From 65acf13e6f25f31659543d04fbb7cd1eaae01266 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Torjus=20H=C3=A5kestad?= <torjus@usit.uio.no>
Date: Tue, 17 Feb 2026 22:23:04 +0100
Subject: [PATCH] grafana: fix datasource UIDs for VictoriaMetrics migration

Update all dashboard datasource references from "prometheus" to
"victoriametrics" to match the declared datasource UID. Enable
prune and deleteDatasources to clean up the old Prometheus
(monitoring01) datasource from Grafana's database.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 services/grafana/dashboards/apiary.json       | 20 ++++----
 services/grafana/dashboards/certificates.json | 20 ++++----
 services/grafana/dashboards/nixos-fleet.json  | 48 +++++++++----------
 .../grafana/dashboards/node-exporter.json     | 16 +++----
 services/grafana/dashboards/proxmox.json      | 28 +++++------
 services/grafana/dashboards/systemd.json      | 26 +++++-----
 services/grafana/dashboards/temperature.json  | 14 +++---
 services/grafana/default.nix                  |  4 ++
 8 files changed, 90 insertions(+), 86 deletions(-)

diff --git a/services/grafana/dashboards/apiary.json b/services/grafana/dashboards/apiary.json
index 6fa4297..9899ccb 100644
--- a/services/grafana/dashboards/apiary.json
+++ b/services/grafana/dashboards/apiary.json
@@ -19,7 +19,7 @@
       "title": "SSH Connections",
       "type": "stat",
       "gridPos": {"h": 4, "w": 6, "x": 0, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(oubliette_ssh_connections_total{job=\"apiary\"})",
@@ -51,7 +51,7 @@
       "title": "Active Sessions",
       "type": "stat",
       "gridPos": {"h": 4, "w": 6, "x": 6, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "oubliette_sessions_active{job=\"apiary\"}",
@@ -86,7 +86,7 @@
       "title": "Unique IPs",
       "type": "stat",
       "gridPos": {"h": 4, "w": 6, "x": 12, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "oubliette_storage_unique_ips{job=\"apiary\"}",
@@ -118,7 +118,7 @@
       "title": "Total Login Attempts",
       "type": "stat",
       "gridPos": {"h": 4, "w": 6, "x": 18, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "oubliette_storage_login_attempts_total{job=\"apiary\"}",
@@ -150,7 +150,7 @@
       "title": "SSH Connections Over Time",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "interval": "60s",
       "targets": [
         {
@@ -183,7 +183,7 @@
       "title": "Auth Attempts Over Time",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "interval": "60s",
       "targets": [
         {
@@ -216,7 +216,7 @@
       "title": "Sessions by Shell",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 22},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "interval": "60s",
       "targets": [
         {
@@ -249,7 +249,7 @@
       "title": "Attempts by Country",
       "type": "geomap",
       "gridPos": {"h": 10, "w": 24, "x": 0, "y": 12},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "oubliette_auth_attempts_by_country_total{job=\"apiary\"}",
@@ -318,7 +318,7 @@
       "title": "Session Duration Distribution",
       "type": "heatmap",
       "gridPos": {"h": 8, "w": 24, "x": 0, "y": 30},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "interval": "60s",
       "targets": [
         {
@@ -359,7 +359,7 @@
       "title": "Commands Executed by Shell",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 22},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "interval": "60s",
       "targets": [
         {
diff --git a/services/grafana/dashboards/certificates.json b/services/grafana/dashboards/certificates.json
index 5cf0a22..619f058 100644
--- a/services/grafana/dashboards/certificates.json
+++ b/services/grafana/dashboards/certificates.json
@@ -16,7 +16,7 @@
       "title": "Endpoints Monitored",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 0, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(probe_ssl_earliest_cert_expiry{job=\"blackbox_tls\"})",
@@ -48,7 +48,7 @@
       "title": "Probe Failures",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 4, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(probe_success{job=\"blackbox_tls\"} == 0) or vector(0)",
@@ -82,7 +82,7 @@
       "title": "Expiring Soon (< 7d)",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 8, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count((probe_ssl_earliest_cert_expiry{job=\"blackbox_tls\"} - time()) < 86400 * 7) or vector(0)",
@@ -116,7 +116,7 @@
       "title": "Expiring Critical (< 24h)",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 12, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count((probe_ssl_earliest_cert_expiry{job=\"blackbox_tls\"} - time()) < 86400) or vector(0)",
@@ -150,7 +150,7 @@
       "title": "Minimum Days Remaining",
       "type": "gauge",
       "gridPos": {"h": 4, "w": 8, "x": 16, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "min((probe_ssl_earliest_cert_expiry{job=\"blackbox_tls\"} - time()) / 86400)",
@@ -187,7 +187,7 @@
       "title": "Certificate Expiry by Endpoint",
       "type": "table",
       "gridPos": {"h": 12, "w": 12, "x": 0, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "(probe_ssl_earliest_cert_expiry{job=\"blackbox_tls\"} - time()) / 86400",
@@ -253,7 +253,7 @@
       "title": "Probe Status",
       "type": "table",
       "gridPos": {"h": 12, "w": 12, "x": 12, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "probe_success{job=\"blackbox_tls\"}",
@@ -340,7 +340,7 @@
       "title": "Certificate Expiry Over Time",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 24, "x": 0, "y": 16},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "(probe_ssl_earliest_cert_expiry{job=\"blackbox_tls\"} - time()) / 86400",
@@ -378,7 +378,7 @@
       "title": "Probe Success Rate",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 24},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "avg(probe_success{job=\"blackbox_tls\"}) * 100",
@@ -418,7 +418,7 @@
       "title": "Probe Duration",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 24},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "probe_duration_seconds{job=\"blackbox_tls\"}",
diff --git a/services/grafana/dashboards/nixos-fleet.json b/services/grafana/dashboards/nixos-fleet.json
index 722d5dd..4bfb3be 100644
--- a/services/grafana/dashboards/nixos-fleet.json
+++ b/services/grafana/dashboards/nixos-fleet.json
@@ -15,7 +15,7 @@
       {
         "name": "tier",
         "type": "query",
-        "datasource": {"type": "prometheus", "uid": "prometheus"},
+        "datasource": {"type": "prometheus", "uid": "victoriametrics"},
         "query": "label_values(nixos_flake_info, tier)",
         "refresh": 2,
         "includeAll": true,
@@ -30,7 +30,7 @@
       "title": "Hosts Behind Remote",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 0, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(nixos_flake_revision_behind{tier=~\"$tier\"} == 1)",
@@ -65,7 +65,7 @@
       "title": "Hosts Needing Reboot",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 4, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(nixos_config_mismatch{tier=~\"$tier\"} == 1)",
@@ -100,7 +100,7 @@
       "title": "Total Hosts",
       "type": "stat",
       "gridPos": {"h": 4, "w": 3, "x": 8, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(nixos_flake_info{tier=~\"$tier\"})",
@@ -128,7 +128,7 @@
       "title": "Nixpkgs Age",
       "type": "stat",
       "gridPos": {"h": 4, "w": 3, "x": 11, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "max(nixos_flake_input_age_seconds{input=\"nixpkgs\", tier=~\"$tier\"})",
@@ -163,7 +163,7 @@
       "title": "Hosts Up-to-date",
       "type": "stat",
       "gridPos": {"h": 4, "w": 3, "x": 14, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(nixos_flake_revision_behind{tier=~\"$tier\"} == 0)",
@@ -192,7 +192,7 @@
       "title": "Deployments (24h)",
       "type": "stat",
       "gridPos": {"h": 4, "w": 3, "x": 17, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(increase(homelab_deploy_deployments_total{status=\"completed\"}[24h]))",
@@ -222,7 +222,7 @@
       "title": "Avg Deploy Time",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 20, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(increase(homelab_deploy_deployment_duration_seconds_sum{success=\"true\"}[24h])) / sum(increase(homelab_deploy_deployment_duration_seconds_count{success=\"true\"}[24h]))",
@@ -256,7 +256,7 @@
       "title": "Fleet Status",
       "type": "table",
       "gridPos": {"h": 10, "w": 24, "x": 0, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "nixos_flake_info{tier=~\"$tier\"}",
@@ -430,7 +430,7 @@
       "title": "Generation Age by Host",
       "type": "bargauge",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 14},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sort_desc(nixos_generation_age_seconds{tier=~\"$tier\"})",
@@ -467,7 +467,7 @@
       "title": "Generations per Host",
       "type": "bargauge",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 14},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sort_desc(nixos_generation_count{tier=~\"$tier\"})",
@@ -501,7 +501,7 @@
       "title": "Deployment Activity (Generation Age Over Time)",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 24, "x": 0, "y": 22},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "nixos_generation_age_seconds{tier=~\"$tier\"}",
@@ -534,7 +534,7 @@
       "title": "Flake Input Ages",
       "type": "table",
       "gridPos": {"h": 6, "w": 12, "x": 0, "y": 30},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "max by (input) (nixos_flake_input_age_seconds)",
@@ -577,7 +577,7 @@
       "title": "Hosts by Revision",
       "type": "piechart",
       "gridPos": {"h": 6, "w": 6, "x": 12, "y": 30},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count by (current_rev) (nixos_flake_info{tier=~\"$tier\"})",
@@ -601,7 +601,7 @@
       "title": "Hosts by Tier",
       "type": "piechart",
       "gridPos": {"h": 6, "w": 6, "x": 18, "y": 30},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count by (tier) (nixos_flake_info)",
@@ -641,7 +641,7 @@
       "title": "Builds (24h)",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 0, "y": 37},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(increase(homelab_deploy_build_host_total{status=\"success\"}[24h]))",
@@ -671,7 +671,7 @@
       "title": "Failed Builds (24h)",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 4, "y": 37},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(increase(homelab_deploy_build_host_total{status=\"failure\"}[24h])) or vector(0)",
@@ -705,7 +705,7 @@
       "title": "Last Build",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 8, "y": 37},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "time() - max(homelab_deploy_build_last_timestamp)",
@@ -739,7 +739,7 @@
       "title": "Avg Build Time",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 12, "y": 37},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(increase(homelab_deploy_build_duration_seconds_sum[24h])) / sum(increase(homelab_deploy_build_duration_seconds_count[24h]))",
@@ -773,7 +773,7 @@
       "title": "Total Hosts Built",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 16, "y": 37},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(homelab_deploy_build_duration_seconds_count)",
@@ -802,7 +802,7 @@
       "title": "Build Jobs (24h)",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 20, "y": 37},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(increase(homelab_deploy_builds_total[24h]))",
@@ -832,7 +832,7 @@
       "title": "Build Time by Host",
       "type": "bargauge",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 41},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sort_desc(homelab_deploy_build_duration_seconds_sum / homelab_deploy_build_duration_seconds_count)",
@@ -869,7 +869,7 @@
       "title": "Build Count by Host",
       "type": "bargauge",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 41},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sort_desc(sum by (host) (homelab_deploy_build_host_total))",
@@ -903,7 +903,7 @@
       "title": "Build Activity",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 24, "x": 0, "y": 49},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(increase(homelab_deploy_build_host_total{status=\"success\"}[1h]))",
diff --git a/services/grafana/dashboards/node-exporter.json b/services/grafana/dashboards/node-exporter.json
index 5da2746..119a884 100644
--- a/services/grafana/dashboards/node-exporter.json
+++ b/services/grafana/dashboards/node-exporter.json
@@ -11,7 +11,7 @@
       {
         "name": "instance",
         "type": "query",
-        "datasource": {"type": "prometheus", "uid": "prometheus"},
+        "datasource": {"type": "prometheus", "uid": "victoriametrics"},
         "query": "label_values(node_uname_info, instance)",
         "refresh": 2,
         "includeAll": false,
@@ -26,7 +26,7 @@
       "title": "CPU Usage",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "100 - (avg by(instance) (rate(node_cpu_seconds_total{mode=\"idle\", instance=~\"$instance\"}[5m])) * 100)",
@@ -55,7 +55,7 @@
       "title": "Memory Usage",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "(1 - (node_memory_MemAvailable_bytes{instance=~\"$instance\"} / node_memory_MemTotal_bytes{instance=~\"$instance\"})) * 100",
@@ -84,7 +84,7 @@
       "title": "Disk Usage",
       "type": "gauge",
       "gridPos": {"h": 8, "w": 8, "x": 0, "y": 8},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "100 - ((node_filesystem_avail_bytes{instance=~\"$instance\",mountpoint=\"/\",fstype!=\"rootfs\"} / node_filesystem_size_bytes{instance=~\"$instance\",mountpoint=\"/\",fstype!=\"rootfs\"}) * 100)",
@@ -113,7 +113,7 @@
       "title": "System Load",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 8, "x": 8, "y": 8},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "node_load1{instance=~\"$instance\"}",
@@ -142,7 +142,7 @@
       "title": "Uptime",
       "type": "stat",
       "gridPos": {"h": 8, "w": 8, "x": 16, "y": 8},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "time() - node_boot_time_seconds{instance=~\"$instance\"}",
@@ -161,7 +161,7 @@
       "title": "Network Traffic",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 16},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "rate(node_network_receive_bytes_total{instance=~\"$instance\",device!~\"lo|veth.*|br.*|docker.*\"}[5m])",
@@ -185,7 +185,7 @@
       "title": "Disk I/O",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 16},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "rate(node_disk_read_bytes_total{instance=~\"$instance\",device!~\"dm-.*\"}[5m])",
diff --git a/services/grafana/dashboards/proxmox.json b/services/grafana/dashboards/proxmox.json
index 0f61f2b..5bf5941 100644
--- a/services/grafana/dashboards/proxmox.json
+++ b/services/grafana/dashboards/proxmox.json
@@ -15,7 +15,7 @@
       {
         "name": "vm",
         "type": "query",
-        "datasource": {"type": "prometheus", "uid": "prometheus"},
+        "datasource": {"type": "prometheus", "uid": "victoriametrics"},
         "query": "label_values(pve_guest_info{template=\"0\"}, name)",
         "refresh": 2,
         "includeAll": true,
@@ -30,7 +30,7 @@
       "title": "VMs Running",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 0, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(pve_up{id=~\"qemu/.*\"} * on(id) pve_guest_info{template=\"0\"} == 1)",
@@ -56,7 +56,7 @@
       "title": "VMs Stopped",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 4, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(pve_up{id=~\"qemu/.*\"} * on(id) pve_guest_info{template=\"0\"} == 0)",
@@ -87,7 +87,7 @@
       "title": "Node CPU",
       "type": "gauge",
       "gridPos": {"h": 4, "w": 4, "x": 8, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_cpu_usage_ratio{id=~\"node/.*\"} * 100",
@@ -120,7 +120,7 @@
       "title": "Node Memory",
       "type": "gauge",
       "gridPos": {"h": 4, "w": 4, "x": 12, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_memory_usage_bytes{id=~\"node/.*\"} / pve_memory_size_bytes{id=~\"node/.*\"} * 100",
@@ -153,7 +153,7 @@
       "title": "Node Uptime",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 16, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_uptime_seconds{id=~\"node/.*\"}",
@@ -180,7 +180,7 @@
       "title": "Templates",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 20, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(pve_guest_info{template=\"1\"})",
@@ -206,7 +206,7 @@
       "title": "VM Status",
       "type": "table",
       "gridPos": {"h": 10, "w": 24, "x": 0, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_guest_info{template=\"0\", name=~\"$vm\"}",
@@ -362,7 +362,7 @@
       "title": "VM CPU Usage",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 14},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_cpu_usage_ratio{id=~\"qemu/.*\"} * on(id) group_left(name) pve_guest_info{template=\"0\", name=~\"$vm\"} * 100",
@@ -391,7 +391,7 @@
       "title": "VM Memory Usage",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 14},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_memory_usage_bytes{id=~\"qemu/.*\"} * on(id) group_left(name) pve_guest_info{template=\"0\", name=~\"$vm\"}",
@@ -420,7 +420,7 @@
       "title": "VM Network Traffic",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 22},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "rate(pve_network_receive_bytes{id=~\"qemu/.*\"}[5m]) * on(id) group_left(name) pve_guest_info{template=\"0\", name=~\"$vm\"}",
@@ -453,7 +453,7 @@
       "title": "VM Disk I/O",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 22},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "rate(pve_disk_read_bytes{id=~\"qemu/.*\"}[5m]) * on(id) group_left(name) pve_guest_info{template=\"0\", name=~\"$vm\"}",
@@ -486,7 +486,7 @@
       "title": "Storage Usage",
       "type": "bargauge",
       "gridPos": {"h": 6, "w": 12, "x": 0, "y": 30},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_disk_usage_bytes{id=~\"storage/.*\"} / pve_disk_size_bytes{id=~\"storage/.*\"} * 100",
@@ -531,7 +531,7 @@
       "title": "Storage Capacity",
       "type": "table",
       "gridPos": {"h": 6, "w": 12, "x": 12, "y": 30},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "pve_disk_size_bytes{id=~\"storage/.*\"}",
diff --git a/services/grafana/dashboards/systemd.json b/services/grafana/dashboards/systemd.json
index 8162527..be38f48 100644
--- a/services/grafana/dashboards/systemd.json
+++ b/services/grafana/dashboards/systemd.json
@@ -15,7 +15,7 @@
       {
         "name": "hostname",
         "type": "query",
-        "datasource": {"type": "prometheus", "uid": "prometheus"},
+        "datasource": {"type": "prometheus", "uid": "victoriametrics"},
         "query": "label_values(systemd_unit_state, hostname)",
         "refresh": 2,
         "includeAll": true,
@@ -30,7 +30,7 @@
       "title": "Failed Units",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 0, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(systemd_unit_state{state=\"failed\", hostname=~\"$hostname\"} == 1) or vector(0)",
@@ -60,7 +60,7 @@
       "title": "Active Units",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 4, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(systemd_unit_state{state=\"active\", hostname=~\"$hostname\"} == 1)",
@@ -86,7 +86,7 @@
       "title": "Hosts Monitored",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 8, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(count by (hostname) (systemd_unit_state{hostname=~\"$hostname\"}))",
@@ -112,7 +112,7 @@
       "title": "Total Service Restarts",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 12, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum(systemd_service_restart_total{hostname=~\"$hostname\"})",
@@ -143,7 +143,7 @@
       "title": "Inactive Units",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 16, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(systemd_unit_state{state=\"inactive\", hostname=~\"$hostname\"} == 1)",
@@ -169,7 +169,7 @@
       "title": "Timers",
       "type": "stat",
       "gridPos": {"h": 4, "w": 4, "x": 20, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "count(systemd_timer_last_trigger_seconds{hostname=~\"$hostname\"})",
@@ -195,7 +195,7 @@
       "title": "Failed Units",
       "type": "table",
       "gridPos": {"h": 6, "w": 12, "x": 0, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "systemd_unit_state{state=\"failed\", hostname=~\"$hostname\"} == 1",
@@ -251,7 +251,7 @@
       "title": "Service Restarts (Top 15)",
       "type": "table",
       "gridPos": {"h": 6, "w": 12, "x": 12, "y": 4},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "topk(15, systemd_service_restart_total{hostname=~\"$hostname\"} > 0)",
@@ -309,7 +309,7 @@
       "title": "Active Units per Host",
       "type": "bargauge",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 10},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sort_desc(count by (hostname) (systemd_unit_state{state=\"active\", hostname=~\"$hostname\"} == 1))",
@@ -339,7 +339,7 @@
       "title": "NixOS Upgrade Timers",
       "type": "table",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 10},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "systemd_timer_last_trigger_seconds{name=\"nixos-upgrade.timer\", hostname=~\"$hostname\"}",
@@ -429,7 +429,7 @@
       "title": "Backup Timers",
       "type": "table",
       "gridPos": {"h": 6, "w": 12, "x": 0, "y": 18},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "systemd_timer_last_trigger_seconds{name=~\"restic.*\", hostname=~\"$hostname\"}",
@@ -524,7 +524,7 @@
       "title": "Service Restarts Over Time",
       "type": "timeseries",
       "gridPos": {"h": 6, "w": 12, "x": 12, "y": 18},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "sum by (hostname) (increase(systemd_service_restart_total{hostname=~\"$hostname\"}[1h]))",
diff --git a/services/grafana/dashboards/temperature.json b/services/grafana/dashboards/temperature.json
index 7c80e6a..95baff3 100644
--- a/services/grafana/dashboards/temperature.json
+++ b/services/grafana/dashboards/temperature.json
@@ -19,7 +19,7 @@
       "title": "Current Temperatures",
       "type": "stat",
       "gridPos": {"h": 6, "w": 12, "x": 0, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "hass_sensor_temperature_celsius{entity!~\".*device_temperature\"}",
@@ -71,7 +71,7 @@
       "title": "Average Home Temperature",
       "type": "gauge",
       "gridPos": {"h": 6, "w": 6, "x": 12, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "avg(hass_sensor_temperature_celsius{entity!~\".*device_temperature|.*server.*\"})",
@@ -108,7 +108,7 @@
       "title": "Current Humidity",
       "type": "stat",
       "gridPos": {"h": 6, "w": 6, "x": 18, "y": 0},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "hass_sensor_humidity_percent{entity!~\".*server.*\"}",
@@ -154,7 +154,7 @@
       "title": "Temperature History (30 Days)",
       "type": "timeseries",
       "gridPos": {"h": 10, "w": 24, "x": 0, "y": 6},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "hass_sensor_temperature_celsius{entity!~\".*device_temperature\"}",
@@ -207,7 +207,7 @@
       "title": "Temperature Trend (1h rate of change)",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 12, "x": 0, "y": 16},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "deriv(hass_sensor_temperature_celsius{entity!~\".*device_temperature\"}[1h]) * 3600",
@@ -268,7 +268,7 @@
       "title": "24h Min / Max / Avg",
       "type": "table",
       "gridPos": {"h": 8, "w": 12, "x": 12, "y": 16},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "min_over_time(hass_sensor_temperature_celsius{entity!~\".*device_temperature\"}[24h])",
@@ -346,7 +346,7 @@
       "title": "Humidity History (30 Days)",
       "type": "timeseries",
       "gridPos": {"h": 8, "w": 24, "x": 0, "y": 24},
-      "datasource": {"type": "prometheus", "uid": "prometheus"},
+      "datasource": {"type": "prometheus", "uid": "victoriametrics"},
       "targets": [
         {
           "expr": "hass_sensor_humidity_percent",
diff --git a/services/grafana/default.nix b/services/grafana/default.nix
index 3da828b..d9a2e7b 100644
--- a/services/grafana/default.nix
+++ b/services/grafana/default.nix
@@ -37,6 +37,10 @@
     # Declarative datasources
     provision.datasources.settings = {
       apiVersion = 1;
+      prune = true;
+      deleteDatasources = [
+        { name = "Prometheus (monitoring01)"; orgId = 1; }
+      ];
       datasources = [
         {
           name = "VictoriaMetrics";