Add the following to a .env file in your Cube project:


Environment VariableDescriptionPossible ValuesRequiredSupports multiple data sources?
CUBEJS_DB_HOSTThe host URL for a databaseA valid database host URL
CUBEJS_DB_PORTThe port for the database connectionA valid port number
CUBEJS_DB_NAMEThe name of the database to connect toA valid database name
CUBEJS_DB_USERThe username used to connect to the databaseA valid database username
CUBEJS_DB_PASSThe password used to connect to the databaseA valid database password
CUBEJS_CONCURRENCYThe number of concurrent connections each queue has to the database. Default is 2A valid number
CUBEJS_DB_MAX_POOLThe maximum number of concurrent database connections to pool. Default is 8A valid number

To enable SSL-encrypted connections between Cube and Materialize, set the CUBEJS_DB_SSL environment variable to true. For more information on how to configure custom certificates, please check out [Enable SSL Connections to the Database][ref-recipe-enable-ssl].

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