generate_systemd: implement --wants, --after and --requires (containe…

…rsGH-431)

Signed-off-by: dada513 <[email protected]>

plugins/module_utils/podman/common.py

@@ -54,6 +54,15 @@ def generate_systemd(module, module_params, name):
         command.extend(['--pod-prefix=%s' % sysconf['pod_prefix']])
     if sysconf.get('separator') is not None:
         command.extend(['--separator=%s' % sysconf['separator']])
+    if sysconf.get('after') is not None:
+        for after in sysconf['after']:
+            command.extend(['--after=%s' % after])
+    if sysconf.get('wants') is not None:
+        for want in sysconf['wants']:
+            command.extend(['--wants=%s' % want])
+    if sysconf.get('requires') is not None:
+        for require in sysconf['requires']:
+            command.extend(['--requires=%s' % require])
     if module.params['debug'] or module_params['debug']:
         module.log("PODMAN-CONTAINER-DEBUG: systemd command: %s" %
                    " ".join(command))

plugins/modules/podman_container.py

@@ -358,6 +358,21 @@
             Refer to podman-generate-systemd(1) for more information.
         type: bool
         default: false
+      after:
+        type: list
+        required: false
+        description:
+          - Add the systemd unit after (After=) option, that ordering dependencies between the list of dependencies and this service. 
+      wants:
+        type: list
+        required: false
+        description:
+          - Add the systemd unit wants (Wants=) option, that this service is (weak) dependent on.
+      requires:
+        type: list
+        required: false
+        description:
+          - Set the systemd unit requires (Requires=) option. Similar to wants, but declares a stronger requirement dependency.
   gidmap:
     description:
       - Run the container in a new user namespace using the supplied mapping.

plugins/modules/podman_pod.py

@@ -163,6 +163,21 @@
             Refer to podman-generate-systemd(1) for more information.
         type: bool
         default: false
+      after:
+        type: list
+        required: false
+        description:
+          - Add the systemd unit after (After=) option, that ordering dependencies between the list of dependencies and this service. 
+      wants:
+        type: list
+        required: false
+        description:
+          - Add the systemd unit wants (Wants=) option, that this service is (weak) dependent on.
+      requires:
+        type: list
+        required: false
+        description:
+          - Set the systemd unit requires (Requires=) option. Similar to wants, but declares a stronger requirement dependency.
   gidmap:
     description:
     - GID map for the user namespace. Using this flag will run the container with