Go 照著 Deep into Container — Build your own container with Golang 這篇教學操作的時候，發現每次結束都需要執行：
sudo mount -t proc proc /proc
上網查之後，發現將 must(syscall.Mount("proc", "proc", "proc", 0, "")) 改為以下程式碼，聲明這個新的 mount namespace 獨立：
must(syscall.Mount("", "/", "", syscall.MS_PRIVATE|syscall.MS_REC, ""))
defualtMountFlags := syscall.MS_NOEXEC | syscall.MS_NOSUID | syscall.MS_NODEV
must(syscall.Mount("proc", "/proc", "proc", uintptr(defualtMountFlags), ""))
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