Add use_db_compression option for backup database dumps (#2106)

* Add use_db_compression option for backup database dumps

Enable optional pg_dump compression (-Z 9) via use_db_compression
boolean flag. Restore auto-detects compressed (.db.gz) or
uncompressed (.db) backups for backward compatibility.

Authored By: Christian M. Adams <chadams@redhat.com>
Assisted By: Claude

* Add CRD field, CSV descriptor, and restore auto-detection for use_db_compression

Authored By: Christian M. Adams <chadams@redhat.com>
Assisted By: Claude

config/crd/bases/awx.ansible.com_awxbackups.yaml

@@ -88,6 +88,10 @@ spec:
               pg_dump_suffix:
                 description: Additional parameters for the pg_dump command
                 type: string
+              use_db_compression:
+                description: Enable compression for database dumps using pg_dump built-in compression.
+                type: boolean
+                default: true
               postgres_label_selector:
                 description: Label selector used to identify postgres pod for backing up data
                 type: string

config/manifests/bases/awx-operator.clusterserviceversion.yaml

@@ -175,6 +175,12 @@ spec:
         path: additional_labels
         x-descriptors:
         - urn:alm:descriptor:com.tectonic.ui:advanced
+      - description: Enable compression for database dumps using pg_dump built-in compression
+        displayName: Use DB Compression
+        path: use_db_compression
+        x-descriptors:
+        - urn:alm:descriptor:com.tectonic.ui:advanced
+        - urn:alm:descriptor:com.tectonic.ui:booleanSwitch
       - displayName: Node Selector for backup management pod
         path: db_management_pod_node_selector
         x-descriptors:

roles/backup/defaults/main.yml

@@ -42,6 +42,9 @@ backup_resource_requirements:
 # Allow additional parameters to be added to the pg_dump backup command
 pg_dump_suffix: ''
 
+# Enable compression for database dumps (pg_dump -F custom built-in compression)
+use_db_compression: true
+
 # Labels defined on the resource, which should be propagated to child resources
 additional_labels: []
 

roles/backup/tasks/postgres.yml

@@ -121,6 +121,7 @@
       -d {{ awx_postgres_database }}
       -p {{ awx_postgres_port }}
       -F custom
+      {{ use_db_compression | bool | ternary('', '-Z 0') }}
       {{ pg_dump_suffix }}
   no_log: "{{ no_log }}"