Amend CORS

docker/Dockerfile

@@ -18,13 +18,13 @@ RUN mkdir -p /runtime-config && \
 USER nginx
 
 # Copy built assets
-COPY --from=builder --chown=nginx:nginx /app/dist /usr/share/nginx/html
+COPY --chown=nginx:nginx dist /usr/share/nginx/html
 
-# Copy our custom nginx config
-COPY nginx.conf /etc/nginx/nginx.conf
+# Copy nginx config template
+COPY --chown=nginx:nginx nginx.conf.template /etc/nginx/templates/
 
 # Copy entrypoint script
-COPY docker/entrypoint.sh /entrypoint.sh
+COPY --chown=nginx:nginx docker/entrypoint.sh /entrypoint.sh
 
 # Make entrypoint executable
 USER root

docker/entrypoint.sh

@@ -4,10 +4,16 @@ set -e
 # Create runtime config file in writable location
 cat > /runtime-config/config.js <<EOF
 window.__APP_CONFIG__ = {
-  API_BASE_URL: "${API_BASE_URL}",
-  OTHER_VAR: "${OTHER_VAR}"
+  API_BASE_URL: "${API_BASE_URL}"
 };
 EOF
 
+# Generate nginx config from template (if using)
+if [ -f "/etc/nginx/templates/nginx.conf.template" ]; then
+  envsubst '${API_BASE_URL}' \
+    < /etc/nginx/templates/nginx.conf.template \
+    > /etc/nginx/nginx.conf
+fi
+
 # Start Nginx
 exec nginx -g "daemon off;"