moby/rootless/rootless.go
Sebastiaan van Stijn c725eff3e2
Add more import comments
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
2019-04-10 16:59:33 +02:00

26 lines
823 B
Go

package rootless // import "github.com/docker/docker/rootless"
import (
"os"
"sync"
)
var (
runningWithNonRootUsername bool
runningWithNonRootUsernameOnce sync.Once
)
// RunningWithNonRootUsername returns true if we $USER is set to a non-root value,
// regardless to the UID/EUID value.
//
// The value of this variable is mostly used for configuring default paths.
// If the value is true, $HOME and $XDG_RUNTIME_DIR should be honored for setting up the default paths.
// If false (not only EUID==0 but also $USER==root), $HOME and $XDG_RUNTIME_DIR should be ignored
// even if we are in a user namespace.
func RunningWithNonRootUsername() bool {
runningWithNonRootUsernameOnce.Do(func() {
u := os.Getenv("USER")
runningWithNonRootUsername = u != "" && u != "root"
})
return runningWithNonRootUsername
}