ialejandro / terraform-gke

Deploy GKE with Terraform

Terraform GKE deploy

Documentation

• Kubernetes provider
• Google provider
• GKE module
• GKE Release versions

Requirements

• Terraform: >= 0.13, < 0.14
• Generate service-account in GCP
• The VPC must be exists
• The subnets must be exists and ip ranges (pods and services)

First steps!

1. Create bucket GCS to save .tfstate
2. Modify config.tf with properly bucket
3. Download service-account and export GOOGLE_APPLICATION_CREDENTIALS=<path-credendtial>
4. Modify gke.auto.tfvars with your values
5. Install all dependencies and providers: terraform init
6. Deploy: terraform apply

Files

• config.tf: providers, requirements and backend for Terraform
• gke.auto.tfvars: values for deployment
• main.tf: main file with GKE resource
• outputs.tf: output resources
• variables.tf: declare all variables with default values

Default values

# GKE
## GENERAL
project_id       = "CHANGE-ME"
gke_cluster_name = "cluster-gke"
gke_version      = "latest"

## WORKERS
gke_node_pool_name         = "default"
gke_node_pool_machine_type = "e2-medium"
gke_node_pool_min_count    = 1
gke_node_pool_max_count    = 1
gke_node_pool_volume_size  = 100

# NETWORK
vpc               = "my-vpc"
subnet            = "my-subnet"
ip_range_pods     = "pods"
ip_range_services = "services"

Tests

• (Average) Complete deployment: ~10 minutes