How to publish environment specific appsettings in .Net core app?

Question

I have 3 environment specific appsettings files in my .Net core application

in project.json I have setup publishOptions

Answer 1

In my case I have several appSettings files for several live environments, e.g. appSettings.Env1Live.json, appSettings.Env2Live.json, etc.

I looked through the article https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/visual-studio-publish-profiles?view=aspnetcore-3.1 and added the following statements in the corresponding publish (pubxml) config files per each environment.

E.g. for PublishToEnvironment1.pubxml added:

So, in the published folder I have only two necessary files, other appSettings.*Live.json were not published.

appsettings.json

appsettings.Env1Live.json