Prometheus Operator Concepts: Difference between revisions
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=Overview= | =Overview= | ||
The Operator decouples the deployment of Prometheus instances from the configuration of which [[Prometheus_Concepts#Target|targets]] they are monitoring. The Operator defines two custom resources: [[#Prometheus|Prometheus]] and [[#ServiceMonitor|ServiceMonitor]]. | The Operator decouples the deployment of Prometheus instances from the configuration of which [[Prometheus_Concepts#Target|targets]] they are monitoring. The Operator defines two custom resources: [[#Prometheus|Prometheus]] and [[#ServiceMonitor|ServiceMonitor]]. | ||
[[File: PrometheusOperator.png]] | |||
=Custom Resources= | =Custom Resources= | ||
Revision as of 22:29, 14 October 2020
Internal
Overview
The Operator decouples the deployment of Prometheus instances from the configuration of which targets they are monitoring. The Operator defines two custom resources: Prometheus and ServiceMonitor.
Custom Resources
Prometheus Resource
The Prometheus resource declares a "serviceMonitorSelector":
apiVersion: monitoring.coreos.com/v1
kind: Prometheus
...
spec:
serviceMonitorSelector:
matchLabels:
release: prometheus
ServiceMonitor Resource
A ServiceMonitor is a custom resource
The labels are important, they must match Prometheus serviceMonitorSelector.
The current service monitor list can be obtained with:
kubectl -n <namespace> get servicemonitors