[Usage]: How to use Env in yaml

[ciaoyizhen]

Your current environment

How would you like to use vllm

I have different graphics cards, and their own video memory is different.
I hope to use vllm server-configvllm.yaml to start the model, but I may only want to use 16G, but my image may have been packaged, and I may only start the image. I hope to use environment variables to control the parameters of GPU-memory-utilization. This is written in yaml. How can I control it through environment variables?

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[ciaoyizhen]

envsubst 是否能直接在启动的时候使用呢？