- `COMM_DATABASE_USER`: The username the keyserver uses to connect to MariaDB. Replace `<MariaDB user>` with your desired username.
- `COMM_DATABASE_PASSWORD`: Corresponding password for the above user. Replace `<MariaDB password>` with your desired password.
+### Primary / secondary configuration
+
+- `COMM_NODE_ROLE`: Specifies whether a node is primary or secondary. Currently only used for multi-node keyservers, and as such is irrelevant to the Docker Compose workflow described here.
+
### Identity service configuration
- `COMM_JSONCONFIG_secrets_user_credentials`: Credentials for authenticating against the Identity service. Replace `<user>` and `<password>` with any values. In the future, they will need to be actual credentials registered with the Identity service.