1. add s390x support to docker images `executor`, `executor(slim)`,
`executor(debug)` and `warmer`. Fixes#1462 and #1665.
2. Address the building issue of dependency `docker-credential-gcr`
in Dockerfiles. This issue was introduced when recent commits
in `docker-credential-gcr` removed the Makefile.
Signed-off-by: Kun-Lu <kun.lu@ibm.com>
Co-authored-by: Kun-Lu <kun.lu@ibm.com>
gometalinter is broken @ HEAD, and I looked into why that was. During
that process, I remembered that we took the linting scripts from
skaffold, and found that in skaffold gometalinter was replaced with
GolangCI-Lint:
https://github.com/GoogleContainerTools/skaffold/pull/619
The change made linting in skaffold faster, so I figured instead of
fixing gometalinter it made more sense to remove it and replace it with
GolangCI-Lint for kaniko as well.