Docker support

A raspiBackup user has written a raspiBackup extension which ensures that all Docker containers are stopped before the backup and finally started again.

The code is available on github

To use the extension, execute following steps:

1. Download the extension

   cd /usr/local/bin
   sudo wget https://raw.githubusercontent.com/framps/raspiBackup/refs/heads/master/extensions_userprovided/raspiBackup_docker_pre.sh
   sudo wget https://raw.githubusercontent.com/framps/raspiBackup/refs/heads/master/extensions_userprovided/raspiBackup_docker_post.sh
   sudo chmod x raspiBackup_docker*.sh
   

2. The extension must then be defined in raspiBackup. To do this, the configuration file /usr/local/etc/raspiBackup.conf must be updated as follows.

   If no extension is active yet, the following definition is sufficient:

   DEFAULT_EXTENSIONS="docker"
   

   Otherwise, docker must be added to the existing extensions.

Note: There should be no commands in the DEFAULT_STOPSERVICES and DEFAULT_STARTSERVICES definitions, that start or stop Docker.