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Creating a Route 53 Hosted Zone

Overview

This short guide will run through the process of creating a Route 53 Hosted Zone through Terraform for your environment.

Pre-Requisites

This guide assumes you have an environment already created in the Live-1 cluster and defined in the cloud-platform-environments repository.

Terraform files

Copy the Terraform resource code below and save it into the respective 2 files in the [your namespace]/resources directory in the cloud-platform-environments repository:

  • main.tf
  • route53.tf
  • variables.tf

main.tf

terraform {
  backend "s3" {}
}

provider "aws" {
  region = "eu-west-2"
}

Note: If you already have that file defined in your environment, do not recreate it.

variable.tf

This file declares the variables fields utilisised in the route53.tf file below

Fill in the variable namespace field below with your existing kubernetes namespace.

variable "namespace" {
  default = "YOUR KUBERNETES NAMESPACE GOES HERE"
}

variable "business-unit" {
  default = "example-bu"
}

variable "team_name" {
  default = "example-team-name"
}

variable "application" {
  default = "example-app"
}

variable "environment-name" {
  default = "dev"
}

variable "is-production" {
  default = "false"
}

variable "infrastructure-support" {
  default     = "example@example.com"
  }

variable "owner" {
  default     = "example-owner"
  }

Note: If you already have that file defined in your environment, do not recreate it

route53.tf

Fill in the name field below with your domain name.

resource "aws_route53_zone" "example_team_route53_zone" {
  name = "YOUR DOMAIN GOES HERE"

  tags = {
    team_name              = var.team_name
    business-unit          = var.business-unit
    application            = var.application
    is-production          = var.is-production
    environment-name       = var.environment-name
    owner                  = var.owner    
    infrastructure-support = var.infrastructure-support
    namespace              = var.namespace
  }
}

resource "kubernetes_secret" "example_route53_zone_sec" {
  metadata {
    name      = "example-route53-zone-output"
    namespace = var.namespace
  }

  data = {
    zone_id   = aws_route53_zone.example_team_route53_zone.zone_id
  }
}

Creating the resource

Make sure to replace the placeholders and example values above with relevant ones. If you are referring from variables in variables.tf, replace with var.VARIABLE NAME. Commit your changes to a branch and raise a pull request. Once approved, you can merge and the changes will be applied. Shortly after, to confirm the zone has been created, you should be able to access the Zone_ID as Secret on kubernetes in your namespace.

Support ticket

Please raise a support ticket with the Cloud Platform.

Provide them with the domain name, the Cloud Platform team will finalize the process by creating a matching NS record in the DSD account.

Add DNS records to a route53 zone

You can add DNS records for the zone you created, using the aws_route53_record terraform resource.

Example below, will add a record set of type “CNAME” to the route53 zone.

resource "aws_route53_record" "add_cname_email" {
  name    = "YOUR DOMAIN GOES HERE"
  zone_id = aws_route53_zone.example_team_route53_zone.zone_id
  type    = "CNAME"
  records = ["test.org"]
  ttl     = "300"
}

Follow the example-usage, to create different type of record sets, using aws_route53_record resource.

This page was last reviewed on 18 May 2021. It needs to be reviewed again on 18 August 2021 .
This page was set to be reviewed before 18 August 2021. This might mean the content is out of date.