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Skip user creation on reboot when user already exists #10

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Merged
jandubois merged 1 commit into from
Mar 12, 2026
Merged

Skip user creation on reboot when user already exists #10

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33 changes: 18 additions & 15 deletions src/rd-init/userdata.go
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Original file line number Diff line number Diff line change
Expand Up @@ -82,23 +82,26 @@ func LoadUserData(ctx context.Context) ([]string, error) {

// Process users
for _, userEntry := range userData.Users {
// Create user
slog.InfoContext(ctx, "creating user", "user", userEntry.Name)
err = runCommand(ctx, "/usr/sbin/useradd",
"--home-dir", userEntry.HomeDir,
"--create-home",
"--comment", userEntry.GECOS,
"--uid", userEntry.UID,
"--shell", userEntry.Shell,
userEntry.Name)
if err != nil {
return nil, fmt.Errorf("failed to create user %q: %w", userEntry.Name, err)
}

// Look up the newly created user
userInfo, err := user.LookupId(userEntry.UID)
if err != nil {
return nil, fmt.Errorf("failed to look up newly created user %q: %w", userEntry.Name, err)
// User does not exist yet; create it.
slog.InfoContext(ctx, "creating user", "user", userEntry.Name)
err = runCommand(ctx, "/usr/sbin/useradd",
"--home-dir", userEntry.HomeDir,
"--create-home",
"--comment", userEntry.GECOS,
"--uid", userEntry.UID,
"--shell", userEntry.Shell,
userEntry.Name)
if err != nil {
return nil, fmt.Errorf("failed to create user %q: %w", userEntry.Name, err)
}
userInfo, err = user.LookupId(userEntry.UID)
if err != nil {
return nil, fmt.Errorf("failed to look up newly created user %q: %w", userEntry.Name, err)
}
} else {
slog.InfoContext(ctx, "user already exists", "user", userEntry.Name)
}
uid, err := strconv.ParseInt(userInfo.Uid, 10, 32)
if err != nil {
Expand Down