Creating a custom kaniko image using a multi-stage Dockerfile fails

[markusmauch]

Actual behavior
Creating a custom kaniko image using the following multi-stage Dockerfile fails:

FROM gcr.io/kaniko-project/executor:latest as kaniko
FROM alpine:latest as alpine
COPY --from=kaniko /kaniko/.config /kaniko/.config
COPY --from=kaniko /kaniko/.docker /kaniko/.docker
COPY --from=kaniko /kaniko/executor /kaniko/executor
COPY --from=kaniko /kaniko/ssl /kaniko/ssl
COPY --from=kaniko /kaniko/warmer /kaniko/warmer

Error message: Unpacking rootfs as cmd COPY --from=kaniko /kaniko/.config /kaniko/.config requires it.
error building image: error building stage: failed to get files used from context: failed to get fileinfo for /kaniko/0/kaniko/.config: lstat /kaniko/0/kaniko/.config: no such file or directory

Expected behavior
it should not fail

To Reproduce
Start a kaniko build with the above Dockerfile.

Additional Information

• Kaniko Image: gcr.io/kaniko-project/executor:latest

Description	Yes/No
Please check if this a new feature you are proposing	no
Please check if the build works in docker but not in kaniko	yes
Please check if this error is seen when you use --cache flag	yes
Please check if your dockerfile is a multistage dockerfile	yes