docker私有仓库和监控及报警环境搭建

一、私有仓库搭建（registry）以172.16.113.12仓库为例

1、下载registry镜像

docker pull registry

2、运行镜像

docker run -d -p 5000:5000 -v /home/registry/:/var/lib/registry/ --name registry registry

3、push镜像

镜像的标签改成仓库地址    docker tag image 172.16.113.12:5000/image

docker push 172.16.113.12:5000/image

4、pull镜像

docker pull 172.16.113.12:5000/image

5、查看仓库镜像

172.16.113.12:5000/v2/_catalog

6、注意事项

docker必须配置--insecure-registry 172.16.113.12:5000，否则会提示连接错误

配置文件目录：/etc/systemd/system/docker.service.d/docker.conf

二、docker监控搭建（prometheus+cadvisor）以172.16.113.12为例

1、下载prometheus镜像

docker pull prom/prometheus

2、下载cadvisor镜像

docker pull google/cadvisor

3、在要监控的docker主机运行cadvisor镜像

docker run -d -v /:/rootfs:ro -v /var/run:/var/run:rw -v /sys:/sys:ro -v /home/lib/docker/:/var/lib/docker:ro -p 8080:8080 --name cadvisor google/cadvisor

4、配置prometheus.yml

global:  scrape_interval: 15s  external_labels:    monitor: 'codelab-monitor'scrape_configs:  - job_name: 'prometheus'    scrape_interval: 5s    static_configs:      - targets: ['172.16.106.6:8080','172.16.106.7:8080','172.16.106.8:8080']

主要是targets，配置的是目标docker的cadvisor地址

5、运行镜像

docker run -d -p 9090:9090 -v /home/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml --name prometheus prom/prometheus

6、查看监控

prometheus    172.16.113.12:9090

cadvisor    172.16.106.6:8080

7、查询语法支持正则过过滤

三、监控报警

1、下载alertmanager镜像

docker pull prom/alertmanager

2、prometheus.yml文件添加报警文件

rule_files:

   - "first.rules"

指定文件为first.rules

3、first.rules添加报警规则

ALERT InstanceStatus

  IF up{job="docker-solr"} == 0

  FOR 10s

  LABELS {

    instance = "",

  }

  ANNOTATIONS {

    summary = "服务器  运行状态",

    description = "服务器  已当机超过 10s"

  }

当job=docker-solr的up值为0，且连续10秒，则触发报警

4、编辑alertmanager的转发配置simple.yml

global:

  resolve_timeout: 1m

route:

  group_by: ['InstanceStatus']

  group_wait: 5s

  group_interval: 10s

  repeat_interval: 1h

  receiver: 'team-X-pager'

receivers:

- name: 'team-X-pager'

  webhook_configs:

  - url: 'http://api.110monitor.com/alert/api/event/prometheus/4702344f-5a25-82b4-5d91-7e3b2e654527'

    send_resolved: true

使用webhook模式，配置报警通过onealert进行转发

5、申请onealert账号，配置prometheus应用，并生成红色的应用ID

6、运行alertmanager镜像

docker run -d -p 9093:9093 -v /home/prometheus/simple.yml:/etc/alertmanager/config.yml --name alertmanager prom/alertmanager

7、重启prometheus镜像

docker restart prometheus