How to set an environment variable with a value composed with an endpoint address?

[paulomorgado]

This gets tricky because, if the resource is a container resource, depending on the docker engine, it might need to change the host name.

It works for WithReference, but how would it work for any other environment variable when it needs to be composed with path?

[davidfowl]

Does this help

There are lots of issues around this (small paper cuts):

• Support replacing the container host within ReferenceExpression #3735
• Inconsistent result from WithEnvironment string interpolation and reference overloads. #3937

[paulomorgado]

That's a good one. For the time being, I'm using connection strings for things like Keycloak realms to inject into JwtBearerOptions.Authority.