add new build environment variable to allow this template to be easily deployed in air gapped environments

[cadjai]

When deploying this template or any python based application in an air gapped, disconnected or non standard environment where the custom pypi is non standard the build pod fails to build because it does not trust the certificate of the provided custom pypi server. The way we have been able to get around this has been to add a build environment variable named PIP_TRUSTED_HOST and set its value to the FQDN or IP of the custom server. Adding alongside the PIP_INDEX_URL will allow for easier deployment. In standard environment that variable would not be needed.

[frenzymadness]

Is this still active? I think that with the new Python containers you are enabled to accomplish this easily.