Merge branch 'main' of ssh://gt.hexor.cy:30022/ab/homelab

k8s/core/prom-stack/alertmanager-config.yaml

@@ -0,0 +1,46 @@
+apiVersion: monitoring.coreos.com/v1alpha1
+kind: AlertmanagerConfig
+metadata:
+  name: telegram-notifications
+  namespace: prometheus
+  labels:
+    app: kube-prometheus-stack-alertmanager
+    release: prometheus
+spec:
+  route:
+    groupBy: ['alertname', 'cluster', 'service']
+    groupWait: 10s
+    groupInterval: 5m
+    repeatInterval: 12h
+    receiver: telegram
+    routes:
+    - matchers:
+      - name: alertname
+        value: Watchdog
+        matchType: "="
+      receiver: 'null'
+  receivers:
+  - name: telegram
+    telegramConfigs:
+    - botToken:
+        name: alertmanager-telegram-secret
+        key: TELEGRAM_BOT_TOKEN
+      chatID: 124317807
+      parseMode: HTML
+      sendResolved: true
+      disableNotifications: false
+      message: |
+        {{ if eq .Status "firing" }}🔥 FIRING{{ else }}✅ RESOLVED{{ end }}
+        
+        {{ range .Alerts }}
+        📊 <b>{{ .Labels.alertname }}</b>
+        {{ .Annotations.summary }}
+        
+        {{ if .Annotations.node }}🖥 <b>Node:</b> <code>{{ .Annotations.node }}</code>{{ end }}
+        {{ if .Annotations.pod }}📦 <b>Pod:</b> <code>{{ .Annotations.pod }}</code>{{ end }}
+        {{ if .Annotations.namespace }}📁 <b>Namespace:</b> <code>{{ .Annotations.namespace }}</code>{{ end }}
+        {{ if .Annotations.throttle_rate }}⚠️ <b>Throttling rate:</b> {{ .Annotations.throttle_rate }}{{ end }}
+        
+        🔗 <a href="{{ .GeneratorURL }}">View in Grafana</a>
+        {{ end }}
+  - name: 'null'

k8s/core/prom-stack/grafana-alerting-configmap.yaml

@@ -45,7 +45,7 @@ data:
                     type: __expr__
                     uid: __expr__
                   expression: A
-                  reducer: last
+                  reducer: min
                   refId: B
                   type: reduce
             noDataState: NoData
@@ -63,7 +63,7 @@ data:
       - orgId: 1
         name: kubernetes_alerts
         folder: Kubernetes
-        interval: 30s
+        interval: 2m
         rules:
           - uid: node_not_ready
             title: Kubernetes Node Not Ready
@@ -71,17 +71,17 @@ data:
             data:
               - refId: A
                 relativeTimeRange:
-                  from: 300
+                  from: 600
                   to: 0
                 datasourceUid: P76F38748CEC837F0
                 model:
-                  expr: 'kube_node_status_condition{condition="Ready",status="true"} == 0'
+                  expr: 'kube_node_status_condition{condition="Ready",status="false"}'
                   refId: A
                   intervalMs: 1000
                   maxDataPoints: 43200
               - refId: B
                 relativeTimeRange:
-                  from: 300
+                  from: 600
                   to: 0
                 datasourceUid: __expr__
                 model:
@@ -98,12 +98,12 @@ data:
                     type: __expr__
                     uid: __expr__
                   expression: A
-                  reducer: last
+                  reducer: min
                   refId: B
                   type: reduce
-            noDataState: Alerting
+            noDataState: NoData
             execErrState: Alerting
-            for: 0s
+            for: 10m
             annotations:
               node: '{{ $labels.node }}'
               condition: '{{ $labels.condition }}'
@@ -111,6 +111,236 @@ data:
             labels:
               severity: critical
 
+          - uid: node_high_memory_usage
+            title: High Node Memory Usage
+            condition: B
+            data:
+              - refId: A
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: P76F38748CEC837F0
+                model:
+                  expr: '(1 - (node_memory_MemAvailable_bytes / node_memory_MemTotal_bytes)) * 100'
+                  refId: A
+                  intervalMs: 1000
+                  maxDataPoints: 43200
+              - refId: B
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: __expr__
+                model:
+                  conditions:
+                    - evaluator:
+                        params:
+                          - 80
+                        type: gt
+                      operator:
+                        type: and
+                      query:
+                        params: []
+                  datasource:
+                    type: __expr__
+                    uid: __expr__
+                  expression: A
+                  reducer: max
+                  refId: B
+                  type: reduce
+            noDataState: NoData
+            execErrState: Alerting
+            for: 5m
+            annotations:
+              node: '{{ $labels.instance }}'
+              memory_usage: '{{ printf "%.1f%%" $values.A }}'
+              summary: 'Node memory usage is critically high'
+            labels:
+              severity: warning
+
+          - uid: node_high_cpu_usage
+            title: High Node CPU Usage
+            condition: B
+            data:
+              - refId: A
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: P76F38748CEC837F0
+                model:
+                  expr: '100 - (avg by(instance) (rate(node_cpu_seconds_total{mode="idle"}[5m])) * 100)'
+                  refId: A
+                  intervalMs: 1000
+                  maxDataPoints: 43200
+              - refId: B
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: __expr__
+                model:
+                  conditions:
+                    - evaluator:
+                        params:
+                          - 80
+                        type: gt
+                      operator:
+                        type: and
+                      query:
+                        params: []
+                  datasource:
+                    type: __expr__
+                    uid: __expr__
+                  expression: A
+                  reducer: max
+                  refId: B
+                  type: reduce
+            noDataState: NoData
+            execErrState: Alerting
+            for: 10m
+            annotations:
+              node: '{{ $labels.instance }}'
+              cpu_usage: '{{ printf "%.1f%%" $values.A }}'
+              summary: 'Node CPU usage is critically high'
+            labels:
+              severity: warning
+
+          - uid: node_high_disk_usage
+            title: High Node Disk Usage
+            condition: B
+            data:
+              - refId: A
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: P76F38748CEC837F0
+                model:
+                  expr: '(1 - (node_filesystem_avail_bytes{fstype=~"ext[234]|xfs|zfs|btrfs"} / node_filesystem_size_bytes)) * 100'
+                  refId: A
+                  intervalMs: 1000
+                  maxDataPoints: 43200
+              - refId: B
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: __expr__
+                model:
+                  conditions:
+                    - evaluator:
+                        params:
+                          - 85
+                        type: gt
+                      operator:
+                        type: and
+                      query:
+                        params: []
+                  datasource:
+                    type: __expr__
+                    uid: __expr__
+                  expression: A
+                  reducer: max
+                  refId: B
+                  type: reduce
+            noDataState: NoData
+            execErrState: Alerting
+            for: 5m
+            annotations:
+              node: '{{ $labels.instance }}'
+              filesystem: '{{ $labels.mountpoint }}'
+              disk_usage: '{{ printf "%.1f%%" $values.A }}'
+              summary: 'Node disk usage is critically high'
+            labels:
+              severity: critical
+
+          - uid: node_load_average_high
+            title: High Node Load Average
+            condition: B
+            data:
+              - refId: A
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: P76F38748CEC837F0
+                model:
+                  expr: 'node_load5 / on(instance) group_left count by(instance)(node_cpu_seconds_total{mode="idle"})'
+                  refId: A
+                  intervalMs: 1000
+                  maxDataPoints: 43200
+              - refId: B
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: __expr__
+                model:
+                  conditions:
+                    - evaluator:
+                        params:
+                          - 0.8
+                        type: gt
+                      operator:
+                        type: and
+                      query:
+                        params: []
+                  datasource:
+                    type: __expr__
+                    uid: __expr__
+                  expression: A
+                  reducer: max
+                  refId: B
+                  type: reduce
+            noDataState: NoData
+            execErrState: Alerting
+            for: 5m
+            annotations:
+              node: '{{ $labels.instance }}'
+              load_average: '{{ printf "%.2f" $values.A }}'
+              summary: 'Node load average is high relative to CPU count'
+            labels:
+              severity: warning
+
+          - uid: node_exporter_down
+            title: Node Exporter Down
+            condition: B
+            data:
+              - refId: A
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: P76F38748CEC837F0
+                model:
+                  expr: 'up{job="node-exporter"}'
+                  refId: A
+                  intervalMs: 1000
+                  maxDataPoints: 43200
+              - refId: B
+                relativeTimeRange:
+                  from: 300
+                  to: 0
+                datasourceUid: __expr__
+                model:
+                  conditions:
+                    - evaluator:
+                        params:
+                          - 1
+                        type: lt
+                      operator:
+                        type: and
+                      query:
+                        params: []
+                  datasource:
+                    type: __expr__
+                    uid: __expr__
+                  expression: A
+                  reducer: min
+                  refId: B
+                  type: reduce
+            noDataState: NoData
+            execErrState: Alerting
+            for: 2m
+            annotations:
+              node: '{{ $labels.instance }}'
+              summary: 'Node exporter is down - unable to collect metrics'
+            labels:
+              severity: critical
+  
   contactpoints.yaml: |
     apiVersion: 1
     contactPoints:
@@ -149,4 +379,4 @@ data:
           - alertname
         group_wait: 10s
         group_interval: 5m
-        repeat_interval: 4h
+        repeat_interval: 12h

k8s/core/prom-stack/kustomization.yaml

@@ -5,6 +5,7 @@ resources:
   - persistentVolume.yaml
   - external-secrets.yaml
   - grafana-alerting-configmap.yaml
+  - alertmanager-config.yaml
 
 helmCharts:
   - name: kube-prometheus-stack

k8s/core/prom-stack/prom-values.yaml

@@ -26,11 +26,41 @@ alertmanager:
               {{ if .Annotations.description }}<b>Description:</b> {{ .Annotations.description }}{{ end }}
               {{ end }}
 
+  ingress:
+    enabled: true
+    ingressClassName: traefik
+    annotations:
+      cert-manager.io/cluster-issuer: letsencrypt
+      traefik.ingress.kubernetes.io/router.middlewares: kube-system-https-redirect@kubernetescrd
+    hosts:
+      - prom.hexor.cy
+    paths:
+      - /alertmanager
+    tls:
+      - secretName: alertmanager-tls
+        hosts:
+          - prom.hexor.cy
   alertmanagerSpec:
     secrets:
       - alertmanager-telegram-secret
+    externalUrl: https://prom.hexor.cy/alertmanager
+    routePrefix: /alertmanager
 
 prometheus:
+  ingress:
+    enabled: true
+    ingressClassName: traefik
+    annotations:
+      cert-manager.io/cluster-issuer: letsencrypt
+      traefik.ingress.kubernetes.io/router.middlewares: kube-system-https-redirect@kubernetescrd
+    hosts:
+      - prom.hexor.cy
+    paths:
+      - /
+    tls:
+      - secretName: prometheus-tls
+        hosts:
+          - prom.hexor.cy
   prometheusSpec:
     enableRemoteWriteReceiver: true
     additionalScrapeConfigs:

terraform/authentik/proxy-apps.tfvars

@@ -189,6 +189,9 @@ EOT
     meta_icon                    = "https://img.icons8.com/color/48/minecraft-grass-cube.png"
     mode                         = "proxy"
     outpost                      = "kubernetes-outpost"
+    skip_path_regex              = <<-EOT
+/clients
+EOT
   }
   "pasarguard" = {
     name                         = "PasarGuard"