Add idempotency for existing local volumes (#56)

plugins/modules/podman_container.py

@@ -1731,16 +1731,23 @@ class PodmanContainerDiff:
 
     def diffparam_volume(self):
         before = self.info['mounts']
+        before_local_vols = []
         if before:
             volumes = []
+            local_vols = []
             for m in before:
                 if m['type'] != 'volume':
                     volumes.append([m['source'], m['destination']])
+                elif m['type'] == 'volume':
+                    local_vols.append([m['name'], m['destination']])
             before = [":".join(v) for v in volumes]
+            before_local_vols = [":".join(v) for v in local_vols]
         if self.params['volume'] is not None:
             after = [":".join(v.split(":")[:2]) for v in self.params['volume']]
         else:
             after = []
+        if before_local_vols:
+            after = list(set(after).difference(before_local_vols))
         before, after = sorted(list(set(before))), sorted(list(set(after)))
         return self._diff_update_and_compare('volume', before, after)
 

tests/integration/targets/podman_container/files/Dockerfile

@@ -18,7 +18,7 @@ RUN chmod a+rwx /start
 EXPOSE 80
 EXPOSE 8080/tcp
 
-VOLUME ["/data"]
+VOLUME ["/data", "/data2"]
 USER user
 WORKDIR /work
 STOPSIGNAL 9

tests/integration/targets/podman_container/tasks/idem_volumes.yml

@@ -117,6 +117,66 @@
   assert:
     that: test9 is not changed
 
+- name: Create volumes
+  shell: |
+    podman volume inspect local_volume1 || podman volume create local_volume1
+    podman volume inspect local_volume2 || podman volume create local_volume2
+
+- containers.podman.podman_container:
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: present
+    command: 1h
+    volumes:
+      - "/opt:/anotherdir"
+      - "local_volume1:/data"
+  register: test10
+
+- name: check test10
+  assert:
+    that: test10 is changed
+
+- containers.podman.podman_container:
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: present
+    command: 1h
+    volumes:
+      - "/opt:/anotherdir"
+      - "local_volume1:/data"
+  register: test11
+
+- name: check test11
+  assert:
+    that: test11 is not changed
+
+- containers.podman.podman_container:
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: present
+    command: 1h
+    volumes:
+      - "/opt:/anotherdir"
+      - "local_volume2:/data"
+  register: test12
+
+- name: check test12
+  assert:
+    that: test12 is changed
+
+- containers.podman.podman_container:
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: present
+    command: 1h
+    volumes:
+      - "/opt:/anotherdir"
+  register: test13
+
+- name: check test13
+  assert:
+    that: test13 is not changed
+
 - containers.podman.podman_container:
     name: idempotency1
     state: absent
@@ -132,11 +192,11 @@
     name: idempotency1
     state: present
     command: sleep 1h
-  register: test10
+  register: test14
 
-- name: check test10
+- name: check test14
   assert:
-    that: test10 is not changed
+    that: test14 is not changed
 
 - containers.podman.podman_container:
     image: alpine
@@ -145,30 +205,30 @@
     volumes:
       - /opt:/data
     command: sleep 1h
-  register: test11
+  register: test15
 
-- name: check test11
+- name: check test15
   assert:
-    that: test11 is changed
+    that: test15 is changed
 
 - containers.podman.podman_container:
     image: alpine
     name: idempotency1
     state: present
     command: sleep 1h
-  register: test12
+  register: test16
 
-- name: check test12
+- name: check test16
   assert:
-    that: test12 is changed
+    that: test16 is changed
 
 - containers.podman.podman_container:
     image: alpine
     name: idempotency1
     state: present
     command: sleep 1h
-  register: test13
+  register: test17
 
-- name: check test13
+- name: check test17
   assert:
-    that: test13 is not changed
+    that: test17 is not changed