To set up a Google Cloud Storage (GCS) connection, you need access to a storage bucket with set roles granting appropriate permissions for uploading and publishing data to GCS.

As a best practice to prevent unauthorized access, Tamr recommends creating a dedicated bucket for staging data exchange with Tamr. A single bucket can be used for both inputs and outputs.

After configuring access to the bucket, you can add the GCS connection in Tamr Cloud.

1. Navigate to Google Cloud Storage console.
2. Select your bucket.
3. Select Permissions > Grant Access.
4. In the Add Principals section, enter the email of your service account that you generated.
5. In the Assign Roles dropdown, select Storage Legacy Bucket Writer and Storage Object Viewer.
6. At the project level, give the service account the following permissions to the project it is associated with:
   1. Service Usage Consumer (roles/serviceusage.serviceUsageConsumer).
7. Select Save.

Required Information for GCS Connection

When adding a connection, you are prompted for specific information for the connection type. Gather the following information before adding the connection.

Required Information

• Name
• Description (optional)
• Project Bucket
• Prefix (optional)
  Configures a sub-path in the container for this connection. If you specify the prefix, your directories in the path must be created.
• Google Cloud Storage Key File
  This is a Google service account json. See Create and manage service account keys for more.