Improve idempotency for devices mount of rootless podman (#487)

Signed-off-by: Sagi Shnaidman <sshnaidm@redhat.com>

plugins/module_utils/podman/podman_container_lib.py

@@ -855,7 +855,16 @@ class PodmanContainerDiff:
     def diffparam_device(self):
         before = [":".join([i['pathonhost'], i['pathincontainer']])
                   for i in self.info['hostconfig']['devices']]
+        if not before and 'createcommand' in self.info['config']:
+            cr_com = self.info['config']['createcommand']
+            if '--device' in cr_com:
+                before = [cr_com[k + 1].lower()
+                          for k, i in enumerate(cr_com) if i == '--device']
+        before = [":".join((i, i))
+                  if len(i.split(":")) == 1 else i for i in before]
         after = [":".join(i.split(":")[:2]) for i in self.params['device']]
+        after = [":".join((i, i))
+                 if len(i.split(":")) == 1 else i for i in after]
         before, after = sorted(list(set(before))), sorted(list(set(after)))
         return self._diff_update_and_compare('devices', before, after)
 

tests/integration/targets/podman_container_idempotency/tasks/idem_all.yml

@@ -180,6 +180,68 @@
       tag: sometag
     command: 1h
 
+- name: Run container with mounted /dev/fuse
+  containers.podman.podman_container:
+    executable: "{{ test_executable | default('podman') }}"
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: started
+    command: 1h
+    device:
+      - /dev/fuse
+  register: test15
+
+- name: Run container with mounted /dev/fuse again
+  containers.podman.podman_container:
+    executable: "{{ test_executable | default('podman') }}"
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: started
+    command: 1h
+    device:
+      - /dev/fuse
+  register: test16
+
+- name: Run container with mounted /dev/fuse:/dev/fuse
+  containers.podman.podman_container:
+    executable: "{{ test_executable | default('podman') }}"
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: started
+    command: 1h
+    device:
+      - /dev/fuse:/dev/fuse
+  register: test17
+
+- name: Run container with mounted /dev/fuse third time
+  containers.podman.podman_container:
+    executable: "{{ test_executable | default('podman') }}"
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: started
+    command: 1h
+    device:
+      - /dev/fuse
+  register: test18
+
+- name: Run container without mounted device
+  containers.podman.podman_container:
+    executable: "{{ test_executable | default('podman') }}"
+    image: "{{ idem_image }}"
+    name: idempotency
+    state: started
+    command: 1h
+  register: test19
+
+- name: Check info with mounted devices
+  assert:
+    that:
+      - test15 is changed
+      - test16 is not changed
+      - test17 is not changed
+      - test18 is not changed
+      - test19 is changed
+
 - name: Remove test container
   containers.podman.podman_container:
     executable: "{{ test_executable | default('podman') }}"