name: ci / SearXNG image

on:
  pull_request:
    paths:
      - 'docker/searxng/**'
      - 'tests/fixtures/ca-trust/**'
      - 'tests/test_searxng*'
      - 'docker-compose*.yml'
      - 'config/searxng/**'
      - 'scripts/migrate_searxng_settings.py'
      - '.github/scripts/*searxng*'
      - '.github/searxng-validation.compose.yml'
      - '.github/workflows/searxng-image.yml'
  push:
    branches: [dev, main, release/searxng-ca-trust]
    paths:
      - 'docker/searxng/**'
      - 'tests/fixtures/ca-trust/**'
      - 'docker-compose*.yml'
      - 'config/searxng/**'
      - 'scripts/migrate_searxng_settings.py'
      - '.github/scripts/*searxng*'
      - '.github/searxng-validation.compose.yml'
      - '.github/workflows/searxng-image.yml'
  workflow_dispatch:
    inputs:
      publish:
        description: Publish after native validation (canonical trusted branches only)
        type: boolean
        default: false

concurrency:
  group: searxng-image-${{ github.event.pull_request.number || github.ref }}
  cancel-in-progress: false

permissions:
  contents: read

jobs:
  validate:
    name: SearXNG validate (${{ matrix.arch }})
    runs-on: ${{ matrix.runner }}
    timeout-minutes: 25
    strategy:
      fail-fast: false
      matrix:
        include:
          - arch: amd64
            platform: linux/amd64
            runner: ubuntu-latest
          - arch: arm64
            platform: linux/arm64
            runner: ubuntu-24.04-arm
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
      - name: Reproduce affected base
        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
        with:
          context: .
          file: docker/searxng/Dockerfile
          target: baseline-validation
          network: none
          platforms: ${{ matrix.platform }}
          no-cache-filters: baseline-validation
          cache-from: type=gha,scope=searxng-${{ matrix.arch }}
      - name: Validate repaired stores and upstream startup
        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
        with:
          context: .
          file: docker/searxng/Dockerfile
          target: validation
          network: none
          platforms: ${{ matrix.platform }}
          no-cache-filters: validation
          cache-from: type=gha,scope=searxng-${{ matrix.arch }}
      - name: Build runtime without registry credentials
        uses: docker/build-push-action@53b7df96c91f9c12dcc8a07bcb9ccacbed38856a # v7.3.0
        with:
          context: .
          file: docker/searxng/Dockerfile
          target: runtime
          network: none
          platforms: ${{ matrix.platform }}
          load: true
          tags: localhost/odysseus-searxng:ci-${{ matrix.arch }}
          provenance: false
          labels: |
            org.opencontainers.image.source=https://github.com/${{ github.repository }}
            org.opencontainers.image.revision=${{ github.sha }}
          cache-from: type=gha,scope=searxng-${{ matrix.arch }}
          cache-to: type=gha,mode=max,scope=searxng-${{ matrix.arch }}
      - name: Validate actual runtime through Compose and live HTTPS
        env:
          SEARXNG_TEST_IMAGE: localhost/odysseus-searxng:ci-${{ matrix.arch }}
        run: bash .github/scripts/validate-searxng-image.sh "$SEARXNG_TEST_IMAGE"
      - name: Export validated runtime and input checksums
        env:
          ARCH: ${{ matrix.arch }}
        run: |
          docker save --output "$RUNNER_TEMP/runtime-${ARCH}.tar" "localhost/odysseus-searxng:ci-${ARCH}"
          python3 .github/scripts/searxng_release.py inputs --revision "$GITHUB_SHA" \
            --repository "$GITHUB_REPOSITORY" --output "$RUNNER_TEMP/inputs-${ARCH}.json"
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: searxng-runtime-${{ matrix.arch }}
          path: |
            ${{ runner.temp }}/runtime-${{ matrix.arch }}.tar
            ${{ runner.temp }}/inputs-${{ matrix.arch }}.json
          compression-level: 0
          if-no-files-found: error
          retention-days: 3

  publish:
    name: Publish validated SearXNG architectures and index
    needs: validate
    if: >-
      github.repository == 'odysseus-dev/odysseus' &&
      (github.event_name == 'push' || (github.event_name == 'workflow_dispatch' && inputs.publish)) &&
      contains(fromJSON('["refs/heads/dev","refs/heads/main","refs/heads/release/searxng-ca-trust"]'), github.ref)
    runs-on: ubuntu-latest
    timeout-minutes: 20
    permissions:
      contents: read
      packages: write
    outputs:
      image: ${{ steps.release.outputs.image }}
    env:
      SEARXNG_IMAGE: ghcr.io/odysseus-dev/odysseus-searxng
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          path: ${{ runner.temp }}/searxng-artifacts
          pattern: searxng-runtime-*
          merge-multiple: true
      - name: Load and inspect the validated artifacts before registry login
        run: |
          for arch in amd64 arm64; do
            docker load --input "$RUNNER_TEMP/searxng-artifacts/runtime-${arch}.tar"
            image="localhost/odysseus-searxng:ci-${arch}"
            test "$(docker image inspect --format '{{.Os}}/{{.Architecture}}' "$image")" = "linux/${arch}"
            test "$(docker image inspect --format '{{index .Config.Labels "org.opencontainers.image.revision"}}' "$image")" = "$GITHUB_SHA"
          done
      - uses: docker/setup-buildx-action@37fe631027851001ddb9b187196cc803df7f5f0e # v4.3.0
      - uses: docker/login-action@dbcb813823bdd20940b903addbd779551569679f # v4.6.0
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Publish the exact validated artifacts
        id: release
        run: |
          tag="sha-${GITHUB_SHA}-${GITHUB_RUN_ID}-${GITHUB_RUN_ATTEMPT}"
          refs=()
          for arch in amd64 arm64; do
            remote="${SEARXNG_IMAGE}:${tag}-${arch}"
            docker tag "localhost/odysseus-searxng:ci-${arch}" "$remote"
            docker push "$remote"
            digests=$(docker image inspect --format '{{json .RepoDigests}}' "$remote")
            ref=$(jq -er --arg prefix "${SEARXNG_IMAGE}@" '.[] | select(startswith($prefix))' <<< "$digests")
            [[ "$ref" =~ ^ghcr.io/odysseus-dev/odysseus-searxng@sha256:[0-9a-f]{64}$ ]]
            refs+=("$ref")
          done
          docker buildx imagetools create --tag "${SEARXNG_IMAGE}:${tag}" "${refs[@]}"
          docker buildx imagetools inspect "${SEARXNG_IMAGE}:${tag}" --format '{{json .Manifest}}' > "$RUNNER_TEMP/searxng-manifest.json"
          python3 .github/scripts/searxng_release.py release \
            --amd64 "$RUNNER_TEMP/searxng-artifacts/inputs-amd64.json" \
            --arm64 "$RUNNER_TEMP/searxng-artifacts/inputs-arm64.json" \
            --manifest "$RUNNER_TEMP/searxng-manifest.json" --revision "$GITHUB_SHA" \
            --amd64-digest "${refs[0]#*@}" --arm64-digest "${refs[1]#*@}" \
            --run-id "$GITHUB_RUN_ID" --tag "$tag" --output "$RUNNER_TEMP/searxng-release.json"
          image=$(jq -er .image "$RUNNER_TEMP/searxng-release.json")
          echo "image=$image" >> "$GITHUB_OUTPUT"
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: searxng-release-candidate
          path: ${{ runner.temp }}/searxng-release.json
          if-no-files-found: error
          retention-days: 30

  verify-published:
    name: Verify public SearXNG pull (${{ matrix.arch }})
    needs: publish
    runs-on: ${{ matrix.runner }}
    timeout-minutes: 15
    strategy:
      fail-fast: false
      matrix:
        include:
          - arch: amd64
            runner: ubuntu-latest
          - arch: arm64
            runner: ubuntu-24.04-arm
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
        with:
          persist-credentials: false
      - name: Pull the published index without registry credentials
        env:
          SEARXNG_TEST_IMAGE: ${{ needs.publish.outputs.image }}
        run: |
          if ! docker pull "$SEARXNG_TEST_IMAGE"; then
            echo '::error::Anonymous GHCR pull failed. A newly created package defaults to private: make odysseus-searxng public, then rerun the failed verification jobs.'
            exit 1
          fi
      - name: Validate the pulled runtime through Compose
        env:
          SEARXNG_TEST_IMAGE: ${{ needs.publish.outputs.image }}
        run: bash .github/scripts/validate-searxng-image.sh "$SEARXNG_TEST_IMAGE"

  release:
    name: Record verified Compose image reference
    needs: [publish, verify-published]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
        with:
          name: searxng-release-candidate
          path: ${{ runner.temp }}/searxng-release
      - name: Record the verified image
        env:
          SEARXNG_VERIFIED_IMAGE: ${{ needs.publish.outputs.image }}
        run: |
          {
            echo '## Verified SearXNG image'
            echo
            echo "\`$SEARXNG_VERIFIED_IMAGE\`"
            echo
            echo 'Both native architectures passed Compose startup, fourteen incident-chain/HTTPS checks and live search before and after publication.'
            echo 'Pin this reference in the base and standalone GPU Compose files and commit the release descriptor.'
          } >> "$GITHUB_STEP_SUMMARY"
      - uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
        with:
          name: searxng-release
          path: ${{ runner.temp }}/searxng-release/searxng-release.json
          if-no-files-found: error
          retention-days: 30