Node Exporter provides host metrics to Prometheus.
This page documents the node-exporter service.
- Container:
node-exporter
- Image:
prom/node-exporter:latest
- Stack: Logs Stack
- Docker network:
logs_loki
- Restart policy:
unless-stopped
- No public host port is exposed
¶ Config and Data Paths
- Root filesystem mount:
/ -> /host
- Internal listener on
9100/tcp
- Prometheus scrapes the job
node-exporter
¶ Authentication and Secret Locations
- Node Exporter exposes public metrics; no secrets are stored
- Keep the root mount available so filesystem metrics remain accurate
- Use
docker logs node-exporter if scrapes go missing from Prometheus
¶ Monitoring and Logs
- Docker logging driver is
json-file
- No healthcheck is configured, so the host must stay reachable for metrics
¶ Backup and Restore
- There is no persistent data besides the container itself
¶ Failure Modes and Recovery
- If
/host becomes unreadable the exporter stops reporting disk stats while continuing to run