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Prometheus监控容器并邮箱报警

在被监控的主机上拉取google/cadvisor官方镜像

[root@node1 ~]# docker pull google/cadvisor
[root@node1 ~]# docker images|grep cadvisor
google/cadvisor   latest      eb1210707573   3 years ago     69.6MB

在被监控的主机上使用google官方镜像运行cadvisor容器并进行目录及端口映射

[root@node1 ~]# docker run \
>  --volume=/:/rootfs:ro \
>  --volume=/var/run:/var/run:ro \
>  --volume=/sys:/sys:ro \
>  --volume=/var/lib/docker/:/var/lib/docker:ro \
>  --volume=/dev/disk/:/dev/disk:ro \
>  --publish=8080:8080 \
>  --detach=true \
>  --name=cadvisor \
>  --privileged \
>  --device=/dev/kmsg \
>  google/cadvisor
c3262f1a6c2f3862daf414b7d7e6f5a6ff18949a8b4e02c27fea74e481ec038a

[root@node1 ~]# docker ps |grep cadvisor
c3262f1a6c2f   google/cadvisor   "/usr/bin/cadvisor -…"   25 seconds ago   Up 23 seconds   0.0.0.0:8080->8080/tcp, :::8080->8080/tcp   cadvisor

访问测试

在master上修改Prometheus的配置文件

使Prometheus能够接收到cadsvisor采集的信息从而实现对cadvisor所处主机的监控

[root@master ~]# vim /opt/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: ["localhost:9090"]

  - job_name: "Linux Server"
    static_configs:
      - targets: ["192.168.100.120:9100"]
      
  - job_name: "containers"							//添加此处
    static_configs:									//添加此处
      - targets: ["192.168.100.120:8080"]			//添加此处
      
[root@master ~]# docker restart prometheus 
prometheus
[root@master ~]# docker ps |grep prom
f81031397de2   prom/prometheus   "/bin/prometheus --c…"   25 hours ago   Up 8 seconds   0.0.0.0:9090->9090/tcp, :::9090->9090/tcp   prometheus

Prometheus中查看监控情况

进入grafana导入模板11600

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