Using Terraform to Provision a YugabyteDB Cluster

Using Terraform to Provision a YugabyteDB Cluster

Learn about the Terraform modules for provisioning YugabyteDB on different cloud providers, with a focus on AWS. See how to provision a cluster, manage nodes, understand different configuration options, and more.

This blog post is written by guest author [Bhavin Gandhi_](https://www.linkedin.com/in/bhavin192/), Software Engineer at InfraCloud Technologies, Inc. [InfraCloud_](https://www.infracloud.io/)_ helps startups, SMBs, and enterprises scale by adopting cloud-native technologies._

HashiCorp’s Terraform is an infrastructure as code (IaC) tool as well as a framework. It is used for writing the infrastructure configuration in a declarative way using HashiCorp Configuration Language (HCL) or JSON. It has now become a preferred tool when it comes to provisioning infrastructure on different cloud platforms. This is mainly due to the wide range of supported providers and the extensible nature of the tool itself. One can write provider plugins, modules to extend Terraform.

In this blog post, we will be looking into the Terraform modules for provisioning YugabyteDB on different cloud providers. We will be focusing mostly on the terraform-aws-yugabyte module which is specific to Amazon Web Services (AWS) while pointing out minor differences in other modules. We will cover the topics including provisioning a cluster, managing nodes, understanding different configuration options, and more.

Summary of sections in this post

Provisioning a cluster on AWS

Let’s create a 3 node cluster using the terraform-aws-yugabyte module. Before starting with that, make sure you have installed Terraform on your machine. Follow the instructions given here. We are using Terraform v0.13.3 in this post.

Create a new Terraform configuration file deploy-yugabytedb.tf with the following contents:

module "yugabyte-db-cluster" {
  source = "github.com/yugabyte/terraform-aws-yugabyte"

  region_name = "us-east-1"
  vpc_id = "<vpc id>"
  availability_zones = ["us-east-1a", "us-east-1b", "us-east-1c"]
  subnet_ids = ["<subnet id from 1a>", "<subnet id from 1b>", "<subnet id from 1c>"]
  ssh_keypair = "yb-cluster-key"
  ssh_private_key = "/opt/keys/yb-cluster-key.pem"

  cluster_name = "yb-cluster"
  replication_factor = "3"
  num_instances = "3"
}

output "outputs" {
  value = module.yugabyte-db-cluster
}

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