container: reorganize volume directory creation

roles/container/tasks/init.yml

@@ -8,12 +8,25 @@
     final_docker_volumes: "{{ docker_volumes }}"
     container_image: ''
 
+- name: Set assistive variables
+  set_fact:
+    template_mounts_needed: "{{ docker_mounts | selectattr('template', 'defined') | list | length > 0 }}"
+    volumes_needed: "{{ docker_mounts | selectattr('name', 'defined') | list | length > 0 }}"
+    dockerfile_needed: "{{ dockerfile is defined and dockerfile | length > 0 }}"
+- name: Set more assistive variables
+  set_fact:
+    bind_volumes_needed: "{{ volumes_needed and docker_volume_type == 'bind' }}"
+    named_volumes_needed: "{{ volumes_needed and docker_volume_type == 'named' }}"
+- name: Set even more assistive variables
+  set_fact:
+    create_opt_directory: "{{ dockerfile_needed or docker_host_user or bind_volumes_needed or template_mounts_needed }}"
+    create_mounts_directory: "{{ bind_volumes_needed or template_mounts_needed }}"
+
 - name: Set docker service full name
   set_fact:
     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!"