Use multi-build to build pytorch-operator image

[hmtai]

Use multi-build to build pytorch-operator image.
See detail: #195

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[k8s-ci-robot]

Hi @hmtai. Thanks for your PR.

I'm waiting for a kubeflow member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[gaocegege]

/ok-to-test

[hmtai]

@googlebot I signed it!

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[coveralls]

Coverage remained the same at 85.281% when pulling cc06855 on hmtai:patch-1 into ca2c9c4 on kubeflow:master.

[hougangliu]

go build cmd/pytorch-operator.v1beta2
go build cmd/pytorch-operator.v1

[hmtai]

Yes,I agree with you:>

[hougangliu]

RUN go build ./cmd/pytorch-operator.v1
RUN go build ./cmd/pytorch-operator.v1beta2

[gaocegege]

Yeah we need ./ here.

[hougangliu]

/lgtm
Thanks @hmtai

[gaocegege]

/lgtm

[gaocegege]

Thanks for your contribution! 🎉 👍

[hmtai]

Yes,if ignore vendor here,during build the image in container it will failed because it can not find the dependency packages.

[gaocegege]

Then LGTM

[johnugeorge]

/approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: johnugeorge

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[johnugeorge]

/retest

[hmtai]

Thanks for your review and comments @johnugeorge @gaocegege
@hougangliu