Adapted variables for template

roles/docker-akaunting/tasks/main.yml

@@ -1,19 +1,18 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: Create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "include tasks update-repository-with-docker-compose.yml"
   include_tasks: update-repository-with-docker-compose.yml
 
-- name: configure db.env
-  template: src=db.env.j2 dest={{docker_compose_instance_directory}}/env/db.env
-  notify: docker compose project setup
-
 - name: configure run.env
   template: src=run.env.j2 dest={{docker_compose_instance_directory}}/env/run.env
   notify: docker compose project setup

roles/docker-akaunting/templates/db.env.j2

@@ -1,9 +0,0 @@
-# These could be changed
-MYSQL_DATABASE={{database_databasename}}
-MYSQL_USER={{database_username}}
-
-# This should definitely be changed to something long and random
-MYSQL_PASSWORD={{database_password}}
-
-# You should probably leave this
-MYSQL_ROOT_PASSWORD={{database_password}}

roles/docker-akaunting/templates/docker-compose.yml.j2

@@ -1,6 +1,9 @@
 version: '3.7'
 
 services:
+
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
+
   application:
     image: docker.io/akaunting/akaunting:{{version_akaunting}}
     build:
@@ -14,15 +17,10 @@ services:
       - env/run.env
     environment:
       - AKAUNTING_SETUP
-{% if not enable_central_database %}
-    depends_on:
-      - database
+{% include 'templates/docker-container-networks.yml.j2' %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
 
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
-
-volumes:
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-akaunting/templates/run.env.j2

@@ -3,12 +3,12 @@ APP_URL=https://{{domain}}
 LOCALE=en-US
 
 # Don't change this unless you rename your database container or use rootless podman, in case of using rootless podman you should set it to 127.0.0.1 (NOT localhost)
-DB_HOST=akaunting-db
+DB_HOST={{database_host}}
 
 # Change these to match env/db.env
-DB_DATABASE=akaunting
-DB_USERNAME=admin
-DB_PASSWORD={{akaunting_database_password}}
+DB_DATABASE={{database_databasename}}
+DB_USERNAME={{database_username}}
+DB_PASSWORD={{database_password}}
 
 # You should change this to a random string of three numbers or letters followed by an underscore
 DB_PREFIX=asd_

roles/docker-akaunting/vars/main.yml

@@ -1,9 +1,6 @@
 docker_compose_project_name:        "akaunting"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
 docker_compose_file_path:           "{{docker_compose_instance_directory}}docker-compose.yml"
 docker_compose_backup_path:         "/tmp/{{docker_compose_project_name}}-docker-compose-backup.yml"
-database_host:                      "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:                  "admin"
+database_type:                      "mariadb"
 database_password:                  "{{akaunting_database_password}}"
 repository_address:                 "https://github.com/akaunting/docker.git"

roles/docker-attendize/tasks/main.yml

@@ -1,4 +1,12 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: receive {{ mail_interface_domain }} certificate
   command: certbot certonly --agree-tos --email {{ administrator_email }} --non-interactive --webroot -w /var/lib/letsencrypt/ -d {{ mail_interface_domain }}
 
@@ -11,10 +19,5 @@
     dest: "{{nginx_servers_directory}}{{domain}}.conf"
   notify: restart nginx
 
-- name: Create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "include tasks update-repository-with-docker-compose.yml"
   include_tasks: update-repository-with-docker-compose.yml

roles/docker-attendize/templates/docker-compose.yml.j2

@@ -4,47 +4,39 @@ services:
     image: attendize_web:latest
     ports:
     - "{{http_port}}:80"
-    #- "8081:443"
     volumes:
       - .:/usr/share/nginx/html
       - .:/var/www
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - maildev
-      - redis
-      - worker
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      maildev:
+      redis:
+      worker:
     env_file:
       - ./.env
+{% include 'templates/docker-container-networks.yml.j2' %}
+
   worker:
     image: attendize_worker:latest
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - maildev
-      - redis
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      maildev:
+      redis:
+{% include 'templates/docker-container-networks.yml.j2' %}
     volumes:
       - .:/usr/share/nginx/html
       - .:/var/www
 
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
+
   maildev:
     image: maildev/maildev
     ports:
       - "{{ mail_interface_http_port }}:1080"
+{% include 'templates/docker-container-networks.yml.j2' %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
       
-{% include 'templates/docker-redis-service.yml.j2' %}
+{% include 'templates/docker-service-redis.yml.j2' %}
 
-{% if not enable_central_database %}
-    depends_on:
-      - database
-
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
-
-volumes:
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   redis:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-attendize/vars/main.yml

@@ -1,11 +1,8 @@
 ---
 docker_compose_project_name:        "attendize"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
 docker_compose_file_path:           "{{docker_compose_instance_directory}}docker-compose.yml"
 docker_compose_backup_path:         "/tmp/{{docker_compose_project_name}}-docker-compose-backup.yml"
 mail_interface_domain:              "mail.{{domain}}"
-database_host:                      "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:                  "{{docker_compose_project_name}}"
+database_type:                      "mariadb"
 database_password:                  "{{attendize_database_password}}"
 repository_address:                 "https://github.com/Attendize/Attendize.git"

roles/docker-baserow/tasks/main.yml

@@ -1,4 +1,12 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 

roles/docker-baserow/templates/docker-compose.yml.j2

@@ -12,5 +12,15 @@ services:
       - data:/baserow/data
     ports:
       - "{{http_port}}:80"
-volumes:
+{% include 'templates/docker-container-networks.yml.j2' %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+
+{% include 'templates/docker-service-redis.yml.j2' %}
+
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
+
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
+  redis:
+
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-baserow/templates/env.j2

@@ -8,3 +8,13 @@ EMAIL_SMTP_PORT={{ system_email_smtp_port }}
 EMAIL_SMTP_USER={{ system_email_username }}
 EMAIL_SMTP_PASSWORD={{ system_email_password }}
 EMAIL_SMTP_USE_TLS={{ system_email_tls | upper }}
+
+DATABASE_USER={{ database_username }}
+DATABASE_NAME={{ database_databasename }}
+DATABASE_HOST={{ database_host }}
+DATABASE_PORT=5432
+DATABASE_PASSWORD={{ database_password }}
+
+REDIS_HOST=redis
+REDIS_PORT=6379
+REDIS_PASSWORD=

roles/docker-baserow/vars/main.yml

@@ -1,2 +1,4 @@
 docker_compose_project_name:        "baserow"
-docker_compose_instance_directory: "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
+database_password:                  "{{ baserow_database_password }}"
+database_version:                   "{{ baserow_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-discourse/tasks/main.yml

@@ -1,4 +1,12 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
   loop: "{{ domains }}"

roles/docker-discourse/templates/app.yml.j2

@@ -63,13 +63,21 @@ env:
   ## TODO: The SMTP mail server used to validate new accounts and send notifications
   # SMTP ADDRESS, username, and password are required
   # WARNING the char '#' in SMTP password can cause problems!
-  DISCOURSE_SMTP_ADDRESS:           {{system_email_host}}
-  DISCOURSE_SMTP_PORT:              {{system_email_smtp_port}}
-  DISCOURSE_SMTP_USER_NAME:         {{system_email}}
-  DISCOURSE_SMTP_PASSWORD:          {{system_email_password}}
+  DISCOURSE_SMTP_ADDRESS:           {{ system_email_host }}
+  DISCOURSE_SMTP_PORT:              {{ system_email_smtp_port }}
+  DISCOURSE_SMTP_USER_NAME:         {{ system_email }}
+  DISCOURSE_SMTP_PASSWORD:          {{ system_email_password }}
   DISCOURSE_SMTP_ENABLE_START_TLS:  {{ system_email_start_tls | upper }}
-  DISCOURSE_SMTP_DOMAIN:            {{system_email_domain}}
-  DISCOURSE_NOTIFICATION_EMAIL:     {{system_email}}
+  DISCOURSE_SMTP_DOMAIN:            {{ system_email_domain }}
+  DISCOURSE_NOTIFICATION_EMAIL:     {{ system_email }}
+
+{% if enable_central_database %}
+  # Database Configuration
+  DISCOURSE_DB_USERNAME: {{ database_username }}
+  DISCOURSE_DB_PASSWORD: {{ database_password }}
+  DISCOURSE_DB_HOST:     {{ database_host }}
+  DISCOURSE_DB_NAME:     {{ database_databasename }}
+{% if enable_central_database %}
 
   ## If you added the Lets Encrypt template, uncomment below to get a free SSL certificate
   #LETSENCRYPT_ACCOUNT_EMAIL: administrator@veen.world
@@ -85,7 +93,7 @@ env:
 ## The Docker container is stateless; all data is stored in /shared
 volumes:
   - volume:
-      host: discourse_application_data
+      host: discourse_data
       guest: /shared
   - volume:
       host: /var/discourse/shared/standalone/log/var-log

roles/docker-discourse/vars/main.yml

@@ -1 +1,4 @@
-docker_compose_instance_directory: "{{path_docker_compose_instances}}discourse/"
+docker_compose_project_name:        "attendize"
+database_password:                  "{{ baserow_database_password }}"
+database_version:                   "{{ baserow_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-elk/templates/docker-compose.yml.j2

@@ -23,8 +23,6 @@ services:
       # Use single node discovery in order to disable production mode and avoid bootstrap checks.
       # see: https://www.elastic.co/guide/en/elasticsearch/reference/current/bootstrap-checks.html
       discovery.type: single-node
-    networks:
-      - elk
 
   logstash:
     build:
@@ -47,8 +45,6 @@ services:
       - "9600:9600"
     environment:
       LS_JAVA_OPTS: "-Xmx256m -Xms256m"
-    networks:
-      - elk
     depends_on:
       - elasticsearch
 
@@ -64,14 +60,8 @@ services:
         read_only: true
     ports:
       - "127.0.0.1:{{ http_port }}:5601"
-    networks:
-      - elk
     depends_on:
       - elasticsearch
 
-networks:
-  elk:
-    driver: bridge
-
 volumes:
   elasticsearch:

roles/docker-funkwhale/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: Create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-funkwhale/templates/docker-compose.yml.j2

@@ -2,7 +2,7 @@ version: "3"
 
 services:
 
-{% include 'templates/docker-redis-service.yml.j2' %}
+{% include 'templates/docker-service-redis.yml.j2' %}
 
     env_file: .env
 
@@ -10,9 +10,7 @@ services:
     restart: always
     image: funkwhale/api:${FUNKWHALE_VERSION:-latest}
     depends_on:
-{% if not enable_central_database %}
-      - postgres
-% endif %}      
+{% include 'templates/docker-container-depends-on.yml.j2' %} 
       - redis
     env_file: .env
     command: celery -A funkwhale_api.taskapp worker -l INFO --concurrency=${CELERYD_CONCURRENCY-0}
@@ -20,23 +18,24 @@ services:
       - C_FORCE_ROOT=true
     volumes:
       - "data:${MEDIA_ROOT}"
+{% include 'templates/docker-container-networks.yml.j2' %}
+
 
   celerybeat:
     restart: always
     image: funkwhale/api:${FUNKWHALE_VERSION:-latest}
     depends_on:
-{% if not enable_central_database %}
-      - postgres
-% endif %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
       - redis
     env_file: .env
     command: celery -A funkwhale_api.taskapp beat --pidfile= -l INFO
+{% include 'templates/docker-container-networks.yml.j2' %}
 
   api:
     restart: always
     image: funkwhale/api:${FUNKWHALE_VERSION:-latest}
     depends_on:
-      - postgres
+{% include 'templates/docker-container-depends-on.yml.j2' %}
       - redis
     env_file: .env
     volumes:
@@ -44,6 +43,7 @@ services:
       #- "${STATIC_ROOT}:${STATIC_ROOT}"
     ports:
       - "5000"
+{% include 'templates/docker-container-networks.yml.j2' %}
 
   front:
     restart: always
@@ -61,15 +61,12 @@ services:
     ports:
       # override those variables in your .env file if needed
       - "${FUNKWHALE_API_IP}:${FUNKWHALE_API_PORT}:80"
+{% include 'templates/docker-container-networks.yml.j2' %}
 
-{% if not enable_central_database %}
-{% include 'templates/docker-postgres-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
-volumes:
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
   redis:
 
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-funkwhale/vars/main.yml

@@ -1,7 +1,5 @@
 docker_compose_project_name:        "funkwhale"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
 nginx_docker_reverse_proxy_extra_configuration: "client_max_body_size 512M;"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:                  "{{docker_compose_project_name}}"
 database_password:                  "{{funkwhale_database_password}}"
 database_version:                   "{{ funkwhale_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-gitea/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-gitea/templates/docker-compose.yml.j2

@@ -27,18 +27,10 @@ services:
       - data:/data
       - /etc/timezone:/etc/timezone:ro
       - /etc/localtime:/etc/localtime:ro
-{% if not enable_central_database %}
-    depends_on:
-      - database
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-container-networks.yml.j2' %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
 
-volumes:
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
-{% if not enable_central_database %}
-  database:
-{% endif %}
 
-networks:
-  default:
-    driver: bridge
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-gitea/vars/main.yml

@@ -1,6 +1,3 @@
 docker_compose_project_name:        "gitea"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:                      "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:                  "{{docker_compose_project_name}}"
 database_password:                  "{{gitea_database_password}}"
+database_type:                      "mariadb"

roles/docker-gitlab/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: create database in central Postgres
-  include_role:
-    name: docker-postgres
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-gitlab/templates/docker-compose.yml.j2

@@ -39,17 +39,12 @@ services:
 {% endif %}
       redis:
 
-{% include 'templates/docker-redis-service.yml.j2' %}
+{% include 'templates/docker-service-redis.yml.j2' %}
 
-{% if not enable_central_database %}
-{% include 'templates/docker-postgres-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
-volumes:
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   redis:
   config:
   logs:
   data:
-{% if not enable_central_database %}
-  database:
-{% endif %}

roles/docker-gitlab/vars/main.yml

@@ -1,7 +1,4 @@
 docker_compose_project_name:        "gitlab"
-docker_compose_instance_directory: "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:                      "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:                  "{{docker_compose_project_name}}"
 database_password:                  "{{gitlab_database_password}}"
 database_version:                   "{{ gitlab_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-joomla/tasks/main.yml

@@ -1,15 +1,18 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
   loop: "{{ domains }}"
   loop_control:
     loop_var: domain
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-joomla/templates/docker-compose.yml.j2

@@ -11,21 +11,19 @@ services:
       JOOMLA_DB_PASSWORD: "{{database_password}}"
       JOOMLA_DB_NAME: "{{database_databasename}}"
     restart: always
-{% if not enable_central_database %}
-    depends_on:
-      - database
-{% endif %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
     volumes:
       - data:/var/www/html
     ports:
       - "127.0.0.1:{{http_port}}:80"
-
-{% if not enable_central_database %}
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
-
-volumes:
-  data:
-{% if not enable_central_database %}
+{% include 'templates/docker-container-networks.yml.j2' %}
+{% if enable_central_database %}
+    depends_on:
       database:
-{% endif %}
+
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
+
+{% include 'templates/docker-compose-volumes.yml.j2' %}
+  data:
+
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-joomla/vars/main.yml

@@ -1,6 +1,3 @@
 docker_compose_project_name:  	    "joomla"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
 database_password:  	              "{{joomla_database_password}}"
+database_type:                      "postgres"

roles/docker-listmonk/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: create database in central Postgres
-  include_role:
-    name: docker-postgres
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-listmonk/templates/docker-compose.yml.j2

@@ -11,13 +11,9 @@ services:
       - TZ=Etc/UTC
     volumes:
       - ./config.toml:/listmonk/config.toml
+{% include 'templates/docker-container-networks.yml.j2' %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
 
-{% if not enable_central_database %}
-    depends_on:
-      - database
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
-{% include 'templates/docker-postgres-service.yml.j2' %}
-
-volumes:
-  database:
-{% endif %}
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-listmonk/vars/main.yml

@@ -1,7 +1,4 @@
 docker_compose_project_name:  	    "listmonk"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
 database_password:  	              "{{listmonk_database_password}}"
 database_version:                   "{{ listmonk_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-mailu/tasks/main.yml

@@ -1,4 +1,12 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
   vars:
@@ -28,11 +36,6 @@
     state: directory
     mode: 0755
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: add docker-compose.yml
   template: 
     src:  "docker-compose.yml.j2" 

roles/docker-mailu/templates/docker-compose.yml.j2

@@ -2,20 +2,9 @@ version: '2.2'
 
 services:
 
-{% include 'templates/docker-redis-service.yml.j2' %}
-    env_file: mailu.env
-    depends_on:
-      - resolver
-    dns:
-      - 192.168.203.254
-    depends_on:
-      - resolver
-    dns:
-      - 192.168.203.254
-    networks:
-      - default
-      - webmail
-      - radicale
+{% include 'templates/docker-service-redis.yml.j2' %}
+
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
   # Core services
   resolver:
@@ -25,6 +14,10 @@ services:
     networks:
       default:
         ipv4_address: 192.168.203.254
+      {{docker_compose_project_name}}_network: 
+{% if enable_central_database %}
+      central_{{ database_type }}_network:
+{% endif %}
     logging:
       driver: journald
 
@@ -53,10 +46,10 @@ services:
       database:
         condition: service_healthy
 {% endif %}
-    networks:
-      - default
-      - webmail
-      - radicale
+{% include 'templates/docker-container-networks.yml.j2' %}
+      default:
+      webmail:
+      radicale:
     dns:
       - 192.168.203.254
       
@@ -68,16 +61,16 @@ services:
       - "admin_data:/data"
       - "dkim:/dkim"
     depends_on:
-      - resolver
-      - front
-      - redis
-{% if not enable_central_database %}
-      - database
-{% endif %}
+      resolver:
+      front:
+      redis:
+{% include 'templates/docker-container-depends-on.yml.j2' %}
     logging:
       driver: journald
     dns:
       - 192.168.203.254
+{% include 'templates/docker-container-networks.yml.j2' %}
+
   imap:
     image: ghcr.io/mailu/dovecot:{{version_mailu}}
     restart: always
@@ -92,6 +85,7 @@ services:
       - 192.168.203.254
     logging:
       driver: journald
+{% include 'templates/docker-container-networks.yml.j2' %}
 
   smtp:
     image: ghcr.io/mailu/postfix:{{version_mailu}}
@@ -107,6 +101,7 @@ services:
       - 192.168.203.254
     logging:
       driver: journald
+{% include 'templates/docker-container-networks.yml.j2' %}
 
   oletools:
     image: ghcr.io/mailu/oletools:{{version_mailu}}
@@ -116,8 +111,8 @@ services:
       - resolver
     dns:
       - 192.168.203.254
-    networks:
-      - noinet
+{% include 'templates/docker-container-networks.yml.j2' %}
+      noinet:
 
   antispam:
     image: ghcr.io/mailu/rspamd:{{version_mailu}}
@@ -134,11 +129,12 @@ services:
       - resolver
     dns:
       - 192.168.203.254
-    networks:
-      - default
-      - noinet
     logging:
       driver: journald
+{% include 'templates/docker-container-networks.yml.j2' %}
+      default:
+      noinet:  
+
 
   # Optional services
   antivirus:
@@ -153,6 +149,7 @@ services:
       - 192.168.203.254
     logging:
       driver: journald
+{% include 'templates/docker-container-networks.yml.j2' %}
 
   webdav:
     image: ghcr.io/mailu/radicale:{{version_mailu}}
@@ -168,6 +165,7 @@ services:
       - resolver
     dns:
       - 192.168.203.254
+{% include 'templates/docker-container-networks.yml.j2' %}
 
   fetchmail:
     image: ghcr.io/mailu/fetchmail:{{version_mailu}}
@@ -184,6 +182,7 @@ services:
       - resolver
     dns:
       - 192.168.203.254
+{% include 'templates/docker-container-networks.yml.j2' %}
 
   webmail:
     image: ghcr.io/mailu/webmail:{{version_mailu}}
@@ -198,18 +197,13 @@ services:
       - resolver
     logging:
       driver: journald
-    networks:
-      - webmail
     dns:
       - 192.168.203.254
-{% if not enable_central_database %}
-{% include 'templates/docker-postgres-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-container-networks.yml.j2' %}
+      webmail:
 
 volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   smtp_queue:
   admin_data:
   webdav_data:
@@ -218,7 +212,8 @@ volumes:
   dkim:
   dovecot_mail:
   redis:
-networks:
+
+{% include 'templates/docker-compose-networks.yml.j2' %}
   default:
     driver: bridge
     ipam:

roles/docker-mariadb/tasks/main.yml

@@ -1,19 +1,21 @@
 - name: Create Docker network for MariaDB
   docker_network:
-    name: mariadb_network
+    name: central_mariadb_network
     state: present
   when: run_once_docker_mariadb is not defined
 
 - name: install MariaDB
   docker_container:
-    name: mariadb
+    name: central-mariadb
     image: mariadb:latest #could lead to problems with nextcloud
     detach: yes
     env:
       MARIADB_ROOT_PASSWORD:  "{{central_mariadb_root_password}}"
       MARIADB_AUTO_UPGRADE:   "1"
     networks:
-      - name: mariadb_network
+      - name: central_mariadb_network
+    volumes:
+      - database:/var/lib/mysql
     published_ports:
       - "127.0.0.1:3306:3306"
     command: "--transaction-isolation=READ-COMMITTED --binlog-format=ROW" #for nextcloud

roles/docker-mastodon/tasks/main.yml

@@ -1,15 +1,18 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include create-domains.yml"
   include_tasks: create-domains.yml
   loop: "{{ domains }}"
   loop_control:
     loop_var: domain
 
-- name: create database in central Postgres
-  include_role:
-    name: docker-postgres
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-mastodon/templates/.env.production.j2

@@ -10,9 +10,11 @@ DB_PORT=5432
 DB_NAME={{database_databasename}}
 DB_USER={{database_username}}
 DB_PASS={{database_password}}
+
 REDIS_HOST=redis
 REDIS_PORT=6379
 REDIS_PASSWORD=
+
 SMTP_SERVER={{system_email_host}}
 SMTP_PORT={{system_email_smtp_port}}
 SMTP_LOGIN={{system_email_username}}

roles/docker-mastodon/templates/docker-compose.yml.j2

@@ -1,83 +1,64 @@
 version: '3'
 services:
 
-{% include 'templates/docker-redis-service.yml.j2' %}
+{% include 'templates/docker-service-redis.yml.j2' %}
 
-    networks:
-      - internal_network
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
   web:
     image: tootsuite/mastodon:{{version_mastodon}}
     restart: always
     env_file: .env.production
     command: bash -c "rm -f /mastodon/tmp/pids/server.pid; bundle exec rails s -p 3000"
-    networks:
-      - external_network
-      - internal_network
     healthcheck:
-      # prettier-ignore
       test: ['CMD-SHELL', 'wget -q --spider --proxy=off localhost:3000/health || exit 1']
     ports:
       - "127.0.0.1:{{http_port}}:3000"
     depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - redis
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      redis:
+        condition: service_healthy
     volumes:
       - data:/mastodon/public/system
     logging:
       driver: journald
+{% include 'templates/docker-container-networks.yml.j2' %}
+
   streaming:
     image: tootsuite/mastodon:{{version_mastodon}}
     restart: always
     env_file: .env.production
     command: node ./streaming
-    networks:
-      - external_network
-      - internal_network
     healthcheck:
-      # prettier-ignore
       test: ['CMD-SHELL', 'wget -q --spider --proxy=off localhost:4000/api/v1/streaming/health || exit 1']
     ports:
       - "127.0.0.1:{{stream_port}}:4000"
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - redis
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      redis:
+        condition: service_healthy
     logging:
       driver: journald
+{% include 'templates/docker-container-networks.yml.j2' %}
+
   sidekiq:
     image: tootsuite/mastodon:{{version_mastodon}}
     restart: always
     env_file: .env.production
     command: bundle exec sidekiq
     depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - redis
-    networks:
-      - external_network
-      - internal_network
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      redis:
+        condition: service_healthy
     volumes:
       - data:/mastodon/public/system
     healthcheck:
       test: ['CMD-SHELL', "ps aux | grep '[s]idekiq\ 6' || false"]
     logging:
       driver: journald
-{% if not enable_central_database %}
-{% include 'templates/docker-postgres-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-container-networks.yml.j2' %}
 
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   redis:
   data:
-networks:
-  external_network:
-  internal_network:
-    internal: true
+
+{% include 'templates/docker-compose-networks.yml.j2' %}

roles/docker-mastodon/vars/main.yml

@@ -1,7 +1,4 @@
 docker_compose_project_name:  	    "mastodon"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
 database_password:  	              "{{mastodon_database_password}}"
 database_version:                   "{{ mastodon_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-matomo/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-matomo/templates/docker-compose.yml.j2

@@ -19,14 +19,9 @@ services:
 {% if not enable_central_database %}
     depends_on:
       - database
-{% include 'templates/docker-mariadb-service.yml.j2' %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
 {% endif %}
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
-networks:
-  default:
-    driver: bridge

roles/docker-matomo/vars/main.yml

@@ -1,7 +1,4 @@
 ---
 docker_compose_project_name:  	    "matomo"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
+database_type:                      "mariadb"
 database_password:  	              "{{matomo_database_password}}"

roles/docker-matrix-compose/tasks/main.yml

@@ -1,15 +1,18 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
   vars:
     domain:     "{{synapse_domain}}"
     http_port:  "{{synapse_http_port}}"
         
-- name: create database in central Postgres
-  include_role:
-    name: docker-postgres
-  when: enable_central_database | bool
-        
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
   vars:        

roles/docker-matrix-compose/templates/docker-compose.yml.j2

@@ -19,7 +19,7 @@ services:
 {% if not enable_central_database %}
     depends_on:
       - database
-{% include 'templates/docker-postgres-service.yml.j2' %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 {% endif %}
   
   element:
@@ -59,15 +59,9 @@ services:
   #  volumes:
   #  - instagram_bridge_data:/data  
 
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   synapse_data:
   #telegram_bridge_data:
   #whatsapp_bridge_data:
   #facebook_bridge_data:
   #instagram_bridge_data:
-networks:
-  default:
-    driver: bridge

roles/docker-matrix-compose/vars/main.yml

@@ -1,7 +1,5 @@
 ---
 docker_compose_project_name:  	    "matrix"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
 database_password:  	              "{{matrix_database_password}}"
+database_version:                   "{{ baserow_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-mybb/tasks/main.yml

@@ -1,15 +1,18 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks create-proxy-with-domain-replace.yml"
   include_tasks: create-proxy-with-domain-replace.yml
   loop: "{{ domains + [source_domain] }}"
   loop_control:
     loop_var: domain
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_confd_directory}} and parent directories"
   file:
     path: "{{docker_compose_instance_confd_directory}}"

roles/docker-mybb/templates/docker-compose.yml.j2

@@ -26,15 +26,7 @@ services:
     - "{{docker_compose_instance_confd_directory}}:{{target_mount_conf_d_directory}}:ro"
     - "data:/var/www/html:ro"
 
-{% if not enable_central_database %}
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
-networks:
-  default:
-    driver: bridge

roles/docker-mybb/vars/main.yml

@@ -1,11 +1,8 @@
 ---
 docker_compose_project_name:  	                "mybb"
-docker_compose_instance_directory:              "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
 docker_compose_instance_confd_directory:        "{{docker_compose_instance_directory}}conf.d/"
 docker_compose_instance_confd_defaultconf_file: "{{docker_compose_instance_confd_directory}}default.conf"
 target_mount_conf_d_directory:                  "{{nginx_servers_directory}}"
 source_domain:                                  "mybb.{{top_domain}}"
-database_host:      	                          "database"
-database_databasename:                          "{{docker_compose_project_name}}"
-database_username:  	                          "{{docker_compose_project_name}}"
 database_password:                              "{{mybb_database_password}}"
+database_type:                                  "mariadb"

roles/docker-nextcloud/tasks/main.yml

@@ -1,4 +1,12 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include task certbot-matomo.yml"
   include_tasks: certbot-matomo.yml
 
@@ -20,11 +28,6 @@
     dest: "{{path_docker_volumes}}nextcloud/nginx.conf"
   notify: docker compose project setup
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-nextcloud/templates/docker-compose.yml.j2

@@ -17,7 +17,7 @@ services:
     depends_on:
       - database
 
-{% include 'templates/docker-mariadb-service.yml.j2' %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 {% endif %}
 
   web:
@@ -34,7 +34,7 @@ services:
     volumes_from:
       - application
 
-{% include 'templates/docker-redis-service.yml.j2' %}
+{% include 'templates/docker-service-redis.yml.j2' %}
 
   cron:
     image: "nextcloud:{{version_nextcloud}}-fpm-alpine"
@@ -44,17 +44,9 @@ services:
     volumes:
       - data:/var/www/html
     entrypoint: /cron.sh
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - redis
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      redis:
+
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
   redis:
-networks:
-  default:
-    driver: bridge

roles/docker-nextcloud/vars/main.yml

@@ -1,7 +1,4 @@
 ---
 docker_compose_project_name:        "nextcloud"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
 database_password:  	              "{{nextcloud_database_password}}"
+database_type:                      "mariadb"

roles/docker-openproject/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: create database in central Postgres
-  include_role:
-    name: docker-postgres
-  when: enable_central_database | bool
-
 - name: "include tasks update-repository-with-docker-compose.yml"
   include_tasks: update-repository-with-docker-compose.yml
 

roles/docker-openproject/templates/docker-compose.yml.j2

@@ -4,10 +4,7 @@ networks:
   frontend:
   backend:
 
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
 
 x-op-restart-policy: &restart_policy
@@ -36,9 +33,7 @@ x-op-app: &app
 
 services:
 
-{% if not enable_central_database %}
-{% include 'templates/docker-postgres-service.yml.j2' %}
-{% endif %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
     networks:
       - backend
 
@@ -72,12 +67,9 @@ services:
     networks:
       - frontend
       - backend
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - cache
-      - seeder
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      cache:
+      seeder:
     labels:
       - autoheal=true
     healthcheck:
@@ -101,24 +93,18 @@ services:
     command: "./docker/prod/worker"
     networks:
       - backend
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - cache
-      - seeder
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      cache:
+      seeder:
 
   cron:
     <<: *app
     command: "./docker/prod/cron"
     networks:
       - backend
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - cache
-      - seeder
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      cache:
+      seeder:
 
   seeder:
     <<: *app

roles/docker-openproject/vars/main.yml

@@ -3,8 +3,7 @@ repository_directory:               "{{ path_docker_compose_instances }}{{docker
 docker_compose_instance_directory:  "{{repository_directory}}compose/"
 docker_compose_file_path:           "{{docker_compose_instance_directory}}docker-compose.yml"
 docker_compose_backup_path:         "/tmp/{{docker_compose_project_name}}-docker-compose-backup.yml"
-database_host:                      "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:                  "postgres"
 database_password:                  "{{openproject_database_password}}"
 repository_address:                 "https://github.com/opf/openproject-deploy"
+database_version:                   "{{ openproject_database_version | default(postgres_default_version) }}"
+database_type:                      "postgres"

roles/docker-peertube/tasks/main.yml

@@ -1,15 +1,18 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include create-domains.yml"
   include_tasks: create-domains.yml
   loop: "{{ domains }}"
   loop_control:
     loop_var: domain
 
-- name: create database in central Postgres
-  include_role:
-    name: docker-postgres
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-peertube/templates/docker-compose.yml.j2

@@ -18,18 +18,16 @@ services:
 {% if not enable_central_database %}
       - database
 
-{% include 'templates/docker-postgres-service.yml.j2' %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 {% endif %}
 
-{% include 'templates/docker-redis-service.yml.j2' %}
+{% include 'templates/docker-service-redis.yml.j2' %}
 
     env_file:
       - .env
-volumes:
+
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   assets:
-{% if not enable_central_database %}
-  database:
-{% endif %}
   data:
   redis:
   config:

roles/docker-peertube/vars/main.yml

@@ -1,6 +1,3 @@
 docker_compose_project_name:  	    "peertube"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"  
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
+database_type:                      "mariadb"
 database_password:  	              "{{peertube_database_password}}"

roles/docker-pixelfed/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-pixelfed/templates/docker-compose.yml.j2

@@ -1,6 +1,11 @@
 version: '2'
 
 services:
+
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
+
+{% include 'templates/docker-service-redis.yml.j2' %}
+
   application:
     image: zknt/pixelfed
     restart: always
@@ -14,11 +19,8 @@ services:
       - "./env:/var/www/.env"
     ports:
       - "{{http_port}}:80"
-    depends_on:
-{% if not enable_central_database %}
-      - database
-{% endif %}
-      - redis
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      redis:
   worker:
     image: zknt/pixelfed
     restart: always
@@ -36,22 +38,11 @@ services:
       interval: 60s
       timeout: 5s
       retries: 1
-    depends_on:
-      - redis
-      - application
-{% if not enable_central_database %}
+{% include 'templates/docker-container-depends-on.yml.j2' %}
+      redis:
+      application:
 
-      - database
-
-{% include 'templates/docker-mariadb-service.yml.j2' %}
-{% endif %}
-
-{% include 'templates/docker-redis-service.yml.j2' %}
-
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   redis:
   application_data:
   bootstrap:

roles/docker-pixelfed/vars/main.yml

@@ -1,7 +1,4 @@
 docker_compose_project_name:                    "pixelfed"
-docker_compose_instance_directory:              "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
 nginx_docker_reverse_proxy_extra_configuration: "client_max_body_size 512M;"
-database_host:                                  "database"
-database_databasename:                          "{{docker_compose_project_name}}"
-database_username:                              "{{docker_compose_project_name}}"
+database_type:                                  "mariadb"
 database_password:                              "{{pixelfed_database_password}}"

roles/docker-postgres/tasks/main.yml

@@ -1,6 +1,6 @@
 - name: Create Docker network for PostgreSQL
   docker_network:
-    name: postgres_network
+    name: central_postgres_network
     state: present
   when: run_once_docker_postgres is not defined
 
@@ -13,7 +13,7 @@
       POSTGRES_PASSWORD: "{{ central_postgres_password }}"
       POSTGRES_INITDB_ARGS: "--encoding=UTF8 --locale=C" # Necessary for docker-matrix
     networks:
-      - name: postgres_network
+      - name: central_postgres_network
     published_ports:
       - "127.0.0.1:5432:5432"
   when: run_once_docker_postgres is not defined

roles/docker-wordpress/tasks/main.yml

@@ -1,4 +1,11 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
 
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
@@ -8,11 +15,6 @@
   vars:
     nginx_docker_reverse_proxy_extra_configuration: "client_max_body_size {{wordpress_max_upload_size}};"
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-wordpress/templates/docker-compose.yml.j2

@@ -21,14 +21,8 @@ services:
     depends_on:
       - database
 
-{% include 'templates/docker-mariadb-service.yml.j2' %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 {% endif %}
 
-volumes:
-{% if not enable_central_database %}
-  database:
-{% endif %}
+{% include 'templates/docker-compose-volumes.yml.j2' %}
   data:
-networks:
-  default:
-    driver: bridge

roles/docker-wordpress/vars/main.yml

@@ -1,7 +1,4 @@
 docker_compose_project_name:  	    "wordpress"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
 wordpress_max_upload_size:          "64M"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
+database_type:                      "mariadb"
 database_password:  	              "{{wordpress_database_password}}"

roles/docker-yourls/tasks/main.yml

@@ -1,12 +1,15 @@
 ---
+- name: include docker vars
+  include_vars: vars/docker-database-service.yml.j2
+
+- name: create central database
+  include_role:
+    name: docker-{{database_type}}
+  when: enable_central_database | bool
+
 - name: "include tasks nginx-docker-proxy-domain.yml"
   include_tasks: nginx-docker-proxy-domain.yml
 
-- name: create database in central MariaDB
-  include_role:
-    name: docker-mariadb
-  when: enable_central_database | bool
-
 - name: "create {{docker_compose_instance_directory}}"
   file:
     path: "{{docker_compose_instance_directory}}"

roles/docker-yourls/templates/docker-compose.yml.j2

@@ -20,11 +20,8 @@ services:
     depends_on:
       - database
 
-{% include 'templates/docker-mariadb-service.yml.j2' %}
+{% include 'templates/docker-service-{{ database_type }}.yml.j2' %}
 
 volumes:
   database:
 {% endif %}
-networks:
-  default:
-    driver: bridge

roles/docker-yourls/vars/main.yml

@@ -1,6 +1,3 @@
 docker_compose_project_name:    	  "yourls"
-docker_compose_instance_directory:  "{{path_docker_compose_instances}}{{docker_compose_project_name}}/"
-database_host:      	              "database"
-database_databasename:              "{{docker_compose_project_name}}"
-database_username:  	              "{{docker_compose_project_name}}"
+database_type:                      "mariadb"
 database_password:  	              "{{yourls_database_password}}"

templates/docker-compose-networks.yml.j2

@@ -0,0 +1,6 @@
+networks:
+{% if enable_central_database %}
+  central_{{ database_type }}_network:
+    external: true
+{% endif %}
+  {{docker_compose_project_name}}_network:

templates/docker-compose-volumes.yml.j2

@@ -0,0 +1,4 @@
+volumes:
+{% if not enable_central_database %}
+  database:
+{% endif %}

templates/docker-container-depends-on.yml.j2

@@ -0,0 +1,5 @@
+{% if enable_central_database %}
+    depends_on:
+      database:
+		    condition: service_healthy
+{% endif %}

templates/docker-container-networks.yml.j2

@@ -0,0 +1,5 @@
+    networks:
+      - {{docker_compose_project_name}}_network  
+{% if enable_central_database %}
+      - central_{{ database_type }}_network
+{% endif %}

templates/docker-service-mariadb.yml.j2

@@ -1,3 +1,4 @@
+{% if not enable_central_database %}
   database:
     logging:
       driver: journald
@@ -17,3 +18,6 @@
       interval: 3s
       timeout: 1s
       retries: 5
+    networks:
+      - {{docker_compose_project_name}}_network
+{% endif %}

templates/docker-service-postgres.yml.j2

@@ -1,4 +1,4 @@
-  
+{% if not enable_central_database %}  
   database:
     image: postgres:{{database_version}}-alpine
     environment:
@@ -16,3 +16,6 @@
       - type:   volume
         source: database
         target: /var/lib/postgresql/data
+    networks:
+      - {{docker_compose_project_name}}_network
+{% endif %}

templates/docker-service-redis.yml.j2

@@ -10,3 +10,5 @@
       interval: 1s
       timeout: 3s
       retries: 30
+    networks:
+      - {{docker_compose_project_name}}_network

vars/docker-database-service.yml.j2

@@ -0,0 +1,4 @@
+docker_compose_instance_directory:  "{{ docker_compose_instance_directory | default(path_docker_compose_instances + docker_compose_project_name + '/') }}"
+database_host:                      "{{ database_host | default('database') }}"
+database_databasename:              "{{ database_databasename | default(docker_compose_project_name) }}"
+database_username:                  "{{ database_username | default(docker_compose_project_name) }}"