YOURLS_DB_HOST: "{{database_host}}"
YOURLS_DB_USER: "{{database_username}}"
YOURLS_DB_PASS: "{{database_password}}"
YOURLS_DB_NAME: "{{database_name}}"
YOURLS_SITE:    "{{ web_protocol }}://{{domains | get_domain(application_id)}}"
YOURLS_USER:    "{{applications.yourls.users.administrator.username}}"
YOURLS_PASS:    "{{applications[application_id].credentials.administrator_password}}"