Kubernetes之利用prometheus监控K8S集群
Prometheus/prometheus# ls node-directory-size-metrics/daemonset.yaml
Prometheus/prometheus# ls kube-state-metrics/
deployment.yamlservice.yaml
Prometheus/prometheus# ls node-exporter/
exporter-daemonset.yamlexporter-service.yaml
Prometheus/prometheus#
#其中两个用的是daemonset
Prometheus/prometheus# kubectl create -f node-exporter/ -f kube-state-metrics/ -f node-directory-size-metrics/
daemonset "prometheus-node-exporter" created
service "prometheus-node-exporter" created
deployment "kube-state-metrics" created
service "kube-state-metrics" created
daemonset "node-directory-size-metrics" created
Prometheus/prometheus#
Prometheus/prometheus# kubectl get deploy,pod,svc -n monitoring
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
deploy/grafana-core 1 1 1 1 26m
deploy/kube-state-metrics 2 2 2 2 1m
deploy/prometheus-core 1 1 1 1 11m
NAME READY STATUS RESTARTS AGE
po/grafana-core-9c7f66868-wm68j 1/1 Running 0 26m
po/kube-state-metrics-694fdcf55f-bqcp8 1/1 Running 0 1m
po/kube-state-metrics-694fdcf55f-nnqqd 1/1 Running 0 1m
po/node-directory-size-metrics-n9wx7 2/2 Running 0 1m
po/node-directory-size-metrics-ppscw 2/2 Running 0 1m
po/prometheus-core-6dc6777c5b-5nc7j 1/1 Running 0 11m
po/prometheus-node-exporter-kchmb 1/1 Running 0 1m
po/prometheus-node-exporter-lks5m 1/1 Running 0 1m
NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE
svc/grafana NodePort 10.254.231.25 3000:30161/TCP 26m
svc/kube-state-metrics ClusterIP 10.254.156.51 8080/TCP 1m
svc/prometheus NodePort 10.254.239.90 9090:37318/TCP 10m
svc/prometheus-node-exporter ClusterIP None 9100/TCP 1m
Prometheus/prometheus#
--------
Prometheus/prometheus# kubectl get pod -o wide -n monitoring
NAME READY STATUS RESTARTS AGE IP NODE
prometheus-node-exporter-kchmb 1/1 Running 0 4m 10.3.1.16 10.3.1.16
prometheus-node-exporter-lks5m 1/1 Running 0 4m 10.3.1.17 10.3.1.17
#这两个是exporter，用的是daemonset 分别在这两个node上运行了。这样就可以采集到所有数据了。
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