centos7 部署Prometheus

前言：

一、前置环境说明

1、关闭firewall

systemctl stop firewalld.service
systemctl disable firewalld.service

2、关闭selinux

vim /etc/selinux/config
SELINUX=disabled

使配置立即生效，重启永久生效

setenforce 0

3、系统约定

软件源代码包存放位置：/opt
源码包编译安装位置：/usr/local/软件名字
数据存储位置：/data

二、部署Prometheus server

1、创建用户

useradd -d /data/prometheus -s /sbin/nologin prometheus 

2、解压软件包

下载地址：https://prometheus.io/download/

tar xzvf prometheus-2.26.0.linux-amd64.tar.gz -C /usr/local/

授权属主属组

chown -R prometheus:prometheus prometheus/
ln -s /usr/local/prometheus-2.26.0.linux-amd64/ /usr/local/prometheus 

已服务启动

cat >> /usr/lib/systemd/system/prometheus.service<<EOF
[Unit]
Description=Prometheus server Daemon
After=network.target
[Service]
Type=simple
User=root
Group=root
ExecStart=/usr/local/prometheus/prometheus  --config.file=/usr/local/prometheus/prometheus.yml  --storage.tsdb.path=/data/prometheus  --storage.tsdb.retention=15d --web.enable-lifecycle
Restart = on-failure
[Install]
WantedBy=multi-user.target
EOF

3、启动服务

systemctl daemon-reload 
systemctl enable prometheus --now 
systemctl start prometheus

查看进程

netstat -tunlp | grep 9090 
cd /usr/local/prometheus 
./promtool check config prometheus.yml

三、部署node_exporter

centos 7安装

1、下载node_exporter

sudo wget https://github.com/prometheus/node_exporter/releases/download/v1.1.2/node_exporter-1.1.2.linux-amd64.tar.gz

2、解压软件

tar xf node_exporter-1.1.2.linux-amd64.tar.gz -C /usr/local/
cd /usr/local/ && mv node_exporter-1.1.2.linux-amd64/ node_exporter

3、创建用户

useradd -s /sbin/nologin prometheus
sudo chown -R prometheus:prometheus node_exporter/

4、已服务启动

cat >>/usr/lib/systemd/system/node-exporter.service<<EOF
[Unit]
Description=Prometheus server Daemon
After=network.target
[Service]
Type=simple
User=root
Group=root
ExecStart=/usr/local/prometheus/prometheus  --config.file=/usr/local/prometheus/prometheus.yml  --storage.tsdb.path=/data/prometheus  --storage.tsdb.retention=15d --web.enable-lifecycle
Restart = on-failure
[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload
systemctl enable node-exporter --now
netstat -tunlp | grep 9100

脚本：

#!/bin/bash

sudo wget https://github.com/prometheus/node_exporter/releases/download/v1.1.2/node_exporter-1.1.2.linux-amd64.tar.gz


tar xf node_exporter-1.1.2.linux-amd64.tar.gz -C /usr/local/ && cd /usr/local/ && mv node_exporter-1.1.2.linux-amd64/ node_exporter && useradd -s /sbin/nologin prometheus && chown -R prometheus:prometheus node_exporter/
cd /usr/lib/systemd/system/

cat << EOF > node-exporter.service
[Unit]
Description=Prometheus node_exporter
After=network.target
[Service]
Type=simple
User=prometheus
ExecStart=/usr/local/node_exporter/node_exporter
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

如果系统开启防火墙，需要设置防火墙规则

systemctl status firwlalld
firewall-cmd --zone=public --add-port=9100/tcp --permanent （--permanent永久生效，没有此参数重启后失效）
重新载入
firewall-cmd --reload

centos6安装

nohup ./node_exporter --web.listen-address=":9100" >/dev/null 2>&1 &

如果系统开启防火墙，需要设置防火墙规则

iptables -A INPUT -p tcp --dport 9100 -j ACCEPT
iptables -A OUTPUT -p tcp --sport 9100 -j ACCEPT
service iptables save
vim /etc/sysconfig/iptables
service iptables restart

待补充。。。