Prometheus监控容器、pod、邮件告警

Cadvisor 进行收集，通过 Prometheus 作为数据源，利用 Grafana 进行展示。

环境说明：

已做工作可以参考上一篇文章Prometheus、Grafan基于docker部署

主机名	IP	部署功能
master	192.168.143.140	Grafan 容器 Prometheus 容器 node_exporter
node1	192.168.143.141	cadvisor容器 node_exporter

node1主机上 用此命令运行容器google/cadvisor官方镜像

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

[[email protected] ~]# 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

在 master 主机上配置prometheus.yml文件
使prometheus能够接受到node1采集的信息

[[email protected] ~]# 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: ["192.168.143.140:9100"]
  - job_name: "Linux Server"  
    static_configs:                    
      - targets: 
        - 192.168.143.141:9100
        - 192.168.143.142:9100
//新增配置
  - job_name: "cadvisor Service "  
    static_configs:                    
      - targets: ["192.168.143.141:8080"]
 //重启docker，也可以docekr restart   prometheus   
[[email protected] ~]# systemctl restart docker

//master上面查看，监控状态发现有新的节点

//发现原来的模板监控不了，此时添加新的模板

添加新的模板