service: Support publishing arbitary ports through sockets

roles/service/meta/argument_specs.yaml

@@ -93,11 +93,44 @@ argument_specs:
         default: []
         elements: str
       service_container_publish_ports:
-        description: "A list of published ports in docker format (<host listen address>:<host port>:<container port>)"
+        description: A list of ports to publish outside the container
         type: list
         required: false
         default: []
-        elements: str
+        elements: dict
+        options:
+          name:
+            description:
+              - Name of the port.
+              - If type is socket, the socket will be created at /run/<service name>-<port name>.sock on the host.
+              - If type is not socket, this is just informative.
+            type: str
+            required: true
+          container_port:
+            description: Container port to publish
+            type: int
+            required: true
+          type:
+            description: Whether to publish as a port or socket
+            type: str
+            required: false
+            default: port
+            choices:
+              - socket
+              - port
+          host_address:
+            description:
+              - IP or hostname to listen on on the host
+              - Ignored if type is socket
+            type: str
+            required: false
+            default: 0.0.0.0
+          host_port:
+            description:
+              - Port to listen on on the host
+              - Required if type is port, ignored otherwise
+            type: int
+            required: false
       service_container_mounts:
         description: List of bind mounts or volumes to be mounted inside the service container(s).
         type: list