database_instance:  "{{ 'central-' + database_type if applications[application_id].features.database | bool else application_id }}"
database_host:      "{{ 'central-' + database_type if applications[application_id].features.database | bool else 'database' }}"
database_name:      "{{ application_id }}"
database_username:  "{{ application_id }}"
database_port:      "{{ 3306 if database_type == 'mariadb' else 5432 }}"
database_env:       "{{docker_compose.directories.env}}{{database_type}}.env"
database_url_jdbc:  "jdbc:{{ database_type if database_type == 'mariadb' else 'postgresql' }}://{{ database_host }}:{{ database_port }}/{{ database_name }}"
database_url_full:  "{{database_type}}://{{database_username}}:{{database_password}}@{{database_host}}:{{database_port}}/{{ database_name }}"