map env vars to nested appsettings-CodePudding

I have the following nested data in the appsettings.json:

{
  "Jwt": {
    "PublicKey": "...",
    "PrivateKey": "..."
  },
  ...
}

And the goal is to run this app in WSL/Docker/etc. so basically I want to override this config nested with environment variables

I've tried to use "Jwt:PublicKey" as a variable name, but it doesn't work.

What is the general approach for the env vars storage the way they're able to be mapped to nested configuration?

P.S. actually I store keys in user secrets (secrets.json), but it's kind of irrelevant to the question.

CodePudding user response：

According to MSDN you can set environment variables like this: Jwt__PublicKey.

This would go in your Dockerfile under environment section:

environment: 
      - Jwt__PublicKey=publickey
      - Jwt__PrivateKey=...