ci: new docker image build

Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>

.github/workflows/artifacts.yaml

@@ -0,0 +1,112 @@
+name: Artifacts
+
+on:
+  push:
+    branches:
+      - master
+    tags:
+      - v[0-9]+.[0-9]+.[0-9]+
+  pull_request:
+
+jobs:
+  container-images:
+    name: Container images
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform:
+          - linux/amd64
+          - linux/arm/v7
+          - linux/arm64
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Calculate container image details
+        id: details
+        env:
+          CONTAINER_IMAGES: "ghcr.io/dexidp/dex dexidp/dex"
+        run: |
+          case $GITHUB_REF in
+            refs/tags/*)  VERSION=${GITHUB_REF#refs/tags/};;
+            refs/heads/*) VERSION=$(echo ${GITHUB_REF#refs/heads/} | sed -r 's#/+#-#g');;
+            refs/pull/*)  VERSION=pr-${{ github.event.number }};;
+            *)            VERSION=sha-${GITHUB_SHA::8};;
+          esac
+
+          TAGS=()
+          for image in $CONTAINER_IMAGES; do
+            TAGS+=("${image}:${VERSION}")
+
+            if [[ "${{ github.event.repository.default_branch }}" == "$VERSION" ]]; then
+              TAGS+=("${image}:latest")
+            fi
+          done
+
+          echo ::set-output name=version::${VERSION}
+          echo ::set-output name=tags::$(IFS=,; echo "${TAGS[*]}")
+          echo ::set-output name=commit_hash::${GITHUB_SHA::8}
+          echo ::set-output name=build_date::$(git show -s --format=%cI)
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v1
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v1
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ github.token }}
+        if: github.event_name == 'push'
+
+      - name: Login to Docker Hub
+        uses: docker/login-action@v1
+        with:
+          username: ${{ secrets.DOCKER_USERNAME }}
+          password: ${{ secrets.DOCKER_PASSWORD }}
+        if: github.event_name == 'push'
+
+      - name: Build and push
+        uses: docker/build-push-action@v2
+        with:
+          context: .
+          platforms: ${{ matrix.platform }}
+          cache-from: type=gha
+          cache-to: type=gha,mode=max
+          push: ${{ github.event_name == 'push' }}
+          tags: ${{ steps.details.outputs.tags }}
+          build-args: |
+            VERSION=${{ steps.details.outputs.version }}
+            COMMIT_HASH=${{ steps.details.outputs.commit_hash }}
+            BUILD_DATE=${{ steps.details.outputs.build_date }}
+          labels: |
+            org.opencontainers.image.title=${{ github.event.repository.name }}
+            org.opencontainers.image.description=${{ github.event.repository.description }}
+            org.opencontainers.image.url=${{ github.event.repository.html_url }}
+            org.opencontainers.image.source=${{ github.event.repository.clone_url }}
+            org.opencontainers.image.version=${{ steps.details.outputs.version }}
+            org.opencontainers.image.created=${{ steps.details.outputs.build_date }}
+            org.opencontainers.image.revision=${{ github.sha }}
+            org.opencontainers.image.licenses=${{ github.event.repository.license.spdx_id }}
+            org.opencontainers.image.documentation=https://dexidp.io/docs/
+
+      - name: Run Trivy vulnerability scanner
+        uses: aquasecurity/trivy-action@0.2.3
+        with:
+          image-ref: "ghcr.io/dexidp/dex:${{ steps.details.outputs.version }}"
+          format: "template"
+          template: "@/contrib/sarif.tpl"
+          output: "trivy-results.sarif"
+        if: github.event_name == 'push'
+
+      - name: Upload Trivy scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v1
+        with:
+          sarif_file: "trivy-results.sarif"
+        if: github.event_name == 'push'