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Shell脚本-定期删除异常Pod

发表于 更新于
需求

有的Pod重启次数过多

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[cicd-test@ops-jenkins-master ~]$ kubectl get pods |awk '{if ($4 >= 1) print $0 }'
NAME                                            READY   STATUS    RESTARTS   AGE
cmsservice-vcg-com-57974bc4cf-vq6mk             1/1     Running   1          6m18s
edgeservice-vcg-com-755b96fb78-v96s5            1/1     Running   1          3d23h
edgeserviceweb-vcg-com-5655fc9899-8lxql         1/1     Running   1          3d23h
node-visualchina-web-8575cf78dc-8jr2k           1/1     Running   1          4h11m
vdam-gateway-service-6b7d864d67-rdzrg           1/1     Running   1          3h36m
vdam-passport-service-7c97d84b58-xhn6k          1/1     Running   6          3d22h

脚本
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#!/bin/bash

#Author:zhy
#Version:1.0
#Date:20190603
########
#删除重启次数超过5次的POD

set -e

Time=`date +%Y%m%d%H%M%S`

echo $Time >> /home/cicd-pro/cron/k8s_pod_restart.log

if [[ `/usr/local/bin/kubectl --kubeconfig /home/cicd-pro/.kube/config get pods | awk '{if ($4 >= 5)  print $0 }' |grep -v 'NAME' |wc -l` -eq 0 ]];then
  echo '无重启次数超过5次的POD'
  echo '无重启次数超过5次的POD'  >> /home/cicd-pro/cron/k8s_pod_restart.log
else
  echo '将要删除如下pod：'
  echo '将要删除如下pod：' >> /home/cicd-pro/cron/k8s_pod_restart.log
  /usr/local/bin/kubectl --kubeconfig /home/cicd-pro/.kube/config get pods | awk '{if ($4 >= 5)  print $1 }'| grep -v 'NAME'
  echo `/usr/local/bin/kubectl --kubeconfig /home/cicd-pro/.kube/config get pods | awk '{if ($4 >= 5)  print $1 }'| grep -v 'NAME'` >> /home/cicd-pro/cron/k8s_pod_restart.log
  for i in `/usr/local/bin/kubectl --kubeconfig /home/cicd-pro/.kube/config get pods | awk '{if ($4 >= 5)  print $1 }' | grep -v 'NAME'`;
  do
    echo $i
    /usr/local/bin/kubectl --kubeconfig /home/cicd-pro/.kube/config delete pod $i
  done
fi