container: fix legacy docker_volumes compatibility, add missing arguments to argument specs

roles/container/tasks/init.yml

@@ -4,6 +4,7 @@
   set_fact:
     docker_volume_definition: []
     container_published_ports: []
+    docker_volumes_new: []
     final_docker_volumes: "{{ docker_volumes }}"
 
 - name: Set docker service full name
@@ -11,16 +12,18 @@
     docker_service_name: "{{ docker_service }}_{{ docker_service_suffix }}"
   when: docker_service_suffix is defined
 
+
+- name: Warn about docker_volumes legacy format
+  debug:
+    msg: "docker_volumes is deprecated. This support may be removed after december 2022. Use docker_mounts instead!"
+  when: docker_volumes | length > 0
+
 - name: Convert docker_volumes from legacy format
   when: docker_volumes | length > 0 and docker_volumes[0] is not mapping
   block:
-    - name: Warn about docker_volumes legacy format
-      debug:
-        msg: "docker_volumes is set in a legacy, deprecated format. This support may be removed after december 2022."
-
     - name: Add legacy docker volumes to docker_volumes_new using the new format
       set_fact:
-        docker_volumes_new: "{{ docker_volumes_new | default([]) + [{'name': item.split(':')[0], 'path': item.split(':')[1]}] }}"
+        docker_volumes_new: "{{ docker_volumes_new | default([]) + [{'name': item.split(':')[0] | regex_replace('^' + docker_service_name + '_', ''), 'path': item.split(':')[1]}] }}"
       when: "'/' not in item.split(':')[0]"
       loop: "{{ docker_volumes }}"
     - name: Add legacy docker src bind mounts to docker_volumes_new using the new format
@@ -31,3 +34,8 @@
     - name: Set final_docker_volumes variable
       set_fact:
         final_docker_volumes: "{{ docker_volumes_new }}"
+
+- name: Convert final_docker_volumes to docker_mounts
+  set_fact:
+    docker_mounts: "{{ final_docker_volumes }}"
+  when: docker_mounts | length == 0 and final_docker_volumes | length > 0