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mcma-webui/dockerfiles/30-runtime-config.sh
T
Senko-san bcfb36d53e 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>
2026-06-08 12:40:59 +03:00

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#!/bin/sh
# Write the SPA's runtime operator config at container start.
#
# The nginx base image runs every /docker-entrypoint.d/*.sh before launching
# nginx, so this overwrites the build-time public/config.js stub with the value
# of $PUBLIC_API_BASE_URL. That lets one prebuilt image target any backend
# origin without rebuilding. Resolution + precedence live in src/config/env.ts.
set -eu
: "${PUBLIC_API_BASE_URL:=/api/v1}"
ROOT="${NGINX_HTML_ROOT:-/usr/share/nginx/html}"
printf 'window.__APP_CONFIG__={"apiBaseUrl":"%s"};\n' "$PUBLIC_API_BASE_URL" \
>"$ROOT/config.js"
echo "runtime-config: wrote apiBaseUrl=$PUBLIC_API_BASE_URL to $ROOT/config.js"