add comments as well

.github/workflows/validate-ansible.yml

@@ -33,6 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     permissions:
       id-token: write
+      pull-requests: write
     strategy:
       matrix:
         host: ${{ fromJson(needs.discover.outputs.hosts) }}
@@ -74,7 +75,51 @@ jobs:
           done
 
       - name: Run playbook (check mode)
+        id: check
         working-directory: ansible/
+        continue-on-error: true
         env:
           ANSIBLE_HOST_KEY_CHECKING: "false"
-        run: ansible-playbook deploy.yml --limit "${{ matrix.host }}" --check --diff
+        run: |
+          ansible-playbook deploy.yml --limit "${{ matrix.host }}" --check --diff 2>&1 | tee playbook_output.txt
+
+      - name: Post recap as PR comment
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const fs = require('fs');
+            const output = fs.readFileSync('ansible/playbook_output.txt', 'utf8');
+            const host = '${{ matrix.host }}';
+            const recap = output.split('\n').filter(l => l.startsWith('PLAY RECAP') || l.includes(host + ' ')).join('\n');
+            const outcome = '${{ steps.check.outcome }}';
+            const header = outcome === 'failure'
+              ? `## Ansible Check → ${host} — FAILED`
+              : `## Ansible Check → ${host}`;
+            const body = `${header}\n\`\`\`\n${recap}\n\`\`\``;
+
+            const { data: comments } = await github.rest.issues.listComments({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+            });
+            const marker = `## Ansible Check → ${host}`;
+            const existing = comments.find(c => c.body.startsWith(marker) || c.body.startsWith(marker + ' —'));
+            if (existing) {
+              await github.rest.issues.updateComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                comment_id: existing.id,
+                body,
+              });
+            } else {
+              await github.rest.issues.createComment({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.issue.number,
+                body,
+              });
+            }
+
+      - name: Fail if check failed
+        if: steps.check.outcome == 'failure'
+        run: exit 1