Terraform boilerplate for Kubernetes cluster

Terraform config that creates a basic kubernetes cluster that host a nginx server. This project is meant to be used as a boilerplate only.

HTTP(S) -> Public IP -> Ingress -> Service -> Deployment

Requirement

• Install terraform

Features

• Autoscaling of node
• Autoscaling of pods
• SSL certificate for domain

Steps

Step 1: Get SSL Certificate

You can use existing SSL Certificate or create using Letsencrypt ssl certificate generator. Copy it in ./certificate folder

• ./certificate/fullchain.pem
• ./certificate/privkey.pem

Step 2: Create IAM profile

Visit Google Console to create an IAM profile. While creating the profile, it lets you download gcloud-service.json file. Place it in root folder.

Step 3: Customize your cluster

Create terraform.tfvars on root folder. For example.

gcp_project                      = "gcp-project-1234"
dev_cluster_master_auth_username = "cluster_username"
dev_cluster_master_auth_password = "cluster_password"

Step 4: Change the domain

Change host in network.tf.

Step 5: Push to Google could

Run these commands

terraform init
terraform plan
terraform apply

Step 6: Update DNS

Update DNS config of the domain by added a new A record with the ip printed while running terraform apply on step 5.