k8s grafana

grafana install

dashboards

模板 https://grafana.com/grafana/dashboards/

node-exporter

https://grafana.com/grafana/dashboards/1860-node-exporter-full/

密码

grafana-cli

grafana-cli admin reset-admin-password pwd

修改数据库重置

update user set password = '59acf18b94d7eb0694c61e60ce44c110c7a683ac6a8f09580d626f90f4a242000746579358d77dd9e570e83fa24faa88a8a6'
,salt = 'F3FAxVm33R' 
,rands= 'AmtsbvblVi'
where login = 'admin';

admin admin登陆会要求修改密码

db

默认sqlite3转换成mysql

pip install sqlite3-to-mysql
❯ sqlite3mysql -f  /media/ssd/nfs/k8s/grafana/pv/grafana.db -d k8s_grafana -ugrafana -p -P 3305 -h localhost

….

2023-10-11 23:03:05 INFO Adding unique index to column “title, parent_uid” in table folder
2023-10-11 23:03:05 INFO Adding unique index to column “uid, org_id” in table folder
2023-10-11 23:03:05 INFO Adding index to column “parent_uid, org_id” in table folder

2023-10-11 23:03:05 INFO Done!

import 14518

/api/dashboards/import 接口报 500 Internal Server Error

msg=”Failed to save dashboard” error=”Error 1406 (22001): Data too long for column ‘data’ at row 1” 涉及2个表数据

ALTER TABLE dashboard MODIFY data MEDIUMTEXT;
ALTER TABLE dashboard_version MODIFY data MEDIUMTEXT;

select d.title ,d.id ,dv.`data`  from dashboard d,dashboard_version dv where d.id =dv.dashboard_id and d.gnet_id  ="14518";

Text 最大长度65535个字节(2^16-1

MediumText 最大长度 16777215 个字节(2^24-1

LongText 最大长度4294967295个字节 (2^32-1)

pkg/services/sqlstore/migrations/dashboard_mig.go

pkg/services/sqlstore/migrations/dashboard_version_mig.go

https://github.com/grafana/grafana/pull/35668/files/0bc461905f381d84a831ecace838f26476ccfd90

ALTER TABLE alert_configuration MODIFY alertmanager_configuration MEDIUMTEXT;

question

websocket

/api/live/ws → status 400

https://grafana.com/tutorials/run-grafana-behind-a-proxy/

upstream dashboard{
     server k8s01:443;
     server k8s02:443;
     server k8s03:443;
}

map $http_upgrade $connection_upgrade {
  default upgrade;
  '' close;
}

server {
       listen       443 ssl;
       server_name  grafana.ui.k8s.cn;

        ssl_certificate      conf.d/ssl/ui.k8s.cn.crt;
        ssl_certificate_key  conf.d/ssl/ui.k8s.cn.key;

        ssl_session_cache    shared:SSL:1m;
        ssl_session_timeout  5m;

        ssl_ciphers  HIGH:!aNULL:!MD5;
        ssl_prefer_server_ciphers  on;
  location / {
            proxy_set_header Host $http_host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
            proxy_pass https://dashboard;
        }
       location /api/live/ws {
        	proxy_http_version 1.1;
        	proxy_set_header Upgrade $http_upgrade;
        	proxy_set_header Connection "Upgrade";
        	proxy_set_header Host $http_host;
        	proxy_pass https://grafana.ui.k8s.cn;
        }
}

安装文档配置后

method=GET path=/api/live/ws status=-1

浏览器 101 Switching Protocols

traefik.http.routers.grafana.rule: Host(`grafana.ui.k8s.cn`)