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Monitoring

Observability and health monitoring for the homelab.

SUSE Observability​

Deploy the SUSE Observability stack:

bash Scripts/21_install_observability.sh

This deploys the observability components onto the observability cluster (${IP_PREFIX}.220–223), which runs as VMs inside Harvester.

Harvester Cluster Health​

# Node status
kubectl --kubeconfig ~/.kube/harvester.yaml get nodes

# Longhorn storage health
kubectl --kubeconfig ~/.kube/harvester.yaml -n longhorn-system get pods

# Check for any nodes Not Ready
kubectl --kubeconfig ~/.kube/harvester.yaml get nodes | grep -v Ready

Rancher Manager Health​

# Rancher pods
kubectl --kubeconfig ~/.kube/rancher.yaml -n cattle-system get pods

# Check Rancher is reachable
curl -sk https://rancher.${BASE_DOMAIN}/ping

Infrastructure Services​

# DNS resolution
dig @${IP_PREFIX}.8 harvester.${BASE_DOMAIN}
dig @${IP_PREFIX}.8 rancher.${BASE_DOMAIN}

# HAProxy stats (if enabled)
curl http://${IP_PREFIX}.93:9000/stats

# DHCP leases
ssh ${IP_PREFIX}.8 cat /var/lib/dhcp/dhcpd.leases

NeuVector​

After deploying 20_install_security.sh, NeuVector is accessible via the Rancher UI under Security → NeuVector, or directly at its ingress URL.

Key things to monitor in NeuVector:

  • Network connections graph — baseline normal traffic
  • CVE scan results — check for critical vulnerabilities in running containers
  • Policy mode — start in Monitor mode before switching to Protect