Sankofa/docs/archive/status/GUEST_AGENT_VERIFICATION_ENHANCEMENT_COMPLETE.md

Guest Agent Verification Enhancement - Complete ✅

Date: 2025-12-11
Status: ✅ COMPLETE

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Summary

Successfully enhanced all 29 VM templates with comprehensive guest agent verification commands that match the manual check script functionality.

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What Was Completed

1. Enhanced VM Templates ✅

29 VM templates updated with detailed guest agent verification:

Template Files Enhanced:

• ✅ basic-vm.yaml (manually enhanced first)
• ✅ medium-vm.yaml
• ✅ large-vm.yaml
• ✅ nginx-proxy-vm.yaml
• ✅ cloudflare-tunnel-vm.yaml
• ✅ All 8 Phoenix VMs:
  • as4-gateway.yaml
  • business-integration-gateway.yaml
  • codespaces-ide.yaml
  • devops-runner.yaml
  • dns-primary.yaml
  • email-server.yaml
  • financial-messaging-gateway.yaml
  • git-server.yaml
• ✅ All 16 SMOM-DBIS-138 VMs:
  • blockscout.yaml
  • management.yaml
  • monitoring.yaml
  • rpc-node-01.yaml through rpc-node-04.yaml
  • sentry-01.yaml through sentry-04.yaml
  • services.yaml
  • validator-01.yaml through validator-04.yaml

2. Enhanced Verification Features ✅

Each template now includes:

1. Package Installation Verification

   • Visual indicators (✅) for each installed package
   • Explicit error messages if packages are missing
   • Verification loop for all required packages

2. Explicit qemu-guest-agent Package Check

   • Uses dpkg -l | grep qemu-guest-agent to show package details
   • Matches the verification commands from check script
   • Shows exact package version and status

3. Automatic Installation Fallback

   • If package is missing, automatically installs it
   • Runs apt-get update && apt-get install -y qemu-guest-agent
   • Ensures package is available even if cloud-init package list fails

4. Enhanced Service Status Verification

   • Retry logic (30 attempts with 1-second intervals)
   • Shows detailed status output with systemctl status --no-pager -l
   • Automatic restart attempt if service fails to start
   • Clear success/failure indicators

5. Better Error Handling

   • Clear warnings and error messages
   • Visual indicators (✅, ❌, ⚠️) for quick status identification
   • Detailed logging for troubleshooting

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Scripts Created

1. scripts/enhance-guest-agent-verification.py ✅

• Python script to batch-update all VM templates
• Preserves YAML formatting
• Creates automatic backups
• Handles edge cases and errors gracefully

2. scripts/check-guest-agent-installed-vm-100.sh ✅

• Comprehensive check script for VM 100
• Can be run on Proxmox node
• Provides detailed verification output
• Includes alternative check methods

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Verification Commands Added

The enhanced templates now include these verification commands in the runcmd section:

# Verify packages are installed
echo "=========================================="
echo "Verifying required packages are installed..."
echo "=========================================="
for pkg in qemu-guest-agent curl wget net-tools chrony unattended-upgrades; do
  if ! dpkg -l | grep -q "^ii.*$pkg"; then
    echo "ERROR: Package $pkg is not installed"
    exit 1
  fi
  echo "✅ Package $pkg is installed"
done

# Verify qemu-guest-agent package details
echo "=========================================="
echo "Checking qemu-guest-agent package details..."
echo "=========================================="
if dpkg -l | grep -q "^ii.*qemu-guest-agent"; then
  echo "✅ qemu-guest-agent package IS installed"
  dpkg -l | grep qemu-guest-agent
else
  echo "❌ qemu-guest-agent package is NOT installed"
  echo "Attempting to install..."
  apt-get update
  apt-get install -y qemu-guest-agent
fi

# Enable and start QEMU Guest Agent
systemctl enable qemu-guest-agent
systemctl start qemu-guest-agent

# Verify guest agent service is running
for i in {1..30}; do
  if systemctl is-active --quiet qemu-guest-agent; then
    echo "✅ QEMU Guest Agent service IS running"
    systemctl status qemu-guest-agent --no-pager -l
    exit 0
  fi
  echo "Waiting for QEMU Guest Agent to start... ($i/30)"
  sleep 1
done

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Benefits

For New VM Deployments:

1. Automatic Verification: All new VMs will verify guest agent installation during boot
2. Self-Healing: If package is missing, it will be automatically installed
3. Clear Status: Detailed logging shows exactly what's happening
4. Consistent Behavior: All VMs use the same verification logic

For Troubleshooting:

1. Easy Diagnosis: Cloud-init logs will show clear status messages
2. Retry Logic: Service will automatically retry if it fails to start
3. Detailed Output: Full systemctl status output for debugging

For Operations:

1. Reduced Manual Work: No need to manually check each VM
2. Consistent Configuration: All VMs configured identically
3. Better Monitoring: Clear indicators in logs for monitoring systems

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Next Steps

Immediate (VM 100):

1. Check VM 100 Guest Agent Status

   # Run on Proxmox node
   qm guest exec 100 -- dpkg -l | grep qemu-guest-agent
   qm guest exec 100 -- systemctl status qemu-guest-agent
   

2. If Not Installed: Install via SSH or console

   sudo apt-get update
   sudo apt-get install -y qemu-guest-agent
   sudo systemctl enable --now qemu-guest-agent
   

3. Force Restart if Needed (see docs/VM_100_FORCE_RESTART.md)

Future Deployments:

1. Deploy New VMs: All new VMs will automatically verify guest agent
2. Monitor Cloud-Init Logs: Check /var/log/cloud-init-output.log for verification status
3. Verify Service: Use qm guest exec to verify guest agent is working

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Files Modified

• ✅ examples/production/basic-vm.yaml
• ✅ examples/production/medium-vm.yaml
• ✅ examples/production/large-vm.yaml
• ✅ examples/production/nginx-proxy-vm.yaml
• ✅ examples/production/cloudflare-tunnel-vm.yaml
• ✅ examples/production/phoenix/*.yaml (8 files)
• ✅ examples/production/smom-dbis-138/*.yaml (16 files)

Scripts Created

• ✅ scripts/enhance-guest-agent-verification.py
• ✅ scripts/enhance-guest-agent-verification.sh (shell wrapper)
• ✅ scripts/check-guest-agent-installed-vm-100.sh

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Verification

To verify the enhancement worked:

1. Check a template file:

   grep -A 5 "Checking qemu-guest-agent package details" examples/production/basic-vm.yaml
   

2. Deploy a test VM and check cloud-init logs:

   # After VM boots
   qm guest exec <VMID> -- cat /var/log/cloud-init-output.log | grep -A 10 "qemu-guest-agent"
   

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Status: ✅ ALL TEMPLATES ENHANCED
Next Action: Verify VM 100 guest agent installation status