Added image build step

Author: Lorenzo Gallucci

.github/workflows/docker-publish.yml

@@ -0,0 +1,97 @@
+name: CI
+
+on:
+  push:
+    # Publish `main` as Docker `latest` image.
+    branches:
+      - main
+
+    # Publish `v1.2.3` tags as releases.
+    tags:
+      - v*
+
+  # Run tests for any PRs.
+  pull_request:
+
+env:
+  IMAGE_NAME: log4shell-tester
+
+jobs:
+  # Push image to GitHub Packages.
+  # See also https://docs.docker.com/docker-hub/builds/
+  push:
+    # Ensure test job passes before pushing image.
+    runs-on: ubuntu-latest
+    if: github.event_name == 'push'
+
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v1
+
+      - name: Available platforms
+        run: echo ${{ steps.buildx.outputs.platforms }}
+
+      - name: Build image
+        run: docker build . --file Dockerfile --tag $IMAGE_NAME:${{ github.sha }}
+
+      - name: Run Trivy vulnerability scanner and dump results
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: "${{ env.IMAGE_NAME }}:${{ github.sha }}"
+          format: "table"
+          vuln-type: "os,library"
+          severity: "CRITICAL,HIGH"
+
+      - name: Run Trivy vulnerability scanner (for sarif)
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: "${{ env.IMAGE_NAME }}:${{ github.sha }}"
+          vuln-type: "os,library"
+          severity: "CRITICAL,HIGH"
+          format: "template"
+          template: "@/contrib/sarif.tpl"
+          output: "trivy-results.sarif"
+
+      - name: Upload Trivy scan results to GitHub Security tab
+        uses: github/codeql-action/upload-sarif@v1
+        with:
+          sarif_file: "trivy-results.sarif"
+
+      - name: Run Trivy vulnerability scanner (fail build if any)
+        uses: aquasecurity/trivy-action@master
+        with:
+          image-ref: "${{ env.IMAGE_NAME }}:${{ github.sha }}"
+          exit-code: "1"
+          vuln-type: "os,library"
+          severity: "CRITICAL,HIGH,MEDIUM,LOW"
+          format: "template"
+          template: "@/contrib/sarif.tpl"
+          output: "trivy-results.sarif"
+
+      - name: Log into registry
+        run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
+
+      - name: Push image
+        run: |
+          IMAGE_ID=ghcr.io/${{ github.repository }}
+
+          # Change all uppercase to lowercase
+          IMAGE_ID=$(echo $IMAGE_ID | tr '[A-Z]' '[a-z]')
+
+          # Strip git ref prefix from version
+          VERSION=$(echo "${{ github.ref }}" | sed -e 's,.*/\(.*\),\1,')
+
+          # Strip "v" prefix from tag name
+          [[ "${{ github.ref }}" == "refs/tags/"* ]] && VERSION=$(echo $VERSION | sed -e 's/^v//')
+
+          # Use Docker `latest` tag convention
+          [ "$VERSION" == "main" ] && VERSION=latest
+
+          echo IMAGE_ID=$IMAGE_ID
+          echo VERSION=$VERSION
+
+          docker tag $IMAGE_NAME:${{ github.sha }} $IMAGE_ID:$VERSION
+          docker push $IMAGE_ID:$VERSION