[ENH] Allow to retry 2nd build_lab phase in case VPN connection was not configured or ansible failed. #1368
Description
I was able to finishing building 1 phase, then without configured wireguard i started building lab (2nd phase). Naturally, ansible was not able to connect to instances and failed in that case web app was showing it's in progress (hang) and it only allows to Abort. Once aborted the only option is to Destroy env, it would be handy if I could retry 2nd phase from UI.
Steps to reproduce:
- complete 1st build phase with web app
- do not configure VPN
- run 2nd build phase with web app