Authenticate to Cloud Run Admin API

Google Cloud CLI

To authenticate a workload running on Google Cloud, use the credentials of the service identity attached to the Cloud Run service by following these steps:

1. Install the Google Cloud CLI, then initialize it using the following command:

   gcloud init

2. Set up authentication:

   1. Create the service account:

      gcloud iam service-accounts create SERVICE_ACCOUNT_NAME

      Replace SERVICE_ACCOUNT_NAME with a name for the service account.

   2. Provide access to your project and your resources by granting a role to the service account:

      gcloud projects add-iam-policy-binding PROJECT_ID 
      
      --member="serviceAccount:SERVICE_ACCOUNT_NAME@PROJECT_ID.iam.gserviceaccount.com" 
      
      --role=ROLE

      Replace the following:
      • SERVICE_ACCOUNT_NAME: the name of the service account
      • PROJECT_ID: the project ID where you created the service account
      • ROLE: the role required to access the Cloud Client Libraries.

   3. To grant another role to the service account, run the command as you did in the previous step.

   4. Grant your Google Account a role that lets you use the service account roles and attach the service account to other resources:

      gcloud iam service-accounts add-iam-policy-binding SERVICE_ACCOUNT_NAME@PROJECT_ID.iam.gserviceaccount.com 
      
      --member="user:USER_EMAIL" --role=roles/iam.serviceAccountUser

      Replace the following:
      • SERVICE_ACCOUNT_NAME: the name of the service account
      • PROJECT_ID: the project ID where you created the service account
      • USER_EMAIL: the email address for your Google Account

3. Create the resource that will run your code, and attach the service account to that resource.

Local development

You can set up credentials for a local development environment in the following ways:

• User credentials for client libraries or third-party tools

• User credentials for REST requests from the command line

  Client libraries or third-party tools

  Set up Application Default Credentials (ADC) in your local environment:

  1. Install the Google Cloud CLI. After installation, initialize the Google Cloud CLI by running the following command:

     gcloud init

     If you're using an external identity provider (IdP), you must first sign in to the gcloud CLI with your federated identity.

  2. If you're using a local shell, then create local authentication credentials for your user account:

     gcloud auth application-default login

     You don't need to do this if you're using Cloud Shell.

     If an authentication error is returned, and you are using an external identity provider (IdP), confirm that you have signed in to the gcloud CLI with your federated identity.

     A login screen is displayed. After you log in, your credentials are stored in the local credential file used by ADC.

  For more information, see Set up ADC for a local development environment.

  REST requests from the command line

  When you make a REST request from the command line, you can use your gcloud CLI credentials by including gcloud auth print-access-token as part of the command that sends the request.

  The following example lists service accounts for the specified project. You can use the same pattern for any REST request.

  Before using any of the request data, make the following replacements:

  • PROJECT_ID: Your Google Cloud project ID.

  To send your request, expand one of these options:

  curl (Linux, macOS, or Cloud Shell)

  Execute the following command:

  curl -X GET \
       -H "Authorization: Bearer $(gcloud auth print-access-token)" \
       "https://iam.googleapis.com/v1/projects/PROJECT_ID/serviceAccounts"

  PowerShell (Windows)

  Execute the following command:

  $cred = gcloud auth print-access-token
  $headers = @{ "Authorization" = "Bearer $cred" }
  
  Invoke-WebRequest `
      -Method GET `
      -Headers $headers `
      -Uri "https://iam.googleapis.com/v1/projects/PROJECT_ID/serviceAccounts" | Select-Object -Expand Content

   

  For more information about authenticating using REST and gRPC, see Authenticate for using REST. For information about the difference between your local ADC credentials and your gcloud CLI credentials, see gcloud CLI credentials and ADC credentials.

On-prem/other cloud

We recommend that you use Workload Identity Federation to set up authentication from outside of Google Cloud. For more information, see Set up ADC for on-premises or another cloud provider.