Lens

Tips#

features/metrics#

  • Namespace lens-metrics
    • StatefulSet prometheus
      • prometheus
        • --storage.tsdb.retention.time=2d
        • --storage.tsdb.retention.size=5GB
      • ServiceAccount prometheus
      • Service prometheus
        • 80 -> 9090
        • prometheus.io/scrape: 'true'
      • ConfigMap prometheus-config
        • prometheus.yaml
      • ConfigMap prometheus-rules
        • alertmanager.rules.yaml
        • etcd3.rules.yaml
        • general.rules.yaml
        • kube-state-metrics.rules.yaml
        • kubelet.rules.yaml
        • kubernetes.rules.yaml
        • node.rules.yaml
        • prometheus.rules.yaml
    • ClusterRole - lens-prometheus
      • ServiceAccount prometheus
    • DaemonSet - node-exporter
      • Service 80 -> 9100
    • Deployment - kube-state-metrics
  • Using Custom Prometheus
# 可以使用 HELM 安装的 - 需要抓取时间小于 1 分钟
helm upgrade --set server.global.scrape_interval=30s prometheus stable/prometheus

kube-prometheus#

  • #180 - Documentation is incorrect for Prometheus troubleshooting
  • #656 - What are the requirements to make my prometheus deployment compatible with Lens?
  • 支持需要 relabel
    • 该说明有问题
  • 选择 helm 安装,指定 monitoring/kube-prometheus-prometheus:9090

bitnam/kube-prometheus values.yaml

# Lens
# ====
node-exporter:
serviceMonitor:
# interval: 10s
relabelings:
- action: replace
regex: (.*)
replacement: $1
sourceLabels:
- __meta_kubernetes_pod_node_name
targetLabel: kubernetes_node
kubelet:
serviceMonitor:
# interval: 15s
metricRelabelings:
- action: replace
sourceLabels:
- node
targetLabel: instance
# limit & request works
kube-state-metrics:
serviceMonitor:
honorLabels: true

features/user-mode#

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: lens-user
rules:
- verbs:
- list
apiGroups:
- ''
resources:
- namespaces
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: lens-user
subjects:
- kind: Group
apiGroup: rbac.authorization.k8s.io
name: 'system:authenticated'
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: lens-user