From bbba2a5d1e698a82cbe573b1f454775c96be4970 Mon Sep 17 00:00:00 2001
From: orenzhang <41963680+OrenZhang@users.noreply.github.com>
Date: Wed, 29 Apr 2026 22:07:50 +0800
Subject: [PATCH 1/3] chore(build): pre-build Next.js to boost startup time

---
 frontend/Dockerfile     | 41 +++++++++++++++++++++++------------------
 frontend/entrypoint.sh  | 36 ++++++++++++++++++++++++++++++++++++
 frontend/next.config.ts |  2 +-
 frontend/proxy.ts       |  2 +-
 4 files changed, 61 insertions(+), 20 deletions(-)
 create mode 100755 frontend/entrypoint.sh

diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 98cbfca7..9ecc2457 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -1,3 +1,4 @@
+# ---- base stage ----
 FROM node:22-alpine AS base
 
 ENV PNPM_HOME="/pnpm"
@@ -5,36 +6,40 @@ ENV PATH="$PNPM_HOME:$PATH"
 
 RUN corepack enable && corepack prepare pnpm@10.10.0 --activate
 
-# ---- deps stage ----
-FROM base AS deps
+# ---- build stage ----
+FROM base AS builder
+
+ENV NODE_ENV=production
+ENV NEXT_PUBLIC_LINUX_DO_CREDIT_BACKEND_URL=https://build-placeholder.invalid
+ENV LINUX_DO_CREDIT_SESSION_COOKIE_NAME=__LINUX_DO_CREDIT_SESSION_COOKIE_NAME__
+ENV LINUX_DO_CREDIT_RATE_LIMIT_ENABLED=__LINUX_DO_CREDIT_RATE_LIMIT_ENABLED__
+
+ARG VERSION=""
+ARG BUILD_DATE=""
 
 WORKDIR /app
 
 COPY package.json pnpm-lock.yaml ./
+COPY patches ./patches
+
+RUN if [ -n "$VERSION" ] || [ -n "$BUILD_DATE" ]; then \
+  VERSION="$VERSION" BUILD_DATE="$BUILD_DATE" node -e "const fs = require('fs'); const pkg = require('./package.json'); const version = process.env.VERSION; const buildDate = process.env.BUILD_DATE; if (version) pkg.version = version; if (buildDate) pkg.buildDate = buildDate; fs.writeFileSync('./package.json', JSON.stringify(pkg, null, 2) + '\\n')"; \
+fi
 
 RUN pnpm install --frozen-lockfile
 
+COPY . .
+
+RUN pnpm build
+
 # ---- runner stage ----
 FROM base AS runner
 
 WORKDIR /app
 
-ENV NODE_ENV=production
-
-# accepts version argument to override package.json version
-ARG VERSION=""
-
-# accepts build date argument to set package.json build metadata
-ARG BUILD_DATE=""
-
-COPY --from=deps /app/node_modules ./node_modules
-COPY . .
-
-# update package.json build metadata when build args are provided
-RUN if [ -n "$VERSION" ] || [ -n "$BUILD_DATE" ]; then \
-  VERSION="$VERSION" BUILD_DATE="$BUILD_DATE" node -e "const fs = require('fs'); const pkg = require('./package.json'); const version = process.env.VERSION; const buildDate = process.env.BUILD_DATE; if (version) pkg.version = version; if (buildDate) pkg.buildDate = buildDate; fs.writeFileSync('./package.json', JSON.stringify(pkg, null, 2) + '\\n')"; \
-fi
+COPY --from=builder /app .
 
 EXPOSE 3000
 
-CMD ["sh", "-c", "pnpm build && pnpm start"]
+ENTRYPOINT ["./entrypoint.sh"]
+CMD ["pnpm", "start"]
diff --git a/frontend/entrypoint.sh b/frontend/entrypoint.sh
new file mode 100755
index 00000000..595ca8af
--- /dev/null
+++ b/frontend/entrypoint.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+set -e
+
+replace_placeholder() {
+  local placeholder="$1"
+  local real_value="$2"
+
+  if [ -z "$real_value" ]; then
+    echo "⚠️ WARNING: Environment variable for placeholder '${placeholder}' is not set. Skipping replacement."
+    return 0
+  fi
+
+  echo "🔍 Replacing placeholder '${placeholder}' with value '${real_value}'"
+
+  local escaped
+  escaped=$(printf '%s\n' "$real_value" | sed 's/[&/\]/\\&/g')
+
+  local files
+  files=$(grep -rl "$placeholder" /app/.next || true)
+
+  if [ -z "$files" ]; then
+    echo "⚠️  WARNING: placeholder '${placeholder}' not found in any file"
+  else
+    local count
+    count=$(echo "$files" | wc -l)
+    echo "$files" | xargs sed -i "s|${placeholder}|${escaped}|g"
+    echo "✅ Replaced '${placeholder}' in ${count} file(s)"
+  fi
+}
+
+replace_placeholder "https://build-placeholder.invalid" "$NEXT_PUBLIC_LINUX_DO_CREDIT_BACKEND_URL"
+replace_placeholder "__LINUX_DO_CREDIT_SESSION_COOKIE_NAME__" "$LINUX_DO_CREDIT_SESSION_COOKIE_NAME"
+replace_placeholder "__LINUX_DO_CREDIT_RATE_LIMIT_ENABLED__" "$LINUX_DO_CREDIT_RATE_LIMIT_ENABLED"
+
+exec "$@"
diff --git a/frontend/next.config.ts b/frontend/next.config.ts
index a4f350d7..2e26b08f 100644
--- a/frontend/next.config.ts
+++ b/frontend/next.config.ts
@@ -5,7 +5,7 @@ const nextConfig: NextConfig = {
   experimental: {
   },
   async rewrites() {
-    const backendUrl = process.env.LINUX_DO_CREDIT_BACKEND_URL || 'http://localhost:8000';
+    const backendUrl = process.env.NEXT_PUBLIC_LINUX_DO_CREDIT_BACKEND_URL || 'http://localhost:8000';
     return [
       // 易支付兼容接口 - 创建订单
       {
diff --git a/frontend/proxy.ts b/frontend/proxy.ts
index bacff58a..102f8b8b 100644
--- a/frontend/proxy.ts
+++ b/frontend/proxy.ts
@@ -86,7 +86,7 @@ export function proxy(request: NextRequest) {
 
   /* API 请求：速率限制后放行 */
   if (pathname.startsWith('/api/')) {
-    const rateLimitEnabled = !!process.env.LINUX_DO_CREDIT_RATE_LIMIT_ENABLED
+    const rateLimitEnabled = process.env.LINUX_DO_CREDIT_RATE_LIMIT_ENABLED === 'true'
 
     if (rateLimitEnabled && shouldRateLimit(pathname)) {
       const identifier = sessionCookie?.value ||

From a5941240d13321a57d79cfeb6c85f5e6b764efda Mon Sep 17 00:00:00 2001
From: orenzhang <41963680+OrenZhang@users.noreply.github.com>
Date: Wed, 29 Apr 2026 22:59:48 +0800
Subject: [PATCH 2/3] chore(build_image): streamline build date handling in
 Dockerfile

---
 frontend/Dockerfile | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/frontend/Dockerfile b/frontend/Dockerfile
index 9ecc2457..3b7e4886 100644
--- a/frontend/Dockerfile
+++ b/frontend/Dockerfile
@@ -14,17 +14,9 @@ ENV NEXT_PUBLIC_LINUX_DO_CREDIT_BACKEND_URL=https://build-placeholder.invalid
 ENV LINUX_DO_CREDIT_SESSION_COOKIE_NAME=__LINUX_DO_CREDIT_SESSION_COOKIE_NAME__
 ENV LINUX_DO_CREDIT_RATE_LIMIT_ENABLED=__LINUX_DO_CREDIT_RATE_LIMIT_ENABLED__
 
-ARG VERSION=""
-ARG BUILD_DATE=""
-
 WORKDIR /app
 
 COPY package.json pnpm-lock.yaml ./
-COPY patches ./patches
-
-RUN if [ -n "$VERSION" ] || [ -n "$BUILD_DATE" ]; then \
-  VERSION="$VERSION" BUILD_DATE="$BUILD_DATE" node -e "const fs = require('fs'); const pkg = require('./package.json'); const version = process.env.VERSION; const buildDate = process.env.BUILD_DATE; if (version) pkg.version = version; if (buildDate) pkg.buildDate = buildDate; fs.writeFileSync('./package.json', JSON.stringify(pkg, null, 2) + '\\n')"; \
-fi
 
 RUN pnpm install --frozen-lockfile
 
@@ -32,13 +24,26 @@ COPY . .
 
 RUN pnpm build
 
+RUN grep -rl \
+    -e "https://build-placeholder.invalid" \
+    -e "__LINUX_DO_CREDIT_SESSION_COOKIE_NAME__" \
+    -e "__LINUX_DO_CREDIT_RATE_LIMIT_ENABLED__" \
+    /app/.next > /app/.replace.files
+
 # ---- runner stage ----
 FROM base AS runner
 
+ARG VERSION=""
+ARG BUILD_DATE=""
+
 WORKDIR /app
 
 COPY --from=builder /app .
 
+RUN if [ -n "$VERSION" ] || [ -n "$BUILD_DATE" ]; then \
+  VERSION="$VERSION" BUILD_DATE="$BUILD_DATE" node -e "const fs = require('fs'); const pkg = require('./package.json'); const version = process.env.VERSION; const buildDate = process.env.BUILD_DATE; if (version) pkg.version = version; if (buildDate) pkg.buildDate = buildDate; fs.writeFileSync('./package.json', JSON.stringify(pkg, null, 2) + '\\n')"; \
+fi
+
 EXPOSE 3000
 
 ENTRYPOINT ["./entrypoint.sh"]

From 0ac6a44ef258b146b4787269696415e36831b1bc Mon Sep 17 00:00:00 2001
From: orenzhang <41963680+OrenZhang@users.noreply.github.com>
Date: Wed, 29 Apr 2026 23:02:20 +0800
Subject: [PATCH 3/3] chore(entrypoint): update file search logic to use
 .replace.files if available

---
 frontend/entrypoint.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/frontend/entrypoint.sh b/frontend/entrypoint.sh
index 595ca8af..2244a442 100755
--- a/frontend/entrypoint.sh
+++ b/frontend/entrypoint.sh
@@ -17,7 +17,9 @@ replace_placeholder() {
   escaped=$(printf '%s\n' "$real_value" | sed 's/[&/\]/\\&/g')
 
   local files
-  files=$(grep -rl "$placeholder" /app/.next || true)
+  if [ -f /app/.replace.files ]; then
+    files=$(grep -l "$placeholder" $(cat /app/.replace.files) 2>/dev/null || true)
+  fi
 
   if [ -z "$files" ]; then
     echo "⚠️  WARNING: placeholder '${placeholder}' not found in any file"