Add mutli-arch Dockerfile

[ameukam]

In order to self-deploy or deploy on the community infrastructure, we need a multi-arch Dockerfile to build OCI images.

Acceptance criteria:

• Ability to build on x86 and Arm 64 platforms.
• Support for Linux only

/sig testing

[ameukam]

/kind feature
/help

[k8s-ci-robot]

@ameukam:
This request has been marked as needing help from a contributor.

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/kind feature
/help

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[manzil-infinity180]

Do we have any existing Dockerfile?

[ameukam]

Do we have any existing Dockerfile?

we are starting from scratch.

[manzil-infinity180]

/assign