标签归档：docker监控

Docker容器监控系统 cAdvisor+InfluxDB+Grafana


2018年12月19日 14:54:00   2,043 次浏览
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cAdvisor：Google开源的工具，用于监控Docker主机和容器系统资源，通过图形页面实时显示数据，但不存储;它通过宿主机/proc、/sys、/var/lib/docker等目录下文件获取宿主机和容器运行信息

InfluxDB：是一个分布式的时间序列数据库，用来存储cAdvisor收集的系统资源数据。

Grafana：可视化展示平台，可做仪表盘，并图表页面操作很方便，数据源支持zabbix、Graphite、InfluxDB、OpenTSDB、Elasticsearch等

它们之间关系：

cAdvisor容器数据采集—–> InfluxDB容器数据存储—–>Grafana可视化展示

部署InfluxDB

[root@docker-master ~]# docker run -itd  -p8083:8083  --name influxdb  tutum/influxdb
Unable to find image 'tutum/influxdb:latest' locally
latest: Pulling from tutum/influxdb
a3ed95caeb02: Pull complete
23efb549476f: Pull complete
aa2f8df21433: Pull complete
ef072d3c9b41: Pull complete
c9f371853f28: Pull complete
a248b0871c3c: Pull complete
749db6d368d0: Pull complete
db2492acfcc3: Pull complete
b7e7d2e12d53: Pull complete
4272a53eef10: Pull complete
9b2fefdb5321: Pull complete
Digest: sha256:2772d80e80284b801c6ef255f7e185dd5290757f0f031d77762390dd4df2a9a3
Status: Downloaded newer image for tutum/influxdb:latest
docker: Error response from daemon: mkdir /var/lib/docker/overlay/6d0d06de343d70cdd581480780933d4c05904bce9cf381efc1ac630f28acd083-init/merged/dev/shm: invalid argument.

在docker run的时候报了一个错， mkdir /var/lib/docker/overlay/6d0d06de343d70cdd581480780933d4c05904bce9cf381efc1ac630f28acd083-init/merged/dev/shm: invalid argument

解决方法：

[root@docker-master ~]# vim /etc/docker/daemon.json
{
"storage-driver": "devicemapper"
}


[root@docker-master ~]# docker run -idt -p 8083:8083 --name influxdb tutum/influxdb
Unable to find image 'tutum/influxdb:latest' locally
latest: Pulling from tutum/influxdb
a3ed95caeb02: Pull complete
23efb549476f: Pull complete
aa2f8df21433: Pull complete
ef072d3c9b41: Pull complete
c9f371853f28: Pull complete
a248b0871c3c: Pull complete
749db6d368d0: Pull complete
db2492acfcc3: Pull complete
b7e7d2e12d53: Pull complete
4272a53eef10: Pull complete
9b2fefdb5321: Pull complete
Digest: sha256:2772d80e80284b801c6ef255f7e185dd5290757f0f031d77762390dd4df2a9a3

创建数据库用来存放cadvisor采集的数据，再创建数据库用户供grafana连接

create database "cadvisor"

查看数据库可以发现数据库已经创建成功了。

# 创建用户

create user "cadvisor" with password 'cadvisor'

OK，数据库用户也已经创建成功。

show users

 

部署cAdvisor

docker run -d \
--volume=/:/rootfs:ro \
--volume=/var/run:/var/run:rw \
--volume=/sys:/sys:ro \
--volume=/var/lib/docker/:/var/lib/docker:ro \
--link influxdb:influxdb \
-p 8081:8080 \
--name=cadvisor \
google/cadvisor:latest \
-storage_driver=influxdb \
-storage_driver_db=cadvisor \
-storage_driver_host=influxdb:8086



Unable to find image 'google/cadvisor:latest' locally
latest: Pulling from google/cadvisor
ab7e51e37a18: Pull complete
a2dc2f1bce51: Pull complete
3b017de60d4f: Pull complete
Digest: sha256:9e347affc725efd3bfe95aa69362cf833aa810f84e6cb9eed1cb65c35216632a
Status: Downloaded newer image for google/cadvisor:latest
c4b2aa505f02e01f61a704dfeac9574ca9d36897896bda9be5c8d688d9ed441f

部署Granfana

docker run -d \
-p 3000:3000 \
-e INFLUXDB_HOST=localhost \
-e INFLUXDB_PORT=8086 \
-e INFLUXDB_NAME=cadvisor \
-e INFLUXDB_USER=cadvisor \
-e INFLUXDB_PASS=cadvisor \
--link influxdb:influxsrv \
--name grafana \
grafana/grafana



Unable to find image 'grafana/grafana:latest' locally
latest: Pulling from grafana/grafana
a5a6f2f73cd8: Pull complete
08e6195c0f29: Pull complete
b7bd3a2a524c: Pull complete
d3421658103b: Pull complete
cd7c84229877: Pull complete
49917e11f039: Pull complete
Digest: sha256:b9a31857e86e9cf43552605bd7f3c990c123f8792ab6bea8f499db1a1bdb7d53
Status: Downloaded newer image for grafana/grafana:latest
65e7390c90d8595495a776a66a03df77e474a4fa69d9d248f71236c5b62a580b

访问http://IP:3000 默认用户：admin 密码：admin

添加数据源Add Type里面选择InfluxDB ，最后选择Save&Test 保存测试。

URL填写：http://influxdb:8086  数据库用户及密码填写：cadvisor

在grafana上绘制图表即可展现相关数据