Google Pub Sub Prerequisites¶

Introduction¶

These are the prerequisites for using the Google Pub Sub connector with a Google Pub/Sub instance:

• Create a Service Account and Grant Roles

• Obtain Credentials

Create a Service Account and Grant Roles¶

Follow these steps to create a service account and grant roles to provide access to the Google Cloud project to be used with the Google Pub Sub connector:

1. Select a project in the Google Cloud Console.

   Note

   Ensure the Google Pub/Sub API is enabled for the selected project.

2. In the navigation menu, navigate to IAM & Admin > Service Accounts.

3. Click Create Service Account, located along the top of the page.

4. Enter the Service account details:

   

   • Service account name: Enter any string for the service account name.

   • Service account ID: This field is automatically populated to match the Service account name and can be edited, if desired.

   • Service account description: Enter a description for the service account.

5. Click Create and Continue.

6. Assign a role to allow access to the project (required for a successful connection in the Google Pub Sub connector):

   

   • Role: Using the dropdown, select the appropriate Pub/Sub role or custom role for your use case, then click Continue.

     When using predefined Google Pub/Sub roles, these are the role combinations that can be granted to the service account to allow access to each Google Pub Sub activity:

     Activity	Google Pub/Sub Roles
     Acknowledge Message	Pub/Sub Admin or Pub/Sub Subscriber
     Create Topic	Pub/Sub Admin or Pub/Sub Editor or Pub/Sub Lite Admin or Pub/Sub Lite Editor
     Get Message	Pub/Sub Admin or Pub/Sub Subscriber and Pub/Sub Viewer (both are required if the Pub/Sub Admin is not being used)
     Publish Message	Pub/Sub Admin or Pub/Sub Subscriber and Pub/Sub Viewer (both are required if the Pub/Sub Admin is not being used)
     Create Subscription	Pub/Sub Admin or Pub/Sub Editor or Pub/Sub Lite Admin or Pub/Sub Lite Editor
     Delete	Pub/Sub Admin or Pub/Sub Editor or Pub/Sub Subscriber or Pub/Sub Lite Admin or Pub/Sub Lite Editor

7. Optionally, grant access to the service account to specific users:

   

8. Click Done.

Obtain Credentials¶

Follow these steps to obtain the credentials required for connection configuration:

1. On the Service accounts page, click the Actions menu for the service account created above, then click Manage keys.

2. Click Add Key > Create new key, select JSON as the Key type, and then click Create to download the JSON file to your computer:

   

3. Open the downloaded JSON file in a text editor and retain the values of the project_id, private_key, and client_email to be used during connection configuration.