fix: fix tmpfs_size and tmpfs_mode not being set (#580)

* fix: fix tmpfs_size and tmpfs_mode not being set

* fix: wrong file

* fix: add changelog fragment

* fix: update changelog fragment to match formatting

Co-authored-by: Felix Fontein <felix@fontein.de>

---------

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/module_utils/module_container/docker_api.py

@@ -994,8 +994,8 @@ def _set_values_mounts(module, data, api_version, options, values):
                     tmpfs_opts['Mode'] = mount.get('tmpfs_mode')
                 if mount.get('tmpfs_size'):
                     tmpfs_opts['SizeBytes'] = mount.get('tmpfs_size')
-                if mount.get('tmpfs_opts'):
-                    mount_res['TmpfsOptions'] = mount.get('tmpfs_opts')
+                if tmpfs_opts:
+                    mount_res['TmpfsOptions'] = tmpfs_opts
             mounts.append(mount_res)
         data['HostConfig']['Mounts'] = mounts
     if 'volumes' in values:

plugins/modules/docker_container.py

@@ -1165,6 +1165,17 @@ EXAMPLES = '''
       # The "NONE" check needs to be specified
       test: ["NONE"]
 
+- name: Create a tmpfs with a size and mode
+  community.docker.docker_container:
+    name: tmpfs test
+    image: ubuntu:22.04
+    state: started
+    mounts:
+      - type: tmpfs
+        target: /cache
+        tmpfs_mode: "1700" # only readable to the owner
+        tmpfs_size: "16G"
+
 - name: Start container with block device read limit
   community.docker.docker_container:
     name: test