backstage/.changeset/lazy-zebras-pay.md

@backstage/create-app

@backstage/create-app
patch

Added some instruction comments to the generated config files, to clarify the usage of backend.baseUrl and backend.listen.host. Importantly, it also per default now listens on all IPv4 interfaces, to make it easier to take the step over to production. If you want to do the same, update your app-config.production.yaml as follows:

 backend:
   listen:
     port: 7007
+    host: 0.0.0.0

Also, updated the builtin backend Dockerfile to honor the app-config.production.yaml file. If you want to do the same, change packages/backend/Dockerfile as follows:

-COPY packages/backend/dist/bundle.tar.gz app-config.yaml ./
+COPY packages/backend/dist/bundle.tar.gz app-config*.yaml ./
 RUN tar xzf bundle.tar.gz && rm bundle.tar.gz

-CMD ["node", "packages/backend", "--config", "app-config.yaml"]
+CMD ["node", "packages/backend", "--config", "app-config.yaml", "--config", "app-config.production.yaml"]

If you look carefully, this adds a glob match on app-config files. For those that try out the build flows locally, you also want to make sure that the docker daemon does NOT pick up any local/private config files that might contain secrets. You should therefore also update your local .dockerignore file at the same time:

+*.local.yaml