ubuntu – WebDev VirtualBox VM, how to separate and backup

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I currently have a CentOS VM in VirtualBox with 500GB disk file, only 250GB are used.

I’ve started to get errors and the VM hangs indefinitely so I want to start a new Ubuntu VM and I want to keep everything separate to be able to backup things properly.

My initial thought was to install Ubuntu and all software I’ll need, then take a Snapshot.

Then add a second VDI file as a disk for all the projects and data. Hopefully keeping the OS VDI as clean and untouched as possible.

Next how do I keep all projects and testing I do on the VM separate from one another?

I’ve thought about docker but I’ve never used it and I’m not sure how agile development would be, e.g. a Laravel app.

As for backups, would snapshots be enough? I can probably find a 1TB HDD around if needed.

Edit:

Is there any downsides to having one or the other (beside taking more space I guess):

  • Container-webapp-1
  • Container-webapp-2
  • Container-mysql
  • Container-apache

vs

  • Container-webapp-1
  • Container-webapp-2
  • Container-mysql-webapp-1
  • Container-mysql-webapp-2
  • Container-apache (I guess I could split this too but I don’t see why)

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