container: add proxy target protocol and network mode vars to argspec

roles/container/meta/argument_specs.yml

@@ -96,6 +96,14 @@ argument_specs:
         description: "The port for http listener inside the container. Will be mapped to the host port defined in ports. Required if reverse_proxy_type is not none."
         type: int
         required: false
+      docker_proxy_target_protocol:
+        description: "Protocol to use for proxy connection"
+        type: str
+        required: false
+        choices:
+          - http
+          - https
+        default: http
       ports:
         description: "ports[docker_service]['http'] or ports[docker_service]['https'] defines the port on which the container will listen on for reverse proxy connections. Required if reverse_proxy_type is caddy."
         type: dict
@@ -117,6 +125,10 @@ argument_specs:
         type: list
         required: false
         elements: str
+      docker_network_mode:
+        description: "Docker container network mode"
+        type: str
+        required: false
       timezone:
         description: "Timezone set in the TZ env var"
         type: str