监控Jenkins，我们需要到Jenkins机器上面部署一个Jenkins-exporter。

这个是官网提供的链接，只能针对Jenkin http的连接。相对于开启HTTPS连接的Jenkins，还是建议用jenkins 插件的方式。

1.下载jenkins-exporter

使用pyhotn2就可以了，但是要有pip命令，用下面命令安装pipsudo easy_install pip下载jenkins-exportergit clone git@github.com:lovoo/jenkins_exporter.gitcd jenkins_exporter安装python依赖prometheus-client 和requestspip install -r requirements.txt如果外网环境，需要手工下载包安装

安装java环境yum install java-1.8.0-openjdk-devel下载jenkins源wget -O /etc/yum.repos.d/jenkins.repo 导入keyrpm --import 安装jenkinsyum install jenkins -y启动jenkinssystemctl start jenkinssystemctl status jenkins检查端口是否起来netstat -an|grep 8080

登陆 jenkins 页面

查看图中的文件获取初始密码

选择安装插件，推荐即可

开始安装插件

管理员用户创建

配置实例，选择IP和端口

成功进入Jenkins

3.启动jenkins-exporter

前面下载了jenkins-exporter脚本，这里我们可以手工运行一下。

cd jenkins_exporterpython jenkins_exporter.py -j  --user admin --password admin -p 9118 Polling . Serving at port: 9118说明:-j jenkin的URL--user 登陆用户--passowrd 密码-p jenkins_exporter暴露端口，供Prometheus连接

设置jenkins_exporter启动服务

echo '[Unit]Description=Jenkins_expoter[Service]ExecStart=/bin/python /root/prometheus/jenkins_exporter/jenkins_exporter.py -j  --user admin --password admin -p 9118 [Install]WantedBy=multi-user.target' >/etc/systemd/system/jenkins_exporter.service启动添加后的系统服务systemctl daemon-reloadsystemctl restart jenkins_exporter.servicenetstat -an|grep 9118

Prometheus配置文件/etc/prometheus/prometheus.yml，添加如下内容:

scrape_configs:  - job_name: 'jenkins'    # 静态添加node    static_configs:    # 指定监控端    - targets: ['localhost:9118']

重启Prometheus

systemctl restart prometheus

查看Prometheus Target ,看到如下界面，说明配置成功。

Prometheus Target

查看

# HELP jenkins_collector_collect_seconds Time spent to collect metrics from Jenkins# TYPE jenkins_collector_collect_seconds summaryjenkins_collector_collect_seconds_count 111.0jenkins_collector_collect_seconds_sum 18.111268043518066# HELP process_virtual_memory_bytes Virtual memory size in bytes.# TYPE process_virtual_memory_bytes gaugeprocess_virtual_memory_bytes 463200256.0# HELP process_resident_memory_bytes Resident memory size in bytes.# TYPE process_resident_memory_bytes gaugeprocess_resident_memory_bytes 19058688.0# HELP process_start_time_seconds Start time of the process since unix epoch in seconds.# TYPE process_start_time_seconds gaugeprocess_start_time_seconds 1611292574.2# HELP process_cpu_seconds_total Total user and system CPU time spent in seconds.# TYPE process_cpu_seconds_total counterprocess_cpu_seconds_total 4.36# HELP process_open_fds Number of open file descriptors.# TYPE process_open_fds gaugeprocess_open_fds 8.0# HELP process_max_fds Maximum number of open file descriptors.# TYPE process_max_fds gaugeprocess_max_fds 1024.0# HELP python_info Python platform information# TYPE python_info gaugepython_info{implementation="CPython",major="2",minor="7",patchlevel="5",version="2.7.5"} 1.0

笔者有话要说:

由于jenkins-exporter这个方法抓取的数据比较少，而且grafana上面的模板也没有，不建议用这个方法。后面还会出Jenkins插件安装exporter的方法。