Refactored native-

roles/docker/Readme.md

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+# role docker
+
+## maintanance
+
+### list unused volumes
+```bash 
+    docker volume ls -q -f "dangling=true"
+```
+
+### remove all unused volumes
+```bash 
+    docker volume rm $(docker volume ls -q -f "dangling=true")
+```
+
+## performance
+- https://forums.docker.com/t/mysql-slow-performance-in-docker/37179/21
+
+## see
+- https://stackoverflow.com/questions/37599128/docker-how-do-you-disable-auto-restart-on-a-container

roles/docker/handlers/main.yml

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+---
+- name: docker restart
+  service: name=docker.service state=restarted enabled=yes

roles/docker/meta/main.yml

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+dependencies:
+  - docker-volume-backup
+  - user-administrator
+  - docker-health-check
+  - docker-compose-restart-unhealthy

roles/docker/tasks/main.yml

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+---
+- name: docker & docker compose install
+  pacman:
+    name: ['docker','docker-compose']
+    state: present
+  notify: docker restart
+
+- name: "create {{path_docker_compose_files}}"
+  file:
+    path: "{{path_docker_compose_files}}"
+    state: directory
+    mode: 0700
+    owner: administrator
+    group: administrator
+
+- name: "create {{path_docker_volumes}}"
+  file:
+    path: "{{path_docker_volumes}}"
+    state: directory
+    mode: 0700
+    owner: administrator
+    group: administrator
+
+- name: flush docker service
+  meta: flush_handlers