本节重点介绍 :
- config简介
- prometheus configmap编写
configmap
作用
- ConfigMap 是一种 API 对象，用来将非机密性的数据保存到键值对中
- 使用时， Pods 可以将其用作环境变量、命令行参数或者存储卷中的配置文件。
为何prometheus需要configmap
- prometheus的配置文件需要以configmap形式挂载
编写prometheus 的configmap
- 字段中具体含义再后面的章节中再一一解释
apiVersion: v1
kind: ConfigMap
metadata:
name: prometheus-config
namespace: kube-system
data:
prometheus.yml: |
global:
scrape_interval: 30s
evaluation_interval: 30s
external_labels:
cluster: "01"
scrape_configs:
- job_name: kube-etcd
kubernetes_sd_configs:
- role: endpoints
scheme: https
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
relabel_configs:
- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name]
action: keep
regex: kube-system;kube-etcd
tls_config:
ca_file: /etc/prometheus/secrets/etcd-certs/ca.crt
cert_file: /etc/prometheus/secrets/etcd-certs/healthcheck-client.crt
key_file: /etc/prometheus/secrets/etcd-certs/healthcheck-client.key
insecure_skip_verify: true
- job_name: 'kube-scheduler'
kubernetes_sd_configs:
- role: endpoints
scheme: https
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
insecure_skip_verify: true
relabel_configs:
- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name]
action: keep
regex: kube-system;kube-scheduler
- job_name: 'kube-controller-manager'
kubernetes_sd_configs:
- role: endpoints
scheme: https
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
insecure_skip_verify: true
relabel_configs:
- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name]
action: keep
regex: kube-system;kube-controller-manager
- job_name: 'kubernetes-apiservers'
kubernetes_sd_configs:
- role: endpoints
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
relabel_configs:
- source_labels: [__meta_kubernetes_namespace, __meta_kubernetes_service_name, __meta_kubernetes_endpoint_port_name]
action: keep
regex: default;kubernetes;https
- job_name: kube-state-metrics
metrics_path: /metrics
scheme: http
static_configs:
- targets:
- kube-state-metrics:8080
- job_name: kubernetes-nodes-kubelet
kubernetes_sd_configs:
- role: node
relabel_configs:
- action: labelmap
regex: __meta_kubernetes_node_label_(.+)
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
insecure_skip_verify: true
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
- job_name: kubernetes-nodes-cadvisor
metrics_path: /metrics
scheme: https
kubernetes_sd_configs:
- role: node
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
insecure_skip_verify: true
relabel_configs:
- action: replace
regex: (.+)
source_labels:
- __meta_kubernetes_node_label_kubernetes_io_hostname
target_label: node
- separator: ;
regex: __meta_kubernetes_node_label_(.+)
replacement: $1
action: labelmap
- separator: ;
regex: (.*)
target_label: __metrics_path__
replacement: /metrics/cadvisor
action: replace
- job_name: kubernetes-pods
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
insecure_skip_verify: true
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
kubernetes_sd_configs:
- role: pod
relabel_configs:
- action: keep
regex: true
source_labels:
- __meta_kubernetes_pod_annotation_prometheus_io_scrape
- action: replace
regex: (.+)
source_labels:
- __meta_kubernetes_pod_annotation_prometheus_io_path
target_label: __metrics_path__
- action: replace
regex: ([^:]+)(?::\d+)?;(\d+)
replacement: $1:$2
source_labels:
- __address__
- __meta_kubernetes_pod_annotation_prometheus_io_port
target_label: __address__
- action: labelmap
regex: __meta_kubernetes_pod_label_(.+)
- action: replace
source_labels:
- __meta_kubernetes_namespace
target_label: kubernetes_namespace
- action: replace
source_labels:
- __meta_kubernetes_pod_name
target_label: kubernetes_pod_name
- job_name: 'kubernetes-service-endpoints'
kubernetes_sd_configs:
- role: endpoints
relabel_configs:
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scrape]
action: keep
regex: true
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_scheme]
action: replace
target_label: __scheme__
regex: (https?)
- source_labels: [__meta_kubernetes_service_annotation_prometheus_io_path]
action: replace
target_label: __metrics_path__
regex: (.+)
- source_labels: [__address__, __meta_kubernetes_service_annotation_prometheus_io_port]
action: replace
target_label: __address__
regex: ([^:]+)(?::\d+)?;(\d+)
replacement: $1:$2
- action: labelmap
regex: __meta_kubernetes_service_label_(.+)
- source_labels: [__meta_kubernetes_namespace]
action: replace
target_label: kubernetes_namespace
- source_labels: [__meta_kubernetes_service_name]
action: replace
target_label: kubernetes_name
- source_labels: [__address__]
action: replace
target_label: instance
regex: (.+):(.+)
replacement: $1本节重点介绍 :
- config简介
- prometheus configmap编写