not find the tower pod's name."

- name: Check if database is populated (auth_user table exists).
  shell: >-
    kubectl exec -n {{ meta.namespace }} -c {{ meta.name }}-task {{ tower_pod_name }} -- bash -c
    "echo 'from django.db import connection;
    tbl = \"auth_user\" in connection.introspection.table_names();
    exit(0 if tbl else 1)'
    | awx-manage shell"
  ignore_errors: true
  changed_when: false
  register: database_check
  when: k8s_defs_result is not changed

- name: Migrate the database if the K8s resources were updated.  # noqa 305
  shell: >-
    kubectl exec -n {{ meta.namespace }} -c {{ meta.name }}-task {{ tower_pod_name }} -- bash -c
    "awx-manage migrate --noinput"
  register: migrate_result
  when: (k8s_defs_result is changed) or (database_check is defined and database_check.rc != 0)

- include_tasks: initialize.yml

- name: Scale the tower deployment to 0 replicas after migration.
  k8s:
    definition: "{{ lookup('template', 'tower.yaml.j2') | from_yaml_all | list }}"
  vars:
    tower_replicas: "0"
  when: migrate_result and migrate_result.changed

- name: Scale the tower deployment back to 1 replica after migration.
  k8s:
    definition: "{{ lookup('template', 'tower.yaml.j2') | from_yaml_all | list }}"
  vars:
    tower_replicas: "1"
  when: migrate_result and migrate_result.changed