Docker entrypoint broken in v1.0.0-beta.20

[tomasaschan]

The instructions here don't work for 1.0.0-beta.20:

Expected behavior

$ docker run gcr.io/kpt-dev/kpt:v1.0.0-beta.20 version
1.0.0-beta.20

Actual behavior

$ docker run gcr.io/kpt-dev/kpt:v1.0.0-beta.20 version
exec /usr/local/bin/kpt: no such file or directory

It seems to work as expected on 1.0.0-beta.19:

$ docker run gcr.io/kpt-dev/kpt:v1.0.0-beta.19 version
1.0.0-beta.19

[natasha41575]

@droot As discussed in standup, this is the same error message I got here https://github.com/GoogleContainerTools/kpt/issues/3528#issuecomment-1234631750

[tomasaschan]

@natasha41575 @droot This seems to be fixed in 1.0.0-beta.21

$ docker run gcr.io/kpt-dev/kpt:v1.0.0-beta.21 version
1.0.0-beta.21

[droot]

Thanks for verifying it @tomasaschan