prometheus配置认证信息

安装ingress-nginx

1. 添加helm仓库地址,下载Charts

helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
helm pull ingress-nginx/ingress-nginx

2. 修改配置启动ingress-nginx

## nginx configuration
## Ref: https://github.com/kubernetes/ingress/blob/master/controllers/nginx/configuration.md
##
controller:
  image:
    repository: quay.io/kubernetes-ingress-controller/nginx-ingress-controller
    tag: "0.33.0"
    pullPolicy: IfNotPresent
    # www-data -> uid 101
    runAsUser: 101
    allowPrivilegeEscalation: true
​
  # Configures the ports the nginx-controller listens on
  containerPort:
    http: 80
    https: 443
​
  # Will add custom configuration options to Nginx https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/
  config: {}
​
  ## Annotations to be added to the controller config configuration configmap
  ##
  configAnnotations: {}
​
  # Will add custom headers before sending traffic to backends according to https://github.com/kubernetes/ingress-nginx/tree/master/docs/examples/customization/custom-headers
  proxySetHeaders: {}
​
  # Will add custom headers before sending response traffic to the client according to: https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/#add-headers
  addHeaders: {}
​
  # Optionally customize the pod dnsConfig.
  dnsConfig: {}
​
  # Optionally change this to ClusterFirstWithHostNet in case you have 'hostNetwork: true'.
  # By default, while using host network, name resolution uses the host's DNS. If you wish nginx-controller
  # to keep resolving names inside the k8s network, use ClusterFirstWithHostNet.
  dnsPolicy: ClusterFirst
​
  # Bare-metal considerations via the host network https://kubernetes.github.io/ingress-nginx/deploy/baremetal/#via-the-host-network
  # Ingress status was blank because there is no Service exposing the NGINX Ingress controller in a configuration using the host network, the default --publish-service flag used in standard cloud setups does not apply
  reportNodeInternalIp: false
​
  # Required for use with CNI based kubernetes installations (such as ones set up by kubeadm),
  # since CNI and hostport don't mix yet. Can be deprecated once https://github.com/kubernetes/kubernetes/issues/23920
  # is merged
  hostNetwork: true
​
  ## Use host ports 80 and 443
  ## Disabled by default
  ##
  hostPort:
    enabled: true
    ports:
      http: 80
      https: 443
​
  ## Election ID to use for status update
  ##
  electionID: ingress-controller-leader
​
  ## Name of the ingress class to route through this controller
  ##
  ingressClass: nginx
​
  # labels to add to the pod container metadata
  podLabels: {}
  #  key: value
​
  ## Security Context policies for controller pods
  ##
  podSecurityContext: {}
​
  ## See https://kubernetes.io/docs/tasks/administer-cluster/sysctl-cluster/ for
  ## notes on enabling and using sysctls
  ###
  sysctls: {}
  # sysctls:
  #   "net.core.somaxconn": "8192"
​
  ## Allows customization of the source of the IP address or FQDN to report
  ## in the ingress status field. By default, it reads the information provided
  ## by the service. If disable, the status field reports the IP address of the
  ## node or nodes where an ingress controller pod is running.
  publishService:
    enabled: true
    ## Allows overriding of the publish service to bind to
    ## Must be /
    ##
    pathOverride: ""
​
  ## Limit the scope of the controller
  ##
  scope:
    enabled: false
    namespace: ""   # defaults to .Release.Namespace
​
  ## Allows customization of the configmap / nginx-configmap namespace
  ##
  configMapNamespace: ""   # defaults to .Release.Namespace
​
  ## Allows customization of the tcp-services-configmap
  ##
  tcp:
    configMapNamespace: ""   # defaults to .Release.Namespace
    ## Annotations to be added to the tcp config configmap
    annotations: {}
​
  ## Allows customization of the udp-services-configmap
  ##
  udp:
    configMapNamespace: ""   # defaults to .Release.Namespace
    ## Annotations to be added to the udp config configmap
    annotations: {}
​
  ## Additional command line arguments to pass to nginx-ingress-controller
  ## E.g. to specify the default SSL certificate you can use
  ## extraArgs:
  ##   default-ssl-certificate: "/"
  extraArgs: {}
​
  ## Additional environment variables to set
  extraEnvs: []
  # extraEnvs:
  #   - name: FOO
  #     valueFrom:
  #       secretKeyRef:
  #         key: FOO
  #         name: secret-resource
​
  ## DaemonSet or Deployment
  ##
  kind: DaemonSet
​
  ## Annotations to be added to the controller Deployment or DaemonSet
  ##
  annotations: {}
​
  # The update strategy to apply to the Deployment or DaemonSet
  ##
  updateStrategy: {}
  #  rollingUpdate:
  #    maxUnavailable: 1
  #  type: RollingUpdate
​
  # minReadySeconds to avoid killing pods before we are ready
  ##
  minReadySeconds: 0
​
​
  ## Node tolerations for server scheduling to nodes with taints
  ## Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
  ##
  tolerations: []
  #  - key: "key"
  #    operator: "Equal|Exists"
  #    value: "value"
  #    effect: "NoSchedule|PreferNoSchedule|NoExecute(1.6 only)"
​
  ## Affinity and anti-affinity
  ## Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#affinity-and-anti-affinity
  ##
  affinity: {}
    # # An example of preferred pod anti-affinity, weight is in the range 1-100
    # podAntiAffinity:
    #   preferredDuringSchedulingIgnoredDuringExecution:
    #   - weight: 100
    #     podAffinityTerm:
    #       labelSelector:
    #         matchExpressions:
    #         - key: app
    #           operator: In
    #           values:
    #           - ingress-nginx
    #       topologyKey: kubernetes.io/hostname
​
    # # An example of required pod anti-affinity
    # podAntiAffinity:
    #   requiredDuringSchedulingIgnoredDuringExecution:
    #   - labelSelector:
    #       matchExpressions:
    #       - key: app
    #         operator: In
    #         values:
    #         - ingress-nginx
    #     topologyKey: "kubernetes.io/hostname"
​
  ## terminationGracePeriodSeconds
  ## wait up to five minutes for the drain of connections
  ##
  terminationGracePeriodSeconds: 300
​
  ## Node labels for controller pod assignment
  ## Ref: https://kubernetes.io/docs/user-guide/node-selection/
  ##
  nodeSelector: {}
​
  ## Liveness and readiness probe values
  ## Ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes
  ##
  livenessProbe:
    failureThreshold: 3
    initialDelaySeconds: 10
    periodSeconds: 10
    successThreshold: 1
    timeoutSeconds: 1
    port: 10254
  readinessProbe:
    failureThreshold: 3
    initialDelaySeconds: 10
    periodSeconds: 10
    successThreshold: 1
    timeoutSeconds: 1
    port: 10254
​
  # Path of the health check endpoint. All requests received on the port defined by
  # the healthz-port parameter are forwarded internally to this path.
  healthCheckPath: "/healthz"
​
  ## Annotations to be added to controller pods
  ##
  podAnnotations: {}
​
  replicaCount: 1
​
  minAvailable: 1
​
  # Define requests resources to avoid probe issues due to CPU utilization in busy nodes
  # ref: https://github.com/kubernetes/ingress-nginx/issues/4735#issuecomment-551204903
  # Ideally, there should be no limits.
  # https://engineering.indeedblog.com/blog/2019/12/cpu-throttling-regression-fix/
  resources:
  #  limits:
  #    cpu: 100m
  #    memory: 90Mi
    requests:
      cpu: 100m
      memory: 90Mi
​
  autoscaling:
    enabled: false
    minReplicas: 1
    maxReplicas: 11
    targetCPUUtilizationPercentage: 50
    targetMemoryUtilizationPercentage: 50
​
  autoscalingTemplate: []
  # Custom or additional autoscaling metrics
  # ref: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/#support-for-custom-metrics
  # - type: Pods
  #   pods:
  #     metric:
  #       name: nginx_ingress_controller_nginx_process_requests_total
  #     target:
  #       type: AverageValue
  #       averageValue: 10000m
​
  ## Enable mimalloc as a drop-in replacement for malloc.
  ## ref: https://github.com/microsoft/mimalloc
  ##
  enableMimalloc: false
​
  ## Override NGINX template
  customTemplate:
    configMapName: ""
    configMapKey: ""
​
  service:
    enabled: true
​
    annotations: {}
    labels: {}
    # clusterIP: ""
​
    ## List of IP addresses at which the controller services are available
    ## Ref: https://kubernetes.io/docs/user-guide/services/#external-ips
    ##
    externalIPs: []
​
    # loadBalancerIP: ""
    loadBalancerSourceRanges: []
​
    enableHttp: true
    enableHttps: true
​
    ## Set external traffic policy to: "Local" to preserve source IP on
    ## providers supporting it
    ## Ref: https://kubernetes.io/docs/tutorials/services/source-ip/#source-ip-for-services-with-typeloadbalancer
    # externalTrafficPolicy: ""
​
    # Must be either "None" or "ClientIP" if set. Kubernetes will default to "None".
    # Ref: https://kubernetes.io/docs/concepts/services-networking/service/#virtual-ips-and-service-proxies
    # sessionAffinity: ""
​
    # specifies the health check node port (numeric port number) for the service. If healthCheckNodePort isn’t specified,
    # the service controller allocates a port from your cluster’s NodePort range.
    # Ref: https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/#preserving-the-client-source-ip
    # healthCheckNodePort: 0
​
    ports:
      http: 80
      https: 443
​
    targetPorts:
      http: http
      https: https
​
    #type: LoadBalancer
​
    type: NodePort
    #nodePorts:
    #   ihttp: 32080
    #   https: 32443
    #   tcp:
    #     8080: 32808
    nodePorts:
      http: ""
      https: ""
      tcp: {}
      udp: {}
​
    ## Enables an additional internal load balancer (besides the external one).
    ## Annotations are mandatory for the load balancer to come up. Varies with the cloud service.
    internal:
      enabled: false
      annotations: {}
​
  extraContainers: []
  ## Additional containers to be added to the controller pod.
  ## See https://github.com/lemonldap-ng-controller/lemonldap-ng-controller as example.
  #  - name: my-sidecar
  #    image: nginx:latest
  #  - name: lemonldap-ng-controller
  #    image: lemonldapng/lemonldap-ng-controller:0.2.0
  #    args:
  #      - /lemonldap-ng-controller
  #      - --alsologtostderr
  #      - --configmap=$(POD_NAMESPACE)/lemonldap-ng-configuration
  #    env:
  #      - name: POD_NAME
  #        valueFrom:
  #          fieldRef:
  #            fieldPath: metadata.name
  #      - name: POD_NAMESPACE
  #        valueFrom:
  #          fieldRef:
  #            fieldPath: metadata.namespace
  #    volumeMounts:
  #    - name: copy-portal-skins
  #      mountPath: /srv/var/lib/lemonldap-ng/portal/skins
​
  extraVolumeMounts: []
  ## Additional volumeMounts to the controller main container.
  #  - name: copy-portal-skins
  #   mountPath: /var/lib/lemonldap-ng/portal/skins
​
  extraVolumes: []
  ## Additional volumes to the controller pod.
  #  - name: copy-portal-skins
  #    emptyDir: {}
​
  extraInitContainers: []
  ## Containers, which are run before the app containers are started.
  # - name: init-myservice
  #   image: busybox
  #   command: ['sh', '-c', 'until nslookup myservice; do echo waiting for myservice; sleep 2; done;']
​
  admissionWebhooks:
    enabled: true
    failurePolicy: Fail
    port: 8443
​
    service:
      annotations: {}
      # clusterIP: ""
      externalIPs: []
      # loadBalancerIP: ""
      loadBalancerSourceRanges: []
      servicePort: 443
      type: ClusterIP
​
    patch:
      enabled: true
      image:
        repository: docker.io/jettech/kube-webhook-certgen
        tag: v1.2.0
        pullPolicy: IfNotPresent
      ## Provide a priority class name to the webhook patching job
      ##
      priorityClassName: ""
      podAnnotations: {}
      nodeSelector: {}
      tolerations: []
      runAsUser: 2000
​
  metrics:
    port: 10254
    # if this port is changed, change healthz-port: in extraArgs: accordingly
    enabled: false
​
    service:
      annotations: {}
      # prometheus.io/scrape: "true"
      # prometheus.io/port: "10254"
​
      # clusterIP: ""
​
      ## List of IP addresses at which the stats-exporter service is available
      ## Ref: https://kubernetes.io/docs/user-guide/services/#external-ips
      ##
      externalIPs: []
​
      # loadBalancerIP: ""
      loadBalancerSourceRanges: []
      servicePort: 9913
      type: ClusterIP
​
    serviceMonitor:
      enabled: false
      additionalLabels: {}
      namespace: ""
      namespaceSelector: {}
      # Default: scrape .Release.Namespace only
      # To scrape all, use the following:
      # namespaceSelector:
      #   any: true
      scrapeInterval: 30s
      # honorLabels: true
​
    prometheusRule:
      enabled: false
      additionalLabels: {}
      # namespace: ""
      rules: []
        # # These are just examples rules, please adapt them to your needs
        # - alert: TooMany500s
        #   expr: 100 * ( sum( nginx_ingress_controller_requests{status=~"5.+"} ) / sum(nginx_ingress_controller_requests) ) > 5
        #   for: 1m
        #   labels:
        #     severity: critical
        #   annotations:
        #     description: Too many 5XXs
        #     summary: More than 5% of the all requests did return 5XX, this require your attention
        # - alert: TooMany400s
        #   expr: 100 * ( sum( nginx_ingress_controller_requests{status=~"4.+"} ) / sum(nginx_ingress_controller_requests) ) > 5
        #   for: 1m
        #   labels:
        #     severity: critical
        #   annotations:
        #     description: Too many 4XXs
        #     summary: More than 5% of the all requests did return 4XX, this require your attention
​
  ## Improve connection draining when ingress controller pod is deleted using a lifecycle hook:
  ## With this new hook, we increased the default terminationGracePeriodSeconds from 30 seconds
  ## to 300, allowing the draining of connections up to five minutes.
  ## If the active connections end before that, the pod will terminate gracefully at that time.
  ## To efectively take advantage of this feature, the Configmap feature
  ## worker-shutdown-timeout new value is 240s instead of 10s.
  ##
  lifecycle:
    preStop:
      exec:
        command:
          - /wait-shutdown
​
  priorityClassName: ""
​
## Rollback limit
##
revisionHistoryLimit: 10
​
# Maxmind license key to download GeoLite2 Databases
# https://blog.maxmind.com/2019/12/18/significant-changes-to-accessing-and-using-geolite2-databases
maxmindLicenseKey: ""
​
## Default 404 backend
##
defaultBackend:
  ##
  enabled: false
​
  image:
    repository: k8s.gcr.io/defaultbackend-amd64
    tag: "1.5"
    pullPolicy: IfNotPresent
    # nobody user -> uid 65534
    runAsUser: 65534
​
  extraArgs: {}
​
  serviceAccount:
    create: true
    name:
  ## Additional environment variables to set for defaultBackend pods
  extraEnvs: []
​
  port: 8080
​
  ## Readiness and liveness probes for default backend
  ## Ref: https://kubernetes.io/docs/tasks/configure-pod-container/configure-liveness-readiness-probes/
  ##
  livenessProbe:
    failureThreshold: 3
    initialDelaySeconds: 30
    periodSeconds: 10
    successThreshold: 1
    timeoutSeconds: 5
  readinessProbe:
    failureThreshold: 6
    initialDelaySeconds: 0
    periodSeconds: 5
    successThreshold: 1
    timeoutSeconds: 5
​
  ## Node tolerations for server scheduling to nodes with taints
  ## Ref: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
  ##
  tolerations: []
  #  - key: "key"
  #    operator: "Equal|Exists"
  #    value: "value"
  #    effect: "NoSchedule|PreferNoSchedule|NoExecute(1.6 only)"
​
  affinity: {}
​
  ## Security Context policies for controller pods
  ## See https://kubernetes.io/docs/tasks/administer-cluster/sysctl-cluster/ for
  ## notes on enabling and using sysctls
  ##
  podSecurityContext: {}
​
  # labels to add to the pod container metadata
  podLabels: {}
  #  key: value
​
  ## Node labels for default backend pod assignment
  ## Ref: https://kubernetes.io/docs/user-guide/node-selection/
  ##
  nodeSelector: {}
​
  ## Annotations to be added to default backend pods
  ##
  podAnnotations: {}
​
  replicaCount: 1
​
  minAvailable: 1
​
  resources: {}
  # limits:
  #   cpu: 10m
  #   memory: 20Mi
  # requests:
  #   cpu: 10m
  #   memory: 20Mi
​
  service:
    annotations: {}
​
    # clusterIP: ""
​
    ## List of IP addresses at which the default backend service is available
    ## Ref: https://kubernetes.io/docs/user-guide/services/#external-ips
    ##
    externalIPs: []
​
    # loadBalancerIP: ""
    loadBalancerSourceRanges: []
    servicePort: 80
    type: ClusterIP
​
  priorityClassName: ""
​
## Enable RBAC as per https://github.com/kubernetes/ingress/tree/master/examples/rbac/nginx and https://github.com/kubernetes/ingress/issues/266
rbac:
  create: true
  scope: false
​
# If true, create & use Pod Security Policy resources
# https://kubernetes.io/docs/concepts/policy/pod-security-policy/
podSecurityPolicy:
  enabled: false
​
serviceAccount:
  create: true
  name:
​
## Optional array of imagePullSecrets containing private registry credentials
## Ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
imagePullSecrets: []
# - name: secretName
​
# TCP service key:value pairs
# Ref: https://github.com/kubernetes/contrib/tree/master/ingress/controllers/nginx/examples/tcp
##
tcp: {}
#  8080: "default/example-tcp-svc:9000"
​
# UDP service key:value pairs
# Ref: https://github.com/kubernetes/contrib/tree/master/ingress/controllers/nginx/examples/udp
##
udp: {}
#  53: "kube-system/kube-dns:53"
​

安装

 helm install nginx-ingress -n nginx-ingress ./nginx-ingress 

生成密码

1. 生成密码

htpasswd -c auth user1
New password: 
New password:
Re-type new password:
Adding password for user user1

2. 保存密码

kubectl -n  create secret generic basic-auth --from-file=auth
secret "basic-auth" created
 
 
kubectl get secret basic-auth -o yaml
apiVersion: v1
data:
  auth: Zm9vOiRhcHIxJE9DRzZYeWJcJGNrKDBGSERBa29YWUlsSDkuY3lzVDAK
kind: Secret
metadata:
  name: basic-auth
  namespace: default
type: Opaque

创建ingress

[root@master ingressyaml]# vi proingress.yaml 
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  annotations:
      kubernetes.io/ingress.class: nginx
      nginx.ingress.kubernetes.io/auth-type: basic
      nginx.ingress.kubernetes.io/auth-secret: basic-auth
      nginx.ingress.kubernetes.io/auth-realm: "Authentication Required - user1"
  name: prometheus
  namespace: monitoring
spec:
  rules:
  - host: prometheus.server.com
    http:
      paths:
        - backend:
            serviceName: prometheus-server
            servicePort: 80
kubectl apply -f proingress.yaml

访问

修改宿主机hosts 192.168.75.129   www.gra222.com prometheus.server.com

Prometheus-master配置认证的用户和密码

 

##################Prometheus.yaml##############
# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
scrape_configs:
  # The job name is added as a label `job=` to any timeseries scraped from this config.
  - job_name: sd-file
    basic_auth:
     username: user1
     password: "123"
    file_sd_configs:
      - files: ['/root/test_server.json']
        refresh_interval: 5s
  - job_name: 'prometheus'
​
    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.
​
    static_configs:
    - targets: ['localhost:9090']
#######################test_server.json##############
[{
    "targets": ["prometheus.server.com"],
    "labels": {
        "prometheusID": "prometheus001"
    }
}]

修改主机hosts

Prometheus部署的主机需要修改hosts,以便能够通过域名能够访问到对于的Prometheus服务。

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