监控docker2

监控docker2

cadvisor是谷歌开发的容器监控工具，在host中运行cadvisor容器

[root@localhost ~]# docker run -v /:/rootfs:ro -v /var/run/:/var/run:ro -v /sys:/sys:ro -v /var/lib/docker:/var/lib/docker -P -d --name cadvisor3 google/cadvisor
5e7ad001b3916a9bfd7c2c2ebf235a4cb69efe71426692303124bc7969fe7478

通过192.168.172.129:32768

 点击docker containers 连接

显示容器列表

点击某个容器，进入该容器的监控页面

cadvisor的主要功能，总结起来有两点：

1：展示host和容器两个层次的监控数据

2：展示历史数据变化

 环境说明

我们将通过prometheus 监控两台docker host

[root@localhost ~]# docker run -d -p 9100:9100 
> -v "/proc:/host/proc" 
> -v "/sys:/host/sys" 
> -v "/:/rootfs" 
> --net=host 
> prom/node-exporter 
> --path.procfs /host/proc 
> --path.sysfs /host/sys 
> --collector.filesystem.ignored-mount-points "^/(sys|proc|dev|host|etc|rootfs/var/lib/docker/containers|rootfs/var/lib/docker/overlay2|rootfs/run/docker/netns|rootfs/var/lib/docker/devicemapper|rootfs/var/lib/docker/aufs)($$|/)"
Unable to find image 'prom/node-exporter:latest' locally
latest: Pulling from prom/node-exporter
86fa074c6765: Pull complete 
ed1cd1c6cd7a: Pull complete 
ff1bb132ce7b: Pull complete 
Digest: sha256:cf66a6bbd573fd819ea09c72e21b528e9252d58d01ae13564a29749de1e48e0f
Status: Downloaded newer image for prom/node-exporter:latest
WARNING: Published ports are discarded when using host network mode
16b8ec370c424b6566692a5fde1fc784c2fcd2e05acf2bab750fb98478e5676c
[root@localhost ~]# 

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 运行prometheus server

docker run -d -P -v /root/prometheus.yml:/etc/prometheus/prometheus.yml --name prometheus --net=host prom/prometheus

 

 cat prometheus.yml

                                         static_configs:
                                             - targets: ['localhost:9090','localhost:32768','localhost:9100','192.168.172.128:32768','192.168.172.129:9100']

运行grafana

[root@localhost ~]# docker run -d -i -P -e "GF_SERVER_ROOT_URL=http://grafana.server.name" 
> -e "GF_SECURITY_ADMIN_PASSWORD=secret" 
> --net=host grafana/grafana
Unable to find image 'grafana/grafana:latest' locally
latest: Pulling from grafana/grafana
cbdbe7a5bc2a: Pull complete 
22c9cde4b77a: Pull complete 
02653346ebaa: Pull complete 
40bd12673834: Pull complete 
947c86dbd478: Pull complete 
36508129e563: Pull complete 
Digest: sha256:a24849c210ebea3ec754594302faa49d5a21460cdc14ab30dd38d8938a865f09
Status: Downloaded newer image for grafana/grafana:latest
bdb83f0eda52cf91b74e41faa4f62686a14890287060b91ea09ec8f63271e916
[root@localhost ~]# 

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