List Certificate Authorities

List all Certificate Authorities in the given CA pool.

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For detailed documentation that includes this code sample, see the following:

• List certificate authorities

Code sample

Go

To authenticate to CA Service, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import (
	"context"
	"fmt"
	"io"

	privateca "cloud.google.com/go/security/privateca/apiv1"
	"cloud.google.com/go/security/privateca/apiv1/privatecapb"
	"google.golang.org/api/iterator"
)

// List all Certificate Authorities present in the given CA Pool.
func listCas(w io.Writer, projectId string, location string, caPoolId string) error {
	// projectId := "your_project_id"
	// location := "us-central1"	// For a list of locations, see: https://cloud.google.com/certificate-authority-service/docs/locations.
	// caPoolId := "ca-pool-id"		// The id of the CA pool under which the CAs to be listed are present.

	ctx := context.Background()
	caClient, err := privateca.NewCertificateAuthorityClient(ctx)
	if err != nil {
		return fmt.Errorf("NewCertificateAuthorityClient creation failed: %w", err)
	}
	defer caClient.Close()

	fullCaPoolName := fmt.Sprintf("projects/%s/locations/%s/caPools/%s", projectId, location, caPoolId)

	// Create the ListCertificateAuthorities.
	// See https://pkg.go.dev/cloud.google.com/go/security/privateca/apiv1/privatecapb#ListCertificateAuthoritiesRequest.
	req := &privatecapb.ListCertificateAuthoritiesRequest{Parent: fullCaPoolName}

	it := caClient.ListCertificateAuthorities(ctx, req)
	for {
		resp, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return fmt.Errorf("unable to get the list of cerficate authorities: %w", err)
		}

		fmt.Fprintf(w, " - %s (state: %s)", resp.Name, resp.State.String())
	}

	return nil
}

Java

To authenticate to CA Service, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import com.google.cloud.security.privateca.v1.CaPoolName;
import com.google.cloud.security.privateca.v1.CertificateAuthority;
import com.google.cloud.security.privateca.v1.CertificateAuthorityServiceClient;
import java.io.IOException;

public class ListCertificateAuthorities {

  public static void main(String[] args) throws IOException {
    // TODO(developer): Replace these variables before running the sample.
    // location: For a list of locations, see:
    // https://cloud.google.com/certificate-authority-service/docs/locations
    // poolId: The id of the CA pool under which the CAs to be listed are present.
    String project = "your-project-id";
    String location = "ca-location";
    String poolId = "ca-pool-id";
    listCertificateAuthority(project, location, poolId);
  }

  // List all Certificate authorities present in the given CA Pool.
  public static void listCertificateAuthority(String project, String location, String poolId)
      throws IOException {
    // Initialize client that will be used to send requests. This client only needs to be created
    // once, and can be reused for multiple requests. After completing all of your requests, call
    // the `certificateAuthorityServiceClient.close()` method on the client to safely
    // clean up any remaining background resources.
    try (CertificateAuthorityServiceClient certificateAuthorityServiceClient =
        CertificateAuthorityServiceClient.create()) {

      // Create CA pool name comprising of project, location and the pool name.
      CaPoolName parent =
          CaPoolName.newBuilder()
              .setProject(project)
              .setLocation(location)
              .setCaPool(poolId)
              .build();

      // List the CA name and its corresponding state.
      for (CertificateAuthority certificateAuthority :
          certificateAuthorityServiceClient.listCertificateAuthorities(parent).iterateAll()) {
        System.out.println(
            certificateAuthority.getName() + " is " + certificateAuthority.getState());
      }
    }
  }
}

Python

To authenticate to CA Service, set up Application Default Credentials. For more information, see Set up authentication for a local development environment.

import google.cloud.security.privateca_v1 as privateca_v1


def list_certificate_authorities(
    project_id: str, location: str, ca_pool_name: str
) -> None:
    """
    List all Certificate authorities present in the given CA Pool.

    Args:
        project_id: project ID or project number of the Cloud project you want to use.
        location: location you want to use. For a list of locations, see: https://cloud.google.com/certificate-authority-service/docs/locations.
        ca_pool_name: the name of the CA pool under which the CAs to be listed are present.
    """

    caServiceClient = privateca_v1.CertificateAuthorityServiceClient()

    ca_pool_path = caServiceClient.ca_pool_path(project_id, location, ca_pool_name)

    # List the CA name and its corresponding state.
    for ca in caServiceClient.list_certificate_authorities(parent=ca_pool_path):
        print(ca.name, "is", ca.state)

What's next

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