prometheus_grafana_hub/
├── dashboards/                        # Grafana dashboard JSON files
│   ├── infrastructure-overview.json   # Fleet-wide status of all devices
│   ├── node-details.json              # Detailed per-host metrics
│   ├── synology-monitoring.json       # Synology NAS SNMP metrics
│   └── node-exporter.json             # Full Node Exporter dashboard
├── snmp-configs/                      # SNMP Exporter configurations
│   └── snmp_synology.yml              # Synology NAS SNMP config
├── docker-compose/                    # Docker compose files for remote hosts
│   ├── atlantis-docker-compose.yml
│   ├── calypso-docker-compose.yml
│   ├── setillo-docker-compose.yml
│   ├── concord-nuc-docker-compose.yml
│   └── guava-docker-compose-node-exporter.yml
├── docker-compose.homelab-vm.yml      # Main stack compose (Homelab VM)
├── prometheus.yml                     # Prometheus scrape configuration
├── Dockerfile                         # Custom Prometheus image (if needed)
└── README.md

Dashboards

Dashboard	UID	Description
Infrastructure Overview	`infrastructure-overview-v2`	Fleet status, CPU, Memory, Disk, Network for all hosts
Node Details	`node-details-v2`	Per-REDACTED_APP_PASSWORD CPU breakdown, per-core usage, memory details, disk I/O
Synology Monitoring	`synology-dashboard-v2`	Synology NAS CPU, Memory, Load, Uptime via SNMP
Node Exporter Full	`rYdddlPWk`	Comprehensive node exporter metrics

SNMP Configuration

The snmp_synology.yml config is deployed to each Synology NAS at:

Atlantis: /volume2/metadata/docker/snmp/snmp.yml
Calypso: /volume1/docker/snmp/snmp.yml
Setillo: /volume1/docker/snmp/snmp.yml

Monitored Hosts

Node Exporter Targets

homelab-node (100.67.40.126:9100)
atlantis-node (100.83.230.112:9100)
calypso-node (100.103.48.78:9100)
setillo-node (100.125.0.20:9100)
concord-nuc-node (100.72.55.21:9100)
proxmox-node (100.87.12.28:9100)
truenas-node (100.75.252.64:9100)
raspberry-pis (100.77.151.40:9100)

SNMP Targets (Synology)

atlantis-snmp (100.83.230.112)
calypso-snmp (100.103.48.78)
setillo-snmp (100.125.0.20)

Deployment

Homelab VM (Main Stack)

The main monitoring stack runs on Homelab VM:

cd ~/docker/monitoring

# Using the compose file from this repo:
docker-compose -f docker-compose.homelab-vm.yml up -d

# Or if already deployed:
docker-compose up -d

Services:

Grafana: http://homelab:3300 (admin / set via GF_SECURITY_ADMIN_PASSWORD)
Prometheus: http://homelab:9090
Node Exporter: Runs in host network mode on port 9100

Remote Hosts

Each remote host runs node-exporter and/or snmp-exporter as specified in the docker-compose/ folder.