coder/.github/workflows/dogfood.yaml

name: dogfood

on:
  push:
    branches:
      - main
    paths:
      - "dogfood/**"
      - ".github/workflows/dogfood.yaml"
      - "flake.lock"
      - "flake.nix"
  pull_request:
    paths:
      - "dogfood/**"
      - ".github/workflows/dogfood.yaml"
      - "flake.lock"
      - "flake.nix"
  workflow_dispatch:

permissions:
  contents: read

jobs:
  build_image:
    if: github.actor != 'dependabot[bot]' # Skip Dependabot PRs
    runs-on: ${{ github.repository_owner == 'coder' && 'depot-ubuntu-22.04-4' || 'ubuntu-latest' }}
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@f4a75cfd619ee5ce8d5b864b0d183aff3c69b55a # v2.13.1
        with:
          egress-policy: audit

      - name: Checkout
        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false

      - name: Setup Nix
        uses: nixbuild/nix-quick-install-action@1f095fee853b33114486cfdeae62fa099cda35a9 # v33
        with:
          # Pinning to 2.28 here, as Nix gets a "error: [json.exception.type_error.302] type must be array, but is string"
          # on version 2.29 and above.
          nix_version: "2.28.4"

      - uses: nix-community/cache-nix-action@135667ec418502fa5a3598af6fb9eb733888ce6a # v6.1.3
        with:
          # restore and save a cache using this key
          primary-key: nix-${{ runner.os }}-${{ hashFiles('**/*.nix', '**/flake.lock') }}
          # if there's no cache hit, restore a cache by this prefix
          restore-prefixes-first-match: nix-${{ runner.os }}-
          # collect garbage until Nix store size (in bytes) is at most this number
          # before trying to save a new cache
          # 1G = 1073741824
          gc-max-store-size-linux: 5G
          # do purge caches
          purge: true
          # purge all versions of the cache
          purge-prefixes: nix-${{ runner.os }}-
          # created more than this number of seconds ago relative to the start of the `Post Restore` phase
          purge-created: 0
          # except the version with the `primary-key`, if it exists
          purge-primary-key: never

      - name: Get branch name
        id: branch-name
        uses: tj-actions/branch-names@5250492686b253f06fa55861556d1027b067aeb5 # v9.0.2

      - name: "Branch name to Docker tag name"
        id: docker-tag-name
        run: |
          # Replace / with --, e.g. user/feature => user--feature.
          tag=${BRANCH_NAME//\//--}
          echo "tag=${tag}" >> "$GITHUB_OUTPUT"
        env:
          BRANCH_NAME: ${{ steps.branch-name.outputs.current_branch }}

      - name: Set up Depot CLI
        uses: depot/setup-action@b0b1ea4f69e92ebf5dea3f8713a1b0c37b2126a5 # v1.6.0

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@e468171a9de216ec08956ac3ada2f0791b6bd435 # v3.11.1

      - name: Login to DockerHub
        if: github.ref == 'refs/heads/main'
        uses: docker/login-action@5e57cd118135c172c3672efd75eb46360885c0ef # v3.6.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_PASSWORD }}

      - name: Build and push Non-Nix image
        uses: depot/build-push-action@9785b135c3c76c33db102e45be96a25ab55cd507 # v1.16.2
        with:
          project: b4q6ltmpzh
          token: ${{ secrets.DEPOT_TOKEN }}
          buildx-fallback: true
          context: "{{defaultContext}}:dogfood/coder"
          pull: true
          save: true
          push: ${{ github.ref == 'refs/heads/main' }}
          tags: "codercom/oss-dogfood:${{ steps.docker-tag-name.outputs.tag }},codercom/oss-dogfood:latest"

      - name: Build Nix image
        run: nix build .#dev_image

      - name: Push Nix image
        if: github.ref == 'refs/heads/main'
        run: |
          docker load -i result

          CURRENT_SYSTEM=$(nix eval --impure --raw --expr 'builtins.currentSystem')

          docker image tag "codercom/oss-dogfood-nix:latest-$CURRENT_SYSTEM" "codercom/oss-dogfood-nix:${DOCKER_TAG}"
          docker image push "codercom/oss-dogfood-nix:${DOCKER_TAG}"

          docker image tag "codercom/oss-dogfood-nix:latest-$CURRENT_SYSTEM" "codercom/oss-dogfood-nix:latest"
          docker image push "codercom/oss-dogfood-nix:latest"
        env:
          DOCKER_TAG: ${{ steps.docker-tag-name.outputs.tag }}

  deploy_template:
    needs: build_image
    runs-on: ubuntu-latest
    permissions:
      # Necessary for GCP authentication (https://github.com/google-github-actions/setup-gcloud#usage)
      id-token: write
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@f4a75cfd619ee5ce8d5b864b0d183aff3c69b55a # v2.13.1
        with:
          egress-policy: audit

      - name: Checkout
        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
        with:
          persist-credentials: false

      - name: Setup Terraform
        uses: ./.github/actions/setup-tf

      - name: Authenticate to Google Cloud
        uses: google-github-actions/auth@7c6bc770dae815cd3e89ee6cdf493a5fab2cc093 # v3.0.0
        with:
          workload_identity_provider: ${{ vars.GCP_WORKLOAD_ID_PROVIDER }}
          service_account: ${{ vars.GCP_SERVICE_ACCOUNT }}

      - name: Terraform init and validate
        run: |
          pushd dogfood/
          terraform init
          terraform validate
          popd
          pushd dogfood/coder
          terraform init
          terraform validate
          popd
          pushd dogfood/coder-envbuilder
          terraform init
          terraform validate
          popd

      - name: Get short commit SHA
        if: github.ref == 'refs/heads/main'
        id: vars
        run: echo "sha_short=$(git rev-parse --short HEAD)" >> "$GITHUB_OUTPUT"

      - name: Get latest commit title
        if: github.ref == 'refs/heads/main'
        id: message
        run: echo "pr_title=$(git log --format=%s -n 1 ${{ github.sha }})" >> "$GITHUB_OUTPUT"

      - name: "Push template"
        if: github.ref == 'refs/heads/main'
        run: |
          cd dogfood
          terraform apply -auto-approve
        env:
          # Consumed by coderd provider
          CODER_URL: https://dev.coder.com
          CODER_SESSION_TOKEN: ${{ secrets.CODER_SESSION_TOKEN }}
          # Template source & details
          TF_VAR_CODER_DOGFOOD_ANTHROPIC_API_KEY: ${{ secrets.CODER_DOGFOOD_ANTHROPIC_API_KEY }}
          TF_VAR_CODER_TEMPLATE_NAME: ${{ secrets.CODER_TEMPLATE_NAME }}
          TF_VAR_CODER_TEMPLATE_VERSION: ${{ steps.vars.outputs.sha_short }}
          TF_VAR_CODER_TEMPLATE_DIR: ./coder
          TF_VAR_CODER_TEMPLATE_MESSAGE: ${{ steps.message.outputs.pr_title }}
          TF_LOG: info