Grafana 是一款漂亮的数据展示工具，是纯 Javascript 开发的前端工具，它可以将后端多种数据库中的数据展示为折线图、柱状图、饼图、表盘等多种图形。

1.helm部署grafana

[root@k8s-node1 prometheus-grafana]# helm install stable/grafana --generate-name
NAME: grafana-1577432108
LAST DEPLOYED: Fri Dec 27 15:35:11 2019
NAMESPACE: default
STATUS: deployed
REVISION: 1
NOTES:
1. Get your 'admin' user password by running:

   kubectl get secret --namespace default grafana-1577432108 -o jsonpath="{.data.admin-password}" | base64 --decode ; echo

2. The Grafana server can be accessed via port 80 on the following DNS name from within your cluster:

   grafana-1577432108.default.svc.cluster.local

   Get the Grafana URL to visit by running these commands in the same shell:

     export POD_NAME=$(kubectl get pods --namespace default -l "app=grafana,release=grafana-1577432108" -o jsonpath="{.items[0].metadata.name}")
     kubectl --namespace default port-forward $POD_NAME 3000

3. Login with the password from step 1 and the username: admin
#################################################################################
######   WARNING: Persistence is disabled!!! You will lose your data when   #####
######            the Grafana pod is terminated.                            #####
#################################################################################

注意这条:

1. Get your 'admin' user password by running:

   kubectl get secret --namespace default grafana-1577432108 -o jsonpath="{.data.admin-password}" | base64 --decode ; echo

服务起来了

[root@k8s-node1 ~]# kubectl get svc,pod |grep grafana

service/grafana-1577432108                         ClusterIP   10.254.172.86            80/TCP          132m
pod/grafana-1577432108-65b987fdc6-dlhpb                         1/1     Running   1          132m

2.配置web访问

配置Ingress文件,读取执行,然后做host解析即可通过grafana-server访问web.

[root@k8s-node1 prometheus-grafana]# cat grafana-server-ingress.yaml 
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
  name: grafana-server
  namespace: default
spec:
  rules:
  - host: grafana-server
    http:
      paths:
      - path: /
        backend:
          serviceName: grafana-1577432108
          servicePort: 80

3.登录

看前面第1部的注意,登录密码通过那个提示来获取.

[root@k8s-node1 prometheus-grafana]# kubectl get secret --namespace default grafana-1577432108 -o jsonpath="{.data.admin-password}" | base64 --decode ; echo
sLJq2G4tBSiJcEHSobRoRiDRbCNXxT5qASQJkzF6

用户名是:admin
密码是:sLJq2G4tBSiJcEHSobRoRiDRbCNXxT5qASQJkzF6

登录成功,图示见下:

4.添加数据源

添加prometheus源

http url是prometheus service的地址

[root@k8s-node1 prometheus-grafana]# kubectl get svc |grep server
prometheus-1577263826-server               ClusterIP   10.254.132.104           80/TCP          47h

保存配置.再点击dashboard.

再import,就可以看到图形界面了

5.选一个自己喜欢的想用的个性参数更多的界面

去grafana网站下载模板json文件导入即可.

监控节点模板

监控pod容器模板1