Terraform templates for Kubernetes on AWS and GCP

AWS

• provider.tf
  • declare these scripts run on AWS
• vpc.tf
  • define virtual private cloud
• subnet.tf
  • define public and private subnets and gateways
• cluster.tf
  • set up k8s control plane
• node_group.tf
  • run pods/containers on EC2
• addon.tf
  • set CNI (container network interface) up, not to use proxy/nat
• iam_role.tf
  • assign roles to cluster and node group to let them access and control components in VPC
• security_group.tf
  • two security groups are defined, but not used yet.

GCP

• provider.tf
  • declare these scripts run on GCP
• vpc.tf
  • define project on GCP
• subnet.tf
  • define subnets
• router_nat.tf
  • define nat router for private nodes
• cluster.tf
  • set up k8s control plane
• node_pool.tf
  • build nodes to run pods/containers

Docker

• apache2_k8s/Dockerfile
  • a Docker template to run Apache2 with port 80 to serve a default index.html in Ubuntu

Helm

• apache2_k8s/
  • a Helm template to deploy a pod with the Docker image above, a service of NodePort, and an ingress as an external load balancer.