Related to an existing integration?

Yes

Existing integration

CommunityToolkit.Aspire.Hosting.Golang

Overview

Aspire 13 allows to define how dockerfile should be generated for certain resources:

  .PublishAsDockerFile(publish =>
  {
      publish.WithDockerfileBuilder("/path/to/app", context =>
      {
          var buildStage = context.Builder
              .From("golang:1.23", "builder")
              .WorkDir("/build")
              .Copy(".", "./")
              .Run("go build -o /app/server .");

          context.Builder
              .From("alpine:latest")
              .CopyFrom(buildStage.StageName!, "/app/server", "/app/server")
              .Entrypoint(["/app/server"]);
      });

documented here: https://aspire.dev/whats-new/aspire-13/#dockerfile-builder-api-experimental

this should be added to the golang resource, so that the dev can avoid define its own dockerfile for golang apps.

Usage example

adding the golang app this way

var golang = builder.AddGolangApp("golang", "../gin-api")
    .WithHttpEndpoint(env: "PORT")
    .WithHttpHealthCheck("/health");

would automatically support the publish as dockerfile without defining one.

Breaking change?

No

Alternatives

var golang = builder.AddGolangApp("golang", "../gin-api")
    .WithHttpEndpoint(env: "PORT")
    .WithHttpHealthCheck("/health")
    .PublishAsDockerfile();

this would work given the dockerfile is found in the working directory.

Additional context

No response

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