k8s安装promethus

Posted 2021-07-02 温茶又折花

记录安装prometheus + grafana

1.从github 下载prometheus

git clone https://github.com/coreos/kube-prometheus.git
cd kube-prometheus/manifests

2.修改grafana-service.yaml文件，使用nodepode方式访问grafana

vi grafana-service.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    app: grafana
  name: grafana
  namespace: monitoring
spec:
  type: NodePort   #新增
  ports:
  - name: http
    port: 3000
    targetPort: http
    nodePort: 30100  # 新增
  selector:
    app: grafana

3.修改prometheus-service.yaml, 使用nodepode方式访问

vi prometheus-service.yaml
apiVersion: v1
kind: Service
metadata:
  labels:
    prometheus: k8s
  name: prometheus-k8s
  namespace: monitoring
spec:
  type: NodePort  # 新增
  ports:
  - name: web
    port: 9090
    targetPort: web
    nodePort: 30200   # 新增
  selector:
    app: prometheus
    prometheus: k8s
  sessionAffinity: ClientIP

4.修改alertmanager-service.yaml, 改为nodeport

apiVersion: v1
kind: Service
metadata:
  labels:
    alertmanager: main
  name: alertmanager-main
  namespace: monitoring
spec:
  type: NodePort
  ports:
  - name: web
    port: 9093
    targetPort: web
    nodePort: 30300
  selector:
    alertmanager: main
    app: alertmanager
  sessionAffinity: ClientIP

5.部署

该命令多运行几次
kubectl apply -f manifests/

6.查看pod是否正常运行

kubectl get pod -n monitoring
如果有镜像加载失败，需要手动加载

7.手动加载镜像gcr.io-->registry.aliyuncs.com

docker pull quay-mirror.qiniu.com/prometheus/alertmanager:v0.18.0
docker tag quay-mirror.qiniu.com/prometheus/alertmanager:v0.18.0 quay.io/prometheus/alertmanager:v0.18.0

docker pull quay-mirror.qiniu.com/prometheus/node-exporter:v0.18.1
docker tag quay-mirror.qiniu.com/prometheus/node-exporter:v0.18.1 quay.io/prometheus/node-exporter:v0.18.1

docker pull quay-mirror.qiniu.com/coreos/k8s-prometheus-adapter-amd64:v0.5.0
docker tag quay-mirror.qiniu.com/coreos/k8s-prometheus-adapter-amd64:v0.5.0 quay.io/coreos/k8s-prometheus-adapter-amd64:v0.5.0

docker pull quay-mirror.qiniu.com/prometheus/prometheus:v2.11.0
docker tag quay-mirror.qiniu.com/prometheus/prometheus:v2.11.0 quay.io/prometheus/prometheus:v2.11.0

docker pull quay-mirror.qiniu.com/coreos/prometheus-operator:v0.34.0
docker tag quay-mirror.qiniu.com/coreos/prometheus-operator:v0.34.0 quay.io/coreos/prometheus-operator:v0.34.0

8.再次查看pod是否正常运行

kubectl get pod -n monitoring

kubectl get svc --all-namespaces

9.访问prometheus界面

http://192.168.188.130:30200/
sum by (pod_name)(rate(container_cpu_usage_seconds_total{image!="",pod_name!=""}[1m]))

10.访问grafana

http://192.168.188.130:30100/
第一次登陆会要求修改密码
admin/admin