name: deploy

on:
  # Via workflow_call, called from ci.yaml
  workflow_call:
    inputs:
      image:
        description: "Image and tag to potentially deploy. Current branch will be validated against should-deploy check."
        required: true
        type: string
    secrets:
      FLY_API_TOKEN:
        required: true
      FLY_PARIS_CODER_PROXY_SESSION_TOKEN:
        required: true
      FLY_SYDNEY_CODER_PROXY_SESSION_TOKEN:
        required: true
      FLY_SAO_PAULO_CODER_PROXY_SESSION_TOKEN:
        required: true
      FLY_JNB_CODER_PROXY_SESSION_TOKEN:
        required: true

permissions:
  contents: read

concurrency:
  group: ${{ github.workflow }} # no per-branch concurrency
  cancel-in-progress: false

jobs:
  # Determines if the given branch should be deployed to dogfood.
  should-deploy:
    name: should-deploy
    runs-on: ubuntu-latest
    outputs:
      verdict: ${{ steps.check.outputs.verdict }} # DEPLOY or NOOP
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@5ef0c079ce82195b2a36a210272d6b661572d83e # v2.14.2
        with:
          egress-policy: audit

      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: Check if deploy is enabled
        id: check
        run: |
          set -euo pipefail
          verdict="$(./scripts/should_deploy.sh)"
          echo "verdict=$verdict" >> "$GITHUB_OUTPUT"

  deploy:
    name: "deploy"
    runs-on: ubuntu-latest
    timeout-minutes: 30
    needs: should-deploy
    if: needs.should-deploy.outputs.verdict == 'DEPLOY'
    permissions:
      contents: read
      id-token: write
      packages: write # to retag image as dogfood
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@5ef0c079ce82195b2a36a210272d6b661572d83e # v2.14.2
        with:
          egress-policy: audit

      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: GHCR Login
        uses: docker/login-action@c94ce9fb468520275223c153574b00df6fe4bcc9 # v3.7.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - 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: Set up Google Cloud SDK
        uses: google-github-actions/setup-gcloud@aa5489c8933f4cc7a4f7d45035b3b1440c9c10db # v3.0.1

      - name: Set up Flux CLI
        uses: fluxcd/flux2/action@8454b02a32e48d775b9f563cb51fdcb1787b5b93 # v2.7.5
        with:
          # Keep this and the github action up to date with the version of flux installed in dogfood cluster
          version: "2.7.0"

      - name: Get Cluster Credentials
        uses: google-github-actions/get-gke-credentials@3da1e46a907576cefaa90c484278bb5b259dd395 # v3.0.0
        with:
          cluster_name: dogfood-v2
          location: us-central1-a
          project_id: coder-dogfood-v2

      # Retag image as dogfood while maintaining the multi-arch manifest
      - name: Tag image as dogfood
        run: docker buildx imagetools create --tag "ghcr.io/coder/coder-preview:dogfood" "$IMAGE"
        env:
          IMAGE: ${{ inputs.image }}

      - name: Reconcile Flux
        run: |
          set -euxo pipefail
          flux --namespace flux-system reconcile source git flux-system
          flux --namespace flux-system reconcile source git coder-main
          flux --namespace flux-system reconcile kustomization flux-system
          flux --namespace flux-system reconcile kustomization coder
          flux --namespace flux-system reconcile source chart coder-coder
          flux --namespace flux-system reconcile source chart coder-coder-provisioner
          flux --namespace coder reconcile helmrelease coder
          flux --namespace coder reconcile helmrelease coder-provisioner
          flux --namespace coder reconcile helmrelease coder-provisioner-tagged
          flux --namespace coder reconcile helmrelease coder-provisioner-tagged-prebuilds

      # Just updating Flux is usually not enough. The Helm release may get
      # redeployed, but unless something causes the Deployment to update the
      # pods won't be recreated. It's important that the pods get recreated,
      # since we use `imagePullPolicy: Always` to ensure we're running the
      # latest image.
      - name: Rollout Deployment
        run: |
          set -euxo pipefail
          kubectl --namespace coder rollout restart deployment/coder
          kubectl --namespace coder rollout status deployment/coder
          kubectl --namespace coder rollout restart deployment/coder-provisioner
          kubectl --namespace coder rollout status deployment/coder-provisioner
          kubectl --namespace coder rollout restart deployment/coder-provisioner-tagged
          kubectl --namespace coder rollout status deployment/coder-provisioner-tagged
          kubectl --namespace coder rollout restart deployment/coder-provisioner-tagged-prebuilds
          kubectl --namespace coder rollout status deployment/coder-provisioner-tagged-prebuilds

  deploy-wsproxies:
    runs-on: ubuntu-latest
    needs: deploy
    steps:
      - name: Harden Runner
        uses: step-security/harden-runner@5ef0c079ce82195b2a36a210272d6b661572d83e # v2.14.2
        with:
          egress-policy: audit

      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0
          persist-credentials: false

      - name: Setup flyctl
        uses: superfly/flyctl-actions/setup-flyctl@fc53c09e1bc3be6f54706524e3b82c4f462f77be # v1.5

      - name: Deploy workspace proxies
        run: |
          flyctl deploy --image "$IMAGE" --app paris-coder --config ./.github/fly-wsproxies/paris-coder.toml --env "CODER_PROXY_SESSION_TOKEN=$TOKEN_PARIS" --yes
          flyctl deploy --image "$IMAGE" --app sydney-coder --config ./.github/fly-wsproxies/sydney-coder.toml --env "CODER_PROXY_SESSION_TOKEN=$TOKEN_SYDNEY" --yes
          flyctl deploy --image "$IMAGE" --app jnb-coder --config ./.github/fly-wsproxies/jnb-coder.toml --env "CODER_PROXY_SESSION_TOKEN=$TOKEN_JNB" --yes
        env:
          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
          IMAGE: ${{ inputs.image }}
          TOKEN_PARIS: ${{ secrets.FLY_PARIS_CODER_PROXY_SESSION_TOKEN }}
          TOKEN_SYDNEY: ${{ secrets.FLY_SYDNEY_CODER_PROXY_SESSION_TOKEN }}
          TOKEN_JNB: ${{ secrets.FLY_JNB_CODER_PROXY_SESSION_TOKEN }}