As reported in the community forum [0], for tar, an exclusion pattern with a trailing slash will not match a folder with that name. For rsync and proxmox-backup-client however, such a pattern will exclude a directory with that name, but not a file.
rsync is used for 'suspend' mode backup and tar is used for all non-PBS backups to create the archive. So currently, in the presence of an exclusion pattern with a trailing slash, there is inconsistency between different backup modes (because for 'suspend' mode, rsync will already do the exclusion too) as well as between PBS and non-PBS backups. There doesn't seem to be a straight-forward way to align the behavior for tar with command-line options exactly. The trailing slash can't be removed from the pattern, because that would also match files. Matching with > some/pattern/* > some/pattern/.* rather than > some/pattern/ gets pretty close, which was suggested by Dominik. Just the empty directory is still included. In any case, modifying current behavior would be a breaking change, so actually aligning the exclusion (more closely) is better done in the next major release. Signed-off-by: Fiona Ebner <f.eb...@proxmox.com> --- vzdump.adoc | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/vzdump.adoc b/vzdump.adoc index 79d4bbc..3918e9a 100644 --- a/vzdump.adoc +++ b/vzdump.adoc @@ -578,6 +578,12 @@ You can also manually specify (additional) exclude paths, for example: excludes the directory `/tmp/` and any file or directory named `/var/foo`, `/var/foobar`, and so on. +WARNING: For backups to Proxmox Backup Server (PBS) and `suspend` mode backups, +patterns with a trailing slash will match directories, but not files. On the +other hand, for non-PBS `snapshot` mode and `stop` mode backups, patterns with a +trailing slash currently do not match at all, because the `tar` command does not +support that. + Paths that do not start with a `/` are not anchored to the container's root, but will match relative to any subdirectory. For example: -- 2.39.2 _______________________________________________ pve-devel mailing list pve-devel@lists.proxmox.com https://lists.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
