-e APP_URL=yourbaseurl `# for specifying the IP:port or URL your application will be accessed on (ie. `http://192.168.1.1:6875` or `https://bookstack.mydomain.com`` \
-e DB_HOST=yourdbhost `# for specifying the database host` \
-e DB_PORT=yourdbport `# for specifying the database port if not default 3306` \
-e DB_USER=yourdbuser `# for specifying the database user` \
-e DB_PASS=yourdbpass `# for specifying the database password (minimum 4 characters & non-alphanumeric passwords must be properly escaped.)` \
-e QUEUE_CONNECTION=`# optional` `# Set to `database` to enable async actions like sending email or triggering webhooks. See [documentation](https://www.bookstackapp.com/docs/admin/email-webhooks/#async-action-handling).` \