简介
单纯记录
安装mertics-server
wget https://github.com/kubernetes-sigs/metrics-server/releases/latest/download/components.yaml
kubectl apply -f components.yaml
安装kube-state-metrics
yaml在
https://github.com/kubernetes/kube-state-metrics/tree/master/examples/standard
apply 这里面所有的yaml
创建service account
为了让prometheus有权限去监控kubelet，你需要让prometheus有一个有足够权限的service account
创建serviceaccount
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
app: prometheus
name: prometheus-k8s
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: prometheus-k8s
subjects:
- kind: ServiceAccount
name: prometheus-k8s
namespace: app
创建clusterrole
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
labels:
app: prometheus
name: prometheus-k8s
rules:
- apiGroups:
- ""
resources:
- nodes
- nodes/proxy
- nodes/metrics
- services
- endpoints
- pods
- ingresses
- configmaps
verbs:
- get
- list
- watch
- apiGroups:
- "extensions"
- "networking.k8s.io"
resources:
- ingresses/status
- ingresses
verbs:
- get
- list
- watch
- nonResourceURLs:
- /metrics
verbs:
- get
创建clusterrolebind
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
labels:
app: prometheus
name: prometheus-k8s
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: prometheus-k8s
subjects:
- kind: ServiceAccount
name: prometheus-k8s
namespace: app
接着让prometheus 使用这个service account
spec:
serviceAccountName: prometheus-k8s
配置prometheus
创建下面两个job
- job_name: 'kube-state-metrics'
static_configs:
- targets: ['kube-state-metrics.kube-system.svc.cluster.local:8080']
metric_relabel_configs:
- target_label: cluster
replacement: rpi-k3s
- job_name: 'cadvisor'
scheme: https
tls_config:
ca_file: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
bearer_token_file: /var/run/secrets/kubernetes.io/serviceaccount/token
kubernetes_sd_configs:
- role: node
relabel_configs:
- action: labelmap
regex: __meta_kubernetes_node_label_(.+)
- target_label: __address__
replacement: kubernetes.default.svc:443
- source_labels: [__meta_kubernetes_node_name]
regex: (.+)
target_label: __metrics_path__
replacement: /api/v1/nodes/${1}/proxy/metrics/cadvisor
如果没有特殊情况，所有的指标应该都是可以读取到的
之后就可以配置grafana了
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