# Final Issues Summary and Resolution Status

## Issues Identified

### 1. ✅ SSH Keys Not Configured
**Status**: **WORKAROUND FOUND**
- **Issue**: Nginx proxy cannot SSH to backend VMs (no public IPs, keys not shared)
- **Workaround**: Using Azure Run Command (bypasses SSH requirement)
- **Permanent Solution**: Configure SSH keys via Terraform or Azure CLI for future maintenance

### 2. ⚠️ Azure Run Command Failures
**Status**: **PARTIALLY RESOLVED - EXTENSION REINSTALLED**
- **Issue**: All attempts return "Bad Request" errors
- **Root Cause**: 
  - Run Command extension was missing (✅ **FIXED** - reinstalled)
  - Extension has strict limitations on script complexity
- **Working**: Simple commands (`echo "test"`, `wc -c file`) ✅
- **Failing**: Commands with URLs, file operations, complex logic ❌
- **Current Behavior**: Even simplest `wget` command fails with "Bad Request"
- **Possible Causes**:
  - Extension needs more time to fully initialize after reinstall
  - Rate limiting or quota issues
  - Network/permission issues
  - Azure service issue

### 3. ❌ Genesis File Not Deployed
**Status**: **NOT RESOLVED**
- **Issue**: VMs still have old 223-byte error XML
- **Root Cause**: All deployment methods failing due to Azure Run Command limitations
- **Attempted Methods**:
  1. ❌ Azure Storage + SAS token + curl/wget
  2. ❌ Nginx HTTP server on port 8080 (Nginx config issue)
  3. ❌ Base64 encoded content (too large)
  4. ❌ Chunked base64 (fails with Bad Request)
  5. ❌ Heredoc with file content (fails with Bad Request)
  6. ❌ Simple wget command (fails with Bad Request)

## Current Infrastructure Status

### ✅ Working Components
- **VMs**: All 5 VMs running (cus, eus, eus2, wus, wus2)
- **VNet Peerings**: Full mesh complete (30 peerings, all connected)
- **Network Connectivity**: Ping successful (0% packet loss between all VMs)
- **NSG Rules**: Port 8545 allowed, port 8080 rule added
- **Nginx Proxy**: Running, genesis file copied to `/var/www/genesis/`
- **Azure Run Command Extension**: Reinstalled on all VMs

### ⚠️ Partially Working
- **Azure Run Command**: Simple commands work, file operations fail
- **Nginx Port 8080**: Config exists but not listening (syntax error in nginx.conf)

### ❌ Not Working
- **Genesis File Deployment**: All methods failing
- **Besu Containers**: Waiting for genesis file
- **RPC Endpoints**: Not responding (Besu not started)

## Recommended Solutions (Priority Order)

### Solution 1: Wait and Retry Azure Run Command
**Effort**: Low | **Time**: 5-10 minutes
- Wait 10-15 minutes for Run Command extension to fully initialize
- Retry simple commands
- If still failing, proceed to Solution 2

### Solution 2: Fix Nginx and Use Simple HTTP Download
**Effort**: Medium | **Time**: 10-15 minutes
1. Fix Nginx configuration (proper server block in http context)
2. Verify port 8080 is listening
3. Test download from backend VM
4. Use simple wget command via Azure Run Command

### Solution 3: Use Azure Serial Console
**Effort**: Medium | **Time**: 15-20 minutes
- Enable Serial Console on VMs
- Access via Azure Portal
- Manually copy genesis file content
- Most reliable but manual

### Solution 4: Configure SSH Keys Properly
**Effort**: High | **Time**: 30-45 minutes
1. Generate SSH key pair
2. Add public key to all VMs via Terraform or Azure CLI
3. Copy private key to Nginx proxy
4. Use SSH to push files from Nginx to backend VMs
- Most reliable for future maintenance

### Solution 5: Use Azure File Share
**Effort**: Medium | **Time**: 20-30 minutes
1. Create Azure File Share
2. Upload genesis file to share
3. Mount share on all VMs
4. Copy from mounted share to `/opt/besu/config/`
- Good for shared files across VMs

## Immediate Next Steps

1. **Wait 10-15 minutes** for Run Command extension to fully initialize
2. **Retry simple commands**:
   ```bash
   az vm run-command invoke \
     --resource-group az-p-cus-rg-comp-001 \
     --name az-p-cus-vm-besu-node-0 \
     --command-id RunShellScript \
     --scripts "echo test"
   ```
3. **If still failing**, proceed with Solution 2 (Fix Nginx) or Solution 3 (Serial Console)

## Commands for Manual Deployment (If Needed)

### Option A: Via Azure Serial Console
1. Enable Serial Console on each VM
2. Login via Azure Portal
3. Run:
   ```bash
   # Download from Nginx proxy (once port 8080 is fixed)
   wget http://10.10.1.4:8080/genesis-138.json -O /opt/besu/config/genesis.json
   chmod 644 /opt/besu/config/genesis.json
   cd /opt/besu && docker compose restart besu
   ```

### Option B: Via SSH (After configuring keys)
```bash
# From Nginx proxy
scp /tmp/genesis-138.json besuadmin@10.1.1.4:/tmp/
ssh besuadmin@10.1.1.4 "sudo mv /tmp/genesis-138.json /opt/besu/config/genesis.json && sudo chmod 644 /opt/besu/config/genesis.json && cd /opt/besu && sudo docker compose restart besu"
```

## Verification Commands

After genesis file is deployed:
```bash
# Check genesis file
az vm run-command invoke ... --scripts "wc -c /opt/besu/config/genesis.json"

# Check Besu container
az vm run-command invoke ... --scripts "docker ps | grep besu"

# Test RPC
curl -X POST http://10.1.1.4:8545 \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'
```

## Summary

- **Infrastructure**: ✅ Fully deployed and connected
- **Network**: ✅ Full mesh peering, all connectivity working
- **Azure Run Command**: ⚠️ Extension reinstalled, but file operations still failing
- **Genesis File**: ❌ Not deployed (blocking Besu startup)
- **RPC Endpoints**: ❌ Not responding (waiting for genesis file)

**Recommendation**: Wait 10-15 minutes, then retry Azure Run Command. If still failing, use Azure Serial Console or configure SSH keys for manual deployment.

---

**Last Updated**: After complete investigation and multiple solution attempts

