Prometheus Operator 自定义报警

• prometheus
• 钉钉预警

部署Prometheus 软件

首先，检查一下我们所运行的Helm版本

$ helm version
version.BuildInfo{Version:"v3.1.2", GitCommit:"d878d4d45863e42fd5cff6743294a11d28a9abce", GitTreeState:"clean", GoVersion:"go1.13.8"}

当我们使用Helm 3时，我们需要添加一个stable 镜像仓库，因为默认状态下不会设置该仓库。

[root@ops1 test]# helm repo add stable http://mirror.azure.cn/kubernetes/charts/

[root@ops1 test]# helm repo list

NAME            URL

local           http://127.0.0.1:8879/charts                       

stable          http://mirror.azure.cn/kubernetes/charts/

incubator       http://mirror.azure.cn/kubernetes/charts-incubator/

[root@ops1 test]# helm repo update

Helm配置完成后，我们可以开始安装prometheus-operator

$ kubectl create namespace monitoring
namespace/monitoring created
[root@ops1 test]# helm search prometheus

stable/prometheus-operator              8.12.0          0.37.0          Provides easy monitoring definitions for Kubernetes servi...

[root@ops1 test]# helm fetch stable/prometheus-operator --version 8.12.0

[root@ops1 test]# tar -zxf prometheus-operator-8.12.0.tgz 

$ cd prometheus-operator

编辑values.yaml

cat values.yaml

# Default values for prometheus-operator.
# This is a YAML-formatted file.
# Declare variables to be passed into your templates.

## Provide a name in place of prometheus-operator for `app:` labels
##
nameOverride: ""

## Provide a k8s version to auto dashboard import script example: kubeTargetVersionOverride: 1.16.6
##
kubeTargetVersionOverride: ""

## Provide a name to substitute for the full names of resources
##
fullnameOverride: ""

## Labels to apply to all resources
##
commonLabels: {}
# scmhash: abc123
# myLabel: aakkmd

## Create default rules for monitoring the cluster
##
defaultRules:
  create: true
  rules:
    alertmanager: true
    etcd: true
    general: true
    k8s: true
    kubeApiserver: true
    kubeApiserverError: true
    kubePrometheusNodeAlerting: true
    kubePrometheusNodeRecording: true
    kubernetesAbsent: true
    kubernetesApps: true
    kubernetesResources: true
    kubernetesStorage: true
    kubernetesSystem: true
    kubeScheduler: true
    network: true
    node: true
    prometheus: true
    prometheusOperator: true
    time: true

  ## Runbook url prefix for default rules
  runbookUrl: https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#
  ## Reduce app namespace alert scope
  appNamespacesTarget: ".*"

  ## Labels for default rules
  labels: {}
  ## Annotations for default rules
  annotations: {}

## Provide custom recording or alerting rules to be deployed into the cluster.
##
additionalPrometheusRules: []
#  - name: my-rule-file
#    groups:
#      - name: my_group
#        rules:
#        - record: my_record
#          expr: 100 * my_record

##
global:
  rbac:
    create: true
    pspEnabled: true

  ## Reference to one or more secrets to be used when pulling images
  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
  ##
  imagePullSecrets: []
  # - name: "image-pull-secret"

## Configuration for alertmanager
## ref: https://prometheus.io/docs/alerting/alertmanager/
##
alertmanager:

  ## Deploy alertmanager
  ##
  enabled: true

  ## Api that prometheus will use to communicate with alertmanager. Possible values are v1, v2
  ##
  apiVersion: v2

  ## Service account for Alertmanager to use.
  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/
  ##
  serviceAccount:
    create: true
    name: ""

  ## Configure pod disruption budgets for Alertmanager
  ## ref: https://kubernetes.io/docs/tasks/run-application/configure-pdb/#specifying-a-poddisruptionbudget
  ## This configuration is immutable once created and will require the PDB to be deleted to be changed
  ## https://github.com/kubernetes/kubernetes/issues/45398
  ##
  podDisruptionBudget:
    enabled: false
    minAvailable: 1
    maxUnavailable: ""

  ## Alertmanager configuration directives
  ## ref: https://prometheus.io/docs/alerting/configuration/#configuration-file
  ##      https://prometheus.io/webtools/alerting/routing-tree-editor/
  ##
  config:
    global:
      resolve_timeout: 5m
    route:
      group_by: ['job']
      group_wait: 30s
      group_interval: 5m
      repeat_interval: 12h
      receiver: 'null'
      routes:
      - match:
          alertname: Watchdog
        receiver: 'null'
    receivers:
    - name: 'null'

  ## Pass the Alertmanager configuration directives through Helm's templating
  ## engine. If the Alertmanager configuration contains Alertmanager templates,
  ## they'll need to be properly escaped so that they are not interpreted by
  ## Helm
  ## ref: https://helm.sh/docs/developing_charts/#using-the-tpl-function
  ##      https://prometheus.io/docs/alerting/configuration/#%3Ctmpl_string%3E
  ##      https://prometheus.io/docs/alerting/notifications/
  ##      https://prometheus.io/docs/alerting/notification_examples/
  tplConfig: false

  ## Alertmanager template files to format alerts
  ## ref: https://prometheus.io/docs/alerting/notifications/
  ##      https://prometheus.io/docs/alerting/notification_examples/
  ##
  templateFiles: {}
  #
  ## An example template:
  #   template_1.tmpl: |-
  #       {{ define "cluster" }}{{ .ExternalURL | reReplaceAll ".*alertmanager\\.(.*)" "$1" }}{{ end }}
  #
  #       {{ define "slack.myorg.text" }}
  #       {{- $root := . -}}
  #       {{ range .Alerts }}
  #         *Alert:* {{ .Annotations.summary }} - `{{ .Labels.severity }}`
  #         *Cluster:*  {{ template "cluster" $root }}
  #         *Description:* {{ .Annotations.description }}
  #         *Graph:* <{{ .GeneratorURL }}|:chart_with_upwards_trend:>
  #         *Runbook:* <{{ .Annotations.runbook }}|:spiral_note_pad:>
  #         *Details:*
  #           {{ range .Labels.SortedPairs }} • *{{ .Name }}:* `{{ .Value }}`
  #           {{ end }}

  ingress:
    enabled: false

    annotations: {}

    labels: {}

    ## Hosts must be provided if Ingress is enabled.
    ##
    hosts: []
      # - alertmanager.domain.com

    ## Paths to use for ingress rules - one path should match the alertmanagerSpec.routePrefix
    ##
    paths: []
    # - /

    ## TLS configuration for Alertmanager Ingress
    ## Secret must be manually created in the namespace
    ##
    tls: []
    # - secretName: alertmanager-general-tls
    #   hosts:
    #   - alertmanager.example.com

  ## Configuration for Alertmanager secret
  ##
  secret:
    annotations: {}

  ## Configuration for Alertmanager service
  ##
  service:
    annotations: {}
    labels: {}
    clusterIP: ""

    ## Port for Alertmanager Service to listen on
    ##
    port: 9093
    ## To be used with a proxy extraContainer port
    ##
    targetPort: 9093
    ## Port to expose on each node
    ## Only used if service.type is 'NodePort'
    ##
    nodePort: 30091
    ## List of IP addresses at which the Prometheus server service is available
    ## Ref: https://kubernetes.io/docs/user-guide/services/#external-ips
    ##
    externalIPs: []
    loadBalancerIP: ""
    loadBalancerSourceRanges: []
    ## Service type
    ##
    #type: ClusterIP
    type: NodePort

  ## If true, create a serviceMonitor for alertmanager
  ##
  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""
    selfMonitor: true

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

  ## Settings affecting alertmanagerSpec
  ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#alertmanagerspec
  ##
  alertmanagerSpec:
    ## Standard object’s metadata. More info: https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md#metadata
    ## Metadata Labels and Annotations gets propagated to the Alertmanager pods.
    ##
    podMetadata: {}

    ## Image of Alertmanager
    ##
    image:
      repository: quay.io/prometheus/alertmanager
      tag: v0.20.0

    ## If true then the user will be responsible to provide a secret with alertmanager configuration
    ## So when true the config part will be ignored (including templateFiles) and the one in the secret will be used
    ##
    useExistingSecret: false

    ## Secrets is a list of Secrets in the same namespace as the Alertmanager object, which shall be mounted into the
    ## Alertmanager Pods. The Secrets are mounted into /etc/alertmanager/secrets/.
    ##
    secrets: []

    ## ConfigMaps is a list of ConfigMaps in the same namespace as the Alertmanager object, which shall be mounted into the Alertmanager Pods.
    ## The ConfigMaps are mounted into /etc/alertmanager/configmaps/.
    ##
    configMaps: []

    ## ConfigSecret is the name of a Kubernetes Secret in the same namespace as the Alertmanager object, which contains configuration for
    ## this Alertmanager instance. Defaults to 'alertmanager-' The secret is mounted into /etc/alertmanager/config.
    ##
    # configSecret:

    ## Define Log Format
    # Use logfmt (default) or json-formatted logging
    logFormat: logfmt

    ## Log level for Alertmanager to be configured with.
    ##
    logLevel: info

    ## Size is the expected size of the alertmanager cluster. The controller will eventually make the size of the
    ## running cluster equal to the expected size.
    replicas: 1

    ## Time duration Alertmanager shall retain data for. Default is '120h', and must match the regular expression
    ## [0-9]+(ms|s|m|h) (milliseconds seconds minutes hours).
    ##
    retention: 120h

    ## Storage is the definition of how storage will be used by the Alertmanager instances.
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/user-guides/storage.md
    ##
    storage: {}
    # volumeClaimTemplate:
    #   spec:
    #     storageClassName: gluster
    #     accessModes: ["ReadWriteOnce"]
    #     resources:
    #       requests:
    #         storage: 50Gi
    #   selector: {}


    ## 	The external URL the Alertmanager instances will be available under. This is necessary to generate correct URLs. This is necessary if Alertmanager is not served from root of a DNS name.	string	false
    ##
    externalUrl:

    ## 	The route prefix Alertmanager registers HTTP handlers for. This is useful, if using ExternalURL and a proxy is rewriting HTTP routes of a request, and the actual ExternalURL is still true,
    ## but the server serves requests under a different route prefix. For example for use with kubectl proxy.
    ##
    routePrefix: /

    ## If set to true all actions on the underlying managed objects are not going to be performed, except for delete actions.
    ##
    paused: false

    ## Define which Nodes the Pods are scheduled on.
    ## ref: https://kubernetes.io/docs/user-guide/node-selection/
    ##
    nodeSelector: {}

    ## Define resources requests and limits for single Pods.
    ## ref: https://kubernetes.io/docs/user-guide/compute-resources/
    ##
    resources: {}
    # requests:
    #   memory: 400Mi

    ## Pod anti-affinity can prevent the scheduler from placing Prometheus replicas on the same node.
    ## The default value "soft" means that the scheduler should *prefer* to not schedule two replica pods onto the same node but no guarantee is provided.
    ## The value "hard" means that the scheduler is *required* to not schedule two replica pods onto the same node.
    ## The value "" will disable pod anti-affinity so that no anti-affinity rules will be configured.
    ##
    podAntiAffinity: ""

    ## If anti-affinity is enabled sets the topologyKey to use for anti-affinity.
    ## This can be changed to, for example, failure-domain.beta.kubernetes.io/zone
    ##
    podAntiAffinityTopologyKey: kubernetes.io/hostname

    ## Assign custom affinity rules to the alertmanager instance
    ## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
    ##
    affinity: {}
    # nodeAffinity:
    #   requiredDuringSchedulingIgnoredDuringExecution:
    #     nodeSelectorTerms:
    #     - matchExpressions:
    #       - key: kubernetes.io/e2e-az-name
    #         operator: In
    #         values:
    #         - e2e-az1
    #         - e2e-az2

    ## If specified, the pod's tolerations.
    ## ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
    ##
    tolerations: []
    # - key: "key"
    #   operator: "Equal"
    #   value: "value"
    #   effect: "NoSchedule"

    ## SecurityContext holds pod-level security attributes and common container settings.
    ## This defaults to non root user with uid 1000 and gid 2000.	*v1.PodSecurityContext	false
    ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/security-context/
    ##
    securityContext:
      runAsNonRoot: true
      runAsUser: 1000
      fsGroup: 2000

    ## ListenLocal makes the Alertmanager server listen on loopback, so that it does not bind against the Pod IP.
    ## Note this is only for the Alertmanager UI, not the gossip communication.
    ##
    listenLocal: false

    ## Containers allows injecting additional containers. This is meant to allow adding an authentication proxy to an Alertmanager pod.
    ##
    containers: []

    ## Priority class assigned to the Pods
    ##
    priorityClassName: ""

    ## AdditionalPeers allows injecting a set of additional Alertmanagers to peer with to form a highly available cluster.
    ##
    additionalPeers: []

    ## PortName to use for Alert Manager.
    ##
    portName: "web"


## Using default values from https://github.com/helm/charts/blob/master/stable/grafana/values.yaml
##
grafana:
  enabled: true

  ## Deploy default dashboards.
  ##
  defaultDashboardsEnabled: true

  adminPassword: prom-operator

  ingress:
    ## If true, Grafana Ingress will be created
    ##
    enabled: false

    ## Annotations for Grafana Ingress
    ##
    annotations: {}
      # kubernetes.io/ingress.class: nginx
      # kubernetes.io/tls-acme: "true"

    ## Labels to be added to the Ingress
    ##
    labels: {}

    ## Hostnames.
    ## Must be provided if Ingress is enable.
    ##
    # hosts:
    #   - grafana.domain.com
    hosts: []

    ## Path for grafana ingress
    path: /

    ## TLS configuration for grafana Ingress
    ## Secret must be manually created in the namespace
    ##
    tls: []
    # - secretName: grafana-general-tls
    #   hosts:
    #   - grafana.example.com

  sidecar:
    dashboards:
      enabled: true
      label: grafana_dashboard
    datasources:
      enabled: true
      defaultDatasourceEnabled: true

      ## Annotations for Grafana datasource configmaps
      ##
      annotations: {}

      ## Create datasource for each Pod of Prometheus StatefulSet;
      ## this uses headless service `prometheus-operated` which is
      ## created by Prometheus Operator
      ## ref: https://git.io/fjaBS
      createPrometheusReplicasDatasources: false
      label: grafana_datasource

  extraConfigmapMounts: []
  # - name: certs-configmap
  #   mountPath: /etc/grafana/ssl/
  #   configMap: certs-configmap
  #   readOnly: true

  ## Configure additional grafana datasources
  ## ref: http://docs.grafana.org/administration/provisioning/#datasources
  additionalDataSources: []
  #  - name: prometheus-sample
  #    access: proxy
  #    basicAuth: true
  #    basicAuthPassword: pass
  #    basicAuthUser: daco
  #    editable: false
  #    jsonData:
  #        tlsSkipVerify: true
  #    orgId: 1
  #    type: prometheus
  #    url: https://prometheus.svc:9090
  #    version: 1

  ## Passed to grafana subchart and used by servicemonitor below
  ##
  service:
    portName: service

  ## If true, create a serviceMonitor for grafana
  ##
  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""
    selfMonitor: true

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

## Component scraping the kube api server
##
kubeApiServer:
  enabled: true
  tlsConfig:
    serverName: kubernetes
    insecureSkipVerify: false

  ## If your API endpoint address is not reachable (as in AKS) you can replace it with the kubernetes service
  ##
  relabelings: []
  # - sourceLabels:
  #     - __meta_kubernetes_namespace
  #     - __meta_kubernetes_service_name
  #     - __meta_kubernetes_endpoint_port_name
  #   action: keep
  #   regex: default;kubernetes;https
  # - targetLabel: __address__
  #   replacement: kubernetes.default.svc:443

  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""
    jobLabel: component
    selector:
      matchLabels:
        component: apiserver
        provider: kubernetes

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

## Component scraping the kubelet and kubelet-hosted cAdvisor
##
kubelet:
  enabled: true
  namespace: kube-system

  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""

    ## Enable scraping the kubelet over https. For requirements to enable this see
    ## https://github.com/coreos/prometheus-operator/issues/926
    ##
    https: true

    ## Metric relabellings to apply to samples before ingestion
    ##
    cAdvisorMetricRelabelings: []
    # - sourceLabels: [__name__, image]
    #   separator: ;
    #   regex: container_([a-z_]+);
    #   replacement: $1
    #   action: drop
    # - sourceLabels: [__name__]
    #   separator: ;
    #   regex: container_(network_tcp_usage_total|network_udp_usage_total|tasks_state|cpu_load_average_10s)
    #   replacement: $1
    #   action: drop

    # 	relabel configs to apply to samples before ingestion.
    #   metrics_path is required to match upstream rules and charts
    ##
    cAdvisorRelabelings:
      - sourceLabels: [__metrics_path__]
        targetLabel: metrics_path
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

    metricRelabelings: []
    # - sourceLabels: [__name__, image]
    #   separator: ;
    #   regex: container_([a-z_]+);
    #   replacement: $1
    #   action: drop
    # - sourceLabels: [__name__]
    #   separator: ;
    #   regex: container_(network_tcp_usage_total|network_udp_usage_total|tasks_state|cpu_load_average_10s)
    #   replacement: $1
    #   action: drop

    # 	relabel configs to apply to samples before ingestion.
    #   metrics_path is required to match upstream rules and charts
    ##
    relabelings:
      - sourceLabels: [__metrics_path__]
        targetLabel: metrics_path
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

## Component scraping the kube controller manager
##
kubeControllerManager:
  enabled: true

  ## If your kube controller manager is not deployed as a pod, specify IPs it can be found on
  ##
  endpoints: []
  # - 10.141.4.22
  # - 10.141.4.23
  # - 10.141.4.24

  ## If using kubeControllerManager.endpoints only the port and targetPort are used
  ##
  service:
    port: 10252
    targetPort: 10252
    # selector:
    #   component: kube-controller-manager

  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""

    ## Enable scraping kube-controller-manager over https.
    ## Requires proper certs (not self-signed) and delegated authentication/authorization checks
    ##
    https: false

    # Skip TLS certificate validation when scraping
    insecureSkipVerify: null

    # Name of the server to use when validating TLS certificate
    serverName: null

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

## Component scraping coreDns. Use either this or kubeDns
##
coreDns:
  enabled: true
  service:
    port: 9153
    targetPort: 9153
    # selector:
    #   k8s-app: kube-dns
  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

## Component scraping kubeDns. Use either this or coreDns
##
kubeDns:
  enabled: false
  service:
    dnsmasq:
      port: 10054
      targetPort: 10054
    skydns:
      port: 10055
      targetPort: 10055
    # selector:
    #   k8s-app: kube-dns
  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace
    dnsmasqMetricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    dnsmasqRelabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

## Component scraping etcd
##
kubeEtcd:
  enabled: true

  ## If your etcd is not deployed as a pod, specify IPs it can be found on
  ##
  endpoints: []
  # - 10.141.4.22
  # - 10.141.4.23
  # - 10.141.4.24

  ## Etcd service. If using kubeEtcd.endpoints only the port and targetPort are used
  ##
  service:
    port: 2379
    targetPort: 2379
    # selector:
    #   component: etcd

  ## Configure secure access to the etcd cluster by loading a secret into prometheus and
  ## specifying security configuration below. For example, with a secret named etcd-client-cert
  ##
  ## serviceMonitor:
  ##   scheme: https
  ##   insecureSkipVerify: false
  ##   serverName: localhost
  ##   caFile: /etc/prometheus/secrets/etcd-client-cert/etcd-ca
  ##   certFile: /etc/prometheus/secrets/etcd-client-cert/etcd-client
  ##   keyFile: /etc/prometheus/secrets/etcd-client-cert/etcd-client-key
  ##
  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""
    scheme: http
    insecureSkipVerify: false
    serverName: ""
    caFile: ""
    certFile: ""
    keyFile: ""

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace


## Component scraping kube scheduler
##
kubeScheduler:
  enabled: true

  ## If your kube scheduler is not deployed as a pod, specify IPs it can be found on
  ##
  endpoints: []
  # - 10.141.4.22
  # - 10.141.4.23
  # - 10.141.4.24

  ## If using kubeScheduler.endpoints only the port and targetPort are used
  ##
  service:
    port: 10251
    targetPort: 10251
    # selector:
    #   component: kube-scheduler

  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""
    ## Enable scraping kube-scheduler over https.
    ## Requires proper certs (not self-signed) and delegated authentication/authorization checks
    ##
    https: false

    ## Skip TLS certificate validation when scraping
    insecureSkipVerify: null

    ## Name of the server to use when validating TLS certificate
    serverName: null

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace


## Component scraping kube proxy
##
kubeProxy:
  enabled: true

  ## If your kube proxy is not deployed as a pod, specify IPs it can be found on
  ##
  endpoints: []
  # - 10.141.4.22
  # - 10.141.4.23
  # - 10.141.4.24

  service:
    port: 10249
    targetPort: 10249
    # selector:
    #   k8s-app: kube-proxy

  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""

    ## Enable scraping kube-proxy over https.
    ## Requires proper certs (not self-signed) and delegated authentication/authorization checks
    ##
    https: false

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]


## Component scraping kube state metrics
##
kubeStateMetrics:
  enabled: true
  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

## Configuration for kube-state-metrics subchart
##
kube-state-metrics:
  rbac:
    create: true
  podSecurityPolicy:
    enabled: true

## Deploy node exporter as a daemonset to all nodes
##
nodeExporter:
  enabled: true

  ## Use the value configured in prometheus-node-exporter.podLabels
  ##
  jobLabel: jobLabel

  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""

    ## How long until a scrape request times out. If not set, the Prometheus default scape timeout is used.
    ##
    scrapeTimeout: ""

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - sourceLabels: [__name__]
    #   separator: ;
    #   regex: ^node_mountstats_nfs_(event|operations|transport)_.+
    #   replacement: $1
    #   action: drop

    ## 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

## Configuration for prometheus-node-exporter subchart
##
prometheus-node-exporter:
  podLabels:
    ## Add the 'node-exporter' label to be used by serviceMonitor to match standard common usage in rules and grafana dashboards
    ##
    jobLabel: node-exporter
  extraArgs:
    - --collector.filesystem.ignored-mount-points=^/(dev|proc|sys|var/lib/docker/.+)($|/)
    - --collector.filesystem.ignored-fs-types=^(autofs|binfmt_misc|cgroup|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|mqueue|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|sysfs|tracefs)$

## Manages Prometheus and Alertmanager components
##
prometheusOperator:
  enabled: true

  # If true prometheus operator will create and update its CRDs on startup
  manageCrds: true

  tlsProxy:
    enabled: true
    image:
      repository: squareup/ghostunnel
      tag: v1.5.2
      pullPolicy: IfNotPresent
    resources: {}

  ## Admission webhook support for PrometheusRules resources added in Prometheus Operator 0.30 can be enabled to prevent incorrectly formatted
  ## rules from making their way into prometheus and potentially preventing the container from starting
  admissionWebhooks:
    failurePolicy: Fail
    enabled: true
    ## If enabled, generate a self-signed certificate, then patch the webhook configurations with the generated data.
    ## On chart upgrades (or if the secret exists) the cert will not be re-generated. You can use this to provide your own
    ## certs ahead of time if you wish.
    ##
    patch:
      enabled: true
      image:
        repository: jettech/kube-webhook-certgen
        tag: v1.0.0
        pullPolicy: IfNotPresent
      resources: {}
      ## Provide a priority class name to the webhook patching job
      ##
      priorityClassName: ""
      podAnnotations: {}
      nodeSelector: {}
      affinity: {}
      tolerations: []

  ## Namespaces to scope the interaction of the Prometheus Operator and the apiserver (allow list).
  ## This is mutually exclusive with denyNamespaces. Setting this to an empty object will disable the configuration
  ##
  namespaces: {}
    # releaseNamespace: true
    # additional:
    # - kube-system

  ## Namespaces not to scope the interaction of the Prometheus Operator (deny list).
  ##
  denyNamespaces: []

  ## Service account for Alertmanager to use.
  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/
  ##
  serviceAccount:
    create: true
    name: ""

  ## Configuration for Prometheus operator service
  ##
  service:
    annotations: {}
    labels: {}
    clusterIP: ""

  ## Port to expose on each node
  ## Only used if service.type is 'NodePort'
  ##
    nodePort: 30080

    nodePortTls: 30443

  ## Additional ports to open for Prometheus service
  ## ref: https://kubernetes.io/docs/concepts/services-networking/service/#multi-port-services
  ##
    additionalPorts: []

  ## Loadbalancer IP
  ## Only use if service.type is "loadbalancer"
  ##
    loadBalancerIP: ""
    loadBalancerSourceRanges: []

  ## Service type
  ## NodePort, ClusterIP, loadbalancer
  ##
    type: ClusterIP

    ## List of IP addresses at which the Prometheus server service is available
    ## Ref: https://kubernetes.io/docs/user-guide/services/#external-ips
    ##
    externalIPs: []

  ## Deploy CRDs used by Prometheus Operator.
  ##
  createCustomResource: true

  ## Attempt to clean up CRDs created by Prometheus Operator.
  ##
  cleanupCustomResource: false

  ## Labels to add to the operator pod
  ##
  podLabels: {}

  ## Annotations to add to the operator pod
  ##
  podAnnotations: {}

  ## Assign a PriorityClassName to pods if set
  # priorityClassName: ""

  ## Define Log Format
  # Use logfmt (default) or json-formatted logging
  # logFormat: logfmt

  ## Decrease log verbosity to errors only
  # logLevel: error

  ## If true, the operator will create and maintain a service for scraping kubelets
  ## ref: https://github.com/coreos/prometheus-operator/blob/master/helm/prometheus-operator/README.md
  ##
  kubeletService:
    enabled: true
    namespace: kube-system

  ## Create a servicemonitor for the operator
  ##
  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""
    selfMonitor: true

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

  ## Resource limits & requests
  ##
  resources: {}
  # limits:
  #   cpu: 200m
  #   memory: 200Mi
  # requests:
  #   cpu: 100m
  #   memory: 100Mi

  ## Define which Nodes the Pods are scheduled on.
  ## ref: https://kubernetes.io/docs/user-guide/node-selection/
  ##
  nodeSelector: {}

  ## Tolerations for use with node taints
  ## ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
  ##
  tolerations: []
  # - key: "key"
  #   operator: "Equal"
  #   value: "value"
  #   effect: "NoSchedule"

  ## Assign custom affinity rules to the prometheus operator
  ## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
  ##
  affinity: {}
    # nodeAffinity:
    #   requiredDuringSchedulingIgnoredDuringExecution:
    #     nodeSelectorTerms:
    #     - matchExpressions:
    #       - key: kubernetes.io/e2e-az-name
    #         operator: In
    #         values:
    #         - e2e-az1
    #         - e2e-az2

  securityContext:
    runAsNonRoot: true
    runAsUser: 65534

  ## Prometheus-operator image
  ##
  image:
    repository: quay.io/coreos/prometheus-operator
    tag: v0.37.0
    pullPolicy: IfNotPresent

  ## Configmap-reload image to use for reloading configmaps
  ##
  configmapReloadImage:
    repository: quay.io/coreos/configmap-reload
    tag: v0.0.1

  ## Prometheus-config-reloader image to use for config and rule reloading
  ##
  prometheusConfigReloaderImage:
    repository: quay.io/coreos/prometheus-config-reloader
    tag: v0.37.0

  ## Set the prometheus config reloader side-car CPU limit
  ##
  configReloaderCpu: 100m

  ## Set the prometheus config reloader side-car memory limit
  ##
  configReloaderMemory: 25Mi

  ## Hyperkube image to use when cleaning up
  ##
  hyperkubeImage:
    repository: k8s.gcr.io/hyperkube
    tag: v1.12.1
    pullPolicy: IfNotPresent

## Deploy a Prometheus instance
##
prometheus:

  enabled: true

  ## Annotations for Prometheus
  ##
  annotations: {}

  ## Service account for Prometheuses to use.
  ## ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/
  ##
  serviceAccount:
    create: true
    name: ""

  ## Configuration for Prometheus service
  ##
  service:
    annotations: {}
    labels: {}
    clusterIP: ""

    ## Port for Prometheus Service to listen on
    ##
    port: 9090

    ## To be used with a proxy extraContainer port
    targetPort: 9090

    ## List of IP addresses at which the Prometheus server service is available
    ## Ref: https://kubernetes.io/docs/user-guide/services/#external-ips
    ##
    externalIPs: []

    ## Port to expose on each node
    ## Only used if service.type is 'NodePort'
    ##
    nodePort: 30090
    type: NodePort

    ## Loadbalancer IP
    ## Only use if service.type is "loadbalancer"
    loadBalancerIP: ""
    loadBalancerSourceRanges: []
    ## Service type
    ##
    ##type: ClusterIP

    sessionAffinity: ""

  ## Configuration for creating a separate Service for each statefulset Prometheus replica
  ##
  servicePerReplica:
    enabled: false
    annotations: {}

    ## Port for Prometheus Service per replica to listen on
    ##
    port: 9090

    ## To be used with a proxy extraContainer port
    targetPort: 9090

    ## Port to expose on each node
    ## Only used if servicePerReplica.type is 'NodePort'
    ##
    nodePort: 30091

    ## Loadbalancer source IP ranges
    ## Only used if servicePerReplica.type is "loadbalancer"
    loadBalancerSourceRanges: []
    ## Service type
    ##
    #type: NodePort
    type: ClusterIP

  ## Configure pod disruption budgets for Prometheus
  ## ref: https://kubernetes.io/docs/tasks/run-application/configure-pdb/#specifying-a-poddisruptionbudget
  ## This configuration is immutable once created and will require the PDB to be deleted to be changed
  ## https://github.com/kubernetes/kubernetes/issues/45398
  ##
  podDisruptionBudget:
    enabled: false
    minAvailable: 1
    maxUnavailable: ""

  ingress:
    enabled: false
    annotations: {}
    labels: {}

    ## Hostnames.
    ## Must be provided if Ingress is enabled.
    ##
    # hosts:
    #   - prometheus.domain.com
    hosts: []

    ## Paths to use for ingress rules - one path should match the prometheusSpec.routePrefix
    ##
    paths: []
    # - /

    ## TLS configuration for Prometheus Ingress
    ## Secret must be manually created in the namespace
    ##
    tls: []
      # - secretName: prometheus-general-tls
      #   hosts:
      #     - prometheus.example.com

  ## Configuration for creating an Ingress that will map to each Prometheus replica service
  ## prometheus.servicePerReplica must be enabled
  ##
  ingressPerReplica:
    enabled: false
    annotations: {}
    labels: {}

    ## Final form of the hostname for each per replica ingress is
    ## {{ ingressPerReplica.hostPrefix }}-{{ $replicaNumber }}.{{ ingressPerReplica.hostDomain }}
    ##
    ## Prefix for the per replica ingress that will have `-$replicaNumber`
    ## appended to the end
    hostPrefix: ""
    ## Domain that will be used for the per replica ingress
    hostDomain: ""

    ## Paths to use for ingress rules
    ##
    paths: []
    # - /

    ## Secret name containing the TLS certificate for Prometheus per replica ingress
    ## Secret must be manually created in the namespace
    tlsSecretName: ""

  ## Configure additional options for default pod security policy for Prometheus
  ## ref: https://kubernetes.io/docs/concepts/policy/pod-security-policy/
  podSecurityPolicy:
    allowedCapabilities: []

  serviceMonitor:
    ## Scrape interval. If not set, the Prometheus default scrape interval is used.
    ##
    interval: ""
    selfMonitor: true

    ## scheme: HTTP scheme to use for scraping. Can be used with `tlsConfig` for example if using istio mTLS.
    scheme: ""

    ## tlsConfig: TLS configuration to use when scraping the endpoint. For example if using istio mTLS.
    ## Of type: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#tlsconfig
    tlsConfig: {}

    bearerTokenFile:

    ## 	metric relabel configs to apply to samples before ingestion.
    ##
    metricRelabelings: []
    # - action: keep
    #   regex: 'kube_(daemonset|deployment|pod|namespace|node|statefulset).+'
    #   sourceLabels: [__name__]

    # 	relabel configs to apply to samples before ingestion.
    ##
    relabelings: []
    # - sourceLabels: [__meta_kubernetes_pod_node_name]
    #   separator: ;
    #   regex: ^(.*)$
    #   targetLabel: nodename
    #   replacement: $1
    #   action: replace

  ## Settings affecting prometheusSpec
  ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#prometheusspec
  ##
  prometheusSpec:
    ## If true, pass --storage.tsdb.max-block-duration=2h to prometheus. This is already done if using Thanos
    ##
    disableCompaction: false
    ## APIServerConfig
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#apiserverconfig
    ##
    apiserverConfig: {}

    ## Interval between consecutive scrapes.
    ##
    scrapeInterval: ""

    ## Interval between consecutive evaluations.
    ##
    evaluationInterval: ""

    ## ListenLocal makes the Prometheus server listen on loopback, so that it does not bind against the Pod IP.
    ##
    listenLocal: false

    ## EnableAdminAPI enables Prometheus the administrative HTTP API which includes functionality such as deleting time series.
    ## This is disabled by default.
    ## ref: https://prometheus.io/docs/prometheus/latest/querying/api/#tsdb-admin-apis
    ##
    enableAdminAPI: false

    ## Image of Prometheus.
    ##
    image:
      repository: quay.io/prometheus/prometheus
      tag: v2.15.2

    ## Tolerations for use with node taints
    ## ref: https://kubernetes.io/docs/concepts/configuration/taint-and-toleration/
    ##
    tolerations: []
    #  - key: "key"
    #    operator: "Equal"
    #    value: "value"
    #    effect: "NoSchedule"

    ## Alertmanagers to which alerts will be sent
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#alertmanagerendpoints
    ##
    ## Default configuration will connect to the alertmanager deployed as part of this release
    ##
    alertingEndpoints: []
    # - name: ""
    #   namespace: ""
    #   port: http
    #   scheme: http
    #   pathPrefix: ""
    #   tlsConfig: {}
    #   bearerTokenFile: ""
    #   apiVersion: v2

    ## External labels to add to any time series or alerts when communicating with external systems
    ##
    externalLabels: {}

    ## Name of the external label used to denote replica name
    ##
    replicaExternalLabelName: ""

    ## If true, the Operator won't add the external label used to denote replica name
    ##
    replicaExternalLabelNameClear: false

    ## Name of the external label used to denote Prometheus instance name
    ##
    prometheusExternalLabelName: ""

    ## If true, the Operator won't add the external label used to denote Prometheus instance name
    ##
    prometheusExternalLabelNameClear: false

    ## External URL at which Prometheus will be reachable.
    ##
    externalUrl: ""

    ## Define which Nodes the Pods are scheduled on.
    ## ref: https://kubernetes.io/docs/user-guide/node-selection/
    ##
    nodeSelector: {}

    ## Secrets is a list of Secrets in the same namespace as the Prometheus object, which shall be mounted into the Prometheus Pods.
    ## The Secrets are mounted into /etc/prometheus/secrets/. Secrets changes after initial creation of a Prometheus object are not
    ## reflected in the running Pods. To change the secrets mounted into the Prometheus Pods, the object must be deleted and recreated
    ## with the new list of secrets.
    ##
    secrets: []

    ## ConfigMaps is a list of ConfigMaps in the same namespace as the Prometheus object, which shall be mounted into the Prometheus Pods.
    ## The ConfigMaps are mounted into /etc/prometheus/configmaps/.
    ##
    configMaps: []

    ## QuerySpec defines the query command line flags when starting Prometheus.
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#queryspec
    ##
    query: {}

    ## Namespaces to be selected for PrometheusRules discovery.
    ## If nil, select own namespace. Namespaces to be selected for ServiceMonitor discovery.
    ## See https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#namespaceselector for usage
    ##
    ruleNamespaceSelector: {}

    ## If true, a nil or {} value for prometheus.prometheusSpec.ruleSelector will cause the
    ## prometheus resource to be created with selectors based on values in the helm deployment,
    ## which will also match the PrometheusRule resources created
    ##
    ruleSelectorNilUsesHelmValues: true

    ## PrometheusRules to be selected for target discovery.
    ## If {}, select all ServiceMonitors
    ##
    ruleSelector: {}
    ## Example which select all prometheusrules resources
    ## with label "prometheus" with values any of "example-rules" or "example-rules-2"
    # ruleSelector:
    #   matchExpressions:
    #     - key: prometheus
    #       operator: In
    #       values:
    #         - example-rules
    #         - example-rules-2
    #
    ## Example which select all prometheusrules resources with label "role" set to "example-rules"
    # ruleSelector:
    #   matchLabels:
    #     role: example-rules

    ## If true, a nil or {} value for prometheus.prometheusSpec.serviceMonitorSelector will cause the
    ## prometheus resource to be created with selectors based on values in the helm deployment,
    ## which will also match the servicemonitors created
    ##
    serviceMonitorSelectorNilUsesHelmValues: true

    ## ServiceMonitors to be selected for target discovery.
    ## If {}, select all ServiceMonitors
    ##
    serviceMonitorSelector: {}
    ## Example which selects ServiceMonitors with label "prometheus" set to "somelabel"
    # serviceMonitorSelector:
    #   matchLabels:
    #     prometheus: somelabel

    ## Namespaces to be selected for ServiceMonitor discovery.
    ## See https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#namespaceselector for usage
    ##
    serviceMonitorNamespaceSelector: {}

    ## If true, a nil or {} value for prometheus.prometheusSpec.podMonitorSelector will cause the
    ## prometheus resource to be created with selectors based on values in the helm deployment,
    ## which will also match the podmonitors created
    ##
    podMonitorSelectorNilUsesHelmValues: true

    ## PodMonitors to be selected for target discovery.
    ## If {}, select all PodMonitors
    ##
    podMonitorSelector: {}
    ## Example which selects PodMonitors with label "prometheus" set to "somelabel"
    # podMonitorSelector:
    #   matchLabels:
    #     prometheus: somelabel

    ## Namespaces to be selected for PodMonitor discovery.
    ## See https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#namespaceselector for usage
    ##
    podMonitorNamespaceSelector: {}

    ## How long to retain metrics
    ##
    retention: 10d

    ## Maximum size of metrics
    ##
    retentionSize: ""

    ## Enable compression of the write-ahead log using Snappy.
    ##
    walCompression: false

    ## If true, the Operator won't process any Prometheus configuration changes
    ##
    paused: false

    ## Number of Prometheus replicas desired
    ##
    replicas: 1

    ## Log level for Prometheus be configured in
    ##
    logLevel: info

    ## Log format for Prometheus be configured in
    ##
    logFormat: logfmt

    ## Prefix used to register routes, overriding externalUrl route.
    ## Useful for proxies that rewrite URLs.
    ##
    routePrefix: /

    ## Standard object’s metadata. More info: https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md#metadata
    ## Metadata Labels and Annotations gets propagated to the prometheus pods.
    ##
    podMetadata: {}
    # labels:
    #   app: prometheus
    #   k8s-app: prometheus

    ## Pod anti-affinity can prevent the scheduler from placing Prometheus replicas on the same node.
    ## The default value "soft" means that the scheduler should *prefer* to not schedule two replica pods onto the same node but no guarantee is provided.
    ## The value "hard" means that the scheduler is *required* to not schedule two replica pods onto the same node.
    ## The value "" will disable pod anti-affinity so that no anti-affinity rules will be configured.
    podAntiAffinity: ""

    ## If anti-affinity is enabled sets the topologyKey to use for anti-affinity.
    ## This can be changed to, for example, failure-domain.beta.kubernetes.io/zone
    ##
    podAntiAffinityTopologyKey: kubernetes.io/hostname

    ## Assign custom affinity rules to the prometheus instance
    ## ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
    ##
    affinity: {}
    # nodeAffinity:
    #   requiredDuringSchedulingIgnoredDuringExecution:
    #     nodeSelectorTerms:
    #     - matchExpressions:
    #       - key: kubernetes.io/e2e-az-name
    #         operator: In
    #         values:
    #         - e2e-az1
    #         - e2e-az2

    ## The remote_read spec configuration for Prometheus.
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#remotereadspec
    remoteRead: []
    # - url: http://remote1/read

    ## The remote_write spec configuration for Prometheus.
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#remotewritespec
    remoteWrite: []
    # - url: http://remote1/push

    ## Enable/Disable Grafana dashboards provisioning for prometheus remote write feature
    remoteWriteDashboards: false

    ## Resource limits & requests
    ##
    resources: {}
    # requests:
    #   memory: 400Mi

    ## Prometheus StorageSpec for persistent data
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/user-guides/storage.md
    ##
    storageSpec: {}
    #  volumeClaimTemplate:
    #    spec:
    #      storageClassName: gluster
    #      accessModes: ["ReadWriteOnce"]
    #      resources:
    #        requests:
    #          storage: 50Gi
    #    selector: {}

    ## AdditionalScrapeConfigs allows specifying additional Prometheus scrape configurations. Scrape configurations
    ## are appended to the configurations generated by the Prometheus Operator. Job configurations must have the form
    ## as specified in the official Prometheus documentation:
    ## https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config. As scrape configs are
    ## appended, the user is responsible to make sure it is valid. Note that using this feature may expose the possibility
    ## to break upgrades of Prometheus. It is advised to review Prometheus release notes to ensure that no incompatible
    ## scrape configs are going to break Prometheus after the upgrade.
    ##
    ## The scrape configuraiton example below will find master nodes, provided they have the name .*mst.*, relabel the
    ## port to 2379 and allow etcd scraping provided it is running on all Kubernetes master nodes
    ##
    additionalScrapeConfigs: []
    # - job_name: kube-etcd
    #   kubernetes_sd_configs:
    #     - role: node
    #   scheme: https
    #   tls_config:
    #     ca_file:   /etc/prometheus/secrets/etcd-client-cert/etcd-ca
    #     cert_file: /etc/prometheus/secrets/etcd-client-cert/etcd-client
    #     key_file:  /etc/prometheus/secrets/etcd-client-cert/etcd-client-key
    #   relabel_configs:
    #   - action: labelmap
    #     regex: __meta_kubernetes_node_label_(.+)
    #   - source_labels: [__address__]
    #     action: replace
    #     targetLabel: __address__
    #     regex: ([^:;]+):(\d+)
    #     replacement: ${1}:2379
    #   - source_labels: [__meta_kubernetes_node_name]
    #     action: keep
    #     regex: .*mst.*
    #   - source_labels: [__meta_kubernetes_node_name]
    #     action: replace
    #     targetLabel: node
    #     regex: (.*)
    #     replacement: ${1}
    #   metric_relabel_configs:
    #   - regex: (kubernetes_io_hostname|failure_domain_beta_kubernetes_io_region|beta_kubernetes_io_os|beta_kubernetes_io_arch|beta_kubernetes_io_instance_type|failure_domain_beta_kubernetes_io_zone)
    #     action: labeldrop

    ## additionalPrometheusSecretsAnnotations allows to add annotations to the kubernetes secret. This can be useful
    ## when deploying via spinnaker to disable versioning on the secret, strategy.spinnaker.io/versioned: 'false'
    additionalPrometheusSecretsAnnotations: {}

    ## AdditionalAlertManagerConfigs allows for manual configuration of alertmanager jobs in the form as specified
    ## in the official Prometheus documentation https://prometheus.io/docs/prometheus/latest/configuration/configuration/#<alertmanager_config>.
    ## AlertManager configurations specified are appended to the configurations generated by the Prometheus Operator.
    ## As AlertManager configs are appended, the user is responsible to make sure it is valid. Note that using this
    ## feature may expose the possibility to break upgrades of Prometheus. It is advised to review Prometheus release
    ## notes to ensure that no incompatible AlertManager configs are going to break Prometheus after the upgrade.
    ##
    additionalAlertManagerConfigs: []
    # - consul_sd_configs:
    #   - server: consul.dev.test:8500
    #     scheme: http
    #     datacenter: dev
    #     tag_separator: ','
    #     services:
    #       - metrics-prometheus-alertmanager

    ## AdditionalAlertRelabelConfigs allows specifying Prometheus alert relabel configurations. Alert relabel configurations specified are appended
    ## to the configurations generated by the Prometheus Operator. Alert relabel configurations specified must have the form as specified in the
    ## official Prometheus documentation: https://prometheus.io/docs/prometheus/latest/configuration/configuration/#alert_relabel_configs.
    ## As alert relabel configs are appended, the user is responsible to make sure it is valid. Note that using this feature may expose the
    ## possibility to break upgrades of Prometheus. It is advised to review Prometheus release notes to ensure that no incompatible alert relabel
    ## configs are going to break Prometheus after the upgrade.
    ##
    additionalAlertRelabelConfigs: []
    # - separator: ;
    #   regex: prometheus_replica
    #   replacement: $1
    #   action: labeldrop

    ## SecurityContext holds pod-level security attributes and common container settings.
    ## This defaults to non root user with uid 1000 and gid 2000.
    ## https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md
    ##
    securityContext:
      runAsNonRoot: true
      runAsUser: 1000
      fsGroup: 2000

    ## 	Priority class assigned to the Pods
    ##
    priorityClassName: ""

    ## Thanos configuration allows configuring various aspects of a Prometheus server in a Thanos environment.
    ## This section is experimental, it may change significantly without deprecation notice in any release.
    ## This is experimental and may change significantly without backward compatibility in any release.
    ## ref: https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#thanosspec
    ##
    thanos: {}

    ## Containers allows injecting additional containers. This is meant to allow adding an authentication proxy to a Prometheus pod.
    ##  if using proxy extraContainer  update targetPort with proxy container port
    containers: []

    ## Enable additional scrape configs that are managed externally to this chart. Note that the prometheus
    ## will fail to provision if the correct secret does not exist.
    ## This option requires that you are maintaining a secret in the same namespace as Prometheus with
    ## a name of 'prometheus-operator-prometheus-scrape-confg' and a key of 'additional-scrape-configs.yaml' that
    ## contains a list of scrape_config's. The name of the secret may vary if you utilize the "fullnameOverride".
    ## This feature cannot be used in conjunction with the additionalScrapeConfigs attribute (the helm-generated
    ## secret will overwrite your self-maintained secret).
    ##
    ## scrape_config docs: https://prometheus.io/docs/prometheus/latest/configuration/configuration/#scrape_config
    ## explanation of "confg" typo: https://github.com/helm/charts/issues/13368
    additionalScrapeConfigsExternal: false

    ## PortName to use for Prometheus.
    ##
    portName: "web"

  additionalServiceMonitors: []
  ## Name of the ServiceMonitor to create
  ##
  # - name: ""

    ## Additional labels to set used for the ServiceMonitorSelector. Together with standard labels from
    ## the chart
    ##
    # additionalLabels: {}

    ## Service label for use in assembling a job name of the form <label value>-<port>
    ## If no label is specified, the service name is used.
    ##
    # jobLabel: ""

    ## labels to transfer from the kubernetes service to the target
    ##
    # targetLabels: ""

    ## Label selector for services to which this ServiceMonitor applies
    ##
    # selector: {}

    ## Namespaces from which services are selected
    ##
    # namespaceSelector:
      ## Match any namespace
      ##
      # any: false

      ## Explicit list of namespace names to select
      ##
      # matchNames: []

    ## Endpoints of the selected service to be monitored
    ##
    # endpoints: []
      ## Name of the endpoint's service port
      ## Mutually exclusive with targetPort
      # - port: ""

      ## Name or number of the endpoint's target port
      ## Mutually exclusive with port
      # - targetPort: ""

      ## File containing bearer token to be used when scraping targets
      ##
      #   bearerTokenFile: ""

      ## Interval at which metrics should be scraped
      ##
      #   interval: 30s

      ## HTTP path to scrape for metrics
      ##
      #   path: /metrics

      ## HTTP scheme to use for scraping
      ##
      #   scheme: http

      ## TLS configuration to use when scraping the endpoint
      ##
      #   tlsConfig:

          ## Path to the CA file
          ##
          # caFile: ""

          ## Path to client certificate file
          ##
          # certFile: ""

          ## Skip certificate verification
          ##
          # insecureSkipVerify: false

          ## Path to client key file
          ##
          # keyFile: ""

          ## Server name used to verify host name
          ##
          # serverName: ""

  additionalPodMonitors: []
  ## Name of the PodMonitor to create
  ##
  # - name: ""

    ## Additional labels to set used for the PodMonitorSelector. Together with standard labels from
    ## the chart
    ##
    # additionalLabels: {}

    ## Pod label for use in assembling a job name of the form <label value>-<port>
    ## If no label is specified, the pod endpoint name is used.
    ##
    # jobLabel: ""

    ## Label selector for pods to which this PodMonitor applies
    ##
    # selector: {}

    ## PodTargetLabels transfers labels on the Kubernetes Pod onto the target.
    ##
    # podTargetLabels: {}

    ## SampleLimit defines per-scrape limit on number of scraped samples that will be accepted.
    ##
    # sampleLimit: 0

    ## Namespaces from which pods are selected
    ##
    # namespaceSelector:
      ## Match any namespace
      ##
      # any: false

      ## Explicit list of namespace names to select
      ##
      # matchNames: []

    ## Endpoints of the selected pods to be monitored
    ## https://github.com/coreos/prometheus-operator/blob/master/Documentation/api.md#podmetricsendpoint
    ##
    # podMetricsEndpoints: []

安装 prometheus-operator

helm install --name prometheus-operator . --namespace=monitoring

让我们清理默认规则，使得我们可以更好地观察我们将要创建的那个规则。以下命令将删除所有规则，但会留下monitoring-demo-prometheus-operator-alertmanager.rules。

$ kubectl -n monitoring delete prometheusrules $(kubectl -n monitoring get prometheusrules | grep -v alert)

$ kubectl -n monitoring get prometheusrules
NAME                                          AGE
demo-prometheus-operator-alertmanager.rules   8m53s

注意：我们只保留一条规则是为了让demo更容易。但是有一条规则，你绝对不能删除，它位于monitoring-demo-prometheus-operator-general.rules.yaml中，被称为看门狗。该告警总是处于触发状态，其目的是确保整个告警流水线正常运转。

创建自己的预警

cat prometheus-operator-tomcat-rules.yaml

apiVersion: monitoring.coreos.com/v1

kind: PrometheusRule

metadata:

  labels:

    chart: prometheus-operator-8.12.0

    heritage: Tiller

    app: prometheus-operator

    release: prometheus-operator

  name: prometheus-operator-tomcat-test.rules

  namespace: monitoring

spec:
  groups:
  #- name: webhook
  #  rules:
  #  - alert: "钉钉报警测试"
  #    expr: rate(kube_pod_container_status_restarts_total{job="kube-state-metrics",
  #      namespace=~".*"}[15m]) * 60 * 5 > 0
  #    for: 5m
  #    labels:
  #      severity: '警告'
  #    annotations:
  #      summary: "{{ $labels.instance }}: 钉钉报警测试"
  #      description: "{{ $labels.instance }}：钉钉报警测试"
  #      custom: "钉钉报警测试"
  #      value: "{{$value}}"
  - name: alert-pods.rules
    rules:
    - alert: "160测试/灰度环境Pod应用挂起预警"
      annotations:
        description: 应用 {{ $labels.namespace }}/{{ $labels.pod }} ({{ $labels.container
          }}) is restarting {{ printf "%.2f" $value }} times / 5 minutes.
      expr: rate(kube_pod_container_status_restarts_total{job="kube-state-metrics",
        namespace=~".*"}[15m]) * 60 * 5 > 0
      for: 15m
      labels:
        severity: critical  # 注意这行，alertmangar要根据这个标签来进行报警

现在我们已经完成了Prometheus告警的设置，让我们配置Alertmanager，使得我们能够通过电子邮件获得告警通知。Alertmanager的配置位于Kubernetes secret对象中。

cat alertmanager.yaml

global:

  # 在没有报警的情况下声明为已解决的时间

  resolve_timeout: 5m

  # 配置邮件发送信息

  smtp_smarthost: 'smtp.qq.com:465'

  smtp_from: 'XXX@qq.com'

  smtp_auth_username: 'XXX@qq.com'

  smtp_auth_password: "xxxxxxxxxxx"

  smtp_hello: 'xxxx@qq.com'

  smtp_require_tls: false

# 所有报警信息进入后的根路由，用来设置报警的分发策略

route:

  # 这里的标签列表是接收到报警信息后的重新分组标签，例如，接收到的报警信息里面有许多具有 cluster=A 和 alertname=LatncyHigh 这样的标签的报警信息将会批量被聚合到一个分组里面

  group_by: ['alertname', 'cluster','namespace']

  # 当一个新的报警分组被创建后，需要等待至少group_wait时间来初始化通知，这种方式可以确保您能有足够的时间为同一分组来获取多个警报，然后一起触发这个报警信息。

  group_wait: 20m



  # 当第一个报警发送后，等待'group_interval'时间来发送新的一组报警信息。

  group_interval: 30m



  # 如果一个报警信息已经发送成功了，等待'repeat_interval'时间来重新发送他们

  repeat_interval: 25m



  # 默认的receiver：如果一个报警没有被一个route匹配，则发送给默认的接收器

  #receiver: default
  receiver: webhook



  # 上面所有的属性都由所有子路由继承，并且可以在每个子路由上进行覆盖。

  routes:

  - receiver: email

    group_wait: 10s

    match:

      alertManagerRule: node  #根据此标签，选择报警规则

  - receiver: webhook

    match:
      severity: critical




receivers:

- name: 'default'

  email_configs:

  - to: 'xxxx@qq.com'

    send_resolved: true

- name: 'email'

  email_configs:

  - to: 'xxxxx@qq.com'

    send_resolved: true

 # webhook_configs:

 # - url: 'http://dingtalk-hook:5000'

 #   send_resolved: true

- name: 'webhook'

  webhook_configs:

  - url: 'http://webhook-dingtalk/dingtalk/webhook1/send'

    send_resolved: true

kubectl create secret generic alertmanager-prometheus-operator-alertmanager --from-file=alertmanager.yaml -n monitoring
kubectl apply -f prometheus-operator-tomcat-rules.yaml

可能遇到的坑

kubectl get validatingwebhookconfigurations.admissionregistration.k8s.io
kubectl delete  validatingwebhookconfigurations.admissionregistration.k8s.io  prometheus-operator-admission
kubectl get MutatingWebhookConfiguration
kubectl delete MutatingWebhookConfiguration prometheus-operator-admission

---

Kubernetes集群Prometheus Operator钉钉报警配置

创建k8s dingtalk-webhook

cat dingtalk-webhook.yaml

apiVersion: apps/v1
kind: Deployment
metadata:
  name: webhook-dingtalk
  namespace: monitoring
spec:
  selector:
    matchLabels:
      app: dingtalk
  replicas: 1
  template:
    metadata:
      labels:
        app: dingtalk
    spec:
      nodeSelector:
        nodeType: master
      restartPolicy: Always
      containers:
      - name: dingtalk
        image: timonwong/prometheus-webhook-dingtalk:v1.4.0
        imagePullPolicy: IfNotPresent
        args:
          - '--web.enable-ui'
          - '--web.enable-lifecycle'
          - '--config.file=/mnt/data/dingtalk/dingdingalert/templates/config.yml'
        ports:
        - containerPort: 8060
          protocol: TCP
        volumeMounts:
        - mountPath: "/mnt/data/dingtalk/dingdingalert/templates"
          name: dingtalk-volume
      volumes:
      - name: dingtalk-volume
        hostPath:
          path: "/mnt/data/dingtalk/dingdingalert/templates"
        #persistentVolumeClaim:
        #  claimName: dingding-pvc
---
apiVersion: v1
kind: Service
metadata:
  name: webhook-dingtalk
  namespace: monitoring
spec:
  ports:
  - port: 80
    protocol: TCP
    targetPort: 8060
  selector:
    app: dingtalk
  sessionAffinity: None

cat /mnt/data/dingtalk/dingdingalert/templates/config.yml

templates:
  - /mnt/data/dingtalk/dingdingalert/templates/template.tmpl
targets:
  webhook1:
    url: https://oapi.dingtalk.com/robot/send?access_token=84e6cdba089128514d1a641faf8bd28655af2089a47c729877f23c697e71f09b

cat /mnt/data/dingtalk/dingdingalert/templates/template.tmpl

{{ define "ding.link.title" }}[监控报警]{{ end }}
{{ define "ding.link.content" -}}
{{- if gt (len .Alerts.Firing) 0 -}}
  {{ range $i, $alert := .Alerts.Firing }}
    [告警项目]:{{ index $alert.Labels "alertname" }}
    [告警实例]:{{ index $alert.Labels "instance" }}
    [告警级别]:{{ index $alert.Labels "severity" }}
    [告警详情]:{{ index $alert.Annotations "description" }}
    [触发时间]:{{ (.StartsAt.Add 28800e9).Format "2006-01-02 15:04:05" }}
  {{ end }}{{- end }}
{{- if gt (len .Alerts.Resolved) 0 -}}
  {{ range $i, $alert := .Alerts.Resolved }}
    [项目]:{{ index $alert.Labels "alertname" }}
    [实例]:{{ index $alert.Labels "instance" }}
    [状态]:正在重启
    [开始]:{{ (.StartsAt.Add 28800e9).Format "2006-01-02 15:04:05" }}
    [恢复]:{{ (.EndsAt.Add 28800e9).Format "2006-01-02 15:04:05" }}
  {{ end }}{{- end }}
{{- end }}