prometheus之监控process_exporter(lsyncd)

github开源项目:https://github.com/ncabatoff/process-exporter

docker 安装略

配置文件：

# cat /apps/process-exporter/config/process-name.yaml 
process_names:
  - name: "{{.Matches}}"
    cmdline:
    - 'lsyncd'

启动：

docker run -d -p 9256:9256 --privileged -v /proc:/host/proc -v /apps/process-exporter/config:/config ncabatoff/process-exporter --procfs /host/proc -config.path /config/process-name.yaml

访问：

http://127.0.0.1:9256/metrics

报警策略：

# cat rules/rules-lsyncd.yml 
groups:
- name: lsyncd.rules
  rules:
  - alert: lsyncd is down
    expr: namedprocess_namegroup_num_procs{groupname="map[:lsyncd]"} == 0
    for: 5m
    labels:
      severity: critital
      instance: "{{ $labels.instance }}"
      apps: "{{ $labels.apps }}"
    annotations:
      summary: "lsyncd 已关闭"
      description: "lsyncd 已关闭"
      value: "{{ $value }}"