tf-gke-readme.md

Terraform Module to Provision a GKE Cluster with istio enabled

pre-requisites

• Gcloud credentials json file
• Terraform
• Helm

Variables to include

region

Region in which the GKE cluster will be provisioned

creds_file_path

path to creds.json files for gcloud service account, feel free to update provider as per your requirment

project_id

ID of Gcloud Project

cluster_name

User Defined Name given to the Cluster

machine_type

Machine Type to be used for the Node Pool

gke_num_nodes

Number of Nodes in the Node Pool

node_locations

a list of zones within the region to provsion nodes

Sample terraform.tfvars file

creds_file_path = "./creds.json"

project_id = "altair-330820"

region = "us-east1"

cluster_name = "altair-gke"

machine_type = "e2-medium"

num_of_nodes_per_location = 1

node_locations = ["us-east1-b", "us-east1-c"]

Running

• Ensure all prerequisites are fulfilled
• create a file named terraform.tfvars
• Fill the tfvars file as specified here
• Run these Commands

terraform init

terrform validate

terraform apply

• Have a look at all the resources that terraform shows in the apply command and type 'yes' to deploy the given cluster

• Verify cluster creation and istio configuration either through the gcloud console or CLI