feat: make API base URL runtime-configurable

The PROD image baked PUBLIC_API_BASE_URL at build time (rsbuild inlines
PUBLIC_* vars), so a prebuilt image could only ever target a same-origin
'/api/v1' and needed a reverse proxy in front. Move the operator default to
runtime so one image can point at any backend origin without rebuilding.

- public/config.js: committed stub setting window.__APP_CONFIG__ = {}, used
  as the dev/build-time default and overwritten in prod at container start.
- rsbuild.config.ts: inject a classic (non-deferred) <script src="/config.js">
  into <head> so it runs before the deferred app bundle.
- src/config/env.ts: DEFAULT_API_BASE_URL now resolves
  window.__APP_CONFIG__.apiBaseUrl > import.meta.env.PUBLIC_API_BASE_URL >
  '/api/v1'. The user-chosen instance still wins over all of these.
- dockerfiles/30-runtime-config.sh: nginx /docker-entrypoint.d hook that
  regenerates /config.js from $PUBLIC_API_BASE_URL on every start.
- Dockerfile.prod: install the hook (build-time ARG is now just a fallback).
- nginx.conf: serve /config.js with Cache-Control: no-store.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Senko-san
2026-06-08 12:40:59 +03:00
parent 451dbb94a8
commit bcfb36d53e
7 changed files with 78 additions and 3 deletions
+10
View File
@@ -36,6 +36,16 @@ export default defineConfig({
// "Install app". The service worker (audio offline cache) is registered
// from src/index.tsx, not here.
tags: [
// Runtime operator config. A classic (non-deferred) head script, so it
// runs before the deferred app bundle and window.__APP_CONFIG__ is set by
// the time src/config/env.ts reads it. Served from public/ in dev and
// overwritten from $PUBLIC_API_BASE_URL at container start in prod.
{
tag: 'script',
attrs: { src: '/config.js' },
head: true,
append: false,
},
{
tag: 'link',
attrs: { rel: 'manifest', href: '/manifest.webmanifest' },