Torjus Håkestad
89d0a6f358
Dashboard for monitoring systemd across the fleet: - Summary stats: failed/active/inactive units, restarts, timers - Failed units table (shows any units in failed state) - Service restarts table (top 15 services by restart count) - Active units per host bar chart - NixOS upgrade timer table with last trigger time - Backup timers table (restic jobs) - Service restarts over time chart - Hostname filter to focus on specific hosts Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
554 lines
16 KiB
JSON
554 lines
16 KiB
JSON
{
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"uid": "systemd-homelab",
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"title": "Systemd Services - Homelab",
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"tags": ["systemd", "services", "homelab"],
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"timezone": "browser",
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"schemaVersion": 39,
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"version": 1,
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"refresh": "1m",
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"time": {
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"from": "now-24h",
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"to": "now"
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},
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"templating": {
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"list": [
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{
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"name": "hostname",
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"type": "query",
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"query": "label_values(systemd_unit_state, hostname)",
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"refresh": 2,
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"includeAll": true,
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"multi": true,
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"current": {"text": "All", "value": "$__all"}
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}
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]
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},
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"panels": [
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{
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"id": 1,
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"title": "Failed Units",
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"type": "stat",
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"gridPos": {"h": 4, "w": 4, "x": 0, "y": 0},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "count(systemd_unit_state{state=\"failed\", hostname=~\"$hostname\"} == 1) or vector(0)",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{"color": "green", "value": null},
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{"color": "red", "value": 1}
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]
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},
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"noValue": "0"
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}
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},
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"options": {
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"reduceOptions": {"calcs": ["lastNotNull"]},
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"colorMode": "value",
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"graphMode": "none"
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}
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},
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{
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"id": 2,
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"title": "Active Units",
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"type": "stat",
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"gridPos": {"h": 4, "w": 4, "x": 4, "y": 0},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "count(systemd_unit_state{state=\"active\", hostname=~\"$hostname\"} == 1)",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"thresholds": {
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"mode": "absolute",
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"steps": [{"color": "green", "value": null}]
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}
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}
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},
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"options": {
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"reduceOptions": {"calcs": ["lastNotNull"]},
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"colorMode": "value",
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"graphMode": "none"
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}
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},
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{
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"id": 3,
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"title": "Hosts Monitored",
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"type": "stat",
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"gridPos": {"h": 4, "w": 4, "x": 8, "y": 0},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "count(count by (hostname) (systemd_unit_state{hostname=~\"$hostname\"}))",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"thresholds": {
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"mode": "absolute",
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"steps": [{"color": "blue", "value": null}]
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}
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}
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},
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"options": {
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"reduceOptions": {"calcs": ["lastNotNull"]},
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"colorMode": "value",
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"graphMode": "none"
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}
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},
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{
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"id": 4,
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"title": "Total Service Restarts",
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"type": "stat",
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"gridPos": {"h": 4, "w": 4, "x": 12, "y": 0},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "sum(systemd_service_restart_total{hostname=~\"$hostname\"})",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"thresholds": {
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"mode": "absolute",
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"steps": [
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{"color": "green", "value": null},
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{"color": "yellow", "value": 10},
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{"color": "orange", "value": 50}
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]
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},
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"noValue": "0"
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}
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},
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"options": {
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"reduceOptions": {"calcs": ["lastNotNull"]},
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"colorMode": "value",
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"graphMode": "none"
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}
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},
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{
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"id": 5,
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"title": "Inactive Units",
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"type": "stat",
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"gridPos": {"h": 4, "w": 4, "x": 16, "y": 0},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "count(systemd_unit_state{state=\"inactive\", hostname=~\"$hostname\"} == 1)",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"thresholds": {
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"mode": "absolute",
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"steps": [{"color": "purple", "value": null}]
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}
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}
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},
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"options": {
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"reduceOptions": {"calcs": ["lastNotNull"]},
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"colorMode": "value",
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"graphMode": "none"
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}
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},
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{
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"id": 6,
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"title": "Timers",
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"type": "stat",
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"gridPos": {"h": 4, "w": 4, "x": 20, "y": 0},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "count(systemd_timer_last_trigger_seconds{hostname=~\"$hostname\"})",
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {
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"thresholds": {
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"mode": "absolute",
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"steps": [{"color": "blue", "value": null}]
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}
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}
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},
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"options": {
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"reduceOptions": {"calcs": ["lastNotNull"]},
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"colorMode": "value",
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"graphMode": "none"
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}
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},
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{
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"id": 7,
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"title": "Failed Units",
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"type": "table",
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"gridPos": {"h": 6, "w": 12, "x": 0, "y": 4},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "systemd_unit_state{state=\"failed\", hostname=~\"$hostname\"} == 1",
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"format": "table",
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"instant": true,
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {},
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"overrides": [
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{
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"matcher": {"id": "byName", "options": "Host"},
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"properties": [{"id": "custom.width", "value": 120}]
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},
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{
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"matcher": {"id": "byName", "options": "Unit"},
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"properties": [{"id": "custom.width", "value": 300}]
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}
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]
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},
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"options": {
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"showHeader": true,
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"sortBy": [{"displayName": "Host", "desc": false}]
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},
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"transformations": [
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{
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"id": "organize",
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"options": {
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"excludeByName": {
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"Time": true,
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"Value": true,
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"__name__": true,
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"dns_role": true,
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"instance": true,
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"job": true,
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"role": true,
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"state": true,
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"tier": true,
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"type": true
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},
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"renameByName": {
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"hostname": "Host",
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"name": "Unit"
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}
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}
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}
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],
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"description": "Units currently in failed state"
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},
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{
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"id": 8,
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"title": "Service Restarts (Top 15)",
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"type": "table",
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"gridPos": {"h": 6, "w": 12, "x": 12, "y": 4},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "topk(15, systemd_service_restart_total{hostname=~\"$hostname\"} > 0)",
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"format": "table",
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"instant": true,
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"refId": "A"
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}
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],
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"fieldConfig": {
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"defaults": {},
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"overrides": [
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{
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"matcher": {"id": "byName", "options": "Host"},
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"properties": [{"id": "custom.width", "value": 120}]
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},
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{
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"matcher": {"id": "byName", "options": "Service"},
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"properties": [{"id": "custom.width", "value": 280}]
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},
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{
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"matcher": {"id": "byName", "options": "Restarts"},
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"properties": [{"id": "custom.width", "value": 80}]
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}
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]
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},
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"options": {
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"showHeader": true,
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"sortBy": [{"displayName": "Restarts", "desc": true}]
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},
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"transformations": [
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{
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"id": "organize",
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"options": {
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"excludeByName": {
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"Time": true,
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"__name__": true,
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"dns_role": true,
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"instance": true,
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"job": true,
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"role": true,
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"tier": true
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},
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"renameByName": {
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"hostname": "Host",
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"name": "Service",
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"Value": "Restarts"
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}
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}
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}
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],
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"description": "Services that have been restarted (since host boot)"
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},
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{
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"id": 9,
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"title": "Active Units per Host",
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"type": "bargauge",
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"gridPos": {"h": 8, "w": 12, "x": 0, "y": 10},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "sort_desc(count by (hostname) (systemd_unit_state{state=\"active\", hostname=~\"$hostname\"} == 1))",
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"legendFormat": "{{hostname}}",
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"refId": "A",
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"instant": true
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}
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],
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"fieldConfig": {
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"defaults": {
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"thresholds": {
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"mode": "absolute",
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"steps": [{"color": "green", "value": null}]
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},
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"min": 0
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}
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},
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"options": {
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"reduceOptions": {"calcs": ["lastNotNull"]},
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"orientation": "horizontal",
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"displayMode": "gradient",
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"showUnfilled": true
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}
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},
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{
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"id": 10,
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"title": "NixOS Upgrade Timers",
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"type": "table",
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"gridPos": {"h": 8, "w": 12, "x": 12, "y": 10},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "systemd_timer_last_trigger_seconds{name=\"nixos-upgrade.timer\", hostname=~\"$hostname\"}",
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"format": "table",
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"instant": true,
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"refId": "last"
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},
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{
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"expr": "time() - systemd_timer_last_trigger_seconds{name=\"nixos-upgrade.timer\", hostname=~\"$hostname\"}",
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"format": "table",
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"instant": true,
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"refId": "ago"
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}
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],
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"fieldConfig": {
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"defaults": {},
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"overrides": [
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{
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"matcher": {"id": "byName", "options": "Host"},
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"properties": [{"id": "custom.width", "value": 130}]
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},
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{
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"matcher": {"id": "byName", "options": "Last Trigger"},
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"properties": [
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{"id": "unit", "value": "dateTimeAsLocalNoDateIfToday"},
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{"id": "custom.width", "value": 180}
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]
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},
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{
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"matcher": {"id": "byName", "options": "Time Ago"},
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"properties": [
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{"id": "unit", "value": "s"},
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{"id": "custom.width", "value": 120},
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{"id": "thresholds", "value": {"mode": "absolute", "steps": [{"color": "green", "value": null}, {"color": "yellow", "value": 86400}, {"color": "red", "value": 172800}]}},
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{"id": "custom.cellOptions", "value": {"type": "color-text"}}
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]
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}
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]
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},
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"options": {
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"showHeader": true,
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"sortBy": [{"displayName": "Time Ago", "desc": true}]
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},
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"transformations": [
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{
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"id": "joinByField",
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"options": {"byField": "hostname", "mode": "outer"}
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},
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{
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"id": "organize",
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"options": {
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"excludeByName": {
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"Time": true,
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"Time 1": true,
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"__name__": true,
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"__name__ 1": true,
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"dns_role": true,
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"dns_role 1": true,
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"instance": true,
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"instance 1": true,
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"job": true,
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"job 1": true,
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"name": true,
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"name 1": true,
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"role": true,
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"role 1": true,
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"tier": true,
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"tier 1": true
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},
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"indexByName": {
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"hostname": 0,
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"Value #last": 1,
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"Value #ago": 2
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},
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"renameByName": {
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"hostname": "Host",
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"Value #last": "Last Trigger",
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"Value #ago": "Time Ago"
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}
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}
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}
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],
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"description": "When nixos-upgrade.timer last ran on each host. Yellow >24h, Red >48h."
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},
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{
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"id": 11,
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"title": "Backup Timers",
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"type": "table",
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"gridPos": {"h": 6, "w": 12, "x": 0, "y": 18},
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"datasource": {"type": "prometheus", "uid": "prometheus"},
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"targets": [
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{
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"expr": "systemd_timer_last_trigger_seconds{name=~\"restic.*\", hostname=~\"$hostname\"}",
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"format": "table",
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"instant": true,
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"refId": "last"
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},
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{
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"expr": "time() - systemd_timer_last_trigger_seconds{name=~\"restic.*\", hostname=~\"$hostname\"}",
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"format": "table",
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"instant": true,
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"refId": "ago"
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}
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],
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"fieldConfig": {
|
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"defaults": {},
|
|
"overrides": [
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{
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"matcher": {"id": "byName", "options": "Host"},
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"properties": [{"id": "custom.width", "value": 120}]
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},
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{
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"matcher": {"id": "byName", "options": "Timer"},
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"properties": [{"id": "custom.width", "value": 220}]
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},
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{
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"matcher": {"id": "byName", "options": "Last Trigger"},
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"properties": [
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{"id": "unit", "value": "dateTimeAsLocalNoDateIfToday"},
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{"id": "custom.width", "value": 180}
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]
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},
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{
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"matcher": {"id": "byName", "options": "Time Ago"},
|
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"properties": [
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{"id": "unit", "value": "s"},
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{"id": "custom.width", "value": 100},
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{"id": "thresholds", "value": {"mode": "absolute", "steps": [{"color": "green", "value": null}, {"color": "yellow", "value": 86400}, {"color": "red", "value": 172800}]}},
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{"id": "custom.cellOptions", "value": {"type": "color-text"}}
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]
|
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}
|
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]
|
|
},
|
|
"options": {
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"showHeader": true,
|
|
"sortBy": [{"displayName": "Time Ago", "desc": true}]
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},
|
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"transformations": [
|
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{
|
|
"id": "joinByField",
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"options": {"byField": "name", "mode": "outer"}
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},
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|
{
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"id": "organize",
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"options": {
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"excludeByName": {
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"Time": true,
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"Time 1": true,
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|
"__name__": true,
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|
"__name__ 1": true,
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"dns_role": true,
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|
"dns_role 1": true,
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"instance": true,
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"instance 1": true,
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"job": true,
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"job 1": true,
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"role": true,
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"role 1": true,
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"tier": true,
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|
"tier 1": true,
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"hostname 1": true
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},
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"indexByName": {
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"hostname": 0,
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"name": 1,
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"Value #last": 2,
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"Value #ago": 3
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},
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"renameByName": {
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"hostname": "Host",
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"name": "Timer",
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"Value #last": "Last Trigger",
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"Value #ago": "Time Ago"
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}
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}
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}
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],
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"description": "Restic backup timers"
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},
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{
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"id": 12,
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"title": "Service Restarts Over Time",
|
|
"type": "timeseries",
|
|
"gridPos": {"h": 6, "w": 12, "x": 12, "y": 18},
|
|
"datasource": {"type": "prometheus", "uid": "prometheus"},
|
|
"targets": [
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{
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"expr": "sum by (hostname) (increase(systemd_service_restart_total{hostname=~\"$hostname\"}[1h]))",
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"legendFormat": "{{hostname}}",
|
|
"refId": "A"
|
|
}
|
|
],
|
|
"fieldConfig": {
|
|
"defaults": {
|
|
"unit": "short",
|
|
"custom": {
|
|
"lineWidth": 1,
|
|
"fillOpacity": 20,
|
|
"showPoints": "never",
|
|
"stacking": {"mode": "normal"}
|
|
}
|
|
}
|
|
},
|
|
"options": {
|
|
"legend": {"displayMode": "list", "placement": "bottom"},
|
|
"tooltip": {"mode": "multi", "sort": "desc"}
|
|
},
|
|
"description": "Service restart rate per hour"
|
|
}
|
|
]
|
|
}
|