test.yaml

# Copyright 2022 DigitalOcean
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

### Run unit as well as end-to-end tests on PRs and master pushes. For the
### latter, we also push a new CSI plugin master image to the container
### registry.
name: test

env:
  DOCKER_ORG: digitalocean
  DOCKER_USER: ${{ secrets.DockerHubUser }}

on:
  push:
    branches:
      - master
  pull_request:
    branches:

jobs:
  unit-test:
    runs-on: ubuntu-20.04

    steps:
      - name: checkout
        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab  # v3.5.2
        with:
          fetch-depth: 1

      - name: Go setup
        uses: actions/setup-go@4d34df0c2316fe8122ab82dc22947d607c0c91f9  # v4.0.0
        with:
          go-version-file: go.mod

      - name: Run unit tests
        run: make all

  push-images:
    runs-on: ubuntu-20.04
    needs: unit-test

    steps:
      - name: checkout
        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab  # v3.5.2
        with:
          fetch-depth: 1

      - name: Log into container registry
        run: echo "${{ secrets.DockerHubToken }}" | docker login --username ${DOCKER_USER} --password-stdin

      # Github Actions provides a limited amount of disk space only that we
      # exceed during the Docker build (https://help.github.com/en/actions/reference/virtual-environments-for-github-hosted-runners#supported-runners-and-hardware-resources).
      # Free up as much disk space as possible.
      - name: free disk space
        run: |
          sudo swapoff -a
          sudo rm -f /swapfile
          sudo apt clean
          docker system prune -af --volumes
          df -h

      - name: build and push runner image
        env:
          # ${{ github.head_ref }} is empty for non-pull requests, which is
          # exactly what we want on master.
          RUNNER_IMAGE_TAG_PREFIX: ${{ github.head_ref }}
        run: RUNNER_IMAGE=${DOCKER_ORG}/k8s-e2e-test-runner make runner-push

      - name: Build and push development plugin image
        env:
          VERSION: ${{ github.head_ref }}
        run: |
          VERSION="${VERSION:-latest}"
          DOCKER_REPO=${DOCKER_ORG}/do-csi-plugin-dev make publish

  e2e-test:
    runs-on: ubuntu-20.04
    needs: push-images
    strategy:
      fail-fast: false
      matrix:
        kube-release: ['1.28', '1.27', '1.26', '1.25']

    steps:
      - name: checkout
        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab  # v3.5.2
        with:
          fetch-depth: 1

      - name: Go setup
        uses: actions/setup-go@4d34df0c2316fe8122ab82dc22947d607c0c91f9  # v4.0.0
        with:
          go-version-file: go.mod

      - name: Install kustomize
        env:
          KUSTOMIZE_VERSION: '4.4.1'
        run: curl -fL https://github.com/kubernetes-sigs/kustomize/releases/download/kustomize%2Fv${KUSTOMIZE_VERSION}/kustomize_v${KUSTOMIZE_VERSION}_linux_amd64.tar.gz | sudo tar xzv -C /usr/local/bin kustomize

      - name: Run end-to-end tests
        env:
          DIGITALOCEAN_ACCESS_TOKEN: ${{ secrets.CSIDigitalOceanAccessToken }}
          # ${{ github.head_ref }} will be empty for pull requests and non-empty
          # for pushes. Handle the cases in "run" below to parameterize our e2e
          # test invocation accordingly.
          BRANCH: ${{ github.head_ref }}
          # Use less ginkgo nodes to avoid running into the DO API rate limit.
          # The upstream end-to-end tests are quite demanding in terms of API
          # request volume, and we run them concurrently.
          NUM_GINKGO_NODES: "8"
        run: |
          BRANCH=$(echo -n ${BRANCH} | tr -c '[:alnum:]._-' '-')
          NAME_SUFFIX="${BRANCH}"
          TAG="${BRANCH}"
          if [[ $BRANCH != "" ]]; then
            # Hash name suffix which goes into the cluster name to ensure we do
            # not exceed any name constraints.
            NAME_SUFFIX=$(echo -n ${BRANCH} | sha256sum | cut -c1-7)
            RUNNER_IMAGE_TAG_PREFIX=${BRANCH}-
          else
            NAME_SUFFIX=master
            TAG=latest
          fi

          TIMEOUT=60m make test-e2e E2E_ARGS="-ginkgo-nodes ${NUM_GINKGO_NODES} -driver-image ${DOCKER_ORG}/do-csi-plugin-dev:${TAG} -runner-image ${DOCKER_ORG}/k8s-e2e-test-runner:${RUNNER_IMAGE_TAG_PREFIX}latest -name-suffix ${NAME_SUFFIX} -retain ${{ matrix.kube-release }}"

  tag-new-master-image:
    runs-on: ubuntu-20.04
    if: github.ref == 'refs/heads/master'
    needs: e2e-test

    steps:
      - name: checkout
        uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab  # v3.5.2
        with:
          fetch-depth: 1

      - name: Log into container registry
        run: echo "${{ secrets.DockerHubToken }}" | docker login --username ${DOCKER_USER} --password-stdin

      - name: tag new CSI plugin master image
        run: |
          docker pull ${DOCKER_ORG}/do-csi-plugin-dev:latest
          docker tag ${DOCKER_ORG}/do-csi-plugin-dev:latest ${DOCKER_ORG}/do-csi-plugin:master
          docker push ${DOCKER_ORG}/do-csi-plugin:master