FROM ghcr.io/coder/coder:latest

USER root

RUN apk add curl unzip

# Create directory for the Terraform CLI (and assets)
RUN mkdir -p /opt/terraform

# Terraform is already included in the official Coder image.
# See https://github.com/coder/coder/blob/main/scripts/Dockerfile.base#L15
# If you need to install a different version of Terraform, you can do so here.
# The below step is optional if you wish to keep the existing version.
# See https://github.com/coder/coder/blob/main/provisioner/terraform/install.go#L23-L24
# for supported Terraform versions.
ARG TERRAFORM_VERSION=1.5.6
RUN apk update && \
    apk del terraform && \
    curl -LOs https://releases.hashicorp.com/terraform/${TERRAFORM_VERSION}/terraform_${TERRAFORM_VERSION}_linux_amd64.zip \
    && unzip -o terraform_${TERRAFORM_VERSION}_linux_amd64.zip \
    && mv terraform /opt/terraform \
    && rm terraform_${TERRAFORM_VERSION}_linux_amd64.zip
ENV PATH=/opt/terraform:${PATH}

# Additionally, a Terraform mirror needs to be configured
# to download the Terraform providers used in Coder templates.
# There are two options:

# Option 1) Use a filesystem mirror.
#  We can seed this at build-time or by mounting a volume to
#  /opt/terraform/plugins in the container.
#  https://developer.hashicorp.com/terraform/cli/config/config-file#filesystem_mirror
#  Be sure to add all the providers you use in your templates to /opt/terraform/plugins

RUN mkdir -p /home/coder/.terraform.d/plugins/registry.terraform.io
ADD filesystem-mirror-example.tfrc /home/coder/.terraformrc

# Optionally, we can "seed" the filesystem mirror with common providers.
# Comment out lines 40-49 if you plan on only using a volume or network mirror:
WORKDIR /home/coder/.terraform.d/plugins/registry.terraform.io
ARG CODER_PROVIDER_VERSION=0.12.1
RUN echo "Adding coder/coder v${CODER_PROVIDER_VERSION}" \
    && mkdir -p coder/coder && cd coder/coder \
    && curl -LOs https://github.com/coder/terraform-provider-coder/releases/download/v${CODER_PROVIDER_VERSION}/terraform-provider-coder_${CODER_PROVIDER_VERSION}_linux_amd64.zip
ARG DOCKER_PROVIDER_VERSION=3.0.2
RUN echo "Adding kreuzwerker/docker v${DOCKER_PROVIDER_VERSION}" \
    && mkdir -p kreuzwerker/docker && cd kreuzwerker/docker \
    && curl -LOs https://github.com/kreuzwerker/terraform-provider-docker/releases/download/v${DOCKER_PROVIDER_VERSION}/terraform-provider-docker_${DOCKER_PROVIDER_VERSION}_linux_amd64.zip
ARG KUBERNETES_PROVIDER_VERSION=2.23.0
RUN echo "Adding kubernetes/kubernetes v${KUBERNETES_PROVIDER_VERSION}" \
    && mkdir -p hashicorp/kubernetes && cd hashicorp/kubernetes \
    && curl -LOs https://releases.hashicorp.com/terraform-provider-kubernetes/${KUBERNETES_PROVIDER_VERSION}/terraform-provider-kubernetes_${KUBERNETES_PROVIDER_VERSION}_linux_amd64.zip
ARG AWS_PROVIDER_VERSION=5.19.0
RUN echo "Adding aws/aws v${AWS_PROVIDER_VERSION}" \
    && mkdir -p aws/aws && cd aws/aws \
    && curl -LOs https://releases.hashicorp.com/terraform-provider-aws/${AWS_PROVIDER_VERSION}/terraform-provider-aws_${AWS_PROVIDER_VERSION}_linux_amd64.zip

RUN chown -R coder:coder /home/coder/.terraform*
WORKDIR /home/coder

# Option 2) Use a network mirror.
#  https://developer.hashicorp.com/terraform/cli/config/config-file#network_mirror
#  Be sure uncomment line 60 and edit network-mirror-example.tfrc to
#  specify the HTTPS base URL of your mirror.

# ADD network-mirror-example.tfrc /home/coder/.terraformrc

USER coder

# Use the .terraformrc file to inform Terraform of the locally installed providers.
ENV TF_CLI_CONFIG_FILE=/home/coder/.terraformrc

# filesystem-mirror-example.tfrc
provider_installation {
  filesystem_mirror {
    path = "/home/coder/.terraform.d/plugins"
  }
}

# network-mirror-example.tfrc
provider_installation {
  network_mirror {
    url = "https://terraform.example.com/providers/"
  }
}

mkdir $HOME/plugins

vim docker-compose.yaml

# docker-compose.yaml
version: "3.9"
services:
  coder:
    image: registry.example.com/coder:latest
    volumes:
      - ./plugins:/opt/terraform/plugins
    # ...
  environment:
    CODER_TELEMETRY_ENABLE: "false" # Disable telemetry
    CODER_BLOCK_DIRECT: "true" # force SSH traffic through control plane's DERP proxy
    CODER_DERP_SERVER_STUN_ADDRESSES: "disable" # Only use relayed connections
    CODER_UPDATE_CHECK: "false" # Disable automatic update checks
  database:
    image: registry.example.com/postgres:13
    # ...

# values.yaml
coder:
  image:
    repo: "registry.example.com/coder"
    tag: "latest"
  env:
    # Disable telemetry
    - name: "CODER_TELEMETRY_ENABLE"
      value: "false"
    # Disable automatic update checks
    - name: "CODER_UPDATE_CHECK"
      value: "false"
    # force SSH traffic through control plane's DERP proxy
    - name: CODER_BLOCK_DIRECT
      value: "true"
    # Only use relayed connections
    - name: "CODER_DERP_SERVER_STUN_ADDRESSES"
      value: "disable"
    # You must set up an external PostgreSQL database
    - name: "CODER_PG_CONNECTION_URL"
      value: ""
# ...