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prometheus-添加监控linux服务器

沙漠渔
沙漠渔
2024-01-18 23:46:06 / 0 评论 / 0 点赞 / 114 阅读 / 9,149 字 / 正在检测是否收录...
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1. prometheus-添加监控linux服务器

  • prometheus添加监控linux服务器

    • node_exporter：用于监控Linux系统的指标采集器。
    • 常用指标：
      • CPU
      • 内存
      • 硬盘
      • 网络流量
      • 文件描述符
      • 系统负载
      • 系统服务
    • 数据接口：http://IP:9100
    • 使用文档：https://prometheus.io/docs/guides/node-exporter/
    • GitHub：https://github.com/prometheus/node_exporter

  • 安装部署

    • 下载node_exporter包
      image

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

    • 监控端主机下载

      [root@VM-0-17-centos ~]# wget https://github.com/prometheus/node_exporter/releases/download/v1.1.2/node_exporter-1.1.2.linux-amd64.tar.gz

    • 解压

      [root@VM-0-17-centos ~]# tar  -xvf node_exporter-1.1.2.linux-amd64.tar.gz 
node_exporter-1.1.2.linux-amd64/
node_exporter-1.1.2.linux-amd64/LICENSE
node_exporter-1.1.2.linux-amd64/NOTICE
node_exporter-1.1.2.linux-amd64/node_exporter

    • 拷贝到opt目录下存放

      [root@VM-0-17-centos ~]# mv node_exporter-1.1.2.linux-amd64 /opt/
[root@VM-0-17-centos ~]# ll /opt/node_exporter-1.1.2.linux-amd64/
total 18748
-rw-r--r-- 1 3434 3434    11357 Mar  5 17:41 LICENSE
-rwxr-xr-x 1 3434 3434 19178528 Mar  5 17:29 node_exporter
-rw-r--r-- 1 3434 3434      463 Mar  5 17:41 NOTICE
[root@VM-0-17-centos ~]# mv /opt/node_exporter-1.1.2.linux-amd64 /opt/node_exporter

    • 切换目录

      [root@VM-0-17-centos ~]# cd /opt/node_exporter/
[root@VM-0-17-centos node_exporter]# ll
total 18748
-rw-r--r-- 1 3434 3434    11357 Mar  5 17:41 LICENSE
-rwxr-xr-x 1 3434 3434 19178528 Mar  5 17:29 node_exporter
-rw-r--r-- 1 3434 3434      463 Mar  5 17:41 NOTICE

    • 启动服务尝试

      [root@VM-0-17-centos node_exporter]# ./node_exporter 
level=info ts=2021-05-19T07:00:05.583Z caller=node_exporter.go:178 msg="Starting node_exporter" version="(version=1.1.2, branch=HEAD, revision=b597c1244d7bef49e6f3359c87a56dd7707f6719)"
level=info ts=2021-05-19T07:00:05.583Z caller=node_exporter.go:179 msg="Build context" build_context="(go=go1.15.8, user=root@f07de8ca602a, date=20210305-09:29:10)"
level=warn ts=2021-05-19T07:00:05.583Z caller=node_exporter.go:181 msg="Node Exporter is running as root user. This exporter is designed to run as unpriviledged user, root is not required."
level=info ts=2021-05-19T07:00:05.583Z caller=filesystem_common.go:74 collector=filesystem msg="Parsed flag --collector.filesystem.ignored-mount-points" flag=^/(dev|proc|sys|var/lib/docker/.+)($|/)
level=info ts=2021-05-19T07:00:05.583Z caller=filesystem_common.go:76 collector=filesystem msg="Parsed flag --collector.filesystem.ignored-fs-types" flag=^(autofs|binfmt_misc|bpf|cgroup2?|configfs|debugfs|devpts|devtmpfs|fusectl|hugetlbfs|iso9660|mqueue|nsfs|overlay|proc|procfs|pstore|rpc_pipefs|securityfs|selinuxfs|squashfs|sysfs|tracefs)$
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:106 msg="Enabled collectors"
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=arp
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=bcache
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=bonding
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=btrfs
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=conntrack
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=cpu
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=cpufreq
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=diskstats
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=edac
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=entropy
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=fibrechannel
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=filefd
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=filesystem
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=hwmon
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=infiniband
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=ipvs
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=loadavg
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=mdadm
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=meminfo
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=netclass
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=netdev
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=netstat
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=nfs
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=nfsd
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=powersupplyclass
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=pressure
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=rapl
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=schedstat
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=sockstat
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=softnet
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=stat
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=textfile
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=thermal_zone
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=time
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=timex
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=udp_queues
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=uname
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=vmstat
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=xfs
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:113 collector=zfs
level=info ts=2021-05-19T07:00:05.584Z caller=node_exporter.go:195 msg="Listening on" address=:9100
level=info ts=2021-05-19T07:00:05.584Z caller=tls_config.go:191 msg="TLS is disabled." http2=false

  • 配置为系统服务管理

    • 编写系统配置服务

      [root@iZj6cbgktk3zjpge312vq1Z node_exporter]# vim  /usr/lib/systemd/system/node_exporter.service
[root@iZj6cbgktk3zjpge312vq1Z node_exporter]# cat  /usr/lib/systemd/system/node_exporter.service
[Unit]
Description=node_exporter
[Service]
# 添加认证密码文件/opt/node_exporter/config.yml ，默认可以不需要
ExecStart=/opt/node_exporter/node_exporter --web.config=/opt/node_exporter/config.yml   
ExecReload=/bin/kill -HUP $MAINPID
KillMode=process
Restart=on-failure
[Install]
WantedBy=multi-user.target

    • 添加config配置文件

      [root@VM-0-17-centos node_exporter]# yum install httpd-tools –y
[root@VM-0-17-centos node_exporter]# htpasswd -nBC 12 '' | tr -d ':\n'
New password:       #这里输入的123456
Re-type new password:    #这里输入的123456
$2y$12$.YGKNPkYfSOsm.JataWRUe4vWdTS8nW6YtPQI0Jr14eTv6E5Fpdga          # 这段是生成的key

    • 编写启动配置文件

      [root@iZj6cbgktk3zjpge312vq1Z node_exporter]# vim config.yml
[root@iZj6cbgktk3zjpge312vq1Z node_exporter]# cat config.yml
basic_auth_users:
  prometheus: $2y$12$.YGKNPkYfSOsm.JataWRUe4vWdTS8nW6YtPQI0Jr14eTv6E5Fpdga

    • 启动服务

      systemctl daemon-reload
systemctl start node_exporter
systemctl enable node_exporter

  • 在prometheus添加主机

    • 添加配置文件

      [root@iZj6cbgktk3zjpge312vq2Z prometheus]# vim prometheus.yml
[root@iZj6cbgktk3zjpge312vq2Z prometheus]# cat 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: ['127.0.0.1:9090']
  - job_name: linux
    # 添加监控主机的用户和密码
    basic_auth:
      username: prometheus
      password: 123456
    static_configs:
      - targets: ['10.1.2.211:9100']
        labels:
          prod: web

    • 重启服务

      [root@iZj6cbgktk3zjpge312vq2Z prometheus]# /bin/systemctl restart prometheus

  • 在Prometheus配置文件添加被监控端：

    • 验证prometheus配置文件
      image

    • 验证发现已经有数据了
      image

  • 使用Grafana展示node_exporter数据指标，仪表盘ID：9276

    • 导入仪表盘
      image
      image
      image

    • 添加
      image
      image

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