diff options
Diffstat (limited to 'pkg')
| -rw-r--r-- | pkg/rootless/rootless_linux.go | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/pkg/rootless/rootless_linux.go b/pkg/rootless/rootless_linux.go index 5c45f2694..85b0ef392 100644 --- a/pkg/rootless/rootless_linux.go +++ b/pkg/rootless/rootless_linux.go @@ -12,6 +12,7 @@ import ( "runtime" "strconv" "strings" + "sync" "syscall" "unsafe" @@ -33,9 +34,17 @@ func runInUser() error { return nil } +var ( + isRootlessOnce sync.Once + isRootless bool +) + // IsRootless tells us if we are running in rootless mode func IsRootless() bool { - return os.Geteuid() != 0 || os.Getenv("_LIBPOD_USERNS_CONFIGURED") != "" + isRootlessOnce.Do(func() { + isRootless = os.Geteuid() != 0 || os.Getenv("_LIBPOD_USERNS_CONFIGURED") != "" + }) + return isRootless } var ( @@ -187,6 +196,9 @@ func BecomeRootInUserNS() (bool, int, error) { if username == "" { user, err := user.LookupId(fmt.Sprintf("%d", os.Getuid())) if err != nil && os.Getenv("PODMAN_ALLOW_SINGLE_ID_MAPPING_IN_USERNS") == "" { + if os.IsNotExist(err) { + return false, 0, errors.Wrapf(err, "/etc/subuid or /etc/subgid does not exist, see subuid/subgid man pages for information on these files") + } return false, 0, errors.Wrapf(err, "could not find user by UID nor USER env was set") } if err == nil { |