gke-cluster-configuration

Terraform configures private GKE clusters by provisioning private control planes with limited API exposure and encrypted etcd. This approach reproducibly enforces secure infrastructure baselines across environments using infrastructure as code.

Workload Identity provides pod-to-GCP authentication without exposing service account keys. You can configure it in GKE using Terraform to bind Kubernetes service accounts to IAM identities for secure cloud resource access.

Binary Authorization works with Shielded Nodes in GKE to enforce image verification before deployment. Terraform provisions both features together to ensure only trusted container images run on secured compute infrastructure.

Deploying secure GKE clusters with Terraform requires Terraform 1.0 or higher and the gcloud CLI. You must have an existing GCP project with appropriate IAM permissions configured before applying the infrastructure code.

Terraform provides reproducible, IaC-driven deployments for GKE security baselines across multiple environments. Unlike manual gcloud commands, it ensures consistent private networking, Workload Identity, and Binary Authorization configurations.