OpenMetadata/ingestion/examples/sample_data/storage/service.json

{
  "type": "s3",
  "serviceName": "s3_storage_sample",
  "serviceConnection": {
    "config": {
      "type": "S3",
        "awsConfig": {
          "awsAccessKeyId": "aws_access_key_id",
          "awsSecretAccessKey": "aws_secret_access_key",
          "awsRegion": "awsRegion",
          "endPointURL": "https://endpoint.com/"
        }
    }
  },
  "sourceConfig": {
  }
}