prometheus部署及钉钉告警集成Grafana

王大雏2023-08-31 23:53

1、准备工作

安装包

📎alertmanager-0.23.0.linux-amd64.tar.gz

📎node_exporter-1.3.1.linux-amd64.tar.gz

📎prometheus-webhook-dingtalk-1.4.0.linux-amd64.tar.gz

服务端口

|-----------------------------|------|
| Prometheus | 9090 |
| node_exporter | 9100 |
| alertmanager | 9093 |
| prometheus-webhook-dingtalk | 8060 |

#修改配置文件之前先备份

复制代码 
systemctl stop firewalld
setenforce 0

2、安装go环境

/usr/local

复制代码 
curl -O https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz  或者   wget -c https://storage.googleapis.com/golang/go1.8.3.linux-amd64.tar.gz
tar -C /usr/local -zxvf go1.8.3.linux-amd64.tar.gz
vim /etc/profile   #修改配置文件
	export PATH=$PATH:/usr/local/go/bin   #文件末添加
source /etc/profile  #保存配置文件
go version  #验证go环境是否安装成功

3、部署prometheus

（1）下载安装Prometheus

/usr/local

复制代码 
curl -O https://blockchain-sre.oss-cn-hangzhou.aliyuncs.com/prometheus-2.31.1.linux-amd64.tar.gz  或者  wget -c https://blockchain-sre.oss-cn-hangzhou.aliyuncs.com/prometheus-2.31.1.linux-amd64.tar.gz
tar -C /usr/local -zxvf prometheus-2.31.1.linux-amd64.tar.gz
cd /usr/local
mv prometheus-2.31.1.linux-amd64 prometheus   #为方便进入目录，修改目录名为prometheus
cd
useradd -M -s /sbin/nologin prometheus
mkdir -p /data/prometheus
chown -R prometheus:prometheus /usr/local/prometheus /data/prometheus    # 修改权限 新增配置文件之后最好也执行一下这步
cd /usr/local/prometheus
mkdir bin
mv promtool bin
vim /etc/profile
	export PATH=$PATH:/sbin:/usr/bin:/usr/sbin
	export PATH=$PATH:/usr/local/go/bin
	export PATH=/usr/local/prometheus/bin:$PATH:$HOME/bin
source /etc/profile

（2）修改配置文件

/usr/local/prometheus/prometheus.yml

复制代码 
cd /usr/local/prometheus
cp prometheus.yml prometheus.yml.bak   #修改配置文件前先进行备份

vim prometheus.yml
修改添加
# 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:
          - localhost: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: ["localhost:9090"]

  - job_name: "node_exporter"
    static_configs:
      - targets: ["172.19.88.86:9100"]

  - job_name: "node2_exporter"
    static_configs:
      - targets: ["localhost:9100"]

  - job_name: "alertmanager"
    static_configs:
      - targets: ["localhost:9093"]

#  - job_name: 'consul'
#    consul_sd_configs:
#      - server:   'localhost:8500'
#        services: ['test']

#  - job_name: 'blackbox'
#    metrics_path: /probe
#    params:
#      module: [http_2xx]  # Look for a HTTP 200 response.
#    file_sd_configs:
#      - refresh_interval: 1m
#        files:
#          - "/usr/local/prometheus/conf/blackbox*.yml"
#    relabel_configs:
#      - source_labels: [__address__]
#        target_label: __param_target
#      - source_labels: [__param_target]
#        target_label: instance
#      - target_label: __address__
#        replacement: localhost:9115   # The blackbox exporter's real hostname:port.

#检查配置文件
promtool check config /usr/local/prometheus/prometheus.yml

（3）配置服务启动脚本

/usr/lib/systemd/system/prometheus.service

复制代码 
cat >> /usr/lib/systemd/system/prometheus.service <<EOF
[Unit]
Description=Prometheus
After=network.target

[Service]
Type=simple
Environment="GOMAXPROCS=4"
User=prometheus
Group=prometheus
ExecReload=/bin/kill -HUP $MAINPID
ExecStart=/usr/local/prometheus/prometheus \
  --config.file=/usr/local/prometheus/prometheus.yml \
  --storage.tsdb.path=/data/prometheus \
  --storage.tsdb.retention=30d \
  --web.console.libraries=/usr/local/prometheus/console_libraries \
  --web.console.templates=/usr/local/prometheus/consoles \
  --web.listen-address=0.0.0.0:9090 \
  --web.read-timeout=5m \
  --web.max-connections=10 \
  --query.max-concurrency=20 \
  --query.timeout=2m \
  --web.enable-lifecycle
PrivateTmp=true
PrivateDevices=true
ProtectHome=true
NoNewPrivileges=true
LimitNOFILE=infinity
ReadWriteDirectories=/data/prometheus
ProtectSystem=full

SyslogIdentifier=prometheus
Restart=always

[Install]
WantedBy=multi-user.target

EOF


#启动服务
systemctl daemon-reload
systemctl enable prometheus
systemctl start prometheus
systemctl status prometheus

netstat -ntlp | grep 9090

#网页访问：localhost:9090  进入prometheus监控界面

4、部署node_exporter

（1）下载安装node_exporter

/usr/local

复制代码 
curl -O https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz 或者 wget -c https://github.com/prometheus/node_exporter/releases/download/v1.3.1/node_exporter-1.3.1.linux-amd64.tar.gz

exit
scp C:\Users\wangdachu\Desktop\node_exporter-1.3.1.linux-amd64.tar.gz [email protected]:/root
Aldaba123!@#
ssh [email protected]

tar -C /usr/local -zxvf node_exporter-1.3.1.linux-amd64.tar.gz
cd /usr/local
mv node_exporter-1.3.1.linux-amd64 node_exporter
chown -R root:root /usr/local/node_exporter

（2）配置服务启动脚本

/usr/lib/systemd/system/node_exporter.service

复制代码 
cat >> /usr/lib/systemd/system/node_exporter.service <<EOF
[Unit]
Description=node_exporter
After=network.target

[Service]
Type=simple
User=root
Group=root
ExecStart=/usr/local/node_exporter/node_exporter \
  --collector.textfile.directory=/var/lib/node_exporter/textfile_collector
  --web.listen-address=0.0.0.0:9100 \
  --web.telemetry-path=/metrics \
  --log.level=info \
  --log.format=logfmt
Restart=always

[Install]
WantedBy=multi-user.target

EOF


#启动服务
systemctl daemon-reload
systemctl enable node_exporter
systemctl start node_exporter
systemctl status node_exporter

netstat -ntlp | grep 9100

#网页访问：localhost:9100

（3）被监控主机安装node_exporter及配置服务启动脚本

/usr/lib/systemd/system/node_exporter.service

复制代码 
tar -C /usr/local -zxvf node_exporter-1.3.1.linux-amd64.tar.gz
cd /usr/local
mv node_exporter-1.3.1.linux-amd64 node_exporter
chown -R prometheus:prometheus /usr/local/node_exporter

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

[Service]
Type=simple
User=prometheus
ExecStart=/usr/local/node_exporter/node_exporter --collector.textfile.directory=/var/lib/node_exporter/textfile_collector   #指定数据采集的路径
Restart=on-failure
[Install]
WantedBy=multi-user.target
EOF

#启动服务
systemctl daemon-reload
systemctl enable node_exporter
systemctl start node_exporter
systemctl status node_exporter

netstat -ntlp | grep 9100

#网页访问：被监控主机IP:9100

#localhost:9090进入监控界面 -> Graph -> 键入up -> Execute  查看监控状态

5、配置定时任务（采集目录）

复制代码 
cd /var/lib
mkdir -p node_exproter/textfile_collector
vim /etc/cron.d/directory_size
*/5 * * * * root du -sb /var/log /var/cache/apt /var/lib/prometheus | sed -ne 's/^\([0-9]\+\)\t\(.*\)$/node_directory_size_bytes{directory="\2"} \1/p' > /var/lib/node_exporter/textfile_collector/directory_size.prom.$$ && mv /var/lib/node_exporter/textfile_collector/directory_size.prom.$$ /var/lib/node_exporter/textfile_collector/directory_size.prom

crontab -u root /etc/cron.d/directory_size
crontab -l

修改node_exporter自启动脚本
cat /usr/lib/systemd/system/node_exporter.service
[Unit]
Description=node_export
Documentation=https://github.com/prometheus/node_exporter
After=network.target

[Service]
Type=simple
User=prometheus
ExecStart=/usr/local/node_exporter/node_exporter --collector.textfile.directory=/var/lib/node_exporter/textfile_collector   #指定路径
Restart=on-failure
[Install]
WantedBy=multi-user.target

表达式：node_directory_size_bytes{directory="/var/lib/prometheus"}
查看监控图形

6、部署alertmanager

（1）下载安装alertmanager

/usr/local

复制代码 
curl -O https://github.com/prometheus/alertmanager/releases/download/v0.23.0/alertmanager-0.23.0.linux-amd64.tar.gz 或者 wget -c https://github.com/prometheus/alertmanager/releases/download/v0.23.0/alertmanager-0.23.0.linux-amd64.tar.gz
tar -C /usr/local -zxvf alertmanager-0.23.0.linux-amd64.tar.gz
mv alertmanager-0.23.0.linux-amd64 alertmanager
mkdir /usr/local/alertmanager/data
chown -R prometheus:prometheus /usr/local/alertmanager

（2）修改配置文件

/usr/local/alertmanager/alertmanager.yml

复制代码 
cp alertmanager.yml alertmanager.yml.bak   #备份配置文件

# 全局配置项
global:
  resolve_timeout: 5m # 处理超时时间，默认为5min

# 定义路由树信息
route:
  group_by: [alertname]  # 报警分组依据
  receiver: ops_notify   # 设置默认接收人
  group_wait: 30s        # 最初即第一次等待多久时间发送一组警报的通知
  group_interval: 60s    # 在发送新警报前的等待时间
  repeat_interval: 1h    # 重复发送告警时间。默认1h
  routes:

  - receiver: ops_notify  # 基础告警通知
    group_wait: 10s
    match_re:
      alertname: 实例存活告警|磁盘使用率告警   # 匹配告警规则中的名称发送

  - receiver: info_notify  # 消息告警通知
    group_wait: 10s
    match_re:
      alertname: 内存使用率告警|CPU使用率告警

# 定义基础告警接收者
receivers:
- name: ops_notify
  webhook_configs:
  - url: http://localhost:8060/dingtalk/webhook2/send        #prometheus-webhook-dingtalk的url地址
    send_resolved: true  # 警报被解决之后是否通知

# 定义消息告警接收者
- name: info_notify
  webhook_configs:
  - url: http://localhost:8060/dingtalk/webhook2/send          #prometheus-webhook-dingtalk的url地址
    send_resolved: true

# 一个inhibition规则是在与另一组匹配器匹配的警报存在的条件下，使匹配一组匹配器的警报失效的规则。两个警报必须具有一组相同的标签。
inhibit_rules:
  - source_match:
      severity: 'critical'
    target_match:
      severity: 'warning'
    equal: ['alertname', 'dev', 'instance']

（3）配置服务启动脚本

/usr/lib/systemd/system/alertmanager.service

复制代码 
cat >> /usr/lib/systemd/system/alertmanager.service <<EOF
[Unit]
Description=Prometheus: the alerting system
Documentation=http://prometheus.io/docs/
After=prometheus.service

[Service]
ExecStart=/usr/local/alertmanager/alertmanager --config.file=/usr/local/alertmanager/alertmanager.yml
Restart=always
StartLimitInterval=0
RestartSec=10

[Install]
WantedBy=multi-user.target
EOF

#启动服务
systemctl daemon-reload && systemctl enable alertmanager && systemctl start alertmanager
systemctl status alertmanager

netstat -natp | grep alertmanager

#网页：localhost:9093

7、部署prometheus-webhook-dingtalk

（1）下载安装prometheus-webhook-dingtalk

/usr/local

复制代码 
curl -O https://github.com/timonwong/prometheus-webhook-dingtalk/releases/download/v2.0.0/prometheus-webhook-dingtalk-2.0.0.linux-amd64.tar.gz 或者 wget -c https://github.com/timonwong/prometheus-webhook-dingtalk/releases/download/v2.0.0/prometheus-webhook-dingtalk-2.0.0.linux-amd64.tar.gz
tar -C /usr/local -zxvf prometheus-webhook-dingtalk-2.0.0.linux-amd64.tar.gz
mv prometheus-webhook-dingtalk-2.0.0.linux-amd64 prometheus-webhook-dingtalk

1\#修改配置文件     /usr/local/prometheus-webhook-dingtalk/config.yml
cp config.yml config.yml.bak

targets:
  webhook2:
    url: https://oapi.dingtalk.com/robot/send?access_token=cec57e121cf51ffdcf108ac9218bb01591826ab16b535928b6a860c87eebc9e6        #修改url为钉钉机器人的token ，机器人的webhook地址
    # secret for signature
    secret: SEC000000000000000000000

剩余注释#到message

（2）配置服务启动脚本

/usr/lib/systemd/system/prometheus-webhook-dingtalk.service

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

[Service]
Type=simple
User=root
PIDFile=/var/run/prometheus-webhook-dingtalk.pid
ExecStart=/usr/local/prometheus-webhook-dingtalk/prometheus-webhook-dingtalk \
      --web.listen-address=:8060 \
          --web.enable-lifecycle \
          --web.enable-ui \
          --config.file=/usr/local/prometheus-webhook-dingtalk/config.yml
Restart=on-failure

[Install]
WantedBy=multi-user.target
EOF

systemctl daemon-reload && systemctl enable prometheus-webhook-dingtalk && systemctl start prometheus-webhook-dingtalk
systemctl status prometheus-webhook-dingtalk

netstat -natp | grep 8060

8、命令行测试机器人发送消息，验证是否可以发送成功

复制代码 
curl -H "Content-Type: application/json" -d '{"msgtype":"text","text":{"content":"prometheus alert test"}}' https://oapi.dingtalk.com/robot/send?access_token=cec57e121cf51ffdcf108ac9218bb01591826ab16b535928b6a860c87eebc9e6
#修改url为钉钉机器人的token ，机器人的webhook地址
curl -H "Content-Type: application/json" -d '{"msgtype":"text","text":{"content":"prometheus alert test"}}' https://oapi.dingtalk.com/robot/send?access_token=72405a3c5684584a2a13447cc58977fb34ae9c10e060696ef228c6daed1b6f61

查看prometheus-webhook-dingtalk的url地址，altermanager会将通知像这个地址发送
journalctl -u prometheus-webhook-dingtalk -f

可以看到url    urls=http://localhost:8060/dingtalk/webhook1/send

9、配置告警规则

/usr/local/prometheus/first_rules.yml

复制代码 
cat >> /usr/local/prometheus/first_rules.yml << EOF
groups:
# 实例存活报警
- name: 实例存活告警规则
  rules:
  - alert: 实例存活告警
    expr: up == 0
    for: 1m
    labels:
      user: prometheus
      severity: warning
    annotations:
      description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 1 minutes."

# mem报警
- name: 内存报警规则
  rules:
  - alert: 内存使用率告警
    expr: (node_memory_MemTotal_bytes - (node_memory_MemFree_bytes+node_memory_Buffers_bytes+node_memory_Cached_bytes )) / node_memory_MemTotal_bytes * 100 > 80
    for: 1m
    labels:
      user: prometheus
      severity: warning
    annotations:
      description: "服务器: 内存使用超过80%！(当前值: {{ $value }}%)"


# disk报警
- name: 磁盘报警规则
  rules:
  - alert: 磁盘使用率告警
    expr: (node_filesystem_size_bytes - node_filesystem_avail_bytes) / node_filesystem_size_bytes * 100 > 30
    for: 1m
    labels:
      user: prometheus
      severity: warning
    annotations:
      description: "服务器: 磁盘设备: 使用超过30%！(挂载点: {{ $labels.mountpoint }} 当前值: {{ $value }}%)"


# cpu报警
- name: CPU报警规则
  rules:
  - alert: CPU使用率告警
    expr: 100 - (avg by (instance)(irate(node_cpu_seconds_total{mode="idle"}[1m]) )) * 100 > 30
    for: 1m
    labels:
      user: prometheus
      severity: warning
    annotations:
      description: "服务器: CPU使用超过30%！(当前值: {{ $value }}%)"

#目录大小告警（复制前面规则不会出错）
- name: 目录报警规则
  rules:
  - alert:目录大小告警
    expr: node_directory_size_bytes > 10
    for: 1m
    labels:
      user: prometheus
      severity: warning
    annotations:
      description: "服务器: 目录大小超过0！(当前值: {{ $value }})"
EOF


#检查规则配置文件语法是否正确
promtool check rules /usr/local/prometheus/first_rules.yml

10、告警规则模板

/usr/local/prometheus-webhook-dingtalk/contrib/templates/legacy/template.tmpl

11、部署grafana

（1）下载安装grafana

复制代码 
cd prometheus-1/
curl -O https://dl.grafana.com/oss/release/grafana-7.1.3.linux-amd64.tar.gz 或者 wget -c https://dl.grafana.com/oss/release/grafana-7.1.3.linux-amd64.tar.gz
tar -C /usr/local -zxvf grafana-7.1.3.linux-amd64.tar.gz
mv grafana-7.1.3 grafana
mkdir /usr/local/grafana/{data,log}
chown -R prometheus:prometheus /usr/local/grafana

（2）修改配置文件、

/usr/local/grafana/conf/

复制代码 
cd /usr/local/grafana/conf/
cp defaults.ini grafana.ini

vim grafana.ini
	# logs = data/log
	logs = log

（3）配置服务启动脚本

/usr/lib/systemd/system/grafana-server.service

复制代码 
cat >> /usr/lib/systemd/system/grafana-server.service <<EOF
[Unit]
Description=Grafana instance
Documentation=http://docs.grafana.org
Wants=network-online.target
After=network-online.target
After=postgresql.service mariadb.service mysqld.service

[Service]
Type=simple
User=prometheus
Group=prometheus
WorkingDirectory=/usr/local/grafana
ExecStart=/usr/local/grafana/bin/grafana-server \
    --config=/usr/local/grafana/conf/grafana.ini \
    --pidfile=/usr/local/grafana/grafana-server.pid

Restart=on-failure
LimitNOFILE=10000
TimeoutStopSec=20

[Install]
WantedBy=multi-user.target
EOF	

systemctl daemon-reload && systemctl enable grafana-server && systemctl start grafana-server
systemctl status grafana-server
netstat -ntlp | grep 3000

网页访问：139.224.12.165:3000
默认账号/密码：admin/admin


URL：http://139.224.12.165:9090
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