---
# yaml-language-server: $schema=https://kubernetes-schemas.pages.dev/helm.toolkit.fluxcd.io/helmrelease_v2.json
apiVersion: helm.toolkit.fluxcd.io/v2
kind: HelmRelease
metadata:
  name: kube-prometheus-stack
  namespace: monitoring
spec:
  interval: 30m
  chart:
    spec:
      chart: kube-prometheus-stack
      version: 67.0.0
      sourceRef:
        kind: HelmRepository
        name: prometheus-community
        namespace: flux-system
      interval: 5m
  maxHistory: 2
  install:
    createNamespace: true
    crds: CreateReplace
    remediation:
      retries: 3
  upgrade:
    cleanupOnFail: true
    crds: CreateReplace
    remediation:
      retries: 3
  uninstall:
    keepHistory: false
  dependsOn:
    - name: openebs
      namespace: openebs-system
    - name: thanos
      namespace: monitoring
  values:
    ###
    ### Component values
    ###
    kubeApiServer:
      enabled: true
      serviceMonitor:
        metricRelabelings:
          - action: replace
            sourceLabels:
              - node
            targetLabel: instance

    kubeProxy:
      enabled: false
    kubeControllerManager:
      enabled: false
    kubeEtcd:
      enabled: false
    kubeScheduler:
      enabled: false

    kubeStateMetrics:
      metricLabelsAllowlist:
        - "persistentvolumeclaims=[*]"
      prometheus:
        monitor:
          enabled: true
          relabelings:
            - action: replace
              regex: (.*)
              replacement: $1
              sourceLabels:
                - __meta_kubernetes_pod_node_name
              targetLabel: kubernetes_node

    grafana:
      enabled: false
      forceDeployDashboards: true

    prometheus-node-exporter:
      resources:
        requests:
          cpu: 23m
          memory: 64M
        limits:
          memory: 64M
      prometheus:
        monitor:
          enabled: true
          relabelings:
            - action: replace
              regex: (.*)
              replacement: $1
              sourceLabels:
                - __meta_kubernetes_pod_node_name
              targetLabel: kubernetes_node
    ###
    ### Prometheus operator values
    ###
    prometheusOperator:
      prometheusConfigReloader:
        resources:
          requests:
            cpu: 100m
            memory: 50Mi
          limits:
            cpu: 300m
            memory: 100Mi

    ###
    ### Prometheus instance values
    ###
    prometheus:
      ingress:
        enabled: true
        pathType: Prefix
        ingressClassName: "nginx"
        annotations:
          # nginx.ingress.kubernetes.io/auth-method: GET
          # nginx.ingress.kubernetes.io/auth-url: http://authelia.default.svc.cluster.local.:8888/api/verify
          # nginx.ingress.kubernetes.io/auth-signin: https://auth.${SECRET_EXTERNAL_DOMAIN}?rm=$request_method
          # nginx.ingress.kubernetes.io/auth-response-headers: Remote-User,Remote-Name,Remote-Groups,Remote-Email
          # nginx.ingress.kubernetes.io/auth-snippet: proxy_set_header X-Forwarded-Method $request_method;
          hajimari.io/appName: "Prometheus"
          hajimari.io/icon: simple-icons:prometheus
          gethomepage.dev/enabled: "true"
          gethomepage.dev/name: Prometheus
          gethomepage.dev/description: Systems and service monitoring system.
          gethomepage.dev/group: Infrastructure
          gethomepage.dev/icon: prometheus.png
          gethomepage.dev/pod-selector: >-
            app in (
              prometheus-kube-prometheus-stack-prometheus
            )
        hosts: ["prometheus.${SECRET_EXTERNAL_DOMAIN}"]
        tls:
          - hosts:
              - "prometheus.${SECRET_EXTERNAL_DOMAIN}"
      prometheusSpec:
        podMetadata:
          annotations:
            secret.reloader.stakater.com/reload: &secret thanos-objstore-config
        replicas: 2
        replicaExternalLabelName: replica
        scrapeInterval: 1m # Must match interval in Grafana Helm chart
        podMonitorSelector: &selector
          matchLabels: null
        probeSelector: *selector
        ruleSelector: *selector
        scrapeConfigSelector: *selector
        serviceMonitorSelector: *selector
        retention: 2d
        retentionSize: 15GB
        enableAdminAPI: true
        walCompression: true
        storageSpec:
          volumeClaimTemplate:
            spec:
              storageClassName: "rook-ceph-block"
              resources:
                requests:
                  storage: 20Gi
        thanos:
          image: quay.io/thanos/thanos:${THANOS_VERSION}
          version: "${THANOS_VERSION#v}"
          objectStorageConfig:
            existingSecret:
              name: *secret
              key: config
      thanosService:
        enabled: true
      thanosServiceMonitor:
        enabled: true
    alertmanager:
      config:
        global:
          resolve_timeout: 5m
        receivers:
          - name: "null"
          - name: "pushover"
            pushover_configs:
              - user_key: ${SECRET_KUBE_PROMETHEUS_STACK_ALERTMANAGER_PUSHOVER_USER_KEY}
                token: ${SECRET_KUBE_PROMETHEUS_STACK_ALERTMANAGER_PUSHOVER_TOKEN}
                send_resolved: true
                html: true
                priority: |-
                  {{ if eq .Status "firing" }}1{{ else }}0{{ end }}
                url_title: View in Alert Manager
                title: |-
                  [{{ .Status | toUpper -}}
                  {{ if eq .Status "firing" }}:{{ .Alerts.Firing | len }}{{- end -}}
                  ] {{ .CommonLabels.alertname }}
                message: |-
                  {{- range .Alerts }}
                    {{- if ne .Labels.severity "" }}
                      <b>Severity:</b> <i>{{ .Labels.severity }}</i>
                    {{- else }}
                      <b>Severity:</b> <i>N/A</i>
                    {{- end }}
                    {{- if ne .Annotations.description "" }}
                      <b>Description:</b> <i>{{ .Annotations.description }}</i>
                    {{- else if ne .Annotations.summary "" }}
                      <b>Summary:</b> <i>{{ .Annotations.summary }}</i>
                    {{- else if ne .Annotations.message "" }}
                      <b>Message:</b> <i>{{ .Annotations.message }}</i>
                    {{- else }}
                      <b>Description:</b> <i>N/A</i>
                    {{- end }}
                    {{- if gt (len .Labels.SortedPairs) 0 }}
                      <b>Details:</b>
                      {{- range .Labels.SortedPairs }}
                        • <b>{{ .Name }}:</b> <i>{{ .Value }}</i>
                      {{- end }}
                    {{- end }}
                  {{- end }}
        route:
          receiver: "pushover"
          routes:
            - receiver: "null"
              matchers:
                - alertname =~ "InfoInhibitor|Watchdog|RebootScheduled"
            - receiver: "pushover"
              matchers:
                - severity = "critical"
              continue: true
        inhibit_rules:
          - source_matchers:
              - severity = "critical"
            target_matchers:
              - severity = "warning"
            equal: ["alertname", "namespace"]
      alertmanagerSpec:
        replicas: 1
        podAntiAffinity: hard
        storage:
          volumeClaimTemplate:
            spec:
              storageClassName: rook-ceph-block
              resources:
                requests:
                  storage: 1Gi
      ingress:
        enabled: true
        pathType: Prefix
        ingressClassName: "nginx"
        annotations:
          # nginx.ingress.kubernetes.io/auth-method: GET
          # nginx.ingress.kubernetes.io/auth-url: http://authelia.default.svc.cluster.local.:8888/api/verify
          # nginx.ingress.kubernetes.io/auth-signin: https://auth.${SECRET_EXTERNAL_DOMAIN}?rm=$request_method
          # nginx.ingress.kubernetes.io/auth-response-headers: Remote-User,Remote-Name,Remote-Groups,Remote-Email
          # nginx.ingress.kubernetes.io/auth-snippet: proxy_set_header X-Forwarded-Method $request_method;
          hajimari.io/appName: "Alert Manager"
          hajimari.io/icon: mdi:alert-decagram-outline
          gethomepage.dev/enabled: "true"
          gethomepage.dev/name: Alert-Manager
          gethomepage.dev/description: Handles alerts sent by Prometheus.
          gethomepage.dev/group: Infrastructure
          gethomepage.dev/icon: alertmanager.png
          gethomepage.dev/pod-selector: >-
            app in (
              alertmanager-kube-prometheus-stack-alertmanager
            )
        hosts: ["alert-manager.${SECRET_EXTERNAL_DOMAIN}"]
        tls:
          - hosts:
              - "alert-manager.${SECRET_EXTERNAL_DOMAIN}"
      prometheus:
        monitor:
          enabled: true
          relabelings:
            - action: replace
              regex: (.*)
              replacement: $1
              sourceLabels:
                - __meta_kubernetes_pod_node_name
              targetLabel: kubernetes_node