Prometheus架构从入门到实践(4) --promethe
1.安装组件一览
prometheus 监视server port:9090
node_exporter linux node exporter port:9100
wmi_exporter Win node exporter port:9182
Grafana 监视展示 port:3000
Alertmanager 监视告警 port:9093
2.prometheus install
官网地址
https://prometheus.io/docs/introduction/overview/
安装包取得
# wget https://github.com/prometheus/prometheus/releases/download/v2.25.0/prometheus-2.25.0.linux-amd64.tar.gz
环境调整
# tar -zxvf prometheus-2.25.0.linux-amd64.tar.gz
# cp -p /etc/profile /etc/profile.`date +%Y%m%d`
# vi /etc/profile
PATH=$PATH
PATH=$PATH:/root/prometheus-2.25.0.linux-amd64
export PATH
# prometheus
配置文件设置
# cp -p /root/prometheus-2.25.0.linux-amd64/prometheus.yml /root/prometheus-2.25.0.linux-amd64/prometheus.yml.`date +%Y%m%d`
# vi /root/prometheus-2.25.0.linux-amd64/prometheus.yml
# my global config
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).
# Alertmanager configuration
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
# Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
rule_files:
# - "first_rules.yml"
# - "second_rules.yml"
# A scrape configuration containing exactly one endpoint to scrape:
# Here it's Prometheus itself.
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: ['localhost:9090']
- job_name: 'node1'
scrape_interval: 10s
static_configs:
- targets: ['192.168.8.100:9100']
- job_name: 'node2'
scrape_interval: 10s
static_configs:
- targets: ['192.168.8.101:9100']
# grep -v '^#' /srv/prometheus/prometheus.yml
启动文件制作
# cd /usr/lib/systemd/system
# vi prometheus.service
[Unit]
Description=prometheus
After=network.target
[Service]
User=root
Group=root
WorkingDirectory=/root/prometheus-2.25.0.linux-amd64
ExecStart=/root/prometheus-2.25.0.linux-amd64/prometheus --config.file=/root/prometheus-2.25.0.linux-amd64/prometheus.yml
[Install]
WantedBy=multi-user.target
# systemctl daemon-reload
prometheus启动
# systemctl start prometheus
# systemctl status prometheus
设置prometheus自动启动
# systemctl enable prometheus
# prometheus --version
prometheus, version 2.25.0 (branch: HEAD, revision: a6be548dbc17780d562a39c0e4bd0bd4c00ad6e2)
build user: root@615f028225c9
build date: 20210217-14:17:24
go version: go1.15.8
platform: linux/amd64
Web端确认
URL：http://192.168.8.124:9090/
3.node_exporter install
官方网址
https://github.com/prometheus/node_exporter/releases
安装包获取并解压
# wget https://github.com/prometheus/node_exporter/releases/download/v1.1.1/node_exporter-1.1.1.linux-amd64.tar.gz
# tar -zxvf node_exporter-1.1.1.linux-amd64.tar.gz
# cd node_exporter-1.1.1.linux-amd64/
node_exporter自启动文件制作
# vi /usr/lib/systemd/system/node_exporter.service
#Prometheus Node Exporter Upstart script
[Unit] /root/node_exporter-1.1.1.linux-amd64/node_exporter --help
Description=Node Exporter
Wants=network-online.target
After=network-online.target
[Service]
User=root
ExecStart=/root/node_exporter-1.1.1.linux-amd64/node_exporter
[Install]
WantedBy=default.target
# systemctl daemon-reload
设置node_exporter自启动
# systemctl enable node_exporter
启动node_exporter
# systemctl start node_exporter
# systemctl status node_exporter
Web端确认
URL：http://192.168.8.124:9100/metrics
4.wmi_exporter install
https://github.com/prometheus-community/windows_exporter/releases
下载地址：https://github.com/martinlindhe/wmi_exporter/releases/download/v0.3.3/wmi_exporter-0.3.3-amd64.msi
Windows默认9182端口。直接双击安装即可。
访问http://IP:9182/metrics；显示数据说明数据采集器安装成功
Web端确认
http://192.168.8.108:9182/metrics
5.Grafana install
官方地址
https://grafana.com/
Grafana repo文件制作
# vi /etc/yum.repos.d/grafana.repo
[grafana]
name=grafana
baseurl=https://packages.grafana.com/oss/rpm
repo_gpgcheck=1
enabled=1
gpgcheck=1
gpgkey=https://packages.grafana.com/gpg.key
sslverify=1
sslcacert=/etc/pki/tls/certs/ca-bundle.crt
YUM 安装grafana
# yum -y install grafana
启动grafana
# systemctl start grafana-server
# systemctl status grafana-server
设置grafana自动启动
# systemctl enable grafana-server
Web确认
http://192.168.8.124:3000/login
6.alertmanager install
官方网址
https://github.com/prometheus/alertmanager/releases
alertmanager安装包获取及解压
# wget https://github.com/prometheus/alertmanager/releases/download/v0.21.0/alertmanager-0.21.0.linux-amd64.tar.gz
# tar -zxvf alertmanager-0.21.0.linux-amd64.tar.gz
alertmanager自启动文件制作
# vi /usr/lib/systemd/system/alertmanager.service
[Unit]
Description=Alertmanager
Documentation=https://prometheus.io/
After=network.target
[Service]
Type=simple
ExecStart=/root/alertmanager-0.21.0.linux-amd64/alertmanager --config.file=/root/alertmanager-0.21.0.linux-amd64/alertmanager.yml
Restart=on-failure
[Install]
WantedBy=multi-user.target
# systemctl daemon-reload
设置alertmanager自动启动
# systemctl enable alertmanager
启动alertmanager
# systemctl start alertmanager
# systemctl status alertmanager
# netstat -lntup |grep alertmanager
tcp6 0 0 :::9093 :::* LISTEN 4090/alertmanager
tcp6 0 0 :::9094 :::* LISTEN 4090/alertmanager
udp6 0 0 :::9094 :::* 4090/alertmanager
Web确认
URL：http://192.168.8.124:9093/
7.prometheus联携Alertmanager配置
# cp -p /root/prometheus-2.25.0.linux-amd64/prometheus.yml /root/prometheus-2.25.0.linux-amd64/prometheus.yml.XXXXXX
# vi /root/prometheus-2.25.0.linux-amd64/prometheus.yml
变更前：
# Alertmanager configuration
alerting:
alertmanagers:
- static_configs:
- targets:
# - alertmanager:9093
变更后：
alerting:
alertmanagers:
- static_configs:
- targets: ['192.168.8.124:9093']
# systemctl restart prometheus
# systemctl status prometheus
