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提前准备

1.centos7环境

主机名	操作系统	IP	CPU	内存	部署组件	端口	描述
localhost	CentOS 7.3	192.168.111.129	2核	8GB	Prometheus Server Grafana Node Exporter Alertmanager	9010 9006 9009 9008、9007	—

2.防火墙开放端口

port：9010、9009、9008、9007、9006

#开放端口

firewall-cmd --zone=public --add-port=9006-9010/tcp --permanent

firewall-cmd --reload

#查看开放的端口

firewall-cmd --list-all

3.提前download安装包

如下图所示：

PS：如果是联网情况下，可直接使用：wget https://github.com/prometheus/prometheus/releases/download/v2.20.1/prometheus-2.20.1.linux-amd64.tar.gz

Prometheus 部署

安装包准备

[root@localhost prometheus]# cd /home/prometheus/
[root@localhost prometheus]# wget https://github.com/prometheus/prometheus/releases/download/v2.20.1/prometheus-2.20.1.linux-amd64.tar.gz

解压安装包 && 安装

[root@localhost prometheus]# tar -zxf prometheus-2.20.1.linux-amd64.tar.gz
[root@localhost prometheus]# mv prometheus-2.20.1.linux-amd64 /usr/local/prometheus

添加 prometheus 用户

[root@localhost prometheus]# useradd -M -s /sbin/nologin prometheus

创建目录 && 赋权

[root@localhost prometheus]# mkdir -p /data/prometheus
[root@localhost prometheus]# chown -R prometheus:prometheus /usr/local/prometheus /data/prometheus

配置开机启动脚本

[root@localhost prometheus]# vi /usr/lib/systemd/system/prometheus.service

[Unit]
Description=Prometheus
After=network.target

[Service]
Type=simple
Environment="GOMAXPROCS=4"
User=prometheus
Group=prometheus
ExecReload=/bin/kill -HUP $MAINPID
ExecStart=/usr/local/prometheus/prometheus \
--config.file=/usr/local/prometheus/prometheus.yml \
--storage.tsdb.path=/data/prometheus \
--storage.tsdb.retention=30d \
--web.console.libraries=/usr/local/prometheus/console_libraries \
--web.console.templates=/usr/local/prometheus/consoles \
--web.listen-address=0.0.0.0:9010 \
--web.read-timeout=5m \
--web.max-connections=10 \
--query.max-concurrency=20 \
--query.timeout=2m \
--web.enable-lifecycle
PrivateTmp=true
PrivateDevices=true
ProtectHome=true
NoNewPrivileges=true
LimitNOFILE=infinity
ReadWriteDirectories=/data/prometheus
ProtectSystem=full

SyslogIdentifier=prometheus
Restart=always

[Install]
WantedBy=multi-user.target

启动 Prometheus 服务

[root@localhost prometheus]# systemctl daemon-reload && systemctl enable prometheus && systemctl start prometheus
Created symlink from /etc/systemd/system/multi-user.target.wants/prometheus.service to /usr/lib/systemd/system/prometheus.service.

查看 Prometheus 状态

1.systemctl 方式

[root@localhost prometheus]# systemctl status prometheus

2.端口方式

[root@localhost prometheus]# netstat -ntlp | grep 9010

3.web 页面方式

Prometheus 配置

[root@localhost prometheus]# cat /usr/local/prometheus/prometheus.yml | grep -v '^$' | grep -v '^#'

global:
scrape_interval: 15s # Set the scrape interval to every 15 seconds. Default is every 1 minute.
evaluation_interval: 15s # Evaluate rules every 15 seconds. The default is every 1 minute.
# scrape_timeout is set to the global default (10s).
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
scrape_configs:
# The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
- job_name: 'prometheus'
# metrics_path defaults to '/metrics'
# scheme defaults to 'http'.
static_configs:
- targets: ['192.168.111.129:9010']