Update secrets description and add test with secret opts (#363)

* Update secrets description and add test with secret opts

* Make pep happy

plugins/modules/podman_container.py

@@ -674,7 +674,9 @@ options:
     type: bool
   secrets:
     description:
-      - Add the named secrets into the container at /run/secrets.
+      - Add the named secrets into the container.
+        The format is C(secret[,opt=opt...]), see
+        L(documentation,https://docs.podman.io/en/latest/markdown/podman-run.1.html#secret-secret-opt-opt) for more details.
     type: list
     elements: str
   security_opt:

tests/integration/targets/podman_secret/tasks/main.yml

@@ -42,15 +42,27 @@
         rm: true
       register: container
 
-    - name: Output secret data
-      debug:
-        msg: '{{ container.stdout }}'
-
     - name: Check secret data
       assert:
         that:
           - container.stdout == "super secret content"
 
+    - name: Create container that uses secret with options
+      containers.podman.podman_container:
+        name: showmysecret
+        image: alpine:3.7
+        secrets:
+          - mysecret,type=env,target=SECRET
+        command: ['/bin/sh', '-c', 'echo $SECRET']
+        detach: false
+        rm: true
+      register: container
+
+    - name: Check secret data
+      assert:
+        that:
+          - container.stdout == "super secret content\n"
+
     - name: Remove secret
       containers.podman.podman_secret:
         state: absent