部署Prometheus+Grafana监控Docker
（1）实验环境
两台主机都需要桥接网卡！
| 系统 | 主机名 | ip | 安装软件 | 扮演角色 |
| Centos7.4 | Prometheus | 192.168.100.210 | prometheus+Grafana+exporter+cAdvisor+influxdb+docker | 监控端 |
| Centos7.4 | Docker | 192.168.100.208 | exporter+docker+cAdvisor | 被监控端 |
（2）实验步骤
1、先做基础配置
#监控端配置 [root@Centos7 ~]# hostnamectl set-hostname prometheus [root@Centos7 ~]# su [root@prometheus ~]# systemctl stop firewalld [root@prometheus ~]# setenforce 0 setenforce: SELinux is disabled [root@prometheus ~]# mount /dev/cdrom /mnt/ [root@prometheus ~]# yum -y install ntpdate [root@prometheus ~]# ntpdate ntp1.aliyun.com 5 Aug 09:58:03 ntpdate[1142]: step time server 120.25.115.20 offset -28802.931261 sec
#被监控端配置 [root@Centos7 ~]# hostnamectl set-hostname docker [root@Centos7 ~]# su [root@docker ~]# systemctl stop firewalld [root@docker ~]# setenforce 0 setenforce: SELinux is disabled [root@docker ~]# mount /dev/cdrom /mnt/ [root@docker ~]# yum -y install ntpdate [root@docker ~]# ntpdate ntp1.aliyun.com 5 Aug 09:58:23 ntpdate[1527]: step time server 120.25.115.20 offset -28801.336708 sec
2、在监控端安装服务
安装prometheus+Grafana+exporter+cAdvisor+influxdb
#以下操作全部都在监控端执行 #上传软件包 [root@prometheus ~]# ll 总用量 58216 -rw-------. 1 root root 1264 1月 12 2021 anaconda-ks.cfg -rw-r--r-- 1 root root 59608515 8月 5 09:59 prometheus-2.16.0.linux-amd64.tar.gz [root@prometheus ~]# tar xf prometheus-2.16.0.linux-amd64.tar.gz [root@prometheus ~]# mv prometheus-2.16.0.linux-amd64 /usr/local/prometheus [root@prometheus ~]# cd /usr/local/prometheus/ #Promtheus作为一个时间序列数据库，其采集的数据会以文件的形似存储在本地中，默认的存储路径为data/，因此我们需要先手动创建该目录： [root@prometheus prometheus]# mkdir data [root@prometheus prometheus]# ll 总用量 140984 drwxr-xr-x 2 3434 3434 38 2月 14 2020 console_libraries drwxr-xr-x 2 3434 3434 173 2月 14 2020 consoles drwxr-xr-x 3 root root 51 8月 5 10:00 data -rw-r--r-- 1 3434 3434 11357 2月 14 2020 LICENSE -rw-r--r-- 1 3434 3434 3184 2月 14 2020 NOTICE -rwxr-xr-x 1 3434 3434 82329106 2月 14 2020 prometheus -rw-r--r-- 1 3434 3434 926 2月 14 2020 prometheus.yml -rwxr-xr-x 1 3434 3434 48417809 2月 14 2020 promtool -rwxr-xr-x 1 3434 3434 13595766 2月 14 2020 tsdb [root@prometheus prometheus]# useradd -s /sbin/nologin prometheus [root@prometheus prometheus]# chown -R prometheus:prometheus /usr/local/prometheus/ [root@prometheus prometheus]# cd /usr/lib/systemd/system [root@prometheus system]# vim prometheus.service [Unit] Description=prometheus After=network.target [Service] User=prometheus Group=prometheus WorkingDirectory=/usr/local/prometheus ExecStart=/usr/local/prometheus/prometheus [Install] WantedBy=multi-user.target #保存退出 [root@prometheus system]# systemctl start prometheus #启动 [root@prometheus system]# netstat -napt | grep 9090 #查看监听端口 tcp 0 0 127.0.0.1:56274 127.0.0.1:9090 ESTABLISHED 1316/prometheus tcp6 0 0 :::9090 :::* LISTEN 1316/prometheus tcp6 0 0 127.0.0.1:9090 127.0.0.1:56274 ESTABLISHED 1316/prometheus
使用浏览器进行访问http://192.168.100.210:9090
#安装influxdb数据库 #上传软件包进行安装 [root@prometheus system]# cd [root@prometheus ~]# ll 总用量 108032 -rw-------. 1 root root 1264 1月 12 2021 anaconda-ks.cfg -rw-r--r-- 1 root root 51010897 8月 5 10:08 influxdb-1.7.8.x86_64.rpm -rw-r--r-- 1 root root 59608515 8月 5 09:59 prometheus-2.16.0.linux-amd64.tar.gz [root@prometheus ~]# yum -y install influxdb-1.7.8.x86_64.rpm [root@prometheus ~]# cp /etc/influxdb/influxdb.conf /etc/influxdb/influxdb.conf.default [root@prometheus ~]# systemctl start influxdb [root@prometheus ~]# systemctl enable influxdb [root@prometheus ~]# influx #进入数据库 Connected to http://localhost:8086 version 1.7.8 InfluxDB shell version: 1.7.8 > show databases; name: databases name ---- _internal > create database prometheus ; #创建prometheus库 > show databases; #确认已经创建 name: databases name ---- _internal prometheus > exit
#配置普罗米修斯集成influxdb数据库 [root@prometheus ~]# cd /usr/local/prometheus/ [root@prometheus prometheus]# cp prometheus.yml prometheus.yml.defalut [root@prometheus prometheus]# vim prometheus.yml #末尾直接添加 remote_write: - url: "http://localhost:8086/api/v1/prom/write?db=prometheus" remote_read: - url: "http://localhost:8086/api/v1/prom/read?db=prometheus" #保存退出 [root@prometheus prometheus]# systemctl restart prometheus [root@prometheus prometheus]# systemctl status prometheus #检测prometheus数据是否到了数据库中 [root@prometheus prometheus]# cd [root@prometheus ~]# influx Connected to http://localhost:8086 version 1.7.8 InfluxDB shell version: 1.7.8 > use prometheus; #进入prometheus库 Using database prometheus > show MEASUREMENTS; #查看当前库下的所有数据，有数据就可以了 > exit
#安装Grafana [root@prometheus ~]# yum -y install fontconfig freetype* urw-fonts #上传软件包 [root@prometheus ~]# ll 总用量 163076 -rw-------. 1 root root 1264 1月 12 2021 anaconda-ks.cfg -rw-r--r-- 1 root root 56363500 6月 17 16:40 grafana-6.1.4-1.x86_64.rpm -rw-r--r-- 1 root root 51010897 8月 5 10:08 influxdb-1.7.8.x86_64.rpm -rw-r--r-- 1 root root 59608515 8月 5 09:59 prometheus-2.16.0.linux-amd64.tar.gz [root@prometheus ~]# yum -y install grafana-6.1.4-1.x86_64.rpm [root@prometheus ~]# systemctl start grafana-server [root@prometheus ~]# netstat -anpt | grep 3000 tcp6 0 0 :::3000 :::* LISTEN 1509/grafana-server
使用浏览器进行测试
#安装exporter #上传软件包 [root@prometheus ~]# ll 总用量 170972 -rw-------. 1 root root 1264 1月 12 2021 anaconda-ks.cfg -rw-r--r-- 1 root root 56363500 6月 17 16:40 grafana-6.1.4-1.x86_64.rpm -rw-r--r-- 1 root root 51010897 8月 5 10:08 influxdb-1.7.8.x86_64.rpm -rw-r--r-- 1 root root 8083296 7月 10 16:51 node_exporter-0.18.1.linux-amd64.tar.gz -rw-r--r-- 1 root root 59608515 8月 5 09:59 prometheus-2.16.0.linux-amd64.tar.gz [root@prometheus ~]# tar xf node_exporter-0.18.1.linux-amd64.tar.gz [root@prometheus ~]# mv node_exporter-0.18.1.linux-amd64 /usr/local/exporter [root@prometheus ~]# cd /usr/lib/systemd/system [root@prometheus system]# vim node_exporter.service [Unit] Description=node_exporter After=network.target [Service] User=prometheus Group=prometheus ExecStart=/usr/local/exporter/node_exporter --web.listen-address=:20001 --collector.systemd --collector.systemd.unit-whitelist=(sshd|nginx).service --collector.processes --collector.tcpstat [Install] WantedBy=multi-user.target #保存退出 [root@prometheus system]# systemctl daemon-reload [root@prometheus system]# systemctl start node_exporter [root@prometheus system]# systemctl status node_exporter [root@prometheus system]# netstat -anpt | grep 20001 tcp6 0 0 :::20001 :::* LISTEN 1553/node_exporter [root@prometheus system]# systemctl enable node_exporter
使用浏览器进行访问
#安装docker [root@prometheus system]# cd [root@prometheus ~]# yum install -y yum-utils device-mapper-persistent-data lvm2 [root@prometheus ~]# ll 总用量 170976 -rw-------. 1 root root 1264 1月 12 2021 anaconda-ks.cfg drwxr-xr-x 3 root root 4096 8月 5 10:38 docker -rw-r--r-- 1 root root 56363500 6月 17 16:40 grafana-6.1.4-1.x86_64.rpm -rw-r--r-- 1 root root 51010897 8月 5 10:08 influxdb-1.7.8.x86_64.rpm -rw-r--r-- 1 root root 8083296 7月 10 16:51 node_exporter-0.18.1.linux-amd64.tar.gz -rw-r--r-- 1 root root 59608515 8月 5 09:59 prometheus-2.16.0.linux-amd64.tar.gz [root@prometheus ~]# vim /etc/yum.repos.d/centos.repo [aaa] name=aaa baseurl=file:///mnt enabled=1 gpgcheck=0 [docker] name=docker baseurl=file:///root/docker enabled=1 gpgcheck=0 #保存退出 [root@prometheus ~]# yum -y install docker-ce [root@prometheus ~]# mkdir -p /etc/docker [root@prometheus ~]# vim /etc/docker/daemon.json { "registry-mirrors": ["https://w4uieobw.mirror.aliyuncs.com"] } #保存退出 [root@prometheus ~]# systemctl start docker [root@prometheus ~]# systemctl status docker
#使用docker下载cAdvisor的镜像 [root@prometheus ~]# docker pull google/cadvisor #开启容器，映射端口18104 [root@prometheus ~]# docker run \ --volume=/:/rootfs:ro \ --volume=/var/run:/var/run:rw \ --volume=/sys:/sys:ro \ --volume=/var/lib/docker/:/var/lib/docker:ro \ --volume=/dev/disk/:/dev/disk:ro \ --publish=18104:8080\ --detach=true \ --name=cadvisor \ google/cadvisor:latest #查看容器与镜像 [root@prometheus ~]# docker images REPOSITORY TAG IMAGE ID CREATED SIZE google/cadvisor latest eb1210707573 2 years ago 69.6MB [root@prometheus ~]# docker ps #成功启动容器 CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 1aab729a1d2d google/cadvisor:latest "/usr/bin/cadvisor -…" 3 minutes ago Up 3 minutes 0.0.0.0:18104->8080/tcp cadvisor
使用浏览器进行访问
访问http://192.168.100.210:18104/containers/进入cadvisor的web界面
访问http://192.168.100.210:18104/metrics可以看到cadvisor给prometheus暴露出来的信息
