Initial release

The Terraformer is a tool that can execute Terraform configuration and is designed to run as a pod inside a Kubernetes cluster. The main.tf, variables.tf, terraform.tfvars and terraform.tfstate files are expected to be stored as configmaps/secrets and mounted into the pods. The Terraformer is able to run terraform validate|plan|apply|destroy and will update the state configmap itself by using the mounted Kubernetes service account.
Usually, one will run terraform validate|plan within a single pod and terraform apply|destroy as a job in order to establish retry logic.

Docker image: eu.gcr.io/gardener-project/gardener/terraformer:0.1.0