App service oryx build failing for flask app

[Ajaykp1997]

• At what date and time did you most recently experience the problem?
  2023-11-13 9.00 IST

• Where did you experience the problem? E.g. Azure Web Apps, Azure Functions, Azure Container Registry, or offline use.
  Azure web apps

• If your repo is publicly available please share its URL:
  Not available publicly

• What happened?
  We are using azure app service and have a complete network restriction on outbound and inbound calls in azure app service. We have only whitelisted oryx-cdn.microsoft.io as per documentation. But now oryx build is failing as the outbound call to pypi.org is blocked.

• What did you expect or want to happen?
  Wanted a successful oryx build to happen with all pip packages installed without connecting to pypi.org

• How can we reproduce it?
  By blocking all outbound network calls and only whitelisting microsoft-oryx link.

• Do you have log output? Please include between the backticks:

ReadTimeoutError("HTTPSConnectionPool(host='pypi.org', port=443): Read timed out. (read timeout=15)")

[simonjj]

Thank you for reaching out. You will need to enable http proxy access for Oryx to fetch its packages. Issue #1958 should provide enough information to provide guidance.