feat: HTTPS support with nginx reverse proxy

- Add nginx as reverse proxy (HTTP→HTTPS redirect, self-signed cert)
- start.sh entrypoint: generates SSL cert, starts nginx + uvicorn
- Single-stage Dockerfile (no separate frontend build stage)
- Expose ports 80 and 443 in docker-compose
- Update README port references for HTTPS

Dockerfile

@@ -1,44 +1,27 @@
-# Stage 1: Build frontend
-FROM node:20-alpine AS frontend-build
-
-WORKDIR /app/frontend
-
-COPY frontend/package.json frontend/package-lock.json ./
-RUN npm ci
-
-COPY frontend/ ./
-ENV VITE_API_BASE_URL=/api/v1
-RUN npm run build
-
-# Stage 2: Production runtime
 FROM python:3.11-slim
 
 WORKDIR /app
 
-# Install system dependencies (ffmpeg for video audio extraction)
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    tini \
-    ffmpeg \
+    nginx openssl tini ffmpeg curl \
     && rm -rf /var/lib/apt/lists/*
 
-# Install Python dependencies
 COPY backend/requirements.txt ./
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy backend source
 COPY backend/ ./
+COPY frontend/dist ./frontend/dist
 
-# Copy built frontend from stage 1
-COPY --from=frontend-build /app/frontend/dist ./frontend/dist
+RUN rm -f /etc/nginx/sites-enabled/default /etc/nginx/conf.d/default.conf
+COPY nginx.conf /etc/nginx/conf.d/default.conf
 
-# Create data directories
-RUN mkdir -p /app/chroma_db /app/document_chunk /app/data /app/uploads /app/app/log
+COPY start.sh /start.sh
+RUN chmod +x /start.sh
 
-# Expose port
-EXPOSE 8000
+RUN mkdir -p /app/chroma_db /app/document_chunk /app/data /app/uploads /app/app/log \
+    /etc/nginx/ssl /var/log/nginx /var/lib/nginx
+
+EXPOSE 80 443
 
-# Use tini as init to handle signals properly
 ENTRYPOINT ["tini", "--"]
-
-# Start uvicorn
-CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--port", "8000"]
+CMD ["/start.sh"]

README.md

@@ -156,7 +156,7 @@ gunzip legco_reranker_amd64.tar.gz
 docker load -i legco_reranker_amd64.tar
 
 # Run
-docker run -d --name legco -p 80:8000 --env-file backend/.env \
+docker run -d --name legco -p 80:80 -p 443:443 --env-file backend/.env \
   -v chroma_data:/app/chroma_db \
   -v chunk_data:/app/document_chunk \
   -v sqlite_data:/app/data \
@@ -168,7 +168,7 @@ docker run -d --name legco -p 80:8000 --env-file backend/.env \
 Before transferring to the server, test the amd64 image locally. Pass all config inline (no `--env-file`):
 
 ```bash
-docker run -d --name legco_test -p 8888:8000 \
+docker run -d --name legco_test -p 8888:443 \
   -e LLM_BASE_URL=https://openrouter.ai/api/v1 \
   -e LLM_API_KEY=your_key_here \
   -e LLM_MODEL_NAME=qwen/qwen3.6-35b-a3b \
@@ -196,8 +196,8 @@ docker run -d --name legco_test -p 8888:8000 \
   -v ~/woody/legco/data/data:/app/data \
   legco_reranker:amd64.01.02
 
-# Verify
-curl http://localhost:8888/health
+# Verify (accept self-signed cert with -k)
+curl -k https://localhost:8888/health
 
 # Clean up
 docker rm -f legco_test

docker-compose.yml

@@ -5,6 +5,8 @@ services:
     build: .
     container_name: legco_reranker
     ports:
+      - "80:80"
+      - "443:443"
       - "8000:8000"
     env_file:
       - ./backend/.env

nginx.conf

@@ -1,6 +1,19 @@
+# HTTP → HTTPS redirect
 server {
     listen 80;
     server_name _;
+    return 301 https://$host$request_uri;
+}
+
+# HTTPS server
+server {
+    listen 443 ssl;
+    server_name _;
+
+    ssl_certificate     /etc/nginx/ssl/server.crt;
+    ssl_certificate_key /etc/nginx/ssl/server.key;
+    ssl_protocols       TLSv1.2 TLSv1.3;
+    ssl_ciphers         HIGH:!aNULL:!MD5;
 
     client_max_body_size 350M;
 

start.sh

@@ -0,0 +1,24 @@
+#!/bin/bash
+set -e
+
+CERT_DIR="/etc/nginx/ssl"
+CERT_FILE="$CERT_DIR/server.crt"
+KEY_FILE="$CERT_DIR/server.key"
+
+mkdir -p "$CERT_DIR"
+
+if [ ! -f "$CERT_FILE" ] || [ ! -f "$KEY_FILE" ]; then
+    echo "Generating self-signed SSL certificate..."
+    openssl req -x509 -nodes -days 365 -newkey rsa:2048 \
+        -keyout "$KEY_FILE" \
+        -out "$CERT_FILE" \
+        -subj "/C=HK/ST=HongKong/L=HongKong/O=LegCoReranker/CN=localhost" \
+        -addext "subjectAltName=DNS:localhost,IP:127.0.0.1"
+    echo "Self-signed certificate generated."
+fi
+
+echo "Starting nginx..."
+nginx
+
+echo "Starting uvicorn..."
+exec tini -- uvicorn app.main:app --host 0.0.0.0 --port 8000