Command line options lost when running Percy & Cypress in docker-compose

[CynanX]

Hi,

We run Cypress in a GitLab pipeline, using docker compose to start up various services, along with running Cypress.

I've managed to run Percy and Cypress stand alone, outside of docker compose locally and it seems to works fine. However, when running this inside of docker compose it appears that command line options are lost when being passed to Cypress.

Here is a snipper of my docker compose file which works fine.

cypress:
    image: 116147290797.dkr.ecr.eu-west-1.amazonaws.com/squadihp/build-images:cypress-latest
    network_mode: host
    command: cypress run --browser chrome --group Chrome --ci-build-id ${CI_PIPELINE_ID} --record --parallel --key ${CYPRESS_KEY}

Here is a snipper with Percy that does not work.

cypress:
    image: 116147290797.dkr.ecr.eu-west-1.amazonaws.com/squadihp/build-images:cypress-latest
    network_mode: host
    command: npx percy exec --parallel -- cypress run --browser chrome --group Chrome --ci-build-id ${CI_PIPELINE_ID} --record --parallel --key ${CYPRESS_KEY}

The output is:

cypress-1   | You passed the --ci-build-id, --group, --tag, or --parallel flag without also passing the --record flag.
cypress-1   | 
cypress-1   | The --parallel flag you passed was: true
cypress-1   | 
cypress-1   | These flags can only be used when recording to Cypress Cloud.
cypress-1   | 
cypress-1   | https://on.cypress.io/record-params-without-recording
cypress-1 exited with code 1

The image we are using contains:

FROM cypress/included:11.2.0

RUN mkdir /percy && cd /percy && npm install --save-dev @percy/cli

Thanks.

[itsjwala]

hey @CynanX 👋

• You can try removing --parallel flag, check how Percy run parallel tests.
• You may also try running in verbose mode to debug better.

[CynanX]

Thanks.

So if I remove the parallel options from both Percy and Cypress, it runs.. however, Cypress shows that the browser it's testing against is Electron and not the specified Chrome.

It seems that when I use Percy to run Cypress, command line options are being lost.

[itsjwala]

not sure without a reproducible example, Also does removing --parallel only from percy command works?

[CynanX]

The fix for this is not to use ‘—‘ in the command.

So for anyone running this in docket compose, use:

command: npx percy exec --parallel cypress run --browser chrome --group Chrome --ci-build-id ${CI_PIPELINE_ID} --record --parallel --key ${CYPRESS_KEY}