feat: add docker proxy

Dockerfile

@@ -3,6 +3,7 @@ FROM node:18-alpine AS base
 FROM base AS deps
 
 RUN apk add --no-cache libc6-compat
+RUN apk --no-cache add proxychains-ng
 
 WORKDIR /app
 
@@ -27,6 +28,7 @@ RUN yarn build
 FROM base AS runner
 WORKDIR /app
 
+ENV PROXY_URL=""
 ENV OPENAI_API_KEY=""
 ENV CODE=""
 
@@ -37,4 +39,12 @@ COPY --from=builder /app/.next/server ./.next/server
 
 EXPOSE 3000
 
-CMD ["node","server.js"]
+CMD if [ -n "$PROXY_URL" ]; then \
+        protocol=$(echo $PROXY_URL | cut -d: -f1); \
+        host=$(echo $PROXY_URL | cut -d/ -f3 | cut -d: -f1); \
+        port=$(echo $PROXY_URL | cut -d: -f3); \
+        echo "$protocol $host $port" >> /etc/proxychains.conf; \
+        proxychains node server.js; \
+    else \
+        node server.js; \
+    fi