VPC ファイアウォール ルールを使用する

resource "google_compute_firewall" "rules" {
  name        = "my-firewall-rule"
  network     = "default"
  description = "Creates firewall rule targeting tagged instances"

  allow {
    protocol = "tcp"
    ports    = ["80", "443"]
  }

  source_ranges = ["0.0.0.0/0"]
  target_tags   = ["web"]
}

using Google.Cloud.Compute.V1;
using System.Threading.Tasks;

public class CreateFirewallRuleAsyncSample
{
    public async Task CreateFirewallRuleAsync(
        // TODO(developer): Set your own default values for these parameters or pass different values when calling this method.
        string projectId = "your-project-id",
        string firewallRuleName = "my-test-firewall-rule",
        // Name of the network the rule will be applied to. Some available name formats:
        // projects/{project_id}/global/networks/{network}
        // global/networks/{network}
        string networkName = "global/networks/default")
    {
        Firewall firewallRule = new Firewall
        {
            Name = firewallRuleName,
            Network = networkName,
            Direction = ComputeEnumConstants.Firewall.Direction.Ingress,
            Allowed =
            {
                new Allowed
                {
                    Ports = { "80", "443" },
                    IPProtocol = "tcp"
                }
            },
            TargetTags = { "web" },
            Description = "Allows TCP traffic on port 80 and 443 from anywhere."
        };

        // Note that the default value of priority for the firewall API is 1000.
        // If you check the value of firewallRule.Priority at this point it
        // will be equal to 0, however it is not treated as "set" by the library, and thus
        // the default will be applied to the new rule. If you want to create a rule that
        // has priority == 0, you'll need to explicitly set it: firewallRule.Priority = 0.
        // You can use the firewallRule.HasPriority property to check if the priority has been set.
        // You can use the firewallRule.ClearPriority() method to unset the priority.

        // Initialize client that will be used to send requests. This client only needs to be created
        // once, and can be reused for multiple requests.
        FirewallsClient client = await FirewallsClient.CreateAsync();

        // Create the firewall rule in the specified project.
        var firewallRuleCreation = await client.InsertAsync(projectId, firewallRule);

        // Wait for the operation to complete using client-side polling.
        await firewallRuleCreation.PollUntilCompletedAsync();
    }
}

import (
	"context"
	"fmt"
	"io"

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

// createFirewallRule creates a firewall rule allowing for incoming HTTP and HTTPS access from the entire Internet.
func createFirewallRule(w io.Writer, projectID, firewallRuleName, networkName string) error {
	// projectID := "your_project_id"
	// firewallRuleName := "europe-central2-b"
	// networkName := "global/networks/default"

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

	firewallRule := &computepb.Firewall{
		Allowed: []*computepb.Allowed{
			{
				IPProtocol: proto.String("tcp"),
				Ports:      []string{"80", "443"},
			},
		},
		Direction: proto.String(computepb.Firewall_INGRESS.String()),
		Name:      &firewallRuleName,
		TargetTags: []string{
			"web",
		},
		Network:     &networkName,
		Description: proto.String("Allowing TCP traffic on port 80 and 443 from Internet."),
	}

	// Note that the default value of priority for the firewall API is 1000.
	// If you check the value of `firewallRule.GetPriority()` at this point it
	// will be equal to 0, however it is not treated as "set" by the library and thus
	// the default will be applied to the new rule. If you want to create a rule that
	// has priority == 0, you need to explicitly set it so:

	// firewallRule.Priority = proto.Int32(0)

	req := &computepb.InsertFirewallRequest{
		Project:          projectID,
		FirewallResource: firewallRule,
	}

	op, err := firewallsClient.Insert(ctx, req)
	if err != nil {
		return fmt.Errorf("unable to create firewall rule: %w", err)
	}

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

	fmt.Fprintf(w, "Firewall rule created\n")

	return nil
}

import com.google.cloud.compute.v1.Allowed;
import com.google.cloud.compute.v1.Firewall;
import com.google.cloud.compute.v1.Firewall.Direction;
import com.google.cloud.compute.v1.FirewallsClient;
import com.google.cloud.compute.v1.InsertFirewallRequest;
import java.io.IOException;
import java.util.UUID;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;

public class CreateFirewallRule {

  public static void main(String[] args)
      throws IOException, ExecutionException, InterruptedException, TimeoutException {
    // TODO(developer): Replace these variables before running the sample
    /* project: project ID or project number of the Cloud project you want to use.
       firewallRuleName: name of the rule that is created.
       network: name of the network the rule will be applied to. Available name formats:
        * https://www.googleapis.com/compute/v1/projects/{project_id}/global/networks/{network}
        * projects/{project_id}/global/networks/{network}
        * global/networks/{network} */
    String project = "your-project-id";
    String firewallRuleName = "firewall-rule-name-" + UUID.randomUUID();
    String network = "global/networks/default";

    // The rule will be created with default priority of 1000.
    createFirewall(project, firewallRuleName, network);
  }

  // Creates a simple firewall rule allowing for incoming HTTP and 
  // HTTPS access from the entire Internet.
  public static void createFirewall(String project, String firewallRuleName, String network)
      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 `firewallsClient.close()` method on the client to safely
       clean up any remaining background resources. */
    try (FirewallsClient firewallsClient = FirewallsClient.create()) {

      // The below firewall rule is created in the default network.
      Firewall firewallRule = Firewall.newBuilder()
          .setName(firewallRuleName)
          .setDirection(Direction.INGRESS.toString())
          .addAllowed(
              Allowed.newBuilder().addPorts("80").addPorts("443").setIPProtocol("tcp").build())
          .addSourceRanges("0.0.0.0/0")
          .setNetwork(network)
          .addTargetTags("web")
          .setDescription("Allowing TCP traffic on port 80 and 443 from Internet.")
          .build();

      /* Note that the default value of priority for the firewall API is 1000.
         If you check the value of `firewallRule.getPriority()` at this point it
         will be equal to 0, however it is not treated as "set" by the library and thus
         the default will be applied to the new rule. If you want to create a rule that
         has priority == 0, you'll need to explicitly set it so: setPriority(0) */

      InsertFirewallRequest insertFirewallRequest = InsertFirewallRequest.newBuilder()
          .setFirewallResource(firewallRule)
          .setProject(project).build();

      firewallsClient.insertAsync(insertFirewallRequest).get(3, TimeUnit.MINUTES);

      System.out.println("Firewall rule created successfully -> " + firewallRuleName);
    }
  }
}

/**
 * TODO(developer): Uncomment and replace these variables before running the sample.
 */
// const projectId = 'YOUR_PROJECT_ID';
// const firewallRuleName = 'YOUR_FIREWALL_RULE_NAME'
// const networkName = 'global/networks/default'

const compute = require('@google-cloud/compute');
const computeProtos = compute.protos.google.cloud.compute.v1;

async function createFirewallRule() {
  const firewallsClient = new compute.FirewallsClient();
  const operationsClient = new compute.GlobalOperationsClient();

  const firewallRule = new computeProtos.Firewall();
  firewallRule.name = firewallRuleName;
  firewallRule.direction = 'INGRESS';
  firewallRule.allowed = [
    {
      IPProtocol: 'tcp',
      ports: ['80', '443'],
    },
  ];
  firewallRule.targetTags = ['web'];
  firewallRule.network = networkName;
  firewallRule.description =
    'Allowing TCP traffic on port 80 and 443 from Internet.';

  // Note that the default value of priority for the firewall API is 1000.
  // If you check the value of `firewallRule.priority` at this point it
  // will be equal to null, however it is not treated as "set" by the library and thus
  // the default will be applied to the new rule. If you want to create a rule that
  // has priority == 0, you need to explicitly set it so:

  // firewallRule.priority = 0

  const [response] = await firewallsClient.insert({
    project: projectId,
    firewallResource: firewallRule,
  });
  let operation = response.latestResponse;

  // Wait for the create operation to complete.
  while (operation.status !== 'DONE') {
    [operation] = await operationsClient.wait({
      operation: operation.name,
      project: projectId,
    });
  }

  console.log('Firewall rule created');
}

createFirewallRule();