Refactor backups

[aledbf]

Description

Remove the use of tar and the required steps to remap files.

How to test

• Open a workspace. In the terminal execute:

touch basic
sudo touch root-file
touch executable-file
chmod +x executable-file
touch suid-file
chmod 2555 suid-file
mkdir suid-directory
chmod g+s suid-directory

• Check the output of ls -lat, should be similar to

drwxr-x--- 8 gitpod gitpod 4096 Apr 28 17:31 .
-r-xr-sr-x 1 gitpod gitpod    0 Apr 28 17:31 suid-file
drwxr-sr-x 2 gitpod gitpod    6 Apr 28 17:31 suid-directory
-rwxr-xr-x 1 gitpod gitpod    0 Apr 28 17:30 executable-file
-rw-r--r-- 1 root   root      0 Apr 28 17:30 root-file
-rw-r--r-- 1 gitpod gitpod    0 Apr 28 17:30 basic

• Stop and open the workspace
• Open a terminal and run ls -lat
• Compare the outputs

Release Notes

Refactor backups

[aledbf]

/werft with-vm=true

👎 unknown command: with-vm=true
Use /werft help to list the available commands

[aledbf]

/werft run with-vm=true

👍 started the job as gitpod-build-aledbf-tar.74
(with .werft/ from main)

[csweichel]

works like a charm

[jenting]

LGTM

[jenting]

Is this means we don't support full workspace backup?

[aledbf]

Full workspace backup is a feature that never reached GA. We should revise that once the PVC job is finished.

[Pothulapati]

LGTM!

[mustard-mh]

@aledbf This PR breaks all workspaces that use the go module

because go modules are stored in a strange way, their folder is read-only, This means that we can no longer write to this folder if the folder permissions are set first