A Complete Flow for containenv init on an extant project needs to be implemented.

[zancas]

So, the project is already there... containenv should have explicit tools that manipulate state in this case. e.g. Maybe you know that the new ubuntu from image is different in some desirable way. Perhaps containenv should provide a convenience flag to allow you to force a rebuild.

This process will be more natural once containenv init is broken into natural constituents:
containenv init write_config and containenv init build and containenv init publish perhaps?