service: Split container network namespaces

roles/service/vars/main/additional.yaml

@@ -11,6 +11,19 @@ _service_additional_containers: >-
       | map('combine')
   }}
 
+_service_additional_container_networks: >-
+  {{
+    [service_name]
+    + [_service_additional_container.name]
+    + service_container_additional_networks
+    + (
+      _service_additional_container_publish_socket_ports
+      | map(attribute='name')
+      | map('regex_replace', '^', service_name ~ '-')
+      | map('regex_replace', '$', '-socat')
+    )
+  }}
+
 _service_additional_container_ip: >-
   {{
     service_container_ip |