Cypress hangs when run on Apple Silicon using linux/amd64 and Resetta amd64 emulation

[cgraham-rs]

Cypress fails to run when executed on Apple M-series Mac using amd64 emulation.

Setup

• On any M-series Macb
• Open Docker Desktop Settings > Virtual Machine Options and enable Use Rosetta for x86_64/amd64 emulation on Apple Silicon
• export DOCKER_DEFAULT_PLATFORM=linux/amd64
• Delete any existing Cypress images using docker rmi {imageId} to ensure you pull fresh ones for the defined platform
• Clone cypress-example-kitchensink

Follow the cypress-example-kitchensink instructions linked below.

• cypress/base tests seem to start running but hang Running: 1-getting-started/todo.cy.js (1 of 20)
• cypress/browsers hangs at DevTools listening on ws://127.0.0.1:42305/devtools/browser/8a4057a7-6b88-41f1-bde6-0907871b57fb
• cypress/included hangs at DevTools listening on ws://127.0.0.1:41755/devtools/browser/d36620a0-a3ea-4387-a48b-b3e9e38cc911

Run unset DOCKER_DEFAULT_PLATFORM so we use the arm64 images "Architecture": "arm64", and delete all of the Cypress images to ensure you pull fresh ones for the defined platform

• cypress/base works
• cypress/browsers works
• cypress/included works (note the supplied code specifies chrome which is NOT included in the arm images so make sure to run it with no browser specified)

[MikeMcC399]

@cgraham-rs

Thanks for reporting your experience with emulation!

You describe an issue where Cypress Linux/amd64 Docker images do not run correctly under Rosetta 2 emulation.

Docker Desktop known issues For Mac with Apple silicon describes some related issues and states:

In summary, running Intel-based containers on Arm-based machines should be regarded as "best effort" only.

Since the Cypress Linux/amd64 Docker images are generally working correctly in a native x86_64 / amd64 environment, it is difficult to imagine that there is any scope for the Cypress Docker images to influence how the emulation in an arm64 environment runs.

You may be able to get some assistance in the Docker Desktop for Mac repo or from Docker support if you are eligible. Do however consider the "best effort" statement from Docker above.

[MikeMcC399]

The repo has no scope to resolve the emulation issue reported here.