[BUG] csi pod socket 出现断开，无法平滑升级

[YunhuiChen]

What happened: 执行平滑升级出现：

E1010 08:47:07.515335    2560 grace.go:412] "grace: error connecting to socket" err="dial unix /tmp/juicefs-csi-shutdown.sock: connect: connection refused"
E1010 08:47:07.515385    2560 upgrade.go:42] "main: failed to upgrade mount pod" err="dial unix /tmp/juicefs-csi-shutdown.sock: connect: connection refused"

看到mount pod有日志：

2024/10/10 08:29:21.344859 juicefs[1] <WARNING>: send fd to /tmp/fuse_fd_csi_comm.sock: dial unix /tmp/fuse_fd_csi_comm.sock: connect: no such file or directory [passfd.go:123]

What you expected to happen:

How to reproduce it (as minimally and precisely as possible):

Anything else we need to know?

Environment:

• JuiceFS CSI Driver version (which image tag did your CSI Driver use):
• Kubernetes version (e.g. kubectl version):
• Object storage (cloud provider and region):
• Metadata engine info (version, cloud provider managed or self maintained):
• Network connectivity (JuiceFS to metadata engine, JuiceFS to object storage):
• Others: