Update cyclonus makefile to figure out cpu arch

[olivercodes]

@mattfenwick @astoycos - I realize you might want to take a different approach with this (such as the tag), so no worries if you want to post back with other modifications we should add to cyclonus build/publish. I updated it whilst working on the ANP conformance tests setup (on my m1).

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[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: olivercodes
Once this PR has been reviewed and has the lgtm label, please assign mattfenwick for approval by writing /assign @mattfenwick in a comment. For more information see the Kubernetes Code Review Process.

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Needs approval from an approver in each of these files:

• cmd/cyclonus/OWNERS

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[k8s-ci-robot]

Hi @olivercodes. Thanks for your PR.

I'm waiting for a kubernetes-sigs 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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[astoycos]

/ok-to-test

[mattfenwick]

hi @olivercodes thanks for putting this together !

( btw even though I'm listed as an approver ? , I shouldn't have final say on what does and doesn't go into this repo now that it's been upstreamed cc @astoycos , should somebody else get added to reviewers ? ) edit: nvm, looks like anybody in here can also approve

it's been a while and I'm not even sure if the makefile was used , check out https://github.com/kubernetes-sigs/network-policy-api/blob/master/cmd/cyclonus/.goreleaser.yml which I used for releases ... also please note that lots of things haven't been changed yet -- things that can't work in this repo -- like pushing images to my personal dockerhub account 😄

• spin off issue: how should builds be handled long term , cc @astoycos

I don't 100% understand the goal of this change, if you wouldn't mind dropping a couple lines of motivation/goal it'll help me to understand what/why/how !

[olivercodes]

@mattfenwick:

Totally understandable. I was actually hoping to get more information like what you just posted! So this is a good start.

I had 2 goals with the change:

1. get a short convo going around long-term support/maintenance for cyclonus itself. I was also thinking to update the Cyclonus build process (for long-term needs as you mentioned) whilst updating and working on the conformance tests for ANP, but didn't want to do anything there without some guidance on requirements in doing so.
2. If it's useful, updating the makefile for the (probably very small number of) people that want do do local builds on a different architecture. But we could also remove it in preference of a basic readme build command like you have in the developer setup documentation.

[kundan2707]

/lgtm

[olivercodes]

Closing in favor of #62