Add rsync in to the image

[superstar54]

We are testing the AiiDA backup script. In this verdi storage backup command, rsync is needed. Since the backup is very important, I suggest adding it to the image, so that users don't need to install using the root account. As pointed out by @unkcpz, the command will be lost if the image gets updated.

[danielhollas]

@superstar54 just so I understand, the verdi storage backup itself needs rsync? Or do you need rsync to then copy the backup file?

Would you mind sharing the backup script? I needed something similar for our case so would be very interested.

Otherwise, I have no issue with adding rsync to the image (we just need to think about where in the stack it should live, base or lab?)

[superstar54]

Hi @danielhollas , please check this PR by Kristjan, aiidateam/aiida-core#6069

[danielhollas]

Cool, thanks! Makes sense now.

[danielhollas]

I've added rsync as part of #439. So when aiiida-core v2.6 is release we should have a backup support!