Add harbor scan report inputs and commenting functionality in action.yml

This update introduces new input parameters for enabling harbor scan report retrieval and commenting on pull requests. The action now includes logic to comment on the PR with scan results, enhancing visibility and feedback during the CI/CD process.

action.yml

@@ -29,7 +29,25 @@ inputs:
     required: false
     description: "Build Secrets"
 
+  harbor-scan-report:
+    required: false
+    default: "true"
+    description: "Should try to get harbor scan report"
+
+  comment-harbor-scan-report:
+    required: false
+    default: "true"
+    description: "Should comment harbor scan report on PR"
+
+  harbor-scan-report-comment-marker:
+    required: false
+    default: '<!-- actions-comment-pull-request "build-and-push" -->'
+    description: "Comment marker for harbor scan report"
+
 outputs:
+  digest:
+    description: "Digest"
+    value: ${{ steps.build-and-push.outputs.digest }}
   tag:
     description: "Image Tag"
     value: ${{ steps.set_tag.outputs.tag }}
@@ -50,8 +68,9 @@ runs:
         images: ${{ inputs.registry }}/${{ inputs.image }}
         flavor: latest=false
         tags: |
-          # Cache
-          type=raw,value=${{ github.ref_name }}-cache
+          # Pull Request
+          type=ref,event=pr
+          type=ref,event=pr,suffix=-{{sha}},priority=8887 # 2
 
           # Branches
           type=ref,event=branch
@@ -71,12 +90,13 @@ runs:
 
     - name: Build Docker images
       uses: docker/build-push-action@v6
+      id: build-and-push
       with:
         push: ${{ inputs.push }}
         file: ${{ inputs.file }}
         tags: ${{ steps.meta.outputs.tags }}
-        cache-to: type=inline
-        cache-from: type=registry,ref=${{ inputs.registry }}/${{ inputs.image }}:${{ github.ref_name }}-cache
+        cache-to: type=registry,ref=${{ inputs.registry }}/${{ inputs.image }}:buildcache,mode=max
+        cache-from: type=registry,ref=${{ inputs.registry }}/${{ inputs.image }}:buildcache
         build-args: ${{ inputs.build-args }}
         secrets: ${{ inputs.build-secrets }}
 
@@ -91,3 +111,71 @@ runs:
       env:
         tags: ${{ steps.meta.outputs.tags }}
         json: ${{ steps.meta.outputs.json }}
+
+    - name: Harbor Scan Results
+      id: harbor-scan-results
+      if: ${{ inputs.harbor-scan-report }} == 'true'
+      uses: ditkrg/harbor-scan-results-action@main
+      with:
+        image: ${{ steps.set_tag.outputs.tag }}
+        username: ${{ inputs.username }}
+        password: ${{ inputs.password }}
+        digest: ${{ steps.build-and-push.outputs.digest }}
+
+    - name: Comment on active branch PR
+      uses: actions/github-script@v7
+      if: ${{ inputs.comment-harbor-scan-report }} == 'true'
+      env:
+        COMMENT_MARKER: ${{ inputs.harbor-scan-report-comment-marker }}
+        TRIVY_SCAN_RESULTS: ${{ steps.harbor-scan-results.outputs.report-markdown }}
+      with:
+        script: |
+          const prs = await github.rest.pulls.list({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            head: `${context.repo.owner}:${context.ref.replace('refs/heads/', '')}`
+          });
+
+          if (prs.data.length <= 0) {
+            console.log('No open PR found for the current branch');
+            return;
+          }
+
+          const pr = prs.data[0];
+          // Check if there's already a comment from this workflow
+          const comments = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: pr.number
+            });
+            
+            const comment_marker = process.env.COMMENT_MARKER;
+            const buildComment = comments.data.find(comment => 
+              comment.body.includes(comment_marker)
+            );
+
+            const commentBody = `${comment_marker}
+            ${process.env.TRIVY_SCAN_RESULTS}
+            `;
+            
+            if (buildComment) {
+              // Update existing comment
+              await github.rest.issues.updateComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: buildComment.id,
+                body: commentBody
+              });
+
+              console.log(`Updated comment to PR #${pr.number}`);
+            } else {
+              // Create new comment
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: pr.number,
+                body: commentBody
+              });
+
+              console.log(`Added comment to PR #${pr.number}`);
+            }