Change default value for postgres_data_path (#1766)

* Change default value for postgres_data_path

/var/lib/postgresql/data/pgdata
to
/var/lib/pgsql/data/pgdata

postgres 15 uses a different location for
postgres data directory.

Fixes issue were database was not being written
to the mounted in volume, and if the postgres
container restarted, data would be lost.

Signed-off-by: Seth Foster <fosterbseth@gmail.com>
---------

Signed-off-by: Seth Foster <fosterbseth@gmail.com>
Co-authored-by: Hao Liu <44379968+TheRealHaoLiu@users.noreply.github.com>

roles/installer/defaults/main.yml

@@ -401,7 +401,7 @@ postgres_init_container_resource_requirements:
     memory: 64Mi
 # Assign a preexisting priority class to the postgres pod
 postgres_priority_class: ''
-postgres_data_path: '/var/lib/postgresql/data/pgdata'
+postgres_data_path: '/var/lib/pgsql/data/pgdata'
 
 # Persistence to the AWX project data folder
 # Whether or not the /var/lib/projects directory will be persistent

roles/installer/tasks/database_configuration.yml

@@ -156,17 +156,17 @@
 
 - name: Check if postgres pod is running an older version
   block:
-    - name: Set path to PG_VERSION file for given container image
-      set_fact:
-        path_to_pg_version: '{{ postgres_data_path }}/PG_VERSION'
-
     - name: Get old PostgreSQL version
       k8s_exec:
         namespace: "{{ ansible_operator_meta.namespace }}"
         pod: "{{ old_postgres_pod['metadata']['name'] }}"
         command: |
           bash -c """
-          cat {{ path_to_pg_version }}
+          if [ -f "{{ postgres_data_path }}/PG_VERSION" ]; then
+            cat "{{ postgres_data_path }}/PG_VERSION"
+          elif [ -f '/var/lib/postgresql/data/pgdata/PG_VERSION' ]; then
+            cat '/var/lib/postgresql/data/pgdata/PG_VERSION'
+          fi
           """
       register: _old_pg_version