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feat: make API base URL runtime-configurable

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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
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dockerfiles/nginx.conf
+7
View File
@@ -14,6 +14,13 @@ server {
try_files $uri =404;
}
# Runtime operator config — regenerated per container start, so it must
# never be cached or a redeployed backend URL would be ignored.
location = /config.js {
add_header Cache-Control "no-store";
try_files $uri =404;
}
# SPA: every unknown path falls back to index.html (client-side router).
location / {
try_files $uri $uri/ /index.html;