name: test installer.sh

on:
  schedule:
    - cron: '0 15 * * *' # 10am EST (UTC-4/5)
  push:
    branches:
      - "main"
    paths:
      - scripts/installer.sh
      - .github/workflows/installer.yml
  pull_request:
    paths:
      - scripts/installer.sh
      - .github/workflows/installer.yml

jobs:
  test:
    strategy:
      # Don't abort the entire matrix if one element fails.
      fail-fast: false
      # Don't start all of these at once, which could saturate Github workers.
      max-parallel: 4
      matrix:
        image:
          # This is a list of Docker images against which we test our installer.
          # If you find that some of these no longer exist, please feel free
          # to remove them from the list.
          # When adding new images, please only use official ones.
          - "debian:oldstable-slim"
          - "debian:stable-slim"
          - "debian:testing-slim"
          - "debian:sid-slim"
          - "ubuntu:20.04"
          - "ubuntu:22.04"
          - "ubuntu:24.04"
          - "elementary/docker:stable"
          - "elementary/docker:unstable"
          - "parrotsec/core:latest"
          - "kalilinux/kali-rolling"
          - "kalilinux/kali-dev"
          - "oraclelinux:9"
          - "oraclelinux:8"
          - "fedora:latest"
          - "rockylinux:8.7"
          - "rockylinux:9"
          - "amazonlinux:latest"
          - "opensuse/leap:latest"
          - "opensuse/tumbleweed:latest"
          - "archlinux:latest"
          - "alpine:3.21"
          - "alpine:latest"
          - "alpine:edge"
        deps:
          # Run all images installing curl as a dependency.
          - curl
        include:
          # Check a few images with wget rather than curl.
          - { image: "debian:oldstable-slim", deps: "wget" }
          - { image: "debian:sid-slim", deps: "wget" }
    runs-on: ubuntu-latest
    container:
      image: ${{ matrix.image }}
      options: --user root
    steps:
    - name: install dependencies (pacman)
      # Refresh the package databases to ensure that the tailscale package is
      # defined.
      run: pacman -Sy
      if: contains(matrix.image, 'archlinux')
    - name: install dependencies (yum)
      # tar and gzip are needed by the actions/checkout below.
      run: yum install -y --allowerasing tar gzip ${{ matrix.deps }}
      if: |
        contains(matrix.image, 'centos') ||
        contains(matrix.image, 'oraclelinux') ||
        contains(matrix.image, 'fedora') ||
        contains(matrix.image, 'amazonlinux')
    - name: install dependencies (zypper)
      # tar and gzip are needed by the actions/checkout below.
      run: zypper --non-interactive install tar gzip ${{ matrix.deps }}
      if: contains(matrix.image, 'opensuse')
    - name: install dependencies (apt-get)
      run: |
        apt-get update
        apt-get install -y ${{ matrix.deps }}
      if: |
        contains(matrix.image, 'debian') ||
        contains(matrix.image, 'ubuntu') ||
        contains(matrix.image, 'elementary') ||
        contains(matrix.image, 'parrotsec') ||
        contains(matrix.image, 'kalilinux')
    - name: checkout
      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
    - name: run installer
      run: scripts/installer.sh
      # Package installation can fail in docker because systemd is not running
      # as PID 1, so ignore errors at this step. The real check is the
      # `tailscale --version` command below.
      continue-on-error: true
    - name: check tailscale version
      run: tailscale --version
  notify-slack:
    needs: test
    runs-on: ubuntu-latest
    steps:
      - name: Notify Slack of failure on scheduled runs
        if: failure() && github.event_name == 'schedule'
        uses: slackapi/slack-github-action@91efab103c0de0a537f72a35f6b8cda0ee76bf0a # v2.1.1
        with:
          webhook: ${{ secrets.SLACK_WEBHOOK_URL }}
          webhook-type: incoming-webhook
          payload: |
            {
              "attachments": [{
                "title": "Tailscale installer test failed",
                "title_link": "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}",
                "text": "One or more OSes in the test matrix failed. See the run for details.",
                "fields": [
                  {
                    "title": "Ref",
                    "value": "${{ github.ref_name }}",
                    "short": true
                  }
                ],
                "footer": "${{ github.workflow }} on schedule",
                "color": "danger"
              }]
            }
