Validation fails on devfile 2.0.0 with unknown ephemeral field on volume

[feloy]

/kind bug

Which area this bug is related to?

/area library

What versions of software are you using?

Operating System:

Fedora Linux

Go Pkg Version:

Bug Summary

Describe the bug:

When saving a devfile, the devfile library is adding an ephemeral field to the volume structure on devfile v2.0, but this field is supported starting at v2.1 only.

To Reproduce:

$ odo create nodejs
$ odo storage create vol1
$ odo describe
# works
$ odo storage create vol2
$ odo describe
 ✗  invalid devfile schema. errors :
- components.1.volume: Additional property ephemeral is not allowed

Suggestion on how to fix the bug

The problem seems very similar to #675

[feloy]

CC @anandrkskd for PR redhat-developer/odo#5252

[yangcao77]

This is the boolean value omitempty issue which was resolved by @kim-tsao in 2.2.0. Just need to port over the change from 2.2.0 to 2.1.0 as well. This won't affect any devfile usage, but will affect the api spec. assigning to Kim to take a look.