Refactor tasks for compose.yml and add tasks for pihole, homeassistant, and prometheus

Signed-off-by: TuDatTr <tuan-dat.tran@tudattr.dev>

README.md

@@ -14,6 +14,61 @@ but first of all we need to create the buckets and provide ansible with the need
   - `vault_mysql_user_password: <YOURPASSWORD>` (arbitrary password, used internally)
   - `vault_ddns_tudattrdev_password: <YOURPASSWORD>` (password needed for ddns, refer to [here](https://www.namecheap.com/support/knowledgebase/article.aspx/595/11/how-do-i-enable-dynamic-dns-for-a-domain/))
   - `vault_ddns_borgland_password: <YOURPASSWORD>` (password needed for ddns, refer to [here](https://www.namecheap.com/support/knowledgebase/article.aspx/595/11/how-do-i-enable-dynamic-dns-for-a-domain/))
+  
+## Docker
+To add new docker containers to the docker role you need to add the following and replace `service` with the name of your service:
+
+- Add relevent vars to `group_vars/all/vars.yaml`:
+```yaml
+service_port: "19999" # Exposed port
+service_config: "{{ docker_dir }}/service/" # config folder or your dir
+service_data: "{{ docker_data_dir }}/service/" # data folder or your dir (only works on aya01)
+```
+- Create necessary directories for service in the docker role `roles/docker/tasks/service.yaml`
+```yaml
+- name: Create service dirs
+  file:
+    path: "{{ item }}"
+    owner: 1000
+    group: 1000
+    mode: '777'
+    state: directory
+  loop:
+    - "{{ service_config }}"
+    - "{{ service_data }}"
+
+# optional:
+# - name: Place service config
+#   template:
+#     owner: 1000
+#     mode: '660'
+#     src: "templates/hostname/service/service.yml"
+#     dest: "{{ prm_config }}/service.yml"
+```
+
+- Includ new tasks to `roles/docker/tasks/hostname_compose.yaml`:
+```yaml
+- include_tasks: service.yaml
+  tags:
+    - service
+```
+
+- Add new service to compose `roles/docker/templates/hostname/compose.yaml`
+```yaml
+  service:
+    image: service/service
+    container_name: service
+    hostname: service
+    networks:
+      - net
+    ports:
+      - "{{service_port}}:19999"
+    restart: unless-stopped
+    volumes:
+      - "{{service_config}}:/etc/service"
+      - "{{service_lib}}:/var/lib/service"
+      - "{{service_cache}}:/var/cache/service"
+```
 
 ## Server
 - Install Debian (debian-11.5.0-amd64-netinst.iso) on remote system