概述

下面介绍如何使用docker安装Prometheus，使其对本机服务器性能进行监控。

安装步骤

docker基于epel安装，需要先配置epel源

yum -y install wget
cd /etc/yum.repos.d/
wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo
yum clean all
yum makecache
yum -y install epel-release

关闭selinux和防火墙

setenforce 0
sed -i 's#SELINUX=enforcing#SELINUX=disabled#g' /etc/selinux/config 
systemctl stop firewalld

安装docker

[root@localhost ~]# yum -y install docker

如果启动起不来，就重启一下操作系统

[root@localhost ~]# systemctl restart docker
[root@localhost ~]# systemctl enable docker

[root@localhost ~]# cat /etc/docker/daemon.json 
{
  "registry-mirrors": ["https://ca7fxpxa.mirror.aliyuncs.com"]
}
[root@localhost ~]# systemctl restart docker

拉取镜像包

[root@localhost ~]# docker pull prometheus
[root@localhost ~]# docker images
REPOSITORY                  TAG                 IMAGE ID            CREATED             SIZE
docker.io/prom/prometheus   latest              de242295e225        9 days ago          140 MB

安装prometheus

[root@localhost ~]# docker run -d --name prometheus -p 9090:9090 docker.io/prom/prometheus
[root@localhost ~]# docker ps
CONTAINER ID        IMAGE                       COMMAND                  CREATED             STATUS              PORTS                    NAMES
f51af4597d14        docker.io/prom/prometheus   "/bin/prometheus -..."   30 seconds ago      Up 29 seconds       0.0.0.0:9090->9090/tcp   prometheus

浏览器访问ip:9090即可