静的外部 IP アドレスの予約

resource "google_compute_address" "default" {
  name   = "my-test-static-ip-address"
  region = "us-central1"
}

resource "google_compute_global_address" "default" {
  project      = var.project_id # Replace this with your service project ID in quotes
  name         = "ipv6-address"
  address_type = "EXTERNAL"
  ip_version   = "IPV6"
}

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	"cloud.google.com/go/compute/apiv1/computepb"
)

// reserveNewRegionalExternal reserves a new regional external IP address in Google Cloud Platform.
func reserveNewRegionalExternal(w io.Writer, projectID, region, addressName string, isPremium bool) (*computepb.Address, error) {
	// projectID := "your_project_id"
	// region := "europe-central2"
	// addressName := "your_address_name"
	// isPremium := true
	ctx := context.Background()

	networkTier := computepb.AccessConfig_STANDARD.String()
	if isPremium {
		networkTier = computepb.AccessConfig_PREMIUM.String()
	}

	address := &computepb.Address{
		Name:        &addressName,
		NetworkTier: &networkTier,
	}

	client, err := compute.NewAddressesRESTClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("NewAddressesRESTClient: %w", err)
	}
	defer client.Close()

	req := &computepb.InsertAddressRequest{
		Project:         projectID,
		Region:          region,
		AddressResource: address,
	}

	op, err := client.Insert(ctx, req)
	if err != nil {
		return nil, fmt.Errorf("unable to reserve regional address: %w", err)
	}

	err = op.Wait(ctx)
	if err != nil {
		return nil, fmt.Errorf("waiting for the regional address reservation operation to complete: %w", err)
	}

	addressResult, err := client.Get(ctx, &computepb.GetAddressRequest{
		Project: projectID,
		Region:  region,
		Address: addressName,
	})
	if err != nil {
		return nil, fmt.Errorf("unable to get reserved regional address: %w", err)
	}

	fmt.Fprintf(w, "Regional address %v reserved: %v", addressName, addressResult.GetAddress())

	return addressResult, err
}

// reserveNewGlobalExternal reserves a new global external IP address in Google Cloud Platform.
func reserveNewGlobalExternal(w io.Writer, projectID, addressName string, isV6 bool) (*computepb.Address, error) {
	// projectID := "your_project_id"
	// addressName := "your_address_name"
	// isV6 := false
	ctx := context.Background()
	ipVersion := computepb.Address_IPV4.String()
	if isV6 {
		ipVersion = computepb.Address_IPV6.String()
	}

	address := &computepb.Address{
		Name:      &addressName,
		IpVersion: &ipVersion,
	}

	client, err := compute.NewGlobalAddressesRESTClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("NewGlobalAddressesRESTClient: %w", err)
	}
	defer client.Close()

	req := &computepb.InsertGlobalAddressRequest{
		Project:         projectID,
		AddressResource: address,
	}

	op, err := client.Insert(ctx, req)
	if err != nil {
		return nil, fmt.Errorf("unable to reserve global address: %w", err)
	}

	err = op.Wait(ctx)
	if err != nil {
		return nil, fmt.Errorf("waiting for the global address reservation operation to complete: %w", err)
	}

	addressResult, err := client.Get(ctx, &computepb.GetGlobalAddressRequest{
		Project: projectID,
		Address: addressName,
	})
	if err != nil {
		return nil, fmt.Errorf("unable to get reserved global address: %w", err)
	}

	fmt.Fprintf(w, "Global address %v reserved: %v", addressName, addressResult.GetAddress())

	return addressResult, nil
}

import com.google.cloud.compute.v1.Address;
import com.google.cloud.compute.v1.Address.AddressType;
import com.google.cloud.compute.v1.Address.IpVersion;
import com.google.cloud.compute.v1.Address.NetworkTier;
import com.google.cloud.compute.v1.AddressesClient;
import com.google.cloud.compute.v1.GlobalAddressesClient;
import com.google.cloud.compute.v1.InsertAddressRequest;
import com.google.cloud.compute.v1.InsertGlobalAddressRequest;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class ReserveNewExternalAddress {

  public static void main(String[] args)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // Project ID or project number of the Google Cloud project you want to use.
    String projectId = "your-project-id";
    // Address name you want to use.
    String addressName = "your-address-name";
    // 'IPV4' or 'IPV6' depending on the IP version. IPV6 if True. Option only for global regions.
    boolean ipV6 = false;
    // 'STANDARD' or 'PREMIUM' network tier. Standard option available only in regional ip.
    boolean isPremium = false;
    // region (Optional[str]): The region to reserve the IP address in, if regional.
    // Must be None if global.
    String region = null;

    reserveNewExternalIpAddress(projectId, addressName, ipV6, isPremium, region);
  }

  // Reserves a new external IP address in the specified project and region.
  public static List<Address> reserveNewExternalIpAddress(String projectId, String addressName,
                                                          boolean ipV6, boolean isPremium,
                                                          String region)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {

    String ipVersion = ipV6 ? IpVersion.IPV6.name() : IpVersion.IPV4.name();
    String networkTier = !isPremium && region != null
            ? NetworkTier.STANDARD.name() : NetworkTier.PREMIUM.name();

    Address.Builder address = Address.newBuilder()
            .setName(addressName)
            .setAddressType(AddressType.EXTERNAL.name())
            .setNetworkTier(networkTier);

    // Use global client if no region is specified
    if (region == null) {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (GlobalAddressesClient client = GlobalAddressesClient.create()) {
        address.setIpVersion(ipVersion);

        InsertGlobalAddressRequest addressRequest = InsertGlobalAddressRequest.newBuilder()
                .setProject(projectId)
                .setRequestId(UUID.randomUUID().toString())
                .setAddressResource(address.build())
                .build();

        client.insertCallable().futureCall(addressRequest).get(30, TimeUnit.SECONDS);

        return Lists.newArrayList(client.list(projectId).iterateAll());
      }
    } else {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (AddressesClient client = AddressesClient.create()) {
        address.setRegion(region);

        InsertAddressRequest addressRequest = InsertAddressRequest.newBuilder()
                .setProject(projectId)
                .setRequestId(UUID.randomUUID().toString())
                .setAddressResource(address.build())
                .setRegion(region)
                .build();

        client.insertCallable().futureCall(addressRequest).get(30, TimeUnit.SECONDS);

        return Lists.newArrayList(client.list(projectId, region).iterateAll());
      }
    }
  }
}

from typing import Optional

from google.cloud.compute_v1.services.addresses.client import AddressesClient
from google.cloud.compute_v1.services.global_addresses import GlobalAddressesClient
from google.cloud.compute_v1.types import Address


def reserve_new_external_ip_address(
    project_id: str,
    address_name: str,
    is_v6: bool = False,
    is_premium: bool = False,
    region: Optional[str] = None,
):
    """
    Reserves a new external IP address in the specified project and region.

    Args:
    project_id (str): Your Google Cloud project ID.
    address_name (str): The name for the new IP address.
    is_v6 (bool): 'IPV4' or 'IPV6' depending on the IP version. IPV6 if True.
    is_premium (bool): 'STANDARD' or 'PREMIUM' network tier. Standard option available only in regional ip.
    region (Optional[str]): The region to reserve the IP address in, if regional. Must be None if global.

    Returns:
    None
    """

    ip_version = "IPV6" if is_v6 else "IPV4"
    network_tier = "STANDARD" if not is_premium and region else "PREMIUM"

    address = Address(
        name=address_name,
        address_type="EXTERNAL",
        network_tier=network_tier,
    )
    if not region:  # global IP address
        client = GlobalAddressesClient()
        address.ip_version = ip_version
        operation = client.insert(project=project_id, address_resource=address)
    else:  # regional IP address
        address.region = region
        client = AddressesClient()
        operation = client.insert(
            project=project_id, region=region, address_resource=address
        )

    operation.result()

    print(f"External IP address '{address_name}' reserved successfully.")

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	computepb "cloud.google.com/go/compute/apiv1/computepb"
	"google.golang.org/protobuf/proto"
)

// promoteEphemeralAddress promotes an ephemeral IP address to a reserved static external IP address.
func promoteEphemeralAddress(w io.Writer, projectID, region, ephemeralIP, addressName string) error {
	// projectID := "your_project_id"
	// region := "europe-central2"
	// ephemeral_ip := "214.123.100.121"
	ctx := context.Background()

	client, err := compute.NewAddressesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewAddressesRESTClient: %w", err)
	}
	defer client.Close()

	addressResource := &computepb.Address{
		Name:        proto.String(addressName),
		AddressType: proto.String("EXTERNAL"),
		Address:     proto.String(ephemeralIP),
	}

	req := &computepb.InsertAddressRequest{
		Project:         projectID,
		Region:          region,
		AddressResource: addressResource,
	}

	op, err := client.Insert(ctx, req)
	if err != nil {
		return fmt.Errorf("failed to insert address promoted: %v", err)
	}

	// Wait for the operation to complete
	err = op.Wait(ctx)
	if err != nil {
		return fmt.Errorf("failed to complete promotion operation: %v", err)
	}

	fmt.Fprintf(w, "Ephemeral IP %s address promoted successfully", ephemeralIP)
	return nil
}

import com.google.cloud.compute.v1.Address;
import com.google.cloud.compute.v1.Address.AddressType;
import com.google.cloud.compute.v1.AddressesClient;
import com.google.cloud.compute.v1.InsertAddressRequest;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.util.List;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class PromoteEphemeralIp {

  public static void main(String[] args)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // Project ID or project number of the Google Cloud project you want to use.
    String projectId = "your-project-id";
    // Region where the VM and IP is located.
    String region = "your-region-id";
    // Ephemeral IP address to promote.
    String ephemeralIp = "your-ephemeralIp";
    // Name of the address to assign.
    String addressName = "your-addressName";

    promoteEphemeralIp(projectId, region, ephemeralIp, addressName);
  }

  // Promote ephemeral IP found on the instance to a static IP.
  public static List<Address> promoteEphemeralIp(String projectId, String region,
                                                 String ephemeralIp, String addressName)
          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.
    try (AddressesClient client = AddressesClient.create()) {
      Address addressResource = Address.newBuilder()
              .setName(addressName)
              .setRegion(region)
              .setAddressType(AddressType.EXTERNAL.name())
              .setAddress(ephemeralIp)
              .build();

      InsertAddressRequest addressRequest = InsertAddressRequest.newBuilder()
              .setRegion(region)
              .setProject(projectId)
              .setAddressResource(addressResource)
              .setRequestId(UUID.randomUUID().toString())
              .build();

      client.insertCallable().futureCall(addressRequest).get(30, TimeUnit.SECONDS);

      return Lists.newArrayList(client.list(projectId, region).iterateAll());
    }
  }
}

import uuid

from google.cloud.compute_v1 import AddressesClient
from google.cloud.compute_v1.types import Address


def promote_ephemeral_ip(project_id: str, ephemeral_ip: str, region: str):
    """
    Promote ephemeral IP found on the instance to a static IP.

    Args:
        project_id (str): Project ID.
        ephemeral_ip (str): Ephemeral IP address to promote.
        region (str): Region where the VM and IP is located.
    """
    addresses_client = AddressesClient()

    # Create a new static IP address using existing ephemeral IP
    address_resource = Address(
        name=f"ip-reserved-{uuid.uuid4()}",  # new name for promoted IP address
        region=region,
        address_type="EXTERNAL",
        address=ephemeral_ip,
    )
    operation = addresses_client.insert(
        project=project_id, region=region, address_resource=address_resource
    )
    operation.result()

    print(f"Ephemeral IP {ephemeral_ip} has been promoted to a static IP.")

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	"google.golang.org/api/iterator"

	"cloud.google.com/go/compute/apiv1/computepb"
)

// listRegionalExternal retrieves list external IP addresses in Google Cloud Platform region.
func listRegionalExternal(w io.Writer, projectID, region string) ([]*computepb.Address, error) {
	// projectID := "your_project_id"
	// region := "europe-west3"

	ctx := context.Background()
	// Create the service client.
	addressesClient, err := compute.NewAddressesRESTClient(ctx)
	if err != nil {
		return nil, err
	}
	defer addressesClient.Close()

	// Build the request.
	req := &computepb.ListAddressesRequest{
		Project: projectID,
		Region:  region,
	}

	// List the addresses.
	it := addressesClient.List(ctx, req)

	// Iterate over the results.
	var addresses []*computepb.Address
	for {
		address, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return nil, err
		}
		addresses = append(addresses, address)
	}

	// Print the addresses.
	fmt.Fprint(w, "Fetched addresses: \n")
	for _, address := range addresses {
		fmt.Fprintf(w, "%s\n", *address.Name)
	}

	return addresses, nil
}

// listGlobalExternal retrieves list external global IP addresses in Google Cloud Platform.
func listGlobalExternal(w io.Writer, projectID string) ([]*computepb.Address, error) {
	// projectID := "your_project_id"

	ctx := context.Background()
	// Create the service client.
	addressesClient, err := compute.NewGlobalAddressesRESTClient(ctx)
	if err != nil {
		return nil, err
	}
	defer addressesClient.Close()

	// Build the request.
	req := &computepb.ListGlobalAddressesRequest{
		Project: projectID,
	}

	// List the addresses.
	it := addressesClient.List(ctx, req)

	// Iterate over the results.
	var addresses []*computepb.Address
	for {
		address, err := it.Next()
		if err == iterator.Done {
			break
		}
		if err != nil {
			return nil, err
		}
		addresses = append(addresses, address)
	}

	// Print the addresses.
	fmt.Fprint(w, "Fetched addresses: \n")
	for _, address := range addresses {
		fmt.Fprintf(w, "%s\n", *address.Name)
	}

	return addresses, nil
}

import com.google.cloud.compute.v1.Address;
import com.google.cloud.compute.v1.AddressesClient;
import com.google.cloud.compute.v1.GlobalAddressesClient;
import com.google.cloud.compute.v1.ListAddressesRequest;
import com.google.cloud.compute.v1.ListGlobalAddressesRequest;
import com.google.common.collect.Lists;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeoutException;

public class ListStaticExternalIp {

  public static void main(String[] args)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // Project ID or project number of the Google Cloud project you want to use.
    String projectId = "your-project-id";
    // Region where the VM and IP is located.
    String region = "your-region-id";

    listStaticExternalIp(projectId, region);
  }

  // Lists all static external IP addresses, either regional or global.
  public static List<Address> listStaticExternalIp(String projectId, String region)
          throws IOException {
    // Use regional client if a region is specified
    if (region != null) {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (AddressesClient client = AddressesClient.create()) {
        ListAddressesRequest request = ListAddressesRequest.newBuilder()
                .setProject(projectId)
                .setRegion(region)
                .build();

        return Lists.newArrayList(client.list(request).iterateAll());
      }
    } else {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (GlobalAddressesClient client = GlobalAddressesClient.create()) {
        ListGlobalAddressesRequest request = ListGlobalAddressesRequest.newBuilder()
                .setProject(projectId)
                .build();

        return Lists.newArrayList(client.list(request).iterateAll());
      }
    }
  }
}

from typing import List, Optional

from google.cloud.compute_v1.services.addresses.client import AddressesClient
from google.cloud.compute_v1.services.global_addresses import GlobalAddressesClient
from google.cloud.compute_v1.types import Address


def list_static_ip_addresses(
    project_id: str, region: Optional[str] = None
) -> List[Address]:
    """
    Lists all static external IP addresses, either regional or global.

    Args:
    project_id (str): project ID.
    region (Optional[str]): The region of the IP addresses if regional. None if global.

    Returns:
    List[Address]: A list of Address objects containing details about the requested IPs.
    """
    if region:
        # Use regional client if a region is specified
        client = AddressesClient()
        addresses_iterator = client.list(project=project_id, region=region)
    else:
        # Use global client if no region is specified
        client = GlobalAddressesClient()
        addresses_iterator = client.list(project=project_id)

    return list(addresses_iterator)  # Convert the iterator to a list to return

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	"cloud.google.com/go/compute/apiv1/computepb"
)

// getExternalAddress retrieves the external IP address of the given address.
func getRegionalExternal(w io.Writer, projectID, region, addressName string) (*computepb.Address, error) {
	// projectID := "your_project_id"
	// region := "europe-west3"
	// addressName := "your_address_name"

	ctx := context.Background()
	addressesClient, err := compute.NewAddressesRESTClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("NewAddressesRESTClient: %w", err)
	}
	defer addressesClient.Close()

	req := &computepb.GetAddressRequest{
		Project: projectID,
		Region:  region,
		Address: addressName,
	}

	address, err := addressesClient.Get(ctx, req)
	if err != nil {
		return nil, fmt.Errorf("unable to get address: %w", err)
	}

	fmt.Fprintf(w, "Regional address %s has external IP address: %s\n", addressName, address.GetAddress())

	return address, nil
}

func getGlobalExternal(w io.Writer, projectID, addressName string) (*computepb.Address, error) {

	ctx := context.Background()
	globalAddressesClient, err := compute.NewGlobalAddressesRESTClient(ctx)
	if err != nil {
		return nil, fmt.Errorf("NewGlobalAddressesRESTClient: %w", err)
	}
	defer globalAddressesClient.Close()

	req := &computepb.GetGlobalAddressRequest{
		Project: projectID,
		Address: addressName,
	}

	address, err := globalAddressesClient.Get(ctx, req)
	if err != nil {
		return nil, fmt.Errorf("unable to get address: %w", err)
	}

	fmt.Fprintf(w, "Global address %s has external IP address: %s\n", addressName, address.GetAddress())

	return address, nil
}

import com.google.cloud.compute.v1.Address;
import com.google.cloud.compute.v1.AddressesClient;
import com.google.cloud.compute.v1.GetAddressRequest;
import com.google.cloud.compute.v1.GetGlobalAddressRequest;
import com.google.cloud.compute.v1.GlobalAddressesClient;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeoutException;

public class GetStaticIpAddress {

  public static void main(String[] args)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // Project ID or project number of the Google Cloud project you want to use.
    String projectId = "your-project-id";
    // Region where the VM and IP is located.
    String region = "your-region-id";
    // Name of the address to assign.
    String addressName = "your-addressName";

    getStaticIpAddress(projectId, region, addressName);
  }

  // Retrieves a static external IP address, either regional or global.
  public static Address getStaticIpAddress(String projectId, String region, String addressName)
          throws IOException {
    // Use regional client if a region is specified
    if (region != null) {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (AddressesClient client = AddressesClient.create()) {
        GetAddressRequest request = GetAddressRequest.newBuilder()
                .setProject(projectId)
                .setRegion(region)
                .setAddress(addressName)
                .build();

        return client.get(request);
      }
    } else {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (GlobalAddressesClient client = GlobalAddressesClient.create()) {
        GetGlobalAddressRequest request = GetGlobalAddressRequest.newBuilder()
                .setProject(projectId)
                .setAddress(addressName)
                .build();

        return client.get(request);
      }
    }
  }
}

from typing import Optional

from google.cloud.compute_v1.services.addresses.client import AddressesClient
from google.cloud.compute_v1.services.global_addresses import GlobalAddressesClient
from google.cloud.compute_v1.types import Address


def get_static_ip_address(
    project_id: str, address_name: str, region: Optional[str] = None
) -> Address:
    """
    Retrieves a static external IP address, either regional or global.

    Args:
    project_id (str): project ID.
    address_name (str): The name of the IP address.
    region (Optional[str]): The region of the IP address if it's regional. None if it's global.

    Raises: google.api_core.exceptions.NotFound: in case of address not found

    Returns:
    Address: The Address object containing details about the requested IP.
    """
    if region:
        # Use regional client if a region is specified
        client = AddressesClient()
        address = client.get(project=project_id, region=region, address=address_name)
    else:
        # Use global client if no region is specified
        client = GlobalAddressesClient()
        address = client.get(project=project_id, address=address_name)

    return address

import (
	"context"
	"fmt"
	"io"

	compute "cloud.google.com/go/compute/apiv1"
	"cloud.google.com/go/compute/apiv1/computepb"
)

// releaseRegionalStaticExternal releases a static regional external IP address.
func releaseRegionalStaticExternal(w io.Writer, projectID, region, addressName string) error {
	// projectID := "your_project_id"
	// region := "us-central1"
	// addressName := "your_address_name"

	ctx := context.Background()
	addressesClient, err := compute.NewAddressesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewAddressesRESTClient: %w", err)
	}
	defer addressesClient.Close()

	req := &computepb.DeleteAddressRequest{
		Project: projectID,
		Region:  region,
		Address: addressName,
	}

	op, err := addressesClient.Delete(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to release static external IP address: %w", err)
	}

	if err = op.Wait(ctx); err != nil {
		return fmt.Errorf("unable to wait for the operation: %w", err)
	}

	fmt.Fprintf(w, "Static external IP address released\n")

	return nil
}

// releaseGlobalStaticExternal releases a static global external IP address.
func releaseGlobalStaticExternal(w io.Writer, projectID, addressName string) error {
	// projectID := "your_project_id"
	// addressName := "your_address_name"

	ctx := context.Background()
	addressesClient, err := compute.NewGlobalAddressesRESTClient(ctx)
	if err != nil {
		return fmt.Errorf("NewGlobalAddressesRESTClient: %w", err)
	}
	defer addressesClient.Close()

	req := &computepb.DeleteGlobalAddressRequest{
		Project: projectID,
		Address: addressName,
	}

	op, err := addressesClient.Delete(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to release static external IP address: %w", err)
	}

	if err = op.Wait(ctx); err != nil {
		return fmt.Errorf("unable to wait for the operation: %w", err)
	}

	fmt.Fprintf(w, "Static external IP address released\n")

	return nil
}

import com.google.cloud.compute.v1.AddressesClient;
import com.google.cloud.compute.v1.DeleteAddressRequest;
import com.google.cloud.compute.v1.DeleteGlobalAddressRequest;
import com.google.cloud.compute.v1.GlobalAddressesClient;
import com.google.cloud.compute.v1.Operation;
import java.io.IOException;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class ReleaseStaticAddress {

  public static void main(String[] args)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample.
    // Project ID or project number of the Google Cloud project you want to use.
    String projectId = "your-project-id";
    // The region to reserve the IP address in, if regional. Must be None if global
    String region = "your-region =";
    // Name of the address to release.
    String addressName = "your-addressName";

    releaseStaticAddress(projectId, addressName, region);
  }

  // Releases a static external IP address that is currently reserved.
  // This action requires that the address is not being used by any forwarding rule.
  public static void releaseStaticAddress(String projectId, String addressName, String region)
          throws IOException, ExecutionException, InterruptedException, TimeoutException {
    Operation operation;
    // Use global client if no region is specified
    if (region == null) {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (GlobalAddressesClient client = GlobalAddressesClient.create()) {
        DeleteGlobalAddressRequest request = DeleteGlobalAddressRequest.newBuilder()
                .setProject(projectId)
                .setAddress(addressName)
                .build();

        operation = client.deleteCallable().futureCall(request).get(30, TimeUnit.SECONDS);
      }
    } else {
      // Initialize client that will be used to send requests. This client only needs to be created
      // once, and can be reused for multiple requests.
      try (AddressesClient client = AddressesClient.create()) {
        DeleteAddressRequest request = DeleteAddressRequest.newBuilder()
                .setProject(projectId)
                .setRegion(region)
                .setAddress(addressName)
                .build();

        operation = client.deleteCallable().futureCall(request).get(30, TimeUnit.SECONDS);
      }
    }
    if (operation.hasError()) {
      System.out.printf("Can't release external IP address '%s'. Caused by : %s",
              addressName, operation.getError());
    }
    System.out.printf("External IP address '%s' released successfully.", addressName);
  }
}

from typing import Optional

from google.cloud.compute_v1.services.addresses.client import AddressesClient
from google.cloud.compute_v1.services.global_addresses import GlobalAddressesClient


def release_external_ip_address(
    project_id: str,
    address_name: str,
    region: Optional[str] = None,
) -> None:
    """
    Releases a static external IP address that is currently reserved.
    This action requires that the address is not being used by any forwarding rule.

    Args:
        project_id (str): project ID.
        address_name (str): name of the address to release.
        region (Optional[str]): The region to reserve the IP address in, if regional. Must be None if global.


    """
    if not region:  # global IP address
        client = GlobalAddressesClient()
        operation = client.delete(project=project_id, address=address_name)
    else:  # regional IP address
        client = AddressesClient()
        operation = client.delete(
            project=project_id, region=region, address=address_name
        )

    operation.result()
    print(f"External IP address '{address_name}' released successfully.")