# Poimen Memory — ArgoCD Tracking & Deployment

## Status

✅ **Poimen Memory is tracked in homelab ArgoCD**  
✅ **All config files in place**  
✅ **Ready to deploy on next homelab sync**

---

## Architecture

```
Homelab ArgoCD Root
    ↓ (wave 7)
71-poimen-memory.yaml (homelab repo)
    ↓ syncs k8s/argocd/ from Poimen Memory repo
Poimen Memory k8s/argocd/
    ├── kustomization.yaml
    └── memory-database-app.yaml
         ↓ syncs k8s/infra/databases/
    Memory CNPG Cluster (wave 2 within Poimen Memory)
```

---

## Configuration Files

### 1. Homelab Repository
**Location:** `/Users/rockliang/workplace/homelab/k8s/argocd/`

**File 1: `projects/homelab-project.yaml` (UPDATED)**
```yaml
sourceRepos:
  - https://github.com/Riotpiaole/riotpiao.homelab.com.git
  - https://github.com/Riotpiaole/Poimen-memory.git  # ← ADDED
  - https://forgejo.riotpiao.com/rock/*
  # ... public Helm repos
```
**What it does:** Authorizes ArgoCD to sync from Poimen Memory repo

**File 2: `apps/71-poimen-memory.yaml` (NEW)**
```yaml
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: poimen-memory-root
  annotations:
    argocd.argoproj.io/sync-wave: "7"
spec:
  project: homelab
  source:
    repoURL: https://github.com/Riotpiaole/Poimen-memory.git
    path: k8s/argocd
  destination:
    server: https://kubernetes.default.svc
```
**What it does:** Root application that syncs the Poimen Memory app-of-apps

### 2. Poimen Memory Repository
**Location:** `/Users/rockliang/workplace/Poimen/memory/k8s/argocd/`

**File 1: `kustomization.yaml` (NEW)**
```yaml
apiVersion: kustomize.config.k8s.io/v1beta1
kind: Kustomization
resources:
  - memory-database-app.yaml
```
**What it does:** Declares the application manifests for Poimen Memory

**File 2: `memory-database-app.yaml` (NEW)**
```yaml
apiVersion: argoproj.io/v1alpha1
kind: Application
metadata:
  name: poimen-memory-database
  annotations:
    argocd.argoproj.io/sync-wave: "2"  # Wave 2 = databases
spec:
  project: homelab
  source:
    repoURL: https://github.com/Riotpiaole/Poimen-memory.git
    path: k8s/infra/databases
  destination:
    server: https://kubernetes.default.svc
```
**What it does:** Syncs the CNPG Postgres cluster config from `k8s/infra/databases/`

---

## Deployment Wave Order

```
Wave 0: Homelab Root (homelab-root.yaml)
    ↓
Wave 2: Databases (k8s/infra/databases/)
    ├── 40-data.yaml (homelab databases)
    │   ├── authentik-db
    │   ├── temporal-db
    │   └── memory-db (from k8s/infra/databases/kustomization.yaml)
    └── 71-poimen-memory.yaml syncs its own wave 2 (memory-database-app)
    ↓
Wave 7: Applications
    ├── Poimen Memory Root (poimen-memory-root)
    ├── Poimen Services (future)
    └── Other applications
```

---

## Deployment Checklist

### Prerequisites
- [ ] Poimen Memory repo exists on GitHub at `Riotpiaole/Poimen-memory`
- [ ] Main branch is up-to-date with:
  - [ ] `k8s/infra/databases/memory-db.yaml`
  - [ ] `k8s/infra/databases/kustomization.yaml`
  - [ ] `k8s/argocd/memory-database-app.yaml`
  - [ ] `k8s/argocd/kustomization.yaml`

### Homelab Sync
- [ ] Push homelab changes:
  ```bash
  cd ~/workplace/homelab
  git add k8s/argocd/projects/homelab-project.yaml
  git add k8s/argocd/apps/71-poimen-memory.yaml
  git commit -m "feat: add Poimen Memory to ArgoCD tracking (M2.2)"
  git push
  ```
- [ ] Trigger homelab sync (ArgoCD UI or CLI)
  ```bash
  argocd app sync homelab-root
  ```
- [ ] Verify wave 7 (Poimen Memory Root app appears)

### Deployment
- [ ] Wait for wave 2 (databases sync)
  ```bash
  kubectl get app -n argocd | grep poimen-memory
  # Should show: poimen-memory-root, poimen-memory-database
  ```
- [ ] Verify cluster health
  ```bash
  kubectl get clusters -n poimen
  # NAME        PHASE       INSTANCES
  # memory-db   Healthy     3/3
  ```

---

## Troubleshooting

### App not appearing in ArgoCD
```bash
# Check if homelab-root synced the new app
argocd app get homelab-root
# Look for poimen-memory-root in the "Application Details"

# Check AppProject allows the repo
kubectl get appproject homelab -n argocd -o yaml | grep -A5 sourceRepos
# Should include: https://github.com/Riotpiaole/Poimen-memory.git
```

### Cluster not deploying
```bash
# Check app sync status
argocd app get poimen-memory-root
# Look for sync status and any error messages

# Check kustomize
kubectl kustomize /Users/rockliang/workplace/Poimen/memory/k8s/infra/databases/
# Should output memory-db Namespace + Cluster CR

# Check CNPG operator
kubectl get crds | grep postgresql
# Should show postgresql.cnpg.io
```

### CNPG cluster pending
```bash
# Check cluster status
kubectl describe cluster memory-db -n poimen

# Check node affinity
kubectl get nodes -L kubernetes.io/hostname

# Check storage class
kubectl get storageclass longhorn-cnpg
```

---

## Next Steps

1. **Push Poimen Memory repo to GitHub** (required for ArgoCD to access it)
   ```bash
   cd ~/workplace/Poimen/memory
   git remote add origin https://github.com/Riotpiaole/Poimen-memory.git
   git push -u origin main
   ```

2. **Push homelab changes**
   ```bash
   cd ~/workplace/homelab
   git add k8s/argocd/
   git commit -m "feat: add Poimen Memory to ArgoCD tracking"
   git push
   ```

3. **Sync homelab ArgoCD**
   - ArgoCD detects changes automatically (or manual sync in UI)
   - Wave 7 app appears and syncs wave 2 (databases)

4. **Verify CNPG cluster** (M2.2 complete)
   ```bash
   kubectl get clusters -n poimen
   ```

5. **Create Poimen Memory app deployment** (next phase, M3)
   - Deployment manifest that reads `memory-db-app` secret
   - Helm chart or StatefulSet for HTTP API server
   - Runs PgRepo against `memory-db-rw.poimen.svc.cluster.local`

---

## Files Modified

**Homelab repo:**
- ✅ `k8s/argocd/projects/homelab-project.yaml` — Added Poimen Memory repo
- ✅ `k8s/argocd/apps/71-poimen-memory.yaml` — New root app

**Poimen Memory repo:**
- ✅ `k8s/argocd/kustomization.yaml` — New app-of-apps root
- ✅ `k8s/argocd/memory-database-app.yaml` — Database application
- ✅ `k8s/infra/databases/memory-db.yaml` — CNPG cluster manifest
- ✅ `k8s/infra/databases/kustomization.yaml` — Kustomization

---

## Status

✅ **M2.2 CNPG Postgres** — Complete + ArgoCD tracked  
✅ **Ready to deploy** — Push repos and sync homelab  
⏳ **M3 Application** — Next: Poimen Memory app deployment