update the makefile to push multi-arch images

[danbf]

Problem

current sso images don't support arm64 architecture. that means we can't run them on AWS Graviton's or Apple M1's

Solution

build a multi-arch with linux/amd64,linux/arm64 platform support

Notes

based on https://www.docker.com/blog/multi-arch-images/ and https://www.docker.com/blog/multi-arch-build-what-about-circleci/
our upstream, golang:1.14 supports these architectures and more

[codecov]

Codecov Report

Merging #319 (a135d77) into main (a1b1b74) will increase coverage by 0.22%.
The diff coverage is n/a.

❗ Current head a135d77 differs from pull request most recent head 171ce40. Consider uploading reports for the commit 171ce40 to get more accurate results

@@            Coverage Diff             @@
##             main     #319      +/-   ##
==========================================
+ Coverage   62.73%   62.96%   +0.22%     
==========================================
  Files          58       58              
  Lines        4286     4760     +474     
==========================================
+ Hits         2689     2997     +308     
- Misses       1382     1546     +164     
- Partials      215      217       +2     

Impacted Files	Coverage Δ
internal/auth/providers/group_cache.go	57.14% <0.00%> (-11.28%)	⬇️
internal/auth/logging_handler.go	28.12% <0.00%> (-2.07%)	⬇️
internal/proxy/logging_handler.go	14.75% <0.00%> (-1.58%)	⬇️
internal/pkg/httpserver/httpserver.go	66.66% <0.00%> (-1.20%)	⬇️
internal/auth/providers/google.go	58.49% <0.00%> (-0.66%)	⬇️
internal/auth/error.go	72.22% <0.00%> (-0.51%)	⬇️
internal/auth/mux.go	74.54% <0.00%> (-0.46%)	⬇️
internal/proxy/templates.go	100.00% <0.00%> (ø)
internal/pkg/aead/mock_cipher.go	0.00% <0.00%> (ø)
internal/pkg/groups/mock_cache.go	0.00% <0.00%> (ø)
... and 46 more

---

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[danbf]

seems to be working

[danbf]

will test tomorrow to ensure they actually run on the platforms

[danbf]

ok got it running in stage and it seems fine, both sso_proxy and sso_auth

[danbf]

this was needed for the builds to complete. seems like the file locations are in different spots on the ARM arch.

[Jusshersmith]

👍 Would it be worth adding this in a quick inline comment?

[danbf]

if this remains, yes. i want to test the resultant multi-arch images in a arm64 cluster before finalizing this. i only got to test it once during hackweek before tearing down the temp cluster.

[danbf]

i'm going to see if we need this for arm64, which is the primary secondary target we want for M1's and Graviton's

[danbf]

that didn't work, these are needed for arm64 also apparently.

[Jusshersmith]

I think we might also want to push a buzzfeed/sso:latest tag. I'm also not particularly sure we really need the buzzfeed/sso-dev:latest tag to be honest. That tag should be created with each push to the main branch (through this logic), so I'm not sure we gain anything with it being here as well.

[danbf]

thanks, this was a typo, should have been buzzfeed/sso:latest. fixing it.