• Prometheus入门


    部署

    官网地址: https://prometheus.io/

    rsyslog配置

    [root@ops ~]# cat > /etc/rsyslog.d/syslog_server.conf << EOF
    if $programname == 'alertmanager'               then /opt/logs/alertmanager.log
    if $programname == 'prometheus'                 then /opt/logs/prometheus.log
    if $programname == 'node_exporter'              then /opt/logs/node_exporter.log
    if $programname == 'process_exporter'            then /opt/logs/process_exporter.log
    if $programname == 'mysql_exporter'            then /opt/logs/mysql_exporter.log
    if $programname == 'redis_exporter'            then /opt/logs/redis_exporter.log
    if $programname == 'blackbox_exporter'          then /opt/logs/blackbox_exporter.log
    if $programname == 'mysqld_exporter'          then /opt/logs/mysqld_exporter.log
    if $programname == 'process-exporter'          then /opt/logs/process-exporter.log
    if $programname == 'pushgateway'                then /opt/logs/pushgateway.log
    if $programname == 'm3coordinator'              then /opt/logs/m3coordinator.log
    if $programname == 'm3dbnode'                   then /opt/logs/m3dbnode.log
    EOF

    logrotate

    [root@ops ~]# cat > /etc/logrotate.d/logrotate.conf << EOF
    /opt/logs/*.log
    {
        daily
        missingok
        notifempty
        dateext
        compress
        delaycompress
        copytruncate
        rotate 15
    }
    EOF

    重启rsyslog

    [root@ops ~]# systemctl restart rsyslog.service 
    [root@ops ~]# systemctl status rsyslog.service 
    [root@ops ~]# mkdir /opt/logs

     Prometheus部署

    下载软件

    wget https://github.com/prometheus/prometheus/releases/download/v2.29.1/prometheus-2.29.1.linux-amd64.tar.gz
    tar xf prometheus-2.29.1.linux-amd64.tar.gz -C /opt/
    cd /opt/
    ln -s prometheus-2.29.1.linux-amd64 prometheus

    准备启动文件

    cat > /usr/lib/systemd/system/prometheus.service << EOF
    [Unit]
    Description="prometheus"
    Documentation=https://prometheus.io/
    After=network.target
    
    [Service]
    Type=simple
    ExecStart=/opt/prometheus/prometheus  --config.file=/opt/prometheus/prometheus.yml --storage.tsdb.path=/opt/prometheus/data --web.enable-lifecycle
    
    Restart=on-failure
    RestartSecs=5s
    SuccessExitStatus=0
    LimitNOFILE=65536
    StandardOutput=syslog
    StandardError=syslog
    SyslogIdentifier=prometheus
    
    
    [Install]
    WantedBy=multi-user.target
    EOF

    启动服务

    systemctl start prometheus.service 
    systemctl status prometheus.service 

    浏览器访问

    http://192.168.168.106:9090/

     热重启

    # 命令行开启  --web.enable-lifecycle
    curl -X POST http://localhost:9090/-/reload 

    主配置文件

    [root@ops prometheus]# cat prometheus.yml 
    # 全局配置段
    global:
      scrape_interval: 15s     # 采集间隔时间
      evaluation_interval: 15s # 计算报警和预聚合间隔
      scrape_timeout: 10s      # 采集超时时间
      query_log_file: /opt/logs/prometheus_query_log  # 查询日志,包含各阶段耗时统计
      external_labels:          # 全局标签组
        account: 'huawei-main'  # 通过本实例采集的数据都会叠加下面的标签
            
    # Alertmanager 信息段
    alerting:
      alertmanagers:
        - static_configs:
            - targets:
              # - alertmanager:9093
    
    # 告警、预聚合配置文件段
    rule_files:
      # - "first_rules.yml"
       #- "second_rules.yml"
    
    
    # 采集配置段
    scrape_configs:
      - job_name: "prometheus"
        honor_timestamps: true
        scrape_interval: 15s
        scrape_timeout: 10s
        metrics_path: /metrics
        scheme: http
        file_sd_configs:
        - files:
          - targets/prometheus-*.yml
          refresh_interval: 1m
    
      - job_name: "nodes"
        honor_timestamps: true
        scrape_interval: 15s
        scrape_timeout: 10s
        metrics_path: /metrics
        scheme: http
        file_sd_configs:
        - files:
          - targets/nodes-*.yml
          refresh_interval: 1m
              
      - job_name: "mysqld"
        honor_timestamps: true
        scrape_interval: 15s
        scrape_timeout: 10s
        metrics_path: /metrics
        scheme: http
        file_sd_configs:
        - files:
          - targets/mysql-*.yml
          refresh_interval: 1m
      
      - job_name: "process"
        honor_timestamps: true
        scrape_interval: 15s
        scrape_timeout: 10s
        metrics_path: /metrics
        scheme: http
        file_sd_configs:
        - files:
          - targets/process-*.yml
          refresh_interval: 1m
    # 远程查询段
    remote_read:
      # prometheus 
      #- url: http://prometheus/v1/read
      #  read_recent: true
    
      # m3db 
      #- url: "http://m3coordinator-read:7201/api/v1/prom/remote/read"
      #  read_recent: true
    
    # 远程写入段
    remote_write:
      #- url: "http://m3coordinator-write:7201/api/v1/prom/remote/write"
      #  queue_config:
      #    capacity: 10000
      #    max_samples_per_send: 60000
      #  write_relabel_configs:
      #    - source_labels: [__name__]
      #     separator: ;
      #      # 标签key前缀匹配到的drop
      #      regex: '(kubelet_|apiserver_|container_fs_).*'
      #      replacement: $1
      #      action: drop  

    作者:闫世成

    出处:http://cnblogs.com/yanshicheng

    联系:yans121@sina.com

    本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,如有问题或建议,请多多赐教,非常感谢。
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  • 原文地址:https://www.cnblogs.com/yanshicheng/p/15190320.html
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