Rsync group permission on folder

[pbitzer]

Error: Exit code 23 - rsync: chgrp "/var/www/hamma.dev/public_html/latest/." failed: Operation not permitted (1)

Root Cause:

• The target directory /var/www/hamma.dev/public_html/latest is owned by monitor:html_write (775 permissions)
• The pi user is a member of the html_write group, but does not own the directory
• When rsync runs with -avz (archive mode), it attempts to preserve group ownership on all transferred items including the directory itself (.)
• Non-owners cannot change group ownership on directories, even if they're members of the target group

Impact:

• Files ARE being transferred (rsync continues despite the error)
• The error is specifically about setting metadata on the directory itself, not the files
• Exit code 23 means "some files/attrs were not transferred" - in this case just the directory metadata
• The plugin logs this at INFO level as "Rsync failure" but continues operation