Parameter	Sample Value	Description
jdbc_url required	jdbc:postgresql://<DB_URL>:5432/iceberg	JDBC connection string for the catalog database. Replace <DB_URL> with your database host or use host.docker.internal for local Docker containers.
jdbc_username required	iceberg	Database username for JDBC catalog authentication.
jdbc_password required	password	Database password for JDBC catalog authentication.
iceberg_s3_path required	s3://warehouse	S3 bucket path where Iceberg table data and metadata files will be stored.
aws_region required	us-east-1	AWS Region where your S3 bucket exist. Required so OLake Go calls the correct regional S3 endpoints.
catalog_name	olake_iceberg	Name of the Iceberg catalog OLake Go registers tables under. Defaults to olake_iceberg if left empty.
s3_endpoint	https://glue.ap-south-1.amazonaws.com	S3 API endpoint for writing Iceberg data files. Optional for AWS S3 but required for S3-compatible storage like MinIO.
s3_use_ssl	false/true	Controls whether OLake Go uses HTTPS when connecting to the S3 API for writing Iceberg files. Set to false when S3 Endpoint uses http:// (for example, local MinIO). Set to true when the endpoint uses https:// (for example, AWS S3 or TLS-enabled MinIO).
s3_path_style	false/true	Controls how OLake Go formats S3 request URLs. Path-style puts the bucket name in the URL path instead of the hostname. This is required for MinIO and other S3-compatible storage that do not support AWS-style virtual-hosted URLs.
aws_access_key	XXX	AWS access key ID for authentication. Optional if using IAM roles or instance profiles. If using IAM: Docker Compose: add the required IAM environment variables under x-envs in your compose file. See Service Environment Variables for setup details. Kubernetes: set up pod IAM in Cloud IAM Integration.
aws_secret_key	XXX	AWS secret access key for authentication. Optional if using IAM roles or instance profiles. If using IAM: Docker Compose: add the required IAM environment variables under x-envs in your compose file. See Service Environment Variables for setup details. Kubernetes: set up pod IAM in Cloud IAM Integration.
arrow_writes	false/true	Writes data and delete files using Apache Arrow based writer and registers them in Iceberg.