Root cause analysis: ArgoCD 2-broken-apps deployment failure

ARGOCD_ISSUE_12_COMMENT.md

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+# Action Required: Post Comment to Issue #12
+
+**Issue URL:** https://github.com/DevExpGbb/agentic-platform-engineering/issues/12
+
+**Instructions:** Please copy the content below and post it as a comment on Issue #12.
+
+---
+
+## 🔍 Root Cause Analysis Complete
+
+I've investigated the ArgoCD deployment failure for the `2-broken-apps` application and identified the root causes.
+
+### 📋 Summary
+
+The deployment is failing because the Kubernetes manifests in the source repository (`https://github.com/dcasati/argocd-notification-examples.git`) contain **two critical errors** that prevent successful synchronization.
+
+---
+
+## 🐛 Issues Identified
+
+### 1. **Invalid API Version (Line 178)**
+**File:** `apps/broken-aks-store-all-in-one.yaml`  
+**Issue:** Truncated `apiVersion` field
+```yaml
+apiVersion: apps/v    # ❌ INVALID - truncated
+kind: Deployment
+metadata:
+  name: order-service
+```
+
+**Impact:** This makes the manifest syntactically invalid, causing ArgoCD to reject it during validation. Kubernetes cannot parse this resource definition.
+
+---
+
+### 2. **Incorrect Container Image Name (Line 475)**
+**File:** `apps/broken-aks-store-all-in-one.yaml`  
+**Issue:** Typo in the image name
+```yaml
+containers:
+  - name: store-admin
+    image: ghcr.io/azure-samples/aks-store-demo/store-dmin:2.1.0  # ❌ Typo: "store-dmin" instead of "store-admin"
+```
+
+**Impact:** This causes `ImagePullBackOff` errors because the image `store-dmin` doesn't exist in the container registry. The pod will never become ready, keeping the application in a `Degraded` health status.
+
+---
+
+## 🔧 Remediation Recommendations
+
+### Option 1: Fix the Source Repository (Recommended)
+Since the application references an external repository, the best solution is to fix the issues at the source:
+
+1. **Fork or contact the repository owner** (`dcasati/argocd-notification-examples`)
+2. **Apply these fixes:**
+   ```yaml
+   # Fix 1: Line 178
+   - apiVersion: apps/v
+   + apiVersion: apps/v1
+
+   # Fix 2: Line 475
+   - image: ghcr.io/azure-samples/aks-store-demo/store-dmin:2.1.0
+   + image: ghcr.io/azure-samples/aks-store-demo/store-admin:2.1.0
+   ```
+3. **Update the ArgoCD application** to point to the fixed version (if using a fork)
+
+### Option 2: Use a Different Source Repository
+If you cannot modify the external repository:
+
+1. **Create a local copy** of the manifests in your repository
+2. **Apply the fixes** mentioned above
+3. **Update** `Act-3/argocd-test-app.yaml` to point to your local manifests:
+   ```yaml
+   spec:
+     source:
+       repoURL: https://github.com/DevExpGbb/agentic-platform-engineering.git
+       targetRevision: main
+       path: Act-3/manifests  # Your fixed manifests
+   ```
+
+### Option 3: Use Kustomize Overlays
+Apply patches without modifying the source:
+
+1. **Create a Kustomize overlay** in your repository that patches these issues
+2. **Update the ArgoCD application** to use Kustomize:
+   ```yaml
+   spec:
+     source:
+       repoURL: https://github.com/DevExpGbb/agentic-platform-engineering.git
+       targetRevision: main
+       path: Act-3/kustomize-overlay
+   ```
+
+---
+
+## ✅ Verification Steps
+
+After applying the fix:
+
+1. **Sync the application:**
+   ```bash
+   argocd app sync 2-broken-apps
+   ```
+
+2. **Monitor the sync status:**
+   ```bash
+   argocd app get 2-broken-apps
+   ```
+
+3. **Verify pods are running:**
+   ```bash
+   kubectl get pods -n default
+   kubectl get pods -n default | grep -E "(order-service|store-admin)"
+   ```
+
+4. **Check for healthy status:**
+   - All pods should be in `Running` state
+   - ArgoCD health status should be `Healthy`
+   - ArgoCD sync status should be `Synced`
+
+---
+
+## 📝 Additional Notes
+
+- The repository `dcasati/argocd-notification-examples` appears to be intentionally broken for testing ArgoCD notifications (hence the filename `broken-aks-store-all-in-one.yaml`)
+- This is actually working as designed - it's a test application meant to trigger notification workflows
+- If this is a test/demo application, **no action is required** unless you want to test successful deployments
+
+---
+
+## 🎯 Recommendation
+
+**If this is a production application:** Follow **Option 1** or **Option 2** above.
+
+**If this is a test/demo for ArgoCD notifications:** This is working as intended. The broken manifests successfully trigger your notification workflow, which created this issue automatically. Consider:
+- Keeping it as-is for continued testing of notification workflows
+- Adding labels or documentation to clarify this is a test application
+- Creating a separate application with valid manifests for production use cases
+
+---
+
+*Analysis completed by GitHub Copilot Agent*