Prometheus Adapter

prometheus-adapter¶

Field	Description	Scheme
install	Allow to enable deploy Prometheus Adapter.	bool
image	The image to be used for the `prometheus-operator` deployment. The `prometheus-operator` makes the Prometheus configuration Kubernetes native, and manages and operates Prometheus and Alertmanager clusters. For more information, refer to https://github.com/prometheus-operator/prometheus-operator	string
resources	Resources defines resources requests and limits for single Pods.	v1.ResourceRequirements
securityContext	SecurityContext holds pod-level security attributes. Default for Kubernetes, `securityContext:{ runAsUser: 2000, fsGroup: 2000 }`.	**v1.SecurityContext
paused	Set paused to reconciliation.	bool
prometheusUrl	PrometheusURL used to connect to any tool with Prometheus compatible API. It will eventually contain query parameters to configure the connection	string
metricsRelistInterval	MetricsRelistInterval is the interval at which to update the cache of available metrics from Prometheus	string
tolerations	Tolerations allow the pods to schedule onto nodes with matching taints.	[]v1.Toleration
nodeSelector	NodeSelector defines which nodes the pods are scheduled on. Specified just as map[string]string. For example: \"type: compute\"	map[string]string
affinity	If specified, the pod's scheduling constraints	*v1.Affinity
annotations	Map of string keys and values stored with a resource that may be set by external tools to store and retrieve arbitrary metadata. Specified just as map[string]string. For example: "annotations-key: annotation-value"	map[string]string
labels	Map of string keys and values that can be used to organize and categorize (scope and select) objects. Specified just as map[string]string. For example: "label-key: label-value"	map[string]string
enableResourceMetrics	Enable adapter for `metrics.k8s.io`. By default - `false`	bool
enableCustomMetrics	Enable adapter for `custom.metrics.k8s.io`. By default - `true`	bool
customScaleMetricRulesSelector	CustomScaleMetricRulesSelector defines label selectors to select CustomScaleMetricRule resources across the cluster	[]*metav1.LabelSelector
APIService.resourceMetrics	Enable/disable creating APIServices for `metrics.k8s.io`	bool
APIService.customMetrics	Enable/disable creating APIServices for `custom.metrics.k8s.io`	bool
auth	Client credentials to connect to Prometheus or Victoriametrics endpoints. (Only basic authentication is supported)	map[string]string
auth.basicAuth	Allow to specify client auth configuration as secret reference	*v1.SecretKeySelector
auth.basicAuth.createSecret	Allow to create secret with auth credentials automatically during deploy	map[string]string
auth.basicAuth.createSecret.username	Allow to specify client username	string
auth.basicAuth.createSecret.password	Allow to specify client password	string
priorityClassName	PriorityClassName assigned to the Pods to prevent them from evicting.	string

Example (automatically created secrets for auth):

prometheusAdapter:
  install: true
  image: "k8s-prometheus-adapter-amd64:v0.6.0"
  securityContext:
    runAsUser: 2000
    fsGroup: 2000
  resources:
    limits:
      cpu: 200m
      memory: 200Mi
    requests:
      cpu: 100m
      memory: 100Mi
  nodeSelector:
    node-role.kubernetes.io/worker: worker
  labels:
    label.key: label-value
  annotations:
    annotation.key: annotation-value
  priorityClassName: priority-class
  metricsRelistInterval: "1m"
  prometheusUrl: "http://prometheus-operated.monitoring.svc:9090"
  APIService:
    resourceMetrics: true
    customMetrics: true
  enableResourceMetrics: true
  enableCustomMetrics: true
  customScaleMetricRulesSelector:
    - matchExpressions:
        - key: app.kubernetes.io/component
          operator: In
          values: [ "monitoring" ]
  auth:
    createSecret:
      basicAuth:
        username: prometheus
        password: prometheus
  operator:
    ...see example by link...

Example (precreated secrets for auth):

prometheusAdapter:
  install: true
  image: "k8s-prometheus-adapter-amd64:v0.6.0"
  securityContext:
    runAsUser: 2000
    fsGroup: 2000
  resources:
    limits:
      cpu: 200m
      memory: 200Mi
    requests:
      cpu: 100m
      memory: 100Mi
  nodeSelector:
    node-role.kubernetes.io/worker: worker
  labels:
    label.key: label-value
  annotations:
    annotation.key: annotation-value
  metricsRelistInterval: "1m"
  prometheusUrl: "http://prometheus-operated.monitoring.svc:9090"
  APIService:
    resourceMetrics: true
    customMetrics: true
  enableResourceMetrics: true
  enableCustomMetrics: true
  customScaleMetricRulesSelector:
    - matchExpressions:
        - key: app.kubernetes.io/component
          operator: In
          values: [ "monitoring" ]
  auth:
    basicAuth:
      username:
        name: secret
        key: username
      password:
        name: secret
        key: password
  operator:
    ...see example by link...

prometheus-adapter-operator¶

Field	Description	Scheme
image	A docker image to use for prometheus-adapter-operator deployment	string
resources	Resources defines resources requests and limits for single Pods.	v1.ResourceRequirements
securityContext	SecurityContext holds pod-level security attributes. Default for Kubernetes, `securityContext:{ runAsUser: 2000, fsGroup: 2000 }`.	*v1.PodSecurityContext
nodeSelector	NodeSelector defines which nodes the pods are scheduled on. Specified just as map[string]string. For example: \"type: compute\"	map[string]string
affinity	If specified, the pod's scheduling constraints	*v1.Affinity
annotations	Map of string keys and values stored with a resource that may be set by external tools to store and retrieve arbitrary metadata. Specified just as map[string]string. For example: "annotations-key: annotation-value"	map[string]string
labels	Map of string keys and values that can be used to organize and categorize (scope and select) objects. Specified just as map[string]string. For example: "label-key: label-value"	map[string]string
priorityClassName	PriorityClassName assigned to the Pods to prevent them from evicting.	string
tlsEnabled	TLS configuration is enabled/disabled. By default, it is disabled.	boolean
tlsConfig	Allow to specify client TLS configuration.	*TLSConfig

prometheusAdapter:
  operator:
    image: "product/prod.platform.system.monitoring_k8s-scaling_prometheus-adapter-operator:latest"
    securityContext:
      runAsUser: 2000
      fsGroup: 2000
    resources:
      limits:
        cpu: 200m
        memory: 200Mi
      requests:
        cpu: 100m
        memory: 100Mi
    nodeSelector:
      node-role.kubernetes.io/worker: worker
    labels:
      label.key: label-value
    annotations:
      annotation.key: annotation-value
    priorityClassName: priority-class
    tlsEnabled: true
    tlsConfig:
      generateCerts:
        enabled: true
        duration: 365
        renewBefore: 15
        clusterIssuerName: "dev-cluster-issuer"
        secretName: "prometheus-adapter-client-tls-secret"

prometheus-adapter-operator-tls-config¶

TLSConfig holds SSL/TLS configuration attributes. The parameters are required if SSL/TLS connection is required between Kubernetes cluster and prometheus-adapter-operator. This section is applicable only if tlsEnabled is set to true.

Parameter	Type	Mandatory	Default value	Description
`caSecret`	*v1.SecretKeySelector	no	`-`	Secret containing the CA certificate to use for the targets.
`certSecret`	*v1.SecretKeySelector	no	`-`	Secret containing the client certificate file for the targets.
`keySecret`	*v1.SecretKeySelector	no	`-`	Secret containing the client key file for the targets.
`existingSecret`	string	no	`-`	Name of the pre-existing secret that contains TLS configuration for prometheus-adapter. If specified, `generateCerts.enabled` must be set to `false`. The `existingSecret` is expected to contain CA certificate, TLS key and TLS certificate in `ca.crt`, `tls.key` and `tls.crt` fields respectively. Use either `existingSecret` or the combination of `caSecret`, `certSecret` and `keySecret`. Do not use it together.
`generateCerts.enabled`	boolean	no	`true`	Generation of certificate is enabled by default. If `tlsConfig.existingSecret` or the combination of `tlsConfig.caSecret`, `tlsConfig.certSecret` and `tlsConfig.keySecret` is specified, `tlsConfig.generateCerts` section will be skipped. `cert-manager` will generate certificate with the name configured using `generateCerts.secretName`, if it doesn't exist already.
`generateCerts.clusterIssuerName`	string	no	`-`	Cluster issuer name for generated certificate. This is a mandatory field if `generateCerts.enabled` is set to `true`.
`generateCerts.duration`	integer	no	`365`	Duration in days, until which issued certificate will be valid.
`generateCerts.renewBefore`	integer	no	`15`	Number of days before which certificate must be renewed.
`generateCerts.secretName`	string	no	`prometheus-adapter-client-tls-secret`	Name of the new secret that needs to be created for storing TLS configuration of prometheus-adapter.
`createSecret`	object	no	`-`	New secret with the name `tlsConfig.createSecret.secretName` will be created using already known certificate content. If `tlsConfig.existingSecret` or the combination of `tlsConfig.caSecret`, `tlsConfig.certSecret` and `tlsConfig.keySecret` is specified, `tlsConfig.createSecret` section will be skipped.
`createSecret.ca`	string	no	`-`	Already known CA certificate will be added to newly created secret.
`createSecret.key`	string	no	`-`	Already known TLS key will be added to newly created secret.
`createSecret.cert`	string	no	`-`	Already known TLS certificate will be added to newly created secret.
`createSecret.secretName`	string	no	`prometheus-adapter-client-tls-secret`	Already known TLS certificate will be added to newly created secret.