k8s pod "mount： permission denied (are you root?)"

k8s pod 中想要运行可以使pod内存自增的脚本

#!/bin/bash
mkdir -p /tmp/skyfans/memory
mount -t tmpfs -o size=10240M tmpfs /tmp/skyfans/memory
dd if=/dev/zero of=/tmp/skyfans/memory/block
sleep 60
rm /tmp/skyfans/memory/block
umount /tmp/skyfans/memory
rmdir /tmp/skyfans/memory

结果在mount 挂载的时候报错

1	mount: permission denied (are you root?)

简单修改pod权限即可

spec:
  containers:
  - securityContext:
      capabilities:
        add: ["SYS_ADMIN"]

参考文档：

https://blog.csdn.net/xzm5708796/article/details/90143416

https://cloud.tencent.com/developer/ask/sof/876479