k8s资源备份脚本

备份所有命名空间

#!/bin/sh
for ns in $(kubectl  get ns | awk '{print $1}'|grep -v NAME);do
result_get=$(kubectl get -o=name pvc,configmap,serviceaccount,secret,ingress,service,deployment,statefulset,hpa,job,cronjob,DaemonSet -n $ns)
    for n in $result_get; do
        mkdir -p `date +%Y%m%d-$ns`/$(dirname $n)
        kubectl get -o=yaml $n -n  $ns > `date +%Y%m%d-$ns`/$n.yaml
        rm -rf `date -d "-60 day" +%Y%m%d-$ns`
    done
done

计划任务

加入计划任务 每天2点进行资源备份

  echo " * 2 * * *   /usr/bin/sh  /opt/k8sbak.sh "  >>  /var/spool/cron/root

备份结果查看

查找我们想要的yaml

例如calico

[root@zcsmaster1 opt]# cd 20221220-kube-system
[root@zcsmaster1 20221220-kube-system]# ls -lrt */*|grep -i calico

想要备份一个命名空间也可以

k8s 资源备份（ccse空间）及查看

#!/bin/sh
result_get=`kubectl get -o=name pvc,configmap,serviceaccount,secret,ingress,service,deployment,statefulset,hpa,job,cronjob -n develop`
for n in $result_get; do
    mkdir -p `date +%Y%m%d`/$(dirname $n)
    kubectl get -o=yaml $n -n ccse > `date +%Y%m%d`/$n.yaml
done
rm -rf `date -d "-60 day" +%Y%m%d`