feat(docker): Added cadvisor on all hosts, added docker metric exporter, added docker compose restart as handler, moved repetetive directory/permission creation into loops, moved repetetive values into variables, cleanup compose template for better empty lines

Signed-off-by: Tuan-Dat Tran <tuan-dat.tran@tudattr.dev>

roles/docker_host/tasks/directory_setup.yml

@@ -1,106 +1,40 @@
 ---
-- name: Create /media/docker directory
+- name: Create directories
   ansible.builtin.file:
-    path: /media/docker
+    path: "{{ item }}"
     state: directory
     mode: "0755"
+  loop:
+    - /media/docker
+    - /media/series
+    - /media/movies
+    - /media/songs
+    - "{{ docker.directories.opt }}"
+    - "{{ docker.directories.compose }}"
+    - /opt/local
   become: true
 
-- name: Create /media/series directory
+- name: Set ownership to {{ user }}
   ansible.builtin.file:
-    path: /media/series
-    state: directory
-    mode: "0755"
+    path: "{{ item }}"
+    owner: "{{ user }}"
+    group: "{{ user }}"
+  loop:
+    - "{{ docker.directories.opt }}"
+    - /opt/local
+    - /media
   become: true
 
-- name: Create /media/movies directory
-  ansible.builtin.file:
-    path: /media/movies
-    state: directory
-    mode: "0755"
-  become: true
-
-- name: Create /media/songs directory
-  ansible.builtin.file:
-    path: /media/songs
-    state: directory
-    mode: "0755"
-  become: true
-
-- name: Create /opt/docker directory
-  ansible.builtin.file:
-    path: /opt/docker
-    state: directory
-    mode: "0755"
-  become: true
-
-- name: Create /opt/docker/compose directory
-  ansible.builtin.file:
-    path: /opt/docker/compose
-    state: directory
-    mode: "0755"
-  become: true
-
-- name: Create /opt/local directory
-  ansible.builtin.file:
-    path: /opt/local
-    state: directory
-    mode: "0755"
-  become: true
-
-- name: Set ownership of /opt/local to tudattr
-  ansible.builtin.file:
-    path: /opt/local
-    owner: tudattr
-    group: tudattr
-  become: true
-
-- name: Set ownership of /opt/docker to tudattr
-  ansible.builtin.file:
-    path: /opt/docker
-    owner: tudattr
-    group: tudattr
-  become: true
-
-- name: Set ownership of /media directories to tudattr
-  ansible.builtin.file:
-    path: /media/
-    owner: tudattr
-    group: tudattr
-  become: true
-
-- name: Ensure /media/docker is mounted via NFS
+- name: Ensure NFS mounts
   ansible.posix.mount:
-    path: /media/docker
-    src: 192.168.20.12:/media/docker
-    fstype: nfs
-    opts: defaults,nolock
-    state: mounted
-  become: true
-
-- name: Ensure /media/series is mounted via NFS
-  ansible.posix.mount:
-    path: /media/series
-    src: 192.168.20.12:/media/series
-    fstype: nfs
-    opts: defaults,nolock
-    state: mounted
-  become: true
-
-- name: Ensure /media/movies is mounted via NFS
-  ansible.posix.mount:
-    path: /media/movies
-    src: 192.168.20.12:/media/movies
-    fstype: nfs
-    opts: defaults,nolock
-    state: mounted
-  become: true
-
-- name: Ensure /media/songs is mounted via NFS
-  ansible.posix.mount:
-    path: /media/songs
-    src: 192.168.20.12:/media/songs
+    path: "{{ item }}"
+    src: "192.168.20.12:{{ item }}"
     fstype: nfs
     opts: defaults,nolock
     state: mounted
+  loop:
+    - /media/docker
+    - /media/series
+    - /media/movies
+    - /media/songs
   become: true