Big code and variable refactoring

roles/docker-compose/defaults/main.yml

@@ -0,0 +1 @@
+docker_compose_instance_directory:  "{{ path_docker_compose_instances + docker_compose_project_name + '/' }}"

roles/docker-compose/tasks/main.yml

@@ -0,0 +1,24 @@
+- name: load docker compose dependencies
+  include_role:
+    name: docker-compose
+
+- name: "remove {{ docker_compose_instance_directory }} and all its contents"
+  file:
+    path: "{{ docker_compose_instance_directory }}"
+    state: absent
+  when: mode_reset | bool
+
+- name: "create {{docker_compose_instance_directory}}"
+  file:
+    path: "{{docker_compose_instance_directory}}"
+    state: directory
+    mode: 0755
+
+- name: flush docker service
+  meta: flush_handlers
+  when: run_once_docker_compose is not defined
+
+- name: run the docker tasks once
+  set_fact:
+    run_once_docker_compose: true
+  when: run_once_docker_compose is not defined