backup role use k8s_cp module to write files (#1111)

roles/backup/tasks/awx-cro.yml

@@ -28,8 +28,8 @@
       previous_deployment_name: "{{ this_awx['resources'][0]['metadata']['name'] }}"
 
 - name: Write awx object to pvc
-  k8s_exec:
+  k8s_cp:
     namespace: "{{ backup_pvc_namespace }}"
     pod: "{{ ansible_operator_meta.name }}-db-management"
-    command: >-
-      bash -c 'echo "$0" > {{ backup_dir  }}/awx_object' {{ awx_spec | to_yaml | quote  }}
+    remote_path: "{{ backup_dir  }}/awx_object"
+    content: "{{ awx_spec | to_yaml }}"

roles/backup/tasks/secrets.yml

@@ -42,9 +42,9 @@
   no_log: "{{ no_log }}"
 
 - name: Write postgres configuration to pvc
-  k8s_exec:
+  k8s_cp:
     namespace: "{{ backup_pvc_namespace }}"
     pod: "{{ ansible_operator_meta.name }}-db-management"
-    command: >-
-      bash -c "echo '{{ secrets | to_yaml }}' > {{ backup_dir }}/secrets.yml"
+    remote_path: "{{ backup_dir }}/secrets.yml"
+    content: "{{ secrets | to_yaml }}"
   no_log: "{{ no_log }}"