Discussion: Run Docker on MacOS

[sandipndev]

This issue is to attract comments on what to do with https://github.com/GaloyMoney/galoy-mobile/pull/2971 With this PR, we could do very deterministic e2e testing because we will be able to run Local Backend in CI along with Mac Builds + Detox is more native than Appium.

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Running Docker on MacOS in any CI Containers is quite challenging. There are some workarounds available in some random GitHub comments that seem to work with specific versions of Docker and Mac. Here is a list of the ones I could find and my testing result.

• Script ran inside CircleCI container, didn't work. https://github.com/docker/for-mac/issues/2359#issuecomment-853420567
• Tried running this both on CircleCI and GitHub Actions, didn't work. https://github.com/docker/for-mac/issues/2359#issuecomment-943131345
• Docker OSX - It's OSX on docker unfortunately, not the other way round. https://github.com/sickcodes/Docker-OSX

Related Issues:

1. https://github.com/docker/roadmap/issues/419
2. https://github.com/docker/roadmap/issues/172

People have moved to Self Hosted apparently:

1. https://github.com/tarantool/tt/issues/517

cc @bodymindarts @openoms

[sandipndev]

Possible way forwards:

1. Get a Self Hosted Mac Runner

• PRO: Save alot of $$ in CircleCI
• CON: Parallelism is lost if we have 1 Runner

2. Compromise: E2E against Staging for Mac, E2E against Local Backend for Android

• PRO: Android will surely be deterministic
• CON: iOS might be indeterministic but that's fine IMO

3. Custom Backend Deployment on a GCP hosted machine (using some SSH)

• PRO: Have both pipelines be deterministic

I personally like 3 but willing to look for other's opinions.

[sandipndev]

From discussing after ACE,

Going forward with Scaleway is Option no 1 If nothing works, SSH tunnel is last resort