container: fix specifying docker_networks

roles/container/tasks/main.yml

@@ -6,13 +6,19 @@
 - name: Docker network
   when: docker_network_mode is not defined or docker_network_mode != 'host' or docker_networks | length > 0
   block:
-    - name: Set networks variable
+    - name: Set networks variable to {{ docker_service_name }}
       set_fact:
         container_networks:
           - name: "{{ docker_service_name }}"
-    - name: Docker network {{ docker_service_name }}
+      when: docker_networks | length == 0
+    - name: Set networks variable to {{ docker_networks }}
+      set_fact:
+        container_networks: "{{ docker_networks }}"
+      when: docker_networks | length > 0
+    - name: Create docker networks
       docker_network:
-        name: "{{ container_networks[0].name }}"
+        name: "{{ item.name }}"
+      loop: "{{ container_networks }}"
 
 - name: Reverse proxy for container
   include_tasks: proxy.yml