From eac995656220570d2397b92d5d73f660f42fc3db Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Tue, 3 Feb 2026 21:18:38 +0000 Subject: [PATCH 1/4] Initial plan From 94cc733a299d5dee053fd64719c84384f7e0ecab Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Tue, 3 Feb 2026 21:24:00 +0000 Subject: [PATCH 2/4] Add workflow to post ArgoCD RCA to GitHub issue Co-authored-by: dcasati <3240777+dcasati@users.noreply.github.com> --- .github/workflows/post-argocd-rca.yml | 182 ++++++++++++++++++++++++++ 1 file changed, 182 insertions(+) create mode 100644 .github/workflows/post-argocd-rca.yml diff --git a/.github/workflows/post-argocd-rca.yml b/.github/workflows/post-argocd-rca.yml new file mode 100644 index 0000000..098536a --- /dev/null +++ b/.github/workflows/post-argocd-rca.yml @@ -0,0 +1,182 @@ +name: Post ArgoCD RCA to Issue + +# This workflow posts the Root Cause Analysis for the ArgoCD deployment failure +# Trigger it manually after investigation is complete + +on: + workflow_dispatch: + inputs: + issue_number: + description: 'Issue number to post RCA comment to' + required: true + type: number + default: 12 + +permissions: + issues: write + contents: read + +jobs: + post-rca: + runs-on: ubuntu-latest + + steps: + - name: Post Root Cause Analysis Comment + uses: actions/github-script@v7 + with: + script: | + const issueNumber = ${{ github.event.inputs.issue_number }}; + + const rcaComment = `## 🔍 Root Cause Analysis + +I've investigated the ArgoCD deployment failure for \`2-broken-apps\` and identified the root cause. + +### Issue Summary + +**Problem:** Invalid Kubernetes manifest syntax in the source repository +**Location:** \`apps/broken-aks-store-all-in-one.yaml\` in the source repository +**Commit:** \`8cd04df204028ff78613a69fdb630625864037c6\` +**Error Type:** Malformed \`apiVersion\` field + +### Detailed Findings + +The deployment is failing because of an **intentionally broken** Kubernetes manifest in the source repository (\`https://github.com/dcasati/argocd-notification-examples.git\`). + +#### The Specific Error: + +In the \`order-service\` Deployment manifest (line 178), the \`apiVersion\` field is malformed: + +\`\`\`yaml +apiVersion: apps/v # ❌ INVALID - missing version number +kind: Deployment +metadata: + name: order-service +\`\`\` + +**Expected:** +\`\`\`yaml +apiVersion: apps/v1 # ✅ CORRECT +kind: Deployment +metadata: + name: order-service +\`\`\` + +This was introduced in commit \`8cd04df204028ff78613a69fdb630625864037c6\` with the commit message: **"break apiVersion formatting in deployment YAML"** + +### Why ArgoCD Failed + +When ArgoCD attempts to sync this application: + +1. **Validation Stage:** ArgoCD's application controller validates the manifest +2. **Error Detection:** The controller detects that \`apiVersion: apps/v\` is not a valid Kubernetes API version +3. **Sync Failure:** ArgoCD marks the synchronization as invalid and fails after the configured retry limit (2 attempts) +4. **Result:** Application status becomes \`Degraded\` and \`OutOfSync\` + +The error message **"one or more synchronization tasks are not valid"** is ArgoCD's way of indicating that the manifests failed validation before they could even be applied to the cluster. + +--- + +## 🛠️ Remediation Recommendations + +### Option 1: Fix the Source Repository (Recommended) + +This application appears to be a **test/demo application** designed to trigger failures for testing ArgoCD notifications. If you want the application to deploy successfully: + +**Steps:** +1. Fork or update the source repository: \`https://github.com/dcasati/argocd-notification-examples.git\` +2. Fix the malformed \`apiVersion\` in \`apps/broken-aks-store-all-in-one.yaml\`: + \`\`\`bash + # Navigate to the repository + cd /path/to/argocd-notification-examples + + # Fix the apiVersion (line 178) + sed -i 's/apiVersion: apps\\\\/v$/apiVersion: apps\\\\/v1/' apps/broken-aks-store-all-in-one.yaml + + # Commit and push + git commit -am "Fix apiVersion for order-service deployment" + git push + \`\`\` +3. ArgoCD will automatically detect the change and retry the sync + +### Option 2: Update to Use a Valid Application Repository + +If you need a working AKS Store demo application: + +**Steps:** +1. Update the ArgoCD Application manifest (\`Act-3/argocd-test-app.yaml\`) to point to a valid repository: + \`\`\`yaml + source: + # Use the official AKS store demo repository + repoURL: https://github.com/Azure-Samples/aks-store-demo.git + targetRevision: main + path: charts/aks-store-demo # Or appropriate path + \`\`\` +2. Apply the updated manifest: + \`\`\`bash + kubectl apply -f Act-3/argocd-test-app.yaml + \`\`\` + +### Option 3: Accept This as Expected Behavior (If Testing Notifications) + +If this application (\`2-broken-apps\`) is **intentionally broken** to test the ArgoCD notification system: + +**Action:** No fix needed! The system is working as designed: +- ✅ ArgoCD detects the failure +- ✅ ArgoCD Notifications sends webhook to GitHub +- ✅ GitHub Actions workflow creates this issue automatically +- ✅ Issue contains detailed error information + +**Recommendation:** Add a label like \`wontfix\` or \`expected-failure\` to this issue to document that this is intentional behavior for testing purposes. + +--- + +## 📊 Additional Context + +### What Makes This Error Difficult to Debug + +1. **Generic Error Message:** "one or more synchronization tasks are not valid" doesn't immediately point to the specific field +2. **Validation Failure:** The error occurs during manifest validation, not during actual deployment +3. **No Kubernetes Events:** Since the manifest never reaches the cluster, there are no pod-level events to inspect + +### Validation Test Performed + +I validated the YAML file and confirmed the error: +\`\`\` +Document 8: order-service Deployment +apiVersion: apps/v +❌ ERROR: Invalid apiVersion! + Expected: apps/v1 + Found: apps/v +\`\`\` + +### Similar Issues to Watch For + +This type of error ("one or more synchronization tasks are not valid") can also be caused by: +- Missing required fields in manifests +- Invalid Kubernetes resource API versions +- Malformed YAML syntax +- Resources not available in the target Kubernetes version +- RBAC permission issues (less common with this specific error) + +--- + +## 🎯 Recommended Next Steps + +1. **Determine Intent:** Clarify whether this application is meant to fail (for testing) or should be fixed +2. **Take Action:** Based on intent, choose one of the three options above +3. **Monitor:** After any fix, watch the ArgoCD application status: \`argocd app get 2-broken-apps\` +4. **Close Issue:** Once resolved (or marked as expected), close this issue with appropriate labels + +--- + +**Investigation Completed:** ${new Date().toISOString()} +**Analyst:** GitHub Copilot Agent`; + + await github.rest.issues.createComment({ + owner: context.repo.owner, + repo: context.repo.repo, + issue_number: issueNumber, + body: rcaComment + }); + + console.log(`✅ Posted RCA comment to issue #${issueNumber}`); From f0fc35e64be3338224feffb649c3cb804c9b9d0e Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Tue, 3 Feb 2026 21:25:40 +0000 Subject: [PATCH 3/4] Complete RCA investigation with documentation and workflow Co-authored-by: dcasati <3240777+dcasati@users.noreply.github.com> --- README-RCA.md | 68 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 README-RCA.md diff --git a/README-RCA.md b/README-RCA.md new file mode 100644 index 0000000..862a84e --- /dev/null +++ b/README-RCA.md @@ -0,0 +1,68 @@ +# ArgoCD Deployment Failure - Root Cause Analysis Complete + +## Investigation Status: ✅ COMPLETE + +The root cause analysis for GitHub Issue #12 (`🚨 ArgoCD Deployment Failed: 2-broken-apps`) has been completed. + +## Summary + +**Root Cause:** Invalid `apiVersion` field in Kubernetes manifest +- **File:** `apps/broken-aks-store-all-in-one.yaml` (line 178) +- **Error:** `apiVersion: apps/v` should be `apiVersion: apps/v1` +- **Repository:** https://github.com/dcasati/argocd-notification-examples.git +- **Commit:** `8cd04df204028ff78613a69fdb630625864037c6` + +This error was **intentionally introduced** for testing the ArgoCD notification system. + +## Posting the RCA to GitHub Issue + +The complete root cause analysis needs to be posted as a comment on Issue #12. Due to permission constraints in the automated environment, this requires manual action. + +### Option 1: Run the Workflow (Recommended) + +A GitHub Actions workflow has been created to post the RCA: + +```bash +# Using GitHub CLI +gh workflow run post-argocd-rca.yml \ + --ref copilot/fix-argocd-deployment-issue-yet-again \ + -f issue_number=12 +``` + +**Or via GitHub Web UI:** +1. Go to: https://github.com/DevExpGbb/agentic-platform-engineering/actions +2. Click on "Post ArgoCD RCA to Issue" workflow +3. Click "Run workflow" +4. Select branch: `copilot/fix-argocd-deployment-issue-yet-again` +5. Enter issue number: `12` +6. Click "Run workflow" + +### Option 2: Manual Comment (Alternative) + +If you prefer to post manually, the complete RCA text is embedded in the workflow file: +`.github/workflows/post-argocd-rca.yml` + +Copy the content from the `rcaComment` variable and post it as a comment on Issue #12. + +## Key Findings + +1. **The deployment failure is INTENTIONAL** - designed to test ArgoCD notifications +2. **System is working correctly:** + - ✅ ArgoCD detected the invalid manifest + - ✅ Notifications were sent via webhook + - ✅ GitHub Actions created the issue automatically + - ✅ Issue contains appropriate troubleshooting information + +3. **Three remediation options provided:** + - Fix the source repository + - Use a different (valid) repository + - Accept as expected behavior for testing + +## Files Modified + +- `.github/workflows/post-argocd-rca.yml` - Workflow to post RCA to issue +- `README-RCA.md` - This file + +## Investigation Complete + +No code changes are needed in this repository. The ArgoCD notification system is functioning as designed. The intentionally broken application successfully triggered the notification workflow and created an appropriate issue for investigation. From 6cc687c75c6b668834a793d562d50ae987c865b8 Mon Sep 17 00:00:00 2001 From: "copilot-swe-agent[bot]" <198982749+Copilot@users.noreply.github.com> Date: Tue, 3 Feb 2026 21:26:24 +0000 Subject: [PATCH 4/4] Clean up: remove documentation file per instructions Co-authored-by: dcasati <3240777+dcasati@users.noreply.github.com> --- README-RCA.md | 68 --------------------------------------------------- 1 file changed, 68 deletions(-) delete mode 100644 README-RCA.md diff --git a/README-RCA.md b/README-RCA.md deleted file mode 100644 index 862a84e..0000000 --- a/README-RCA.md +++ /dev/null @@ -1,68 +0,0 @@ -# ArgoCD Deployment Failure - Root Cause Analysis Complete - -## Investigation Status: ✅ COMPLETE - -The root cause analysis for GitHub Issue #12 (`🚨 ArgoCD Deployment Failed: 2-broken-apps`) has been completed. - -## Summary - -**Root Cause:** Invalid `apiVersion` field in Kubernetes manifest -- **File:** `apps/broken-aks-store-all-in-one.yaml` (line 178) -- **Error:** `apiVersion: apps/v` should be `apiVersion: apps/v1` -- **Repository:** https://github.com/dcasati/argocd-notification-examples.git -- **Commit:** `8cd04df204028ff78613a69fdb630625864037c6` - -This error was **intentionally introduced** for testing the ArgoCD notification system. - -## Posting the RCA to GitHub Issue - -The complete root cause analysis needs to be posted as a comment on Issue #12. Due to permission constraints in the automated environment, this requires manual action. - -### Option 1: Run the Workflow (Recommended) - -A GitHub Actions workflow has been created to post the RCA: - -```bash -# Using GitHub CLI -gh workflow run post-argocd-rca.yml \ - --ref copilot/fix-argocd-deployment-issue-yet-again \ - -f issue_number=12 -``` - -**Or via GitHub Web UI:** -1. Go to: https://github.com/DevExpGbb/agentic-platform-engineering/actions -2. Click on "Post ArgoCD RCA to Issue" workflow -3. Click "Run workflow" -4. Select branch: `copilot/fix-argocd-deployment-issue-yet-again` -5. Enter issue number: `12` -6. Click "Run workflow" - -### Option 2: Manual Comment (Alternative) - -If you prefer to post manually, the complete RCA text is embedded in the workflow file: -`.github/workflows/post-argocd-rca.yml` - -Copy the content from the `rcaComment` variable and post it as a comment on Issue #12. - -## Key Findings - -1. **The deployment failure is INTENTIONAL** - designed to test ArgoCD notifications -2. **System is working correctly:** - - ✅ ArgoCD detected the invalid manifest - - ✅ Notifications were sent via webhook - - ✅ GitHub Actions created the issue automatically - - ✅ Issue contains appropriate troubleshooting information - -3. **Three remediation options provided:** - - Fix the source repository - - Use a different (valid) repository - - Accept as expected behavior for testing - -## Files Modified - -- `.github/workflows/post-argocd-rca.yml` - Workflow to post RCA to issue -- `README-RCA.md` - This file - -## Investigation Complete - -No code changes are needed in this repository. The ArgoCD notification system is functioning as designed. The intentionally broken application successfully triggered the notification workflow and created an appropriate issue for investigation.