After a break using AWS Macs for CI we are willing to give Xcode cloud another go. Unfortunately we are unable to complete the "Grant Access to your Source Code" step.
We tried multiple accounts including maintainer, owner and admin. We tried from multiple Macs and versions of macOS.
"Connecting Xcode Cloud with your source control provider was incomplete. 503 Service Unavailable. Please ensure that your repository is available and accepting connections."
It goes without saying that the instance in question is available over internet.
One thing is that even though Xcode SCM is configured with HTTPS and the repo has only HTTPS remote configured when setting up Xcode the the authorisation flow flashes this redirect URL:
client_redirect_path=/ci/api/teams/REDACTED/internal-setup-flow/scm-providers&team_id=REDACTED&scm_provider_id=REDACTED&client_redirect_base_uri=https://appstoreconnect.apple.com?git_clone_url=ssh://git[@]gitlab.REDACTED/REDACTED.git&provider=gitlab-hosted&redirectAfterSuccessUri=https://appstoreconnect.apple.com/teams/REDACTED/ci-setup/success&code=REDACTED&state=REDACTED
Why is Xcode Cloud attempting to clone via SSH?
git_clone_url=ssh://git[@]gitlab.REDACTED/REDACTED.git
