启用、停用和恢复证书授权机构

本文档介绍了如何管理证书授权机构 (CA) 的状态。

启用 CA

所有下级 CA 都是在 AWAITING_USER_ACTIVATION 状态下创建的,并且在激活后会设置为 STAGED 状态。所有根 CA 默认都是在 STAGED 状态下创建的。您必须将 CA 状态更改为 ENABLED,才能将其纳入 CA 池的证书颁发轮替。如需详细了解 CA 的运行状态,请参阅证书授权机构 状态

如需启用处于 STAGEDDISABLED 状态的 CA,请按照以下说明操作:

控制台

  1. 在 Google Cloud 控制台中,前往证书授权机构页面。

    前往“证书授权机构”页面

  2. 证书授权机构下,选择目标 CA。

  3. 点击启用

  4. 在随即打开的对话框中,点击确认

gcloud

如需启用根 CA,请使用以下命令:

gcloud privateca roots enable CA_ID --location LOCATION --pool POOL_ID

替换以下内容:

  • CA_ID:CA 的唯一标识符
  • LOCATION:CA 池的位置。如需查看 完整的位置列表,请参阅位置
  • POOL_ID:CA 所属 CA 池的唯一标识符

如需详细了解 gcloud privateca roots enable 命令,请参阅 gcloud privateca roots enable

Go

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证

import (
	"context"
	"fmt"
	"io"

	privateca "cloud.google.com/go/security/privateca/apiv1"
	"cloud.google.com/go/security/privateca/apiv1/privatecapb"
)

// Enable the Certificate Authority present in the given ca pool.
// CA cannot be enabled if it has been already deleted.
func enableCa(w io.Writer, projectId string, location string, caPoolId string, caId 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 CA is present.
	// caId := "ca-id"				// The id of the CA to be enabled.

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

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

	// Create the EnableCertificateAuthorityRequest.
	// See https://pkg.go.dev/cloud.google.com/go/security/privateca/apiv1/privatecapb#EnableCertificateAuthorityRequest.
	req := &privatecapb.EnableCertificateAuthorityRequest{Name: fullCaName}

	op, err := caClient.EnableCertificateAuthority(ctx, req)
	if err != nil {
		return fmt.Errorf("EnableCertificateAuthority failed: %w", err)
	}

	var caResp *privatecapb.CertificateAuthority
	if caResp, err = op.Wait(ctx); err != nil {
		return fmt.Errorf("EnableCertificateAuthority failed during wait: %w", err)
	}

	if caResp.State != privatecapb.CertificateAuthority_ENABLED {
		return fmt.Errorf("unable to enable Certificate Authority. Current state: %s", caResp.State.String())
	}

	fmt.Fprintf(w, "Successfully enabled Certificate Authority: %s.", caId)
	return nil
}

Java

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证


import com.google.api.core.ApiFuture;
import com.google.cloud.security.privateca.v1.CertificateAuthority.State;
import com.google.cloud.security.privateca.v1.CertificateAuthorityName;
import com.google.cloud.security.privateca.v1.CertificateAuthorityServiceClient;
import com.google.cloud.security.privateca.v1.EnableCertificateAuthorityRequest;
import com.google.longrunning.Operation;
import java.io.IOException;
import java.util.concurrent.ExecutionException;

public class EnableCertificateAuthority {

  public static void main(String[] args)
      throws InterruptedException, ExecutionException, 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 CA is present.
    // certificateAuthorityName: The name of the CA to be enabled.
    String project = "your-project-id";
    String location = "ca-location";
    String poolId = "ca-pool-id";
    String certificateAuthorityName = "certificate-authority-name";
    enableCertificateAuthority(project, location, poolId, certificateAuthorityName);
  }

  // Enable the Certificate Authority present in the given ca pool.
  // CA cannot be enabled if it has been already deleted.
  public static void enableCertificateAuthority(
      String project, String location, String poolId, String certificateAuthorityName)
      throws IOException, ExecutionException, InterruptedException {
    try (CertificateAuthorityServiceClient certificateAuthorityServiceClient =
        CertificateAuthorityServiceClient.create()) {
      // Create the Certificate Authority Name.
      CertificateAuthorityName certificateAuthorityParent =
          CertificateAuthorityName.newBuilder()
              .setProject(project)
              .setLocation(location)
              .setCaPool(poolId)
              .setCertificateAuthority(certificateAuthorityName)
              .build();

      // Create the Enable Certificate Authority Request.
      EnableCertificateAuthorityRequest enableCertificateAuthorityRequest =
          EnableCertificateAuthorityRequest.newBuilder()
              .setName(certificateAuthorityParent.toString())
              .build();

      // Enable the Certificate Authority.
      ApiFuture<Operation> futureCall =
          certificateAuthorityServiceClient
              .enableCertificateAuthorityCallable()
              .futureCall(enableCertificateAuthorityRequest);
      Operation response = futureCall.get();

      if (response.hasError()) {
        System.out.println("Error while enabling Certificate Authority !" + response.getError());
        return;
      }

      // Get the current CA state.
      State caState =
          certificateAuthorityServiceClient
              .getCertificateAuthority(certificateAuthorityParent)
              .getState();

      // Check if the CA is enabled.
      if (caState == State.ENABLED) {
        System.out.println("Enabled Certificate Authority : " + certificateAuthorityName);
      } else {
        System.out.println(
            "Cannot enable the Certificate Authority ! Current CA State: " + caState);
      }
    }
  }
}

Python

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证

import google.cloud.security.privateca_v1 as privateca_v1


def enable_certificate_authority(
    project_id: str, location: str, ca_pool_name: str, ca_name: str
) -> None:
    """
    Enable the Certificate Authority present in the given ca pool.
    CA cannot be enabled if it has been already deleted.

    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 CA is present.
        ca_name: the name of the CA to be enabled.
    """

    caServiceClient = privateca_v1.CertificateAuthorityServiceClient()
    ca_path = caServiceClient.certificate_authority_path(
        project_id, location, ca_pool_name, ca_name
    )

    # Create the Enable Certificate Authority Request.
    request = privateca_v1.EnableCertificateAuthorityRequest(
        name=ca_path,
    )

    # Enable the Certificate Authority.
    operation = caServiceClient.enable_certificate_authority(request=request)
    operation.result()

    # Get the current CA state.
    ca_state = caServiceClient.get_certificate_authority(name=ca_path).state

    # Check if the CA is enabled.
    if ca_state == privateca_v1.CertificateAuthority.State.ENABLED:
        print("Enabled Certificate Authority:", ca_name)
    else:
        print("Cannot enable the Certificate Authority ! Current CA State:", ca_state)

停用 CA

停用 CA 会阻止其颁发证书。系统会拒绝向已停用的 CA 发出的所有证书请求。其他功能(例如撤消证书、发布证书吊销列表 (CRL) 和更新 CA 元数据)仍可执行。

如需停用 CA,请按照以下说明操作:

控制台

  1. 在 Google Cloud 控制台中,前往证书授权机构页面。

    前往“证书授权机构”页面

  2. 证书授权机构下,选择目标 CA。

  3. 点击停用

  4. 在随即打开的对话框中,点击确认

gcloud

如需停用根 CA,请使用以下命令。

gcloud privateca roots disable CA_ID --location LOCATION --pool POOL_ID

替换以下内容:

  • CA_ID:您要停用的根 CA 的唯一标识符
  • LOCATION:CA 池的位置。如需查看 完整的位置列表,请参阅位置
  • POOL_ID:根 CA 所属 CA 池的唯一标识符

如需详细了解 gcloud privateca roots disable 命令,请参阅 gcloud privateca roots disable

Go

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证

import (
	"context"
	"fmt"
	"io"

	privateca "cloud.google.com/go/security/privateca/apiv1"
	"cloud.google.com/go/security/privateca/apiv1/privatecapb"
)

// Disable a Certificate Authority from the specified CA pool.
func disableCa(w io.Writer, projectId string, location string, caPoolId string, caId 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 CA is present.
	// caId := "ca-id"				// The id of the CA to be disabled.

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

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

	// Create the DisableCertificateAuthorityRequest.
	// See https://pkg.go.dev/cloud.google.com/go/security/privateca/apiv1/privatecapb#DisableCertificateAuthorityRequest.
	req := &privatecapb.DisableCertificateAuthorityRequest{Name: fullCaName}

	op, err := caClient.DisableCertificateAuthority(ctx, req)
	if err != nil {
		return fmt.Errorf("DisableCertificateAuthority failed: %w", err)
	}

	var caResp *privatecapb.CertificateAuthority
	if caResp, err = op.Wait(ctx); err != nil {
		return fmt.Errorf("DisableCertificateAuthority failed during wait: %w", err)
	}

	if caResp.State != privatecapb.CertificateAuthority_DISABLED {
		return fmt.Errorf("unable to disabled Certificate Authority. Current state: %s", caResp.State.String())
	}

	fmt.Fprintf(w, "Successfully disabled Certificate Authority: %s.", caId)
	return nil
}

Java

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证


import com.google.api.core.ApiFuture;
import com.google.cloud.security.privateca.v1.CertificateAuthority.State;
import com.google.cloud.security.privateca.v1.CertificateAuthorityName;
import com.google.cloud.security.privateca.v1.CertificateAuthorityServiceClient;
import com.google.cloud.security.privateca.v1.DisableCertificateAuthorityRequest;
import com.google.longrunning.Operation;
import java.io.IOException;
import java.util.concurrent.ExecutionException;

public class DisableCertificateAuthority {

  public static void main(String[] args)
      throws InterruptedException, ExecutionException, 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 CA is present.
    // certificateAuthorityName: The name of the CA to be disabled.
    String project = "your-project-id";
    String location = "ca-location";
    String poolId = "ca-pool-id";
    String certificateAuthorityName = "certificate-authority-name";
    disableCertificateAuthority(project, location, poolId, certificateAuthorityName);
  }

  // Disable a Certificate Authority which is present in the given CA pool.
  public static void disableCertificateAuthority(
      String project, String location, String poolId, String certificateAuthorityName)
      throws IOException, ExecutionException, InterruptedException {
    // 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 the Certificate Authority Name.
      CertificateAuthorityName certificateAuthorityNameParent =
          CertificateAuthorityName.newBuilder()
              .setProject(project)
              .setLocation(location)
              .setCaPool(poolId)
              .setCertificateAuthority(certificateAuthorityName)
              .build();

      // Create the Disable Certificate Authority Request.
      DisableCertificateAuthorityRequest disableCertificateAuthorityRequest =
          DisableCertificateAuthorityRequest.newBuilder()
              .setName(certificateAuthorityNameParent.toString())
              .build();

      // Disable the Certificate Authority.
      ApiFuture<Operation> futureCall =
          certificateAuthorityServiceClient
              .disableCertificateAuthorityCallable()
              .futureCall(disableCertificateAuthorityRequest);
      Operation response = futureCall.get();

      if (response.hasError()) {
        System.out.println("Error while disabling Certificate Authority !" + response.getError());
        return;
      }

      // Get the current CA state.
      State caState =
          certificateAuthorityServiceClient
              .getCertificateAuthority(certificateAuthorityNameParent)
              .getState();

      // Check if the Certificate Authority is disabled.
      if (caState == State.DISABLED) {
        System.out.println("Disabled Certificate Authority : " + certificateAuthorityName);
      } else {
        System.out.println(
            "Cannot disable the Certificate Authority ! Current CA State: " + caState);
      }
    }
  }
}

Python

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证

import google.cloud.security.privateca_v1 as privateca_v1


def disable_certificate_authority(
    project_id: str, location: str, ca_pool_name: str, ca_name: str
) -> None:
    """
    Disable a Certificate Authority which is 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 CA is present.
        ca_name: the name of the CA to be disabled.
    """

    caServiceClient = privateca_v1.CertificateAuthorityServiceClient()
    ca_path = caServiceClient.certificate_authority_path(
        project_id, location, ca_pool_name, ca_name
    )

    # Create the Disable Certificate Authority Request.
    request = privateca_v1.DisableCertificateAuthorityRequest(name=ca_path)

    # Disable the Certificate Authority.
    operation = caServiceClient.disable_certificate_authority(request=request)
    operation.result()

    # Get the current CA state.
    ca_state = caServiceClient.get_certificate_authority(name=ca_path).state

    # Check if the CA is disabled.
    if ca_state == privateca_v1.CertificateAuthority.State.DISABLED:
        print("Disabled Certificate Authority:", ca_name)
    else:
        print("Cannot disable the Certificate Authority ! Current CA State:", ca_state)

恢复 CA

当 CA 被安排删除时,在删除之前有 30 天的宽限期。在宽限期内,CA Service 运营经理 (roles/privateca.caManager) 或 CA Service 管理员 (roles/privateca.admin) 可以停止删除过程。您只能在宽限期内恢复 CA。

如需将安排删除的 CA 恢复为已停用状态,请按照以下说明操作:

控制台

  1. 在 Google Cloud 控制台中,前往证书授权机构页面。

    前往“证书授权机构”页面

  2. 证书授权机构 下,选择要 恢复的 CA。

  3. 点击恢复

  4. 在随即打开的对话框中,点击确认

  5. 检查 CA 现在是否处于 DISABLED 状态。

gcloud

  1. 确认 CA 处于 DELETED 状态。

    gcloud privateca roots describe CA_ID \
        --pool POOL_ID \
        --location LOCATION \
        --format="value(state)"
    

    其中:

    • CA_ID:CA 的唯一标识符
    • POOL_ID:CA 所属 CA 池的唯一标识符
    • LOCATION:CA 池的位置。如需查看 完整的位置列表,请参阅位置
    • --format 标志用于设置打印命令输出资源的格式。

    该命令会返回 DELETED

  2. 恢复 CA。

    gcloud privateca roots undelete CA_ID --location LOCATION --pool POOL_ID
    

    替换以下内容:

    • CA_ID:CA 的唯一标识符
    • LOCATION:CA 池的位置。如需查看 完整的位置列表,请参阅位置
    • POOL_ID:CA 所属 CA 池的唯一标识符

    如需详细了解 gcloud privateca roots undelete 命令, 请参阅 gcloud privateca roots undelete

  3. 确认 CA 的状态现在为 DISABLED

    gcloud privateca roots describe CA_ID \
        --pool POOL_ID \
        --location LOCATION \
        --format="value(state)"
    

    其中:

    • CA_ID:CA 的唯一标识符
    • POOL_ID:CA 所属 CA 池的唯一标识符
    • LOCATION:CA 池的位置。如需查看 完整的位置列表,请参阅位置
    • --format 标志用于设置打印命令输出资源的格式。

    该命令会返回 DISABLED

Go

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证

import (
	"context"
	"fmt"
	"io"

	privateca "cloud.google.com/go/security/privateca/apiv1"
	"cloud.google.com/go/security/privateca/apiv1/privatecapb"
)

// Undelete a Certificate Authority from the specified CA pool.
func unDeleteCa(w io.Writer, projectId string, location string, caPoolId string, caId 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 CA is present.
	// caId := "ca-id"				// The id of the CA to be undeleted.

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

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

	// Check if the CA is deleted.
	// See https://pkg.go.dev/cloud.google.com/go/security/privateca/apiv1/privatecapb#GetCertificateAuthorityRequest.
	caReq := &privatecapb.GetCertificateAuthorityRequest{Name: fullCaName}
	caResp, err := caClient.GetCertificateAuthority(ctx, caReq)
	if err != nil {
		return fmt.Errorf("GetCertificateAuthority failed: %w", err)
	}

	if caResp.State != privatecapb.CertificateAuthority_DELETED {
		return fmt.Errorf("you can only undelete deleted Certificate Authorities. %s is not deleted", caId)
	}

	// Create the UndeleteCertificateAuthority.
	// See https://pkg.go.dev/cloud.google.com/go/security/privateca/apiv1/privatecapb#UndeleteCertificateAuthorityRequest.
	req := &privatecapb.UndeleteCertificateAuthorityRequest{Name: fullCaName}

	op, err := caClient.UndeleteCertificateAuthority(ctx, req)
	if err != nil {
		return fmt.Errorf("UndeleteCertificateAuthority failed: %w", err)
	}

	if caResp, err = op.Wait(ctx); err != nil {
		return fmt.Errorf("UndeleteCertificateAuthority failed during wait: %w", err)
	}

	if caResp.State == privatecapb.CertificateAuthority_DELETED {
		return fmt.Errorf("unable to undelete Certificate Authority. Current state: %s", caResp.State.String())
	}

	fmt.Fprintf(w, "Successfully undeleted Certificate Authority: %s.", caId)
	return nil
}

Java

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证


import com.google.api.core.ApiFuture;
import com.google.cloud.security.privateca.v1.CertificateAuthority.State;
import com.google.cloud.security.privateca.v1.CertificateAuthorityName;
import com.google.cloud.security.privateca.v1.CertificateAuthorityServiceClient;
import com.google.cloud.security.privateca.v1.UndeleteCertificateAuthorityRequest;
import com.google.longrunning.Operation;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class UndeleteCertificateAuthority {

  public static void main(String[] args)
      throws InterruptedException, ExecutionException, TimeoutException, 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 deleted CA is present.
    // certificateAuthorityName: The name of the CA to be restored (undeleted).
    String project = "your-project-id";
    String location = "ca-location";
    String poolId = "ca-pool-id";
    String certificateAuthorityName = "certificate-authority-name";

    undeleteCertificateAuthority(project, location, poolId, certificateAuthorityName);
  }

  // Restore a deleted CA, if still within the grace period of 30 days.
  public static void undeleteCertificateAuthority(
      String project, String location, String poolId, String certificateAuthorityName)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // 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()) {

      String certificateAuthorityParent =
          CertificateAuthorityName.of(project, location, poolId, certificateAuthorityName)
              .toString();

      // Confirm if the CA is in DELETED stage.
      if (getCurrentState(certificateAuthorityServiceClient, certificateAuthorityParent)
          != State.DELETED) {
        System.out.println("CA is not deleted !");
        return;
      }

      // Create the Request.
      UndeleteCertificateAuthorityRequest undeleteCertificateAuthorityRequest =
          UndeleteCertificateAuthorityRequest.newBuilder()
              .setName(certificateAuthorityParent)
              .build();

      // Undelete the CA.
      ApiFuture<Operation> futureCall =
          certificateAuthorityServiceClient
              .undeleteCertificateAuthorityCallable()
              .futureCall(undeleteCertificateAuthorityRequest);

      Operation response = futureCall.get(5, TimeUnit.SECONDS);

      // CA state changes from DELETED to DISABLED if successfully restored.
      // Confirm if the CA is DISABLED.
      if (response.hasError()
          || getCurrentState(certificateAuthorityServiceClient, certificateAuthorityParent)
          != State.DISABLED) {
        System.out.println(
            "Unable to restore the Certificate Authority! Please try again !"
                + response.getError());
        return;
      }

      // The CA will be in the DISABLED state. Enable before use.
      System.out.println(
          "Successfully restored the Certificate Authority ! " + certificateAuthorityName);
    }
  }

  // Get the current state of CA.
  private static State getCurrentState(
      CertificateAuthorityServiceClient client, String certificateAuthorityParent) {
    return client.getCertificateAuthority(certificateAuthorityParent).getState();
  }
}

Python

如需向 CA Service 进行身份验证,请设置应用默认凭据。如需了解详情,请参阅 为本地开发环境设置身份验证

import google.cloud.security.privateca_v1 as privateca_v1


def undelete_certificate_authority(
    project_id: str, location: str, ca_pool_name: str, ca_name: str
) -> None:
    """
    Restore a deleted CA, if still within the grace period of 30 days.

    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 deleted CA is present.
        ca_name: the name of the CA to be restored (undeleted).
    """

    caServiceClient = privateca_v1.CertificateAuthorityServiceClient()
    ca_path = caServiceClient.certificate_authority_path(
        project_id, location, ca_pool_name, ca_name
    )

    # Confirm if the CA is in DELETED stage.
    ca_state = caServiceClient.get_certificate_authority(name=ca_path).state
    if ca_state != privateca_v1.CertificateAuthority.State.DELETED:
        print("CA is not deleted !")
        return

    # Create the Request.
    request = privateca_v1.UndeleteCertificateAuthorityRequest(name=ca_path)

    # Undelete the CA.
    operation = caServiceClient.undelete_certificate_authority(request=request)
    result = operation.result()

    print("Operation result", result)

    # Get the current CA state.
    ca_state = caServiceClient.get_certificate_authority(name=ca_path).state

    # CA state changes from DELETED to DISABLED if successfully restored.
    # Confirm if the CA is DISABLED.
    if ca_state == privateca_v1.CertificateAuthority.State.DISABLED:
        print("Successfully undeleted Certificate Authority:", ca_name)
    else:
        print(
            "Unable to restore the Certificate Authority! Please try again! Current state:",
            ca_state,
        )

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