Using Go's os/exec Package to Run External Commands Under Another User
When working in a *nix environment, it is often necessary to run external commands on behalf of another user. Traditionally, this would be accomplished using the "su" or "bash" commands. However, there is a more secure and efficient way to do this using Go's os/exec package.
The key to running external commands as another user is to set the appropriate credentials. This can be done using the syscall.Credential struct.
cmd := exec.Command(command, args...) cmd.SysProcAttr = &syscall.SysProcAttr{} cmd.SysProcAttr.Credential = &syscall.Credential{Uid: uid, Gid: gid}
By setting the Uid and Gid fields of the syscall.Credential struct to the desired user and group IDs, the external command will be run with the appropriate privileges.
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