1. Answers
  2. Associating a VPC Endpoint with a Specific Route Table

How do I associate a VPC endpoint with a specific route table?

In this guide, we will demonstrate how to associate an AWS VPC endpoint with a specific route table using Pulumi. This is useful for directing traffic from a VPC endpoint to the appropriate route table, ensuring proper routing within your VPC.

Steps:

  1. Create a VPC.
  2. Create a subnet within the VPC.
  3. Create a route table and associate it with the subnet.
  4. Create a VPC endpoint.
  5. Associate the VPC endpoint with the route table.
import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Step 1: Create a VPC
const vpc = new aws.ec2.Vpc("myVpc", {
    cidrBlock: "10.0.0.0/16",
    tags: {
        Name: "myVpc",
    },
});

// Step 2: Create a subnet within the VPC
const subnet = new aws.ec2.Subnet("mySubnet", {
    vpcId: vpc.id,
    cidrBlock: "10.0.1.0/24",
    tags: {
        Name: "mySubnet",
    },
});

// Step 3: Create a route table and associate it with the subnet
const routeTable = new aws.ec2.RouteTable("myRouteTable", {
    vpcId: vpc.id,
    tags: {
        Name: "myRouteTable",
    },
});

const routeTableAssociation = new aws.ec2.RouteTableAssociation("myRouteTableAssociation", {
    subnetId: subnet.id,
    routeTableId: routeTable.id,
});

// Step 4: Create a VPC endpoint
const vpcEndpoint = new aws.ec2.VpcEndpoint("myVpcEndpoint", {
    vpcId: vpc.id,
    serviceName: "com.amazonaws.us-west-2.s3", // Replace with the appropriate service name
    vpcEndpointType: "Gateway",
    routeTableIds: [routeTable.id],
    tags: {
        Name: "myVpcEndpoint",
    },
});

// Step 5: Associate the VPC endpoint with the route table
const vpcEndpointRouteTableAssociation = new aws.ec2.VpcEndpointRouteTableAssociation("myVpcEndpointRouteTableAssociation", {
    routeTableId: routeTable.id,
    vpcEndpointId: vpcEndpoint.id,
});

// Export the VPC ID and Subnet ID
export const vpcId = vpc.id;
export const subnetId = subnet.id;
export const routeTableId = routeTable.id;
export const vpcEndpointId = vpcEndpoint.id;

Key Points:

  • VPC Creation: We start by creating a VPC to host our resources.
  • Subnet Creation: A subnet is created within the VPC to allocate IP addresses.
  • Route Table: A route table is created and associated with the subnet to manage routing.
  • VPC Endpoint: A VPC endpoint is created to connect to an AWS service.
  • Association: The VPC endpoint is associated with the route table to ensure traffic is routed correctly.

Summary

In this guide, we successfully created a VPC, a subnet, a route table, and a VPC endpoint. We then associated the VPC endpoint with the route table using Pulumi, ensuring that traffic is routed through the specified route table. This setup is essential for managing and directing traffic within your AWS infrastructure.

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