feat: implement extra_settings_files (#1836)

* feat: implement extra_settings_files
* fix: reduce duplicated code blocks by templates
* docs: update docs for extra settings
* docs: simplify the commands
* docs: add notes for duplicated keys in setting files

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

@@ -1904,6 +1904,28 @@ spec:
                       x-kubernetes-preserve-unknown-fields: true
                   type: object
                 type: array
+              extra_settings_files:
+                description: Extra ConfigMaps or Secrets of settings files to specify for AWX
+                properties:
+                  configmaps:
+                    items:
+                      properties:
+                        name:
+                          type: string
+                        key:
+                          type: string
+                      type: object
+                    type: array
+                  secrets:
+                    items:
+                      properties:
+                        name:
+                          type: string
+                        key:
+                          type: string
+                      type: object
+                    type: array
+                type: object
               no_log:
                 description: Configure no_log for no_log tasks
                 type: boolean

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

@@ -966,6 +966,11 @@ spec:
         x-descriptors:
         - urn:alm:descriptor:com.tectonic.ui:advanced
         - urn:alm:descriptor:com.tectonic.ui:hidden
+      - displayName: Extra Settings Files
+        path: extra_settings_files
+        x-descriptors:
+        - urn:alm:descriptor:com.tectonic.ui:advanced
+        - urn:alm:descriptor:com.tectonic.ui:hidden
       - displayName: No Log Configuration
         path: no_log
         x-descriptors: