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path: root/.github/workflows/docker-base.yml
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name: "Validate Docker base image"
on: 
  workflow_dispatch:
  pull_request:
    paths:
    - "Dockerfile.base"
    - ".github/workflows/docker-base.yml"
jobs:
  build-and-test:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
    - name: "build and test"
      run: |
        set -e
        IMG="test-base:$(head -c 8 /dev/urandom | xxd -p)"
        docker build -t "$IMG" -f Dockerfile.base .

        iptables_version=$(docker run --rm "$IMG" iptables --version)
        if [[ "$iptables_version" != *"(legacy)"* ]]; then
            echo "ERROR: Docker base image should contain legacy iptables; found ${iptables_version}"
            exit 1
        fi

        ip6tables_version=$(docker run --rm "$IMG" ip6tables --version)
        if [[ "$ip6tables_version" != *"(legacy)"* ]]; then
            echo "ERROR: Docker base image should contain legacy ip6tables; found ${ip6tables_version}"
            exit 1
        fi