GreenMail on Kubernetes via Terraform

Example for running GreenMail containerized on k8s via Terraform Kubernetes provider.

Quickstart

1. Optionally start local Minikube

   An easy way to test the setup is to use a local Minikube k8s cluster, e.g. via

   minikube start --extra-config=apiserver.service-node-port-range=1025-9999  
   

2. Initialize terraform (once only, downloads k8s provider etc.)

   terraform init // Once only for TF setup
   

3. Create GreenMail k8s namespace, pod and service example

   Optionally reconfigure k8s namespace and service port mappings in main.tf.

   terraform apply // Creates POD with GreenMail container and service
   kubectl describe pods tf-pod-greenmail --namespace tf-ns-greenmail
   kubectl describe services tf-service-greenmail --namespace tf-ns-greenmail
   kubectl logs --namespace tf-ns-greenmail tf-pod-greenmail // Get GreenMail log output
   minikube service list  // Get local, external IP of GreenMail
   

   As a smoke test you can e.g. invoke the GreenMail API (defaults to port 8080) or configure your favorite mail client.

4. Cleanup

   terraform destroy // Removed GreenMail namespace, pod and service example
   minikube stop