prometheus部署node,server以及域名加告警

偏执的太偏执、 2022-05-24 11:48 363阅读 0赞

**安装prometheus**  
系统

[root@i-u7jq7uyl ~]# cat /etc/redhat-release
    CentOS Linux release 7.2.1511 (Core)

本文档只是部署单节点，要部署多个节点请参考[官方federation][federation]  
下载prometheus,也可以自己编译[download][]

wget https://github.com/prometheus/prometheus/releases/download/v2.2.1/prometheus-2.2.1.linux-amd64.tar.gz

解压prometheus

tar -zxvf prometheus-2.2.1.linux-amd64.tar.gz

启动prometheus

[root@i-vzdytl5t prometheus-2.2.1.linux-amd64]# ./prometheus
    level=info ts=2018-05-26T08:28:25.473673104Z caller=main.go:220 msg="Starting Prometheus" version="(version=2.2.1, branch=HEAD, revision=bc6058c81272a8d938c05e75607371284236aadc)"
    level=info ts=2018-05-26T08:28:25.473938997Z caller=main.go:221 build_context="(go=go1.10, user=root@149e5b3f0829, date=20180314-14:15:45)"
    level=info ts=2018-05-26T08:28:25.474049794Z caller=main.go:222 host_details="(Linux 3.10.0-862.3.2.el7.x86_64 #1 SMP Mon May 21 23:36:36 UTC 2018 x86_64 i-vzdytl5t (none))"
    level=info ts=2018-05-26T08:28:25.474148189Z caller=main.go:223 fd_limits="(soft=1024, hard=4096)"
    level=info ts=2018-05-26T08:28:25.477875503Z caller=web.go:382 component=web msg="Start listening for connections" address=0.0.0.0:9090
    level=info ts=2018-05-26T08:28:25.47785542Z caller=main.go:504 msg="Starting TSDB ..."
    level=info ts=2018-05-26T08:28:25.483219348Z caller=main.go:514 msg="TSDB started"
    level=info ts=2018-05-26T08:28:25.483277216Z caller=main.go:588 msg="Loading configuration file" filename=prometheus.yml
    level=info ts=2018-05-26T08:28:25.484611923Z caller=main.go:491 msg="Server is ready to receive web requests."

![pro][]  
安装prometheus的dashboard [grafana][],安装文档[grafana-installation][] [红帽安装][Link 1]

wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-5.1.3-1.x86_64.rpm
    yum install initscripts fontconfig  urw-fonts -y
    
    [root@i-vzdytl5t prometheus]# rpm -Uvh grafana-5.1.3-1.x86_64.rpm
    warning: grafana-5.1.3-1.x86_64.rpm: Header V4 RSA/SHA1 Signature, key ID 24098cb6: NOKEY
    Preparing...                          ################################# [100%] Updating / installing... 1:grafana-5.1.3-1 ################################# [100%]
    ### NOT starting on installation, please execute the following statements to configure grafana to start automatically using systemd sudo /bin/systemctl daemon-reload sudo /bin/systemctl enable grafana-server.service ### You can start grafana-server by executing
     sudo /bin/systemctl start grafana-server.service
    POSTTRANS: Running script
    
    root@i-vzdytl5t prometheus]# systemctl enable grafana-server.service
    Created symlink from /etc/systemd/system/multi-user.target.wants/grafana-server.service to /usr/lib/systemd/system/grafana-server.service.
    [root@i-vzdytl5t prometheus]# systemctl start grafana-server.service
    [root@i-vzdytl5t prometheus]# systemctl status grafana-server.service

访问nodeIP:3000，用户/密码默认是`admin/admin`

![11][]  
添加prometheus数据源，参考\[pro-grafana\]  
![01][]  
添加prometheus grafana的dashboard  
![02][]

![d][]

## 部署监控主机 ##

部署监控主机，需要安装[node\_exporter  
][node_exporter]

mkdir node
    cd node
    wget https://github.com/prometheus/node_exporter/releases/download/v0.16.0/node_exporter-0.16.0.linux-amd64.tar.gz
    
    [root@i-u7jq7uyl node]# tar -zxvf node_exporter-0.16.0.linux-amd64.tar.gz
    node_exporter-0.16.0.linux-amd64/
    node_exporter-0.16.0.linux-amd64/LICENSE
    node_exporter-0.16.0.linux-amd64/node_exporter
    node_exporter-0.16.0.linux-amd64/NOTICE
    [root@i-u7jq7uyl node]# cd node_exporter-0.16.0.linux-amd64
    [root@i-u7jq7uyl node_exporter-0.16.0.linux-amd64]# ls -l
    total 16524
    -rw-r--r-- 1 3434 3434    11357 May 15 23:57 LICENSE
    -rwxr-xr-x 1 3434 3434 16900416 May 15 23:53 node_exporter
    -rw-r--r-- 1 3434 3434      463 May 15 23:57 NOTICE

启动node\_exporter

root@i-u7jq7uyl node_exporter-0.16.0.linux-amd64]# ./node_exporter &
    [1] 13139
    [root@i-u7jq7uyl node_exporter-0.16.0.linux-amd64]# INFO[0000] Starting node_exporter (version=0.16.0, branch=HEAD, 
    ...
    INFO[0000] Listening on :9100                            source="node_exporter.go:111"

修改配file\_sd\_config和consul\_sd\_config

修改配置文件

重新启动prometheus服务

root@i-vzdytl5t prometheus-2.2.1.linux-amd64]# ./prometheus
    level=info ts=2018-05-26T10:01:07.958086112Z caller=main.go:220 msg="Starting Prometheus" version="(version=2.2.1, branch=HEAD, revision=bc6058c81272a8d938c05e75607371284236aadc)"
    level=info ts=2018-05-26T10:01:07.958196332Z caller=main.go:221 build_context="(go=go1.10, user=root@149e5b3f0829, date=20180314-14:15:45)"
    level=info ts=2018-05-26T10:01:07.958225106Z caller=main.go:222 host_details="(Linux 3.10.0-862.3.2.el7.x86_64 #1 SMP Mon May 21 23:36:36 UTC 2018 x86_64 i-vzdytl5t (none))"
    level=info ts=2018-05-26T10:01:07.958248443Z caller=main.go:223 fd_limits="(soft=1024, hard=4096)"
    level=info ts=2018-05-26T10:01:07.960350104Z caller=main.go:504 msg="Starting TSDB ..."
    level=info ts=2018-05-26T10:01:07.961534398Z caller=web.go:382 component=web msg="Start listening for connections" address=0.0.0.0:9090
    level=info ts=2018-05-26T10:01:07.988711502Z caller=main.go:514 msg="TSDB started"
    level=info ts=2018-05-26T10:01:07.989027171Z caller=main.go:588 msg="Loading configuration file" filename=prometheus.yml
    level=info ts=2018-05-26T10:01:07.991016054Z caller=main.go:491 msg="Server is ready to receive web requests."

启动之后  
![1][]

![11][11 1]

## 部署监控服务 ##

监控mysql  
安装mysql服务

yum install mariadb*

启动mysql

修改mysql root密码:参考链接[mysql密码修改][mysql]

systemctl start mariadb systemctl status mariadb

下载[mysqld\_exporter][mysqld_exporter]

wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.10.0/mysqld_exporter-0.10.0.linux-amd64.tar.gz 
    
    //解压
    tar -zvxf mysqld_exporter-0.10.0.linux-amd64.tar.gz

修改my.cnf

[root@i-u7jq7uyl mysqld_exporter-0.10.0.linux-amd64]# cat /etc/my.cnf
    [mysqld]
    datadir=/var/lib/mysql
    socket=/var/lib/mysql/mysql.sock
    # Disabling symbolic-links is recommended to prevent assorted security risks
    symbolic-links=0
    # Settings user and group are ignored when systemd is used.
    # If you need to run mysqld under a different user or group,
    # customize your systemd unit file for mariadb according to the
    # instructions in http://fedoraproject.org/wiki/Systemd
    
    [mysqld_safe]
    log-error=/var/log/mariadb/mariadb.log
    pid-file=/var/run/mariadb/mariadb.pid
    
    #
    # include all files from the config directory
    #
    [client]
    host= 0.0.0.0
    user= root
    password=qinzhao

启动mysqld\_exporter

[root@i-u7jq7uyl mysqld_exporter-0.10.0.linux-amd64]# ./mysqld_exporter -config.my-cnf /etc/my.cnf &
    [2] 16919
    [root@i-u7jq7uyl mysqld_exporter-0.10.0.linux-amd64]# INFO[0000] Starting mysqld_exporter (version=0.10.0, branch=master, revision=80680068f15474f87847c8ee8f18a2939a26196a)  source="mysqld_exporter.go:460"
    INFO[0000] Build context (go=go1.8.1, user=root@3b0154cd9e8e, date=20170425-11:24:12)  source="mysqld_exporter.go:461"
    INFO[0000] Listening on :9104                            source="mysqld_exporter.go:479"

修改prometheus配置文件,添加以下内容

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: node_exporter     static_configs:
        - targets: ['10.39.43.120:9100']   - job_name: 'mysql global status'     scrape_interval: 15s
        static_configs:
        - targets:         - 10.39.43.120:9104     params:
          collect[]:
            - global_status   - job_name: 'mysql performance'     scrape_interval: 1m
        static_configs:
          - targets:         - '10.39.43.120:9104'     params:
          collect[]:
            - perf_schema.tableiowaits         - perf_schema.indexiowaits         - perf_schema.tablelocks

![mysql][mysql 1]

![011][]

监控redis，[redis-export github][]

安装redis

yum install resdis docker go -y
    
    systemctl enable docker
    systemctl start docker systemctl start redis

启动redis\_exporter

docker run -d --name redis_exporter -p 9121:9121 oliver006/redis_exporter
    [root@i-u7jq7uyl mysqld_exporter-0.10.0.linux-amd64]# docker ps
    CONTAINER ID        IMAGE                      COMMAND                 CREATED             STATUS              PORTS                    NAMES
    23f8171fb0af        oliver006/redis_exporter   "/bin/redis_exporter"   3 seconds ago       Up 3 seconds        0.0.0.0:9121->9121/tcp   redis_exporter

prometheus.yaml的文件

![1111][]

## 部署监控域名 ##

参考[github blackbox\_exporter][github blackbox_exporter]  
下载

wget https://github.com/prometheus/blackbox_exporter/releases/download/v0.12.0/blackbox_exporter-0.12.0.linux-amd64.tar.gz
    
    [root@i-u7jq7uyl blackbox]# tar -zxvf blackbox_exporter-0.12.0.linux-amd64.tar.gz
    blackbox_exporter-0.12.0.linux-amd64/
    blackbox_exporter-0.12.0.linux-amd64/blackbox.yml
    blackbox_exporter-0.12.0.linux-amd64/LICENSE
    blackbox_exporter-0.12.0.linux-amd64/NOTICE
    blackbox_exporter-0.12.0.linux-amd64/blackbox_exporter
    
    cd blackbox_exporter-0.12.0.linux-amd64

修改prometheus配置文件

- job_name: 'blackbox'     metrics_path: /probe
        params:
          module: [http_2xx]  # Look for a HTTP 200 response.
        static_configs:
        - targets:       - http://prometheus.io       - https://prometheus.io       - http://www.baidu.com     relabel_configs:
          - source_labels: [__address__]         target_label: __param_target
          - source_labels: [__param_target]         target_label: instance
          - target_label: __address__         replacement: 10.39.43.120:9115

启动blackbox\_exporter

root@i-u7jq7uyl blackbox_exporter-0.12.0.linux-amd64]# ./blackbox_exporter --config.file=./blackbox.yml & [3] 20257 [root@i-u7jq7uyl blackbox_exporter-0.12.0.linux-amd64]# level=info ts=2018-05-26T11:38:16.567749973Z caller=main.go:213 msg="Starting blackbox_exporter" version="(version=0.12.0, branch=HEAD, revision=4a22506cf0cf139d9b2f9cde099f0012d9fcabde)"
    level=info ts=2018-05-26T11:38:16.568271598Z caller=main.go:220 msg="Loaded config file"
    level=info ts=2018-05-26T11:38:16.56841735Z caller=main.go:324 msg="Listening on address" address=:9115

![222][]

## 部署告警 ##

下载 [github-alert][]

wget https://github.com/prometheus/alertmanager/releases/download/v0.15.0-rc.1/alertmanager-0.15.0-rc.1.linux-amd64.tar.gz
    tar -zxvf alertmanager-0.15.0-rc.1.linux-amd64.tar.gz
    
    [root@i-vzdytl5t prometheus-2.2.1.linux-amd64]# tar -zxvf alertmanager-0.15.0-rc.1.linux-amd64.tar.gz
    alertmanager-0.15.0-rc.1.linux-amd64/
    alertmanager-0.15.0-rc.1.linux-amd64/simple.yml
    alertmanager-0.15.0-rc.1.linux-amd64/LICENSE
    alertmanager-0.15.0-rc.1.linux-amd64/NOTICE
    alertmanager-0.15.0-rc.1.linux-amd64/alertmanager
    alertmanager-0.15.0-rc.1.linux-amd64/amtool

修改prometheus配置文件

# Alertmanager configuration
    alerting:
      alertmanagers:
      - static_configs:     - targets:       - localhost:9093

启动altermanager

root@i-vzdytl5t alertmanager-0.15.0-rc.1.linux-amd64]# ./alertmanager --config.file=./simple.yml & [1] 19066 [root@i-vzdytl5t alertmanager-0.15.0-rc.1.linux-amd64]# level=info ts=2018-05-26T11:46:14.350518977Z caller=main.go:140 msg="Starting Alertmanager" version="(version=0.15.0-rc.1, branch=HEAD, revision=acb111e812530bec1ac6d908bc14725793e07cf3)"
    level=info ts=2018-05-26T11:46:14.350611647Z caller=main.go:141 build_context="(go=go1.10, user=root@f278953f13ef, date=20180323-13:05:10)"
    level=info ts=2018-05-26T11:46:14.371247513Z caller=cluster.go:249 component=cluster msg="Waiting for gossip to settle..." interval=2s
    level=info ts=2018-05-26T11:46:14.371641831Z caller=main.go:270 msg="Loading configuration file" file=./simple.yml level=info ts=2018-05-26T11:46:14.376896501Z caller=main.go:346 msg=Listening address=:9093
    level=info ts=2018-05-26T11:46:16.371508823Z caller=cluster.go:274 component=cluster msg="gossip not settled" polls=0 before=0 now=1 elapsed=2.000127475s

![00000][]

更多的exporters请参考[exporters][]  
参考:  
[alerting][]

[federation]: https://prometheus.io/docs/prometheus/latest/federation/
[download]: https://github.com/prometheus/prometheus/releases/download/v2.2.1/prometheus-2.2.1.linux-amd64.tar.gz
[pro]: /images/20220524/7c5db70b89dd4f919adad974b60c7456.png
[grafana]: http://grafana.org/
[grafana-installation]: http://docs.grafana.org/installation/
[Link 1]: http://docs.grafana.org/installation/rpm/
[11]: /images/20220524/6aad0ef8f9d64640b946a585b05bc33b.png
[01]: /images/20220524/c42258d672794b9abb8adc8e983383e9.png
[02]: /images/20220524/e4badfbc4a854e6cad64b8a227b76bbd.png
[d]: /images/20220524/bb29aecafdde48339a5d9baec9abb8c5.png
[node_exporter]: https://github.com/prometheus/node_exporter
[1]: /images/20220524/62b60435e1ad4c67b236520daf814be6.png
[11 1]: /images/20220524/a0d2957ef4ed474cba86e494fcd31449.png
[mysql]: https://blog.csdn.net/evandeng2009/article/details/50999706
[mysqld_exporter]: https://github.com/prometheus/mysqld_exporter/releases/download/v0.10.0/mysqld_exporter-0.10.0.linux-amd64.tar.gz
[mysql 1]: /images/20220524/68b3e0affb7a4f24aff19880824aa8d4.png
[011]: /images/20220524/41fca82688954c92b50bacd9e2332834.png
[redis-export github]: https://github.com/oliver006/redis_exporter
[1111]: /images/20220524/2dc64ad6d51f4e938ee88d104bfd4252.png
[github blackbox_exporter]: https://github.com/prometheus/blackbox_exporter
[222]: /images/20220524/3a1c219e69fe4eac89d90c4d77fc67c9.png
[github-alert]: https://github.com/prometheus/alertmanager
[00000]: /images/20220524/973e8d0d807e4793a2f2bee2560aaf27.png
[exporters]: https://prometheus.io/docs/instrumenting/exporters/
[alerting]: https://prometheus.io/docs/alerting/configuration/