support setting docker network mode for container

roles/container/tasks/main.yml

@@ -7,7 +7,7 @@
 - name: Set published ports variable
   set_fact: 
     container_published_ports: ["127.0.0.1:{{ ports[docker_service].http }}:{{ docker_image_http_port }}"]
-  when: reverse_proxy_type != 'traefik'
+  when: reverse_proxy_type != 'traefik' and docker_network_mode is defined and docker_network_mode != 'host'
 
 - name: Include traefik vars
   include_vars: traefik.yml
@@ -53,6 +53,7 @@
     env: "{{ docker_env | combine(docker_additional_env) }}"
     entrypoint: "{{ docker_entrypoint | default(omit) }}"
     restart_policy: always
+    network_mode: "{{ docker_network_mode | default(omit) }}"
     networks:
       - name: "{{ docker_service }}"
   register: container_out