fix incorrect /data ownership

Author: yhabteab

Containerfile

@@ -167,6 +167,10 @@ RUN for dir in /etc/icinga2 /var/cache/icinga2 /var/lib/icinga2 /var/log/icinga2
     ln -vs "/data$dir" "$dir"; \
 done
 
+# The below prepare-dirs script will not fix any permissions issues for the actuall /var/lib/icinga2 or
+# /var/etc/icinga2 directories, so we need to set the correct ownership for the /data directory recursively.
+RUN chown -R icinga:icinga /data
+
 # Run the prepare-dirs script to create non-existing directories and set the correct permissions for them.
 # It's invoked in the same way as in the systemd unit file in a Debian package, so this will ensure that
 # all the necessary directories are created with the correct permissions and ownership.