Centos7.4安装部署PrometheusV2.16.0

环境

下载安装包

GIT下载地址：
https://github.com/prometheus/prometheus/releases/download/v2.16.0/prometheus-2.16.0.linux-arm64.tar.gz

CSDN下载地址：
https://download.csdn.net/download/xtlhxl/12281245

安装

创建prometheus用户及组，并指定家目录

[root@manager ~]# groupadd prometheus
[root@manager ~]# useradd -g prometheus prometheus -d /opt/prometheus/

将家目录做为prometheus的安装目录，将下载的安装包上传于此，然后解压

[root@manager prometheus]# ll
total 58212
-rw-r--r-- 1 root root 59608515 May 26 16:58 prometheus-2.16.0.linux-amd64.tar.gz
[root@manager prometheus]# tar -zxvf prometheus-2.16.0.linux-amd64.tar.gz 
prometheus-2.16.0.linux-amd64/
prometheus-2.16.0.linux-amd64/LICENSE
prometheus-2.16.0.linux-amd64/promtool
prometheus-2.16.0.linux-amd64/NOTICE
prometheus-2.16.0.linux-amd64/consoles/
prometheus-2.16.0.linux-amd64/consoles/node.html
prometheus-2.16.0.linux-amd64/consoles/index.html.example
prometheus-2.16.0.linux-amd64/consoles/prometheus-overview.html
prometheus-2.16.0.linux-amd64/consoles/node-disk.html
prometheus-2.16.0.linux-amd64/consoles/node-overview.html
prometheus-2.16.0.linux-amd64/consoles/node-cpu.html
prometheus-2.16.0.linux-amd64/consoles/prometheus.html
prometheus-2.16.0.linux-amd64/console_libraries/
prometheus-2.16.0.linux-amd64/console_libraries/menu.lib
prometheus-2.16.0.linux-amd64/console_libraries/prom.lib
prometheus-2.16.0.linux-amd64/prometheus
prometheus-2.16.0.linux-amd64/prometheus.yml
prometheus-2.16.0.linux-amd64/tsdb
[root@manager prometheus]# ll

查看目录内文件

[root@manager prometheus-2.16.0.linux-amd64]# ll
total 140984
drwxr-xr-x 2 3434 3434       38 Feb 14 09:52 console_libraries
drwxr-xr-x 2 3434 3434      173 Feb 14 09:52 consoles
-rw-r--r-- 1 3434 3434    11357 Feb 14 09:52 LICENSE
-rw-r--r-- 1 3434 3434     3184 Feb 14 09:52 NOTICE
-rwxr-xr-x 1 3434 3434 82329106 Feb 14 07:52 prometheus
-rw-r--r-- 1 3434 3434      926 Feb 14 09:52 prometheus.yml
-rwxr-xr-x 1 3434 3434 48417809 Feb 14 07:54 promtool
-rwxr-xr-x 1 3434 3434 13595766 Feb 14 07:54 tsdb

设置环境变量

[root@manager prometheus-2.16.0.linux-amd64]# vim /etc/profile

export PROMETHEUS_HOME=/opt/prometheus
export PATH=$PROMETHEUS_HOME/prometheus-2.16.0.linux-amd64:$PATH

[root@manager prometheus-2.16.0.linux-amd64]# source /etc/profile

创建prometheus.service 文件
进入/etc/systemd/system目录，创建prometheus.service文件，并编辑如下内容

# vim /etc/systemd/system/prometheus.service

[Unit]
Description=Prometheus
Documentation=https://prometheus.io/
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/opt/prometheus/prometheus-2.16.0.linux-amd64/prometheus --config.file=/opt/prometheus/prometheus-2.16.0.linux-amd64/prometheus.yml --storage.tsdb.path=/opt/prometheus/prometheus-2.16.0.linux-amd64/data
Restart=on-failure


[Install]
WantedBy=multi-user.target

进入/opt/prometheus/prometheus-2.16.0.linux-amd64目录，创建一个数据存在目录，并修改所属用户及组

[root@manager prometheus-2.16.0.linux-amd64]# mkdir data
[root@manager prometheus-2.16.0.linux-amd64]# chown prometheus:prometheus data/

修改配置文件prometheus.yml

注：暂时未做任务更改

# 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=` to any timeseries scraped from this config.
  - job_name: 'prometheus'

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
    - targets: ['localhost:9090']

启动

[root@manager prometheus-2.16.0.linux-amd64]# systemctl daemon-reload
[root@manager prometheus-2.16.0.linux-amd64]# systemctl start prometheus.service
[root@manager prometheus-2.16.0.linux-amd64]# systemctl enable prometheus.service

浏览器访问

浏览器访问http://IP:9090/可打开自带的UI界面

下载node_exporter

GIT下载

https://github.com/prometheus/node_exporter/releases/download/v0.17.0/node_exporter-0.17.0.linux-amd64.tar.gz

安装

3个节点都装

安装思路与prometheus一样

• 上传解压
• 增加prometheus用户和组（没有安装prometheus的节点）
• 解压后目录修改owner
• /etc/systemd/system目录下创建node_exporter.service
• 启动服务

node_exporter.service内容

[Unit]
Description=node_exporter
Documentation=https://prometheus.io/
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/opt/prometheus/node_exporter-0.17.0.linux-amd64/node_exporter
Restart=on-failure

[Install]
WantedBy=multi-user.target

启动服务

[root@master prometheus]# systemctl daemon-reload
[root@master prometheus]# systemctl start node_exporter.service
[root@master prometheus]# systemctl enable node_exporter.service

访问

http://10.180.249.57:9100/metrics
http://10.180.249.58:9100/metrics
http://10.180.249.59:9100/metrics

prometheus访问

如果要查询node_exporter，需要对prometheus.yml配置文件做修改

scrape_configs:
  # The job name is added as a label `job=` to any timeseries scraped from this config.
  - job_name: 'prometheus'

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
    - targets: ['10.180.249.57:9090']

  - job_name: 'manager.rancher'
    static_configs:
    - targets: ['10.180.249.57:9100']
      labels:
        instance: 'sys1'

  - job_name: 'master.rancher'
    static_configs:
    - targets: ['10.180.249.58:9100']
      labels:
        instance: 'sys2'

  - job_name: 'worker.rancher'
    static_configs:
    - targets: ['10.180.249.59:9100']
      labels:
        instance: 'sys3'

然后重新启动prometheus

[root@manager prometheus-2.16.0.linux-amd64]# systemctl restart prometheus

UI界面查看