ci.yaml

name: ci

on:
  push:
    branches:
    - main
    - release/**
    tags:
    - v[0-9]+.[0-9]+.[0-9]+-?**

defaults:
  run:
    shell: bash

env:
  PUBLIC_IMAGE_DEV_REPO: ${{ vars.PUBLIC_IMAGE_DEV_REPO }}
  PUBLIC_IMAGE_REPO: ${{ vars.PUBLIC_IMAGE_REPO }}
  PACK_VERSION: ${{ vars.PACK_VERSION }}

jobs:
  unit:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
      with:
        fetch-depth: 0

    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version-file: 'go.mod'

    - name: Run tests
      run: make unit-ci

    - name: Report coverage
      uses: codecov/codecov-action@v3.1.4

  controller-image:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/controller
        bp_go_targets: "./cmd/controller"

  webhook-image:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/webhook
        bp_go_targets: "./cmd/webhook"

  completion-image:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/completion
        bp_go_targets: "./cmd/completion"

  build-init-image:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/build-init
        bp_go_targets: "./cmd/build-init"

  build-waiter-image:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/build-waiter
        bp_go_targets: "./cmd/build-waiter"

  rebase-image:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/rebase
        bp_go_targets: "./cmd/rebase"

  build-init-windows-image:
    runs-on: windows-2019
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/build-init-windows
        bp_go_targets: '.\cmd\build-init;.\cmd\network-wait-launcher'
        builder: gcr.io/cf-build-service-public/kpack-windows-builder
        additional_pack_args: "--trust-builder"

  completion-windows-image:
    runs-on: windows-2019
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Build
      uses: ./.github/actions/pack-build
      with:
        pack_version: ${{ env.PACK_VERSION }}
        tag: ${{ env.PUBLIC_IMAGE_DEV_REPO }}/completion-windows
        bp_go_targets: '.\cmd\completion'
        builder: gcr.io/cf-build-service-public/kpack-windows-builder
        additional_pack_args: "--trust-builder"

  lifecycle-image:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4
    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}
    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version-file: 'go.mod'
    - name: Build
      run: |
        trap 'echo -e "$output"' EXIT

        output=$(go run ./hack/lifecycle/main.go --tag=${{ env.PUBLIC_IMAGE_DEV_REPO }}/lifecycle 2>&1)
        image=$(echo "$output" | grep "saved lifecycle" | awk -F  "saved lifecycle image: " '{print $2}')
        mkdir images
        echo $image > images/lifecycle
    - name: Upload Image Artifacts
      uses: actions/upload-artifact@v3
      with:
        name: images
        path: images/

  generate-pre-release-yaml:
    runs-on: ubuntu-latest
    needs:
    - lifecycle-image
    - controller-image
    - webhook-image
    - completion-image
    - rebase-image
    - build-init-image
    - build-waiter-image
    - build-init-windows-image
    - completion-windows-image
    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version-file: 'go.mod'

    - name: Setup carvel
      uses: carvel-dev/setup-action@v1
      with:
        token: ${{ secrets.RELEASE_TOKEN }}
        only: ytt, kapp

    - name: Download artifacts
      uses: actions/download-artifact@v3
      with:
        name: images

    - name: Build release yaml
      run: |        
        ytt -f config/ \
          -v controller.image=$(cat controller) \
          -v webhook.image=$(cat webhook) \
          -v build_init.image=$(cat build-init) \
          -v build_init_windows.image=$(cat build-init-windows) \
          -v build_waiter.image=$(cat build-waiter) \
          -v rebase.image=$(cat rebase) \
          -v completion.image=$(cat completion) \
          -v completion_windows.image=$(cat completion-windows) \
          -v lifecycle.image=$(cat lifecycle) > prerelease.yaml

        cat prerelease.yaml

    - name: Upload Pre-Release
      uses: actions/upload-artifact@v3
      with:
        name: prerelease
        path: prerelease.yaml

  e2e:
    needs:
      - generate-pre-release-yaml
      - controller-image
      - webhook-image
      - completion-image
      - rebase-image
      - build-init-image
      - build-waiter-image
      - build-init-windows-image
      - completion-windows-image
      - lifecycle-image
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version-file: 'go.mod'

    - name: Setup crane
      uses: imjasonh/setup-crane@v0.3

    - name: Setup carvel
      uses: carvel-dev/setup-action@v1
      with:
        token: ${{ secrets.RELEASE_TOKEN }}
        only: ytt, kapp

    - name: Download release
      uses: actions/download-artifact@v3
      with:
        name: prerelease

    - name: Setup local registry
      run: |
        user="test"
        pass="test"

        echo "Generating users"
        htpasswd -Bbn "$user" "$pass" >> htpasswd # authenticated user for tests

        # the registry can be accessed from inside the kind cluster via it's name.
        # however, due to a quirk with ggcr, it will force https connections UNLESS
        # it fits certain patterns (https://github.com/google/go-containerregistry/blob/b8d1c0a1df12a3b3dd3e7f98330780fdc015ce40/pkg/name/registry.go#L75)
        # so in order to avoid setting tls for the registry, we can name it something.local
        # to trick ggcr into using the http scheme
        name="registry.local"

        echo "Starting registry"
        if [ "$(docker inspect -f '{{.State.Running}}' "${reg_name}" 2>/dev/null || true)" != 'true' ]; then
          docker run --detach \
            --name "$name" \
            -v "$(pwd)/htpasswd:/auth/htpasswd" \
            -e "REGISTRY_AUTH=htpasswd" \
            -e "REGISTRY_AUTH_HTPASSWD_REALM=Registry Realm" \
            -e "REGISTRY_AUTH_HTPASSWD_PATH=/auth/htpasswd" \
            -e "REGISTRY_STORAGE_DELETE_ENABLED=true" \
            --publish "5000:5000" \
            registry:2
        fi

        echo "REGISTRY_URL=$name:5000" >> $GITHUB_ENV
        echo "REGISTRY_USER=$user" >> $GITHUB_ENV
        echo "REGISTRY_PASS=$pass" >> $GITHUB_ENV

        # alias registry.local to localhost
        # ip=$(docker container inspect $name --format '{{ .NetworkSettings.Networks.kind.IPAddress }}')
        ip=127.0.0.1
        echo "$ip registry.local" | sudo tee -a /etc/hosts

        cat <<EOF > kind.yaml
        kind: Cluster
        apiVersion: kind.x-k8s.io/v1alpha4
        containerdConfigPatches:
        - |-
          [plugins."io.containerd.grpc.v1.cri".registry.mirrors."registry.local:5000"]
            endpoint = ["http://registry.local:5000"]
        EOF

    - name: Create Kind Cluster
      uses: helm/kind-action@v1.8.0
      with:
        cluster_name: e2e
        config: kind.yaml

    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ env.REGISTRY_URL }}
        username: ${{ env.REGISTRY_USER }}
        password: ${{ env.REGISTRY_PASS }}

    - name: Run tests
      run: |
        # make the registry container accessible by name from inside the cluster
        docker network connect kind registry.local

        kapp deploy -a kpack -y -f prerelease.yaml

        export IMAGE_REGISTRY=${{ env.REGISTRY_URL }}
        export IMAGE_REGISTRY_USERNAME=${{ env.REGISTRY_USER }}
        export IMAGE_REGISTRY_PASSWORD=${{ env.REGISTRY_PASS }}

        export GIT_PRIVATE_REPO=${{ vars.E2E_PRIVATE_REPO }}
        export GIT_BASIC_USERNAME="${{ secrets.E2E_PRIVATE_REPO_USERNAME }}"
        export GIT_BASIC_PASSWORD="${{ secrets.E2E_PRIVATE_REPO_PASSWORD }}"
        export GIT_SSH_PRIVATE_KEY="${{ secrets.E2E_PRIVATE_REPO_PRIVATE_KEY }}"

        make e2e
        kapp delete -a kpack -y

    - name: Run tests with Istio
      run: |
        helm repo add istio https://istio-release.storage.googleapis.com/charts
        helm repo update
        kubectl create namespace istio-system
        helm install istio-base istio/base -n istio-system --wait
        helm install istiod istio/istiod -n istio-system --wait

        cat <<EOF > overlay.yaml
        #@ load("@ytt:overlay", "overlay")
        #@overlay/match by=overlay.subset({"metadata":{"name":"kpack-controller"}, "kind": "Deployment"})
        ---
        spec:
          template:
            spec:
              containers:
              #@overlay/match by="name"
              - name: controller
                #@overlay/match-child-defaults missing_ok=True
                env:
                #@overlay/match by="name"
                #@overlay/replace or_add=True
                - name: INJECTED_SIDECAR_SUPPORT
                  value: "true"
        EOF

        ytt -f prerelease.yaml -f overlay.yaml | kapp deploy -a kpack -y -f-

        export IMAGE_REGISTRY=${{ env.REGISTRY_URL }}
        export IMAGE_REGISTRY_USERNAME=${{ env.REGISTRY_USER }}
        export IMAGE_REGISTRY_PASSWORD=${{ env.REGISTRY_PASS }}
        export KPACK_TEST_NAMESPACE_LABELS="istio-injection=enabled"

        export GIT_PRIVATE_REPO=${{ vars.E2E_PRIVATE_REPO }}
        export GIT_BASIC_USERNAME="${{ secrets.E2E_PRIVATE_REPO_USERNAME }}"
        export GIT_BASIC_PASSWORD="${{ secrets.E2E_PRIVATE_REPO_PASSWORD }}"
        export GIT_SSH_PRIVATE_KEY="${{ secrets.E2E_PRIVATE_REPO_PRIVATE_KEY }}"

        make e2e

  release:
    needs:
      - unit
      - e2e
      - generate-pre-release-yaml
      - controller-image
      - webhook-image
      - completion-image
      - rebase-image
      - build-init-image
      - build-waiter-image
      - build-init-windows-image
      - completion-windows-image
      - lifecycle-image
    if: ${{ startsWith(github.ref, 'refs/tags/v') }}
    runs-on: ubuntu-latest
    steps:
    - name: Checkout
      uses: actions/checkout@v4

    - name: Set up Go
      uses: actions/setup-go@v4
      with:
        go-version-file: 'go.mod'

    - name: Setup crane
      uses: imjasonh/setup-crane@v0.3

    - name: Setup carvel
      uses: carvel-dev/setup-action@v1
      with:
        token: ${{ secrets.RELEASE_TOKEN }}
        only: ytt

    - name: Download artifacts
      uses: actions/download-artifact@v3

    - name: Docker Login
      uses: docker/login-action@v3.0.0
      with:
        registry: ${{ secrets.REGISTRY_HOST }}
        username: ${{ secrets.REGISTRY_USER }}
        password: ${{ secrets.REGISTRY_PASSWORD }}

    - name: Parse tag name
      run: |
        echo "GITHUB_REF=${GITHUB_REF}"
        [[ $GITHUB_REF =~ ^refs\/tags\/v(.*)$ ]] && version=${BASH_REMATCH[1]} 
        if [[ -z "${version}" ]]; then
          echo "ERROR: kpack version not detected."
          exit 1
        fi
        echo "KPACK_VERSION=${version}" >> $GITHUB_ENV

    - name: Promote images
      run: |
        mkdir final-image-refs
        for image in images/*; do
          dev_image=$(cat $image)
          digest=$(echo $dev_image| cut -d "@" -f 2)
          
          name=$(basename $image)
          final_repo="${{ env.PUBLIC_IMAGE_REPO }}/${name}" 
          
          crane copy "$dev_image" "$final_repo"
          
          echo "${final_repo}@${digest}" > final-image-refs/$name
        done

    - name: Upload image refs
      uses: actions/upload-artifact@v3
      with:
        name: final-image-refs
        path: final-image-refs/*

    - name: Generate release yaml
      id: release_yaml
      run: |
        file="release-${{ env.KPACK_VERSION }}.yaml"
        ytt -f config/ \
          -v controller.image=$(cat final-image-refs/controller) \
          -v webhook.image=$(cat final-image-refs/webhook) \
          -v build_init.image=$(cat final-image-refs/build-init) \
          -v build_init_windows.image=$(cat final-image-refs/build-init-windows) \
          -v build_waiter.image=$(cat final-image-refs/build-waiter) \
          -v rebase.image=$(cat final-image-refs/rebase) \
          -v completion.image=$(cat final-image-refs/completion) \
          -v completion_windows.image=$(cat final-image-refs/completion-windows) \
          -v lifecycle.image=$(cat final-image-refs/lifecycle) \
          -v kpack_version=${{ env.KPACK_VERSION }} > $file
        echo "sha=$(shasum -a 256 $file)" >> $GITHUB_OUTPUT

    - name: Upload Release
      uses: actions/upload-artifact@v3
      with:
        name: release
        path: release-${{ env.KPACK_VERSION }}.yaml

    - name: Create Draft Release
      uses: softprops/action-gh-release@v1
      with:
        name: kpack v${{ env.KPACK_VERSION }}
        tag_name: v${{ env.KPACK_VERSION }}
        target_commitish: ${{ github.sha }}
        token: ${{ secrets.RELEASE_TOKEN }}
        draft: true
        prerelease: true
        files: release-*.yaml
        body: |
          ## What's Changed

          ## Bug Fixes

          ## Bumped Dependencies

          sha256 checksum:
          ```
          ${{ steps.release_yaml.outputs.sha }}
          ```

          **Full Changelog**: