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Clean Model Context Protocol
Lean Mean Clean Apps

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Configuration

Environment variables

Section titled “Environment variables”

Every setting in appsettings.json can be overridden with an environment variable, using __ where the JSON nests.

Variable Default Description
DOTNET_ENVIRONMENT none Layers appsettings.<environment>.json over appsettings.json. The template ships local and docker
ASPNETCORE_URLS http://+:8080 in the container The addresses to listen on
ASPNETCORE_FORWARDEDHEADERS_ENABLED none Set to true behind a proxy that ends TLS, so HTTPS redirection sees the original scheme
ConnectionStrings__MovieReviews Data Source=movie-reviews.db The SQLite connection string. appsettings.docker.json points it at /app/data/movie-reviews.db
Database__SeedSampleData false When true, seeds sample data into an empty database. On in local and docker
Authentication__Authority empty The OAuth authorization server that issues access tokens. Setting it turns authentication on
Authentication__Audience empty The audience access tokens must be issued for, usually the server’s own URL
Authentication__Scopes__0, __1, … none The scopes clients should ask for, published in the protected resource metadata
Serilog__MinimumLevel__Default Debug The minimum log level. appsettings.json also overrides Microsoft, Microsoft.AspNetCore and System

Docker build arguments

Section titled “Docker build arguments”
Argument Default Description
VERSION_PREFIX 1.0.0.0 The version stamped into the assemblies
VERSION_SUFFIX none A prerelease label added to the version
ENVIRONMENT docker Sets DOTNET_ENVIRONMENT during the build and tests
BASE_IMAGE_REPO, BASE_IMAGE_BUILD, BASE_IMAGE_BUILD_TAG mcr.microsoft.com, dotnet/sdk, 10.0-alpine The SDK image used to build and test
BASE_IMAGE_RUNTIME, BASE_IMAGE_RUNTIME_TAG dotnet/aspnet, 10.0-alpine The runtime image the server runs on

Docker Compose services

Section titled “Docker Compose services”
Service What it is Port
api The image, built from the run stage 8080
inspector The MCP Inspector, pointed at the server 6274, on localhost only
seq Seq, for the logs 5341

The api service runs with DOTNET_ENVIRONMENT=docker, mounts the movie-reviews-data volume at /app/data, and sends its logs to the seq service.

Ports when running with dotnet run

Section titled “Ports when running with dotnet run”

src/Presentation/Properties/launchSettings.json sets DOTNET_ENVIRONMENT=local and listens on http://localhost:5032 and https://localhost:7032.

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