lambda-python: Allow passing build args to Docker in PythonFunction

[jamesTait-jt]

Ability to pass args to docker when using aws_lambda_python.PythonFunction

Use Case

I am trying to deploy a stack from behind a proxy. I want to be able to pass --network host to the PythonLambda docker command so that the container is able to access the internet through the proxy.

Proposed Solution

This seems to have been solved for aws_lambda_nodejs here:
#8117

So perhaps a similar solution?

Other

• 👋 I may be able to implement this feature request
• ⚠️ This feature might incur a breaking change

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This is a 🚀 Feature Request

[eladb]

Happy to accept contributions

[rirze]

Looking at this to pass ssh agent inside Docker. Would help in getting access to private repositories.

I'm going to try to implement this and make a PR, but I'm not fluent in typescript or CDK internals.

[jia2]

When will this feature be added?

[rirze]

Sorry, I've been procrastinating this for a while now-- mostly because I'm not super comfortable with TypseScript and not knowing how to implement this feature properly.

I'll try to reopen the PR sometime this week or next week and move this forward.

[setu4993]

I have #15324 open which would resolve this.