[pbs-devel] [PATCH proxmox-backup] datastore: chown base dir on creation

[Stoiko Ivanov]

When creating a new datastore the basedir is only owned by the backup
user if it did not exist beforehand (create_path chowns only if it
creates the directory), and returns false if it did not create the
directory).

This improves the experience when adding a new datastore on a fresh
disk or existing directory (not owned by backup) - backups/pulls can
be run instead of terminating with EPERM.

Tested on my local testinstall with a new disk, and a existing directory:

Signed-off-by: Stoiko Ivanov <s.ivanov at proxmox.com>
---
 src/backup/chunk_store.rs | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/backup/chunk_store.rs b/src/backup/chunk_store.rs
index d21c232d..87000630 100644
--- a/src/backup/chunk_store.rs
+++ b/src/backup/chunk_store.rs
@@ -80,8 +80,9 @@ impl ChunkStore {
 
         let default_options = CreateOptions::new();
 
-        if let Err(err) = create_path(&base, Some(default_options.clone()), Some(options.clone())) {
-            bail!("unable to create chunk store '{}' at {:?} - {}", name, base, err);
+        match create_path(&base, Some(default_options.clone()), Some(options.clone())) {
+            Err(err) => bail!("unable to create chunk store '{}' at {:?} - {}", name, base, err),
+            Ok(res) => if ! res  { nix::unistd::chown(&base, Some(uid), Some(gid))? },
         }
 
         if let Err(err) = create_dir(&chunk_dir, options.clone()) {
-- 
2.20.1