complete backup and restore of /data

[NubeDev]

We need to have a way for the user to back up and restore the whole device

The are 2x use cause

1. user takes a zip backup and 1 year later the device breaks and they want a complete restore of all the device info and uuids
2. user takes a backup of device-a and wants to save it in device-b as they are both the same application, but we need to keep the device info as in its wires-plat info. this will mean that the all the network and device UUIDs will be the same

option 2 is actually the more common use case. its needed a lot to save time for people

[RaiBnod]

Scope of work

• To snapshot the all apps and data

Backup

• Dump all /data as data
• Dump all /lib/systemd/system/nubeio-* as system
  • Here is an example: https://github.com/NubeIO/k8s-nubeio-suite-customer/blob/master/templates/rubix/nubeio-rubix-deployment.yaml#L82-L89 (exclude OpenVPN)
• Create a <client_name>-<site_name>-<device_name>_<ISO timestring>.zip file (snapshot) with those above two files
• Have an API to do this, which will respond that the .zip snapshot
  • It will get called from rubix-assist < rubix-ui

Restore

• Have an API to accept the .zip snapshot (add flag use_global_uuid=<bool>, default is false)
• Restore data to /data, replace all in case of already file existence
  • If use_global_uuid=false then, edit /data/rubix-registry/device_info.json and make global_uuid as empty string ("")
• Restore system files to /lib/systemd/system/
• Enable and restart all the apps
  • Here is an example: https://github.com/NubeIO/k8s-nubeio-suite-customer/blob/master/templates/rubix/nubeio-rubix-deployment.yaml#L70-L75