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/export.yml

@@ -0,0 +1,11 @@
+---
+- name: Copy exporter config to host
+  ansible.builtin.copy:
+    src: files/daemon.json
+    dest: /etc/docker/daemon.json
+    owner: "{{ root }}"
+    group: "{{ root }}"
+    mode: "0644"
+  notify:
+    - Restart docker
+  become: true