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Centos 单机部署 Prometheus

·1995 字·4 分钟· ·
Johny
作者
Johny
熟练的 云原生搬砖师
Table of Contents

此文档为归档文件,不保证有效,且供参考

环境说明
#

  • 操作系统: CentOS Linux release 7.9.2009 (Core)
  • Prometheus Version: 2.25.0

Prometheus
#

软件包下载
#

wget https://github.com/prometheus/prometheus/releases/download/v2.25.0/prometheus-2.25.0.linux-amd64.tar.gz


tar xf prometheus-2.25.0.linux-amd64.tar.gz 

mkdir -p /usr/local/prometheus

cp -a prometheus-2.25.0.linux-amd64/* /usr/local/prometheus  # 复制文件到,刚才创建的文件夹下

image-20210309160753537

设置至环境变量内
#

vim /etc/profile
export PATH=/usr/local/prometheus:$PATH   # 添加到 PATH 变量中

source /etc/profile

[root@Myvps ~]# prometheus --version
prometheus, version 2.25.0 (branch: HEAD, revision: a6be548dbc17780d562a39c0e4bd0bd4c00ad6e2)
  build user:       root@615f028225c9
  build date:       20210217-14:17:24
  go version:       go1.15.8
  platform:         linux/amd64

添加为服务启动
#


groupadd -r prometheus && useradd -r -g prometheus -s /sbin/nologin -M prometheus   # 添加 prometheus 专属运行用户

chown -R prometheus:prometheus /usr/local/prometheus/  # 权限赋予给专属用户

touch /usr/lib/systemd/system/prometheus.service \
&& chown prometheus:prometheus /usr/lib/systemd/system/prometheus.service  # 创建服务启动文件


mkdir -p /etc/prometheus/ /var/lib/prometheus

cp -a /usr/local/prometheus/console_libraries/ /usr/local/prometheus/consoles/ /usr/local/prometheus/prometheus.yml  /etc/prometheus/  # copy 配置文件到 配置文件路径下

/usr/local/prometheus/prometheus \
--config.file=/etc/prometheus/prometheus.yml \
--storage.tsdb.path=/var/lib/prometheus \
--web.external-url="http://prometheus.treesir.pub:1800/prometheus" \
--storage.tsdb.retention.time=168h \
--web.enable-lifecycle \
--storage.tsdb.no-lockfile \
--web.route-prefix="/prometheus" \
--web.listen-address="0.0.0.0:19091" \
--web.console.templates=/etc/prometheus/consoles \
--web.console.libraries=/etc/prometheus/console_libraries   # 测试启动

上面示例中,prometheus 监听在 127.0.0.1:9091 之上,外部无法访问 127.0.0.1 地址,且默认 Prometheus 为做任何加密处理。这里演示使用 nginx 虚拟主机配置 代理功能 & 用户密码 实现访问,其他还有很多工具可以实现,这里不多赘述,可以自行 百度 搜索。

yum install httpd-tools -y

htpasswd -c /etc/prometheus/.auth admin # 交互式创建 admin 账号和密码


vim /usr/local/nginx/conf/vhost/prometheus.conf   # nginx 添加 prometheus.conf 虚拟主机配置文件,类容如下所示。
server {
      listen 1800;
      server_name prometheus.treesir.pub;
      charset    utf-8;
      location / {
            auth_basic           "Prometheus";
            auth_basic_user_file /etc/prometheus/.auth;
            proxy_pass       http://127.0.0.1:9091;
         }
}


[root@Myvps ~]# nginx -t
nginx: the configuration file /usr/local/nginx/conf/nginx.conf syntax is ok
nginx: configuration file /usr/local/nginx/conf/nginx.conf test is successful
[root@Myvps ~]# nginx -s reload  # 重载配置
  • 添加至systemctl 服务

    
    chown prometheus:prometheus -R /var/lib/prometheus/
    
    cat > /usr/lib/systemd/system/prometheus.service << EOF
    [Unit]
    Description=Prometheus
    Documentation=https://prometheus.io/
    After=network.target
    
    [Service]
    Type=simple
    User=prometheus
    ExecStart=/usr/local/prometheus/prometheus \
    --config.file=/etc/prometheus/prometheus.yml \
    --storage.tsdb.path=/var/lib/prometheus \
    --web.external-url=http://prometheus.treesir.pub:1800/prometheus \
    --storage.tsdb.retention.time=168h \
    --web.enable-lifecycle \
    --storage.tsdb.no-lockfile \
    --web.route-prefix=/prometheus \
    --web.listen-address=0.0.0.0:19091 \
    --web.console.templates=/etc/prometheus/consoles \
    --web.console.libraries=/etc/prometheus/console_libraries
    Restart=on-failure
    
    [Install]
    WantedBy=multi-user.target
    EOF
    
    systemctl start prometheus && systemctl enable prometheus && systemctl status prometheus
    

删除不必要的标签 参考配置
#

  - job_name: 'docker'
    static_configs:
      - targets: ['192.168.20.172:8080', '192.168.20.173:8080', '192.168.20.174:8080']
    metric_relabel_configs:
      - source_labels: [__name__]
        separator: ','
        regex: '(container_tasks_state|container_memory_failures_total)'
        action: drop

AlertManager 安装部署
#

 #下载地址: https://prometheus.io/download/
wget https://github.com/prometheus/alertmanager/releases/download/v0.17.0/alertmanager-0.17.0.linux-amd64.tar.gz
tar xf alertmanager-0.17.0.linux-amd64.tar.gz
sudo firewall-cmd --zone=public --add-port=9093/tcp --permanent
sudo firewall-cmd --zone=public --add-port=9093/udp --permanent
sudo firewall-cmd --reload

cp alertmanager/{alertmanager,amtool} /usr/local/bin/
mkdir /etc/alertmanager/
cat > /etc/alertmanager/alertmanager.yml << EOF
global:
  smtp_smarthost: 'smtp.163.com'
  smtp_from: 'csheidou@163.com'
  smtp_auth_username: 'csheidou@163.com'
  smtp_auth_password: 'xxxx'
  smtp_require_tls: false

route:
  receiver: 'mail'

receivers:
- name: 'mail'
  email_configs:
  - to: '522181549@qq.com'
EOF
  • Alertmanager 启动

    nohup alertmanager --config.file=/etc/alertmanager/alertmanager.yml --web.external-url=http://hdkj.alertmanager.com >/tmp/alertmanager.log 2>&1 &  #启动 
    
  • 添加为服务自启动

     cat  > /usr/lib/systemd/system/alertmanager.service <<EOF
    [Unit]
    Description=alertmanager
    Documentation=https://github.com/prometheus/alertmanager
    After=network.target
    
    [Service]
    Type=simple
    User=root
    ExecStart=/usr/local/bin/php-fpm-exporter --addr 0.0.0.0:9190 --endpoint http://127.0.0.1:9010/status 
    Restart=on-failure
    
    [Install]
    WantedBy=multi-user.target
    EOF
    
  • prometheus dingtalk webhook

     wget https://github.com/timonwong/prometheus-webhook-dingtalk/releases/download/v1.4.0/prometheus-webhook-dingtalk-1.4.0.linux-amd64.tar.gz
    
     mv prometheus-webhook-dingtalk-1.4.0.linux-amd64 /usr/local/webhook-dingtalk
    
     cat /etc/profile
     export PATH=/usr/local/webhook-dingtalk:$PATH  # 添加到环境变量至 /etc/profile 中永久生效
    
    mkdir -p /etc/webhook-dingtalk   
    cp /usr/local/webhook-dingtalk/config.example.yml /etc/webhook-dingtalk/config.yml # 添加配置文件
    

    image-20210314113423734

    添加自定义机器人, 选择密钥加签

    image-20210314113559950

    image-20210314113623278

将默认配置文件中的,token 替换为刚才生成的 token,如配置了密钥加签还需要将 加签密钥,添加到 secret: 自动中

image-20210314114033365

sed -i "s#xxxxxxxxxxxx#3136d33c12465a58a1#g" /etc/webhook-dingtalk/config.yml 

测试启动

prometheus-webhook-dingtalk \
--web.listen-address="127.0.0.1:8060" \
--web.enable-ui \
--config.file=/etc/webhook-dingtalk/config.yml \
--log.level=info \
--log.format=json

curl http://localhost:8060/dingtalk/webhook1/send \
-H 'Content-Type: application/json' \
-d '{"msgtype": "text",
"text": {
"content": "我就是我, 是不一样的烟火"
}
}'

image-20210314115118455

可以看的,发送消息成功了,只是我们发送的消息 和 alert 模板里面的值不匹配,导致渲染消息没有成功

webhook-dingtalk 配置为服务自启动

 cat  > /usr/lib/systemd/system/webhook-dingtalk.service <<EOF
[Unit]
Description=webhook-dingtalk
Documentation=https://github.com/timonwong/prometheus-webhook-dingtalk
After=network.target

[Service]
Type=simple
User=root
ExecStart=/usr/local/webhook-dingtalk/prometheus-webhook-dingtalk \
--web.listen-address=127.0.0.1:8060 \
--config.file=/etc/webhook-dingtalk/config.yml \
--log.level=info \
--log.format=json

Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

systemctl enable  webhook-dingtalk.service
systemctl start webhook-dingtalk.service
systemctl status webhook-dingtalk.service
  • dingtalk

    cat > /etc/alertmanager/alertmanager.yml << EOF
    global:
      resolve_timeout: 5m
    route:
      receiver: webhook
      group_wait: 30s
      group_interval: 5m
      repeat_interval: 4h
      group_by: [alertname]
      routes:
      - receiver: webhook
        group_wait: 10s
        match:
          team: node
    receivers:
    - name: webhook
      webhook_configs:
      - url: http://127.0.0.1:8060/dingtalk/webhook1/send
        send_resolved: true
    EOF
    

    alertmange 配置服务自启动

    alertmanager \
    --config.file=/etc/alertmanager/alertmanager.yml \
    --web.external-url=http://alertmanager.treesir.pub \
    --web.listen-address="127.0.0.1:9093"
    # 测试启动
    
    
    cat  > /usr/lib/systemd/system/alertmanager.service <<EOF
    [Unit]
    Description=alertmanager
    Documentation=https://github.com/prometheus/alertmanager
    After=network.target
    
    [Service]
    Type=simple
    User=root
    ExecStart=/usr/local/alertmanager/alertmanager \
    --config.file=/etc/alertmanager/alertmanager.yml \
    --web.external-url=http://alertmanager.treesir.pub \
    --web.listen-address=127.0.0.1:9093
    
    Restart=on-failure
    
    [Install]
    WantedBy=multi-user.target
    EOF
    
    systemctl enable  alertmanager.service
    systemctl start alertmanager.service
    systemctl status alertmanager.service
    

配置linux _node_exporter
#

node_exporter --collector.textfile.directory /var/lib/node_exporter/textfile_collector --collector.systemd --collector.systemd.unit-whitelist="(docker|sshd|rsyslog).service" --web.listen-address="0.0.0.0:9600" --web.telemetry-path="/node_metrics" &

node_exporter --web.listen-address="0.0.0.0:9600" &   #指定端口启动



nohup node_exporter --collector.textfile.directory /var/lib/node_exporter/textfile_collector --collector.systemd --collector.systemd.unit-whitelist="(docker|sshd|rsyslog).service" > /tmp/node_exporter.out 2>&1 &          # 监控服务是否运行



node_systemd_unit_state{name="docker.service"}   ## 只查询 docker服务

node_systemd_unit_state{name="docker.service",state="active"}  #返回活动状态
 
node_systemd_unit_state{name="docker.service"} == 1 #返回当前服务的状态

[root@localhost textfile_collector]# cat matadata.prom  
metadata{role="122",datacenter="LOCAL"} 1   #自定义收集文本
[root@localhost textfile_collector]# ll /var/lib/node_exporter/textfile_collector/matadata.prom 
-rw-r--r-- 1 root root 42 6月  12 21:15 /var/lib/node_exporter/textfile_collector/matadata.prom
		--collector.textfile.directory  #指定收集路径

常用公式
#

promtool check config ./prometheus.yml   #检查配置文件是否有错误
100  / ((node_memory_MemTotal_bytes - (node_memory_MemFree_bytes + node_memory_Cached_bytes + node_memory_Buffers_bytes)) / node_memory_MemTotal_bytes * 10)   #内存使用计公式
 
100 - avg (irate (node_cpu_seconds_total{job="内网服务器122",mode="idle"}[5m])) by (instance) * 100  #计算5分钟CPU平均使用
 
(node_filesystem_size_bytes{mountpoint="/"} - node_filesystem_free_bytes{mountpoint="/"}) / 
node_filesystem_size_bytes{mountpoint="/"} * 100  #计算根分区磁盘使用率公式

自定义数据持久查询
#

cd /etc/prometheus && mkdir -p rules
#在prometheus.yml 中添加一下信息
rule_files:
  - "rules/node_alerts.yml"
cat > rules/node_alerts.yml << EOF 
groups:
  - name: node_alerts
    interval: 10s
    rules:
    - record: instance:node_cpu:avg_rate5m
      expr: 100 - avg (irate (node_cpu_seconds_total{mode="idle"}[5m])) by (instance) * 100
      labels:
        metric_tyep: aggregation
    - record: instance:node_memory_usage:percentage
      expr: 100  / ((node_memory_MemTotal_bytes - (node_memory_MemFree_bytes + node_memory_Cached_bytes + node_memory_Buffers_bytes)) / node_memory_MemTotal_bytes * 10) 
    - record: instance:root:node_filesystem_usage:percentage
      expr: (node_filesystem_size_bytes{mountpoint="/"} - node_filesystem_free_bytes{mountpoint="/"}) / node_filesystem_size_bytes{mountpoint="/"} * 100
EOF
/usr/sbin/lsof -n -P -t -i :9090 |xargs kill -HUP    #重启加载配置

服务发现
#

  • 基于文件

     cd /etc/prometheus
     mkdir -pv targets/{linux_nodes,docker_nodes,win_nodes}
    
    
    
    [root@localhost prometheus]# cat prometheus.yml
    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:
          - 192.168.8.131:9093
    
    # Load rules once and periodically evaluate them according to the global 'evaluation_interval'.
    rule_files:
      - "rules/node_alerts.yml"
      # - "second_rules.yml"
    
    # A scrape configuration containing exactly one endpoint to scrape:
    # Here it's Prometheus itself.
    scrape_configs:
      - job_name: 'Prometheus'
        static_configs:
        - targets: ['192.168.8.122:9090']
          labels:
            instance: '192.168.8.122:9090'
    
      - job_name: 'linux_node'
        file_sd_configs:
          - files:
            - targets/linux_nodes/*.json
            refresh_interval: 1m
    
      - job_name: 'docker'
        file_sd_configs:
          - files:
            - targets/docker_nodes/*.json
            refresh_interval: 1m
    
      - job_name: 'win_node'
        file_sd_configs:
          - files:
            - targets/win_nodes/*.json
            refresh_interval: 1m
    
      - job_name: 'alertmanager'
        static_configs:
        - targets: ['192.168.8.131:9093'] 
          labels:
            instance: '192.168.8.131:9093'
    
    [root@localhost prometheus]# cat targets/docker_nodes/docker_nodes.json 
    [{
       "targets": [
       "192.168.8.122:9999",
       "192.168.8.131:9999"
    ]
    }]
    
    
    [root@localhost prometheus]# cat targets/linux_nodes/linux_nodes.json 
    [{
      "targets": [
       "192.168.8.131:9100",
       "192.168.8.122:9100"
    ]
    }]
    
    
    [root@localhost prometheus]# cat targets/win_nodes/yangzun_node.json
    [{
       "targets": [
        "192.168.8.66:9182"
    ]
    }]
    
    [root@localhost prometheus]# promtool check config prometheus.yml
    Checking prometheus.yml
      SUCCESS: 1 rule files found
    
    Checking rules/node_alerts.yml
      SUCCESS: 3 rules found
    
    /usr/sbin/lsof -n -P -t -i :9090 |xargs kill -HUP
    
    
    
    // 也可以使用下面的这种方式(YAML)
    # cat /etc/prometheus/targets/nodes/demo.json
    - targets:
    - "192.168.20.172:8080"
    - "192.168.20.173:8080"
    - "192.168.20.174:8080"
    

alertmanager 设置钉钉告警 参考链接
#

yum install go -y 
mkdir -p /usr/lib/golang/src/github.com/timonwong/
git clone https://github.com/timonwong/prometheus-webhook-dingtalk.git
make 
cp prometheus-webhook-dingtalk /usr/local/bin
 nohup prometheus-webhook-dingtalk --web.listen-address=":8228" --ding.profile="webhook1=https://oapi.dingtalk.com/robot/send?access_token=d4d3069d3ef12a9487ecf878b7611579d8d100e0a82516cc8e80009cbb506ebc"   2>&1 1>/tmp/dingding.log &               #安装钉钉插件并启动 

配置黑盒监控
#

(下载地址)[https://github.com/prometheus/blackbox_exporter]

wget https://github.com/prometheus/blackbox_exporter/releases/download/v0.14.0/blackbox_exporter-0.14.0.linux-amd64.tar.gz
tar xf blackbox_exporter-0.14.0.linux-amd64.tar.gz
mkdir /etc/exporter && cp ./blackbox_exporter-0.14.0.linux-amd64/blackbox_exporter-0.14.0.linux-amd64 /usr/local/bin/
  cp ./blackbox_exporter-0.14.0.linux-amd64/blackbox.yml /etc/exporter/blackbox.yml
nohup blackbox_exporter --config.file="/etc/exporter/blackbox.yml" --web.listen-address=":9115" --log.level=info >/tmp/blackbox.log 2>&1 &  #启动
  • blackbox_exporter 添加至自启动
    #

     cat  > /usr/lib/systemd/system/blackbox_exporter.service <<EOF
    [Unit]
    Description=blackbox_exporter 
    Documentation=https://github.com/prometheus/blackbox_exporter
    After=network.target
    
    [Service]
    Type=simple
    User=root
    ExecStart=/usr/local/bin/blackbox_exporter --config.file=/etc/exporter/blackbox.yml --web.listen-address=192.168.8.122:9115
    Restart=on-failure
    
    [Install]
    WantedBy=multi-user.target
    EOF
    
    systemctl daemon-reload && systemctl start blackbox_exporter && systemctl status blackbox_exporter   #启动
    
    systemctl enable blackbox_exporter  #加入开机自启动
    lsof -i :9115
    
  • docker 启动

    mkdir -p /application/black-box-exporter/config
    
    wget -O /application/black-box-exporter/config/blackbox.yml https://raw.githubusercontent.com/prometheus/blackbox_exporter/master/blackbox.yml
    
    docker run -d \
    -p 9115:9115 --name blackbox_exporter \
    --restart always \
    --net=host \
    -v /application/black-box-exporter/config:/config prom/blackbox-exporter:master \
    --config.file=/config/blackbox.yml \
    --web.external-url=/black-box
    

配置php-fpm_exporter
#


[root@hadoopname ~]# egrep '/ping|/status' /usr/local/php/etc/php-fpm.d/walle.conf 
pm.status_path = /status
ping.path = /ping    #


[root@hadoopname ~]# cat /usr/local/nginx/conf/conf.d/
cobra.conf       jumpserver.conf  official.conf    php_status.conf  walle.conf       zabbix.conf      
[root@hadoopname ~]# cat /usr/local/nginx/conf/conf.d/php_status.conf 
server {
    listen 9010;
    allow 127.0.0.1;
    allow 192.168.8.0/24;
    deny all;

    location ~ ^/(status|ping)$ {
         fastcgi_pass 127.0.0.1:9000;
         fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
         include fastcgi_params;
    }
}

nohup php-fpm-exporter --addr 0.0.0.0:9190 --endpoint http://127.0.0.1:9010/status > /tmp/php-fpm-exporter.log 2>&1 &
sudo firewall-cmd --zone=public --add-port=9190/tcp --permanent
firewall-cmd --reload
  • 添加至systemd服务 及开机自启动
    #

    #添加开机自启动
     cat  > /usr/lib/systemd/system/php-fpm-exporter.service <<EOF
    [Unit]
    Description=php-fpm-exporter
    Documentation=https://github.com/hipages/php-fpm_exporter
    After=network.target
    
    [Service]
    Type=simple
    User=root
    ExecStart=/usr/local/bin/php-fpm-exporter --addr 0.0.0.0:9190 --endpoint http://127.0.0.1:9010/status 
    Restart=on-failure
    
    [Install]
    WantedBy=multi-user.target
    EOF
    
    systemctl daemon-reload && systemctl start php-fpm-exporter && systemctl status php-fpm-exporter
    systemctl enable php-fpm-exporter
    lsof -i :9090
    

win_exporter 安装配置
#

msiexec /i wmi_exporter-0.7.0-amd64.msi ENABLED_COLLECTORS=cpu,cs,logical_disk,net,os,service,system,textfile,memory,tcp LISTEN_PORT=9010

grafana 启动

docker pull grafana/grafana:7.4.3

mkdir -p  /application/grafana/conf


docker run \
-d --rm  --name grafana  -p 3000:3000 \
grafana/grafana grafana

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