diff options
Diffstat (limited to 'src/nspawn/nspawn.c')
| -rw-r--r-- | src/nspawn/nspawn.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c index f6f20abdaf..651a45126b 100644 --- a/src/nspawn/nspawn.c +++ b/src/nspawn/nspawn.c @@ -2942,8 +2942,8 @@ int main(int argc, char *argv[]) { if (arg_directory) { assert(!arg_image); - if (path_equal(arg_directory, "/")) { - log_error("Spawning container on root directory not supported."); + if (path_equal(arg_directory, "/") && !arg_ephemeral) { + log_error("Spawning container on root directory is not supported. Consider using --ephemeral."); r = -EINVAL; goto finish; } @@ -2964,7 +2964,21 @@ int main(int argc, char *argv[]) { } else if (arg_ephemeral) { char *np; - r = tempfn_random(arg_directory, &np); + /* If the specified path is a mount point we + * generate the new snapshot immediately + * inside it under a random name. However if + * the specified is not a mount point we + * create the new snapshot in the parent + * directory, just next to it. */ + r = path_is_mount_point(arg_directory, false); + if (r < 0) { + log_error_errno(r, "Failed to determine whether directory %s is mount point: %m", arg_directory); + goto finish; + } + if (r > 0) + r = tempfn_random_child(arg_directory, &np); + else + r = tempfn_random(arg_directory, &np); if (r < 0) { log_error_errno(r, "Failed to generate name for snapshot: %m"); goto finish; |