feat: support remote backend and HTTPS proxy

.env.example

@@ -33,12 +33,22 @@ STORAGE_TYPE=local
 # 流处理后端(memory/redis)
 STREAM_MANAGER_TYPE=redis
 
-# 应用服务主机名，默认为app
+# 应用服务主机名，默认为app（Docker内部服务名）
+# 如需代理到远程后端，可设为远程地址，如 remote-app.example.com
 APP_HOST=app
 
-# 应用服务端口，默认为8080
+# 应用服务宿主机映射端口，默认为8080（仅影响宿主机访问，不影响容器间通信）
 APP_PORT=8080
 
+# NGINX 代理到后端的目标端口，默认为8080（App容器内部监听端口）
+# 本地部署：保持默认即可，无需随 APP_PORT 修改
+# 远程部署：设为远程 App 服务的实际端口
+# APP_BACKEND_PORT=8080
+
+# NGINX 代理到后端的协议，默认为http
+# 远程部署如后端为 HTTPS，需设为 https
+# APP_SCHEME=http
+
 # 前端服务端口，默认为80
 FRONTEND_PORT=80
 

docker-compose.yml

@@ -11,7 +11,13 @@ services:
     environment:
       - MAX_FILE_SIZE_MB=${MAX_FILE_SIZE_MB:-50}
       - APP_HOST=${APP_HOST:-app}
-      - APP_PORT=${APP_PORT:-8080}
+      # APP_BACKEND_PORT: the port NGINX proxies to (default 8080).
+      # For local deployment this is the App container's listening port, independent of host-mapped APP_PORT.
+      # For remote deployment, set this to the remote App's service port.
+      - APP_PORT=${APP_BACKEND_PORT:-8080}
+      - APP_SCHEME=${APP_SCHEME:-http}
+    # NOTE: If using a remote App backend, comment out or remove the depends_on
+    # block below and set APP_HOST/APP_BACKEND_PORT/APP_SCHEME in your .env file.
     depends_on:
       app:
         condition: service_healthy

frontend/docker-entrypoint.sh

@@ -11,7 +11,8 @@ EOF
 export MAX_FILE_SIZE=${MAX_FILE_SIZE_MB}M
 export APP_HOST=${APP_HOST:-app}
 export APP_PORT=${APP_PORT:-8080}
-envsubst '${MAX_FILE_SIZE} ${APP_HOST} ${APP_PORT}' < /etc/nginx/templates/default.conf.template > /etc/nginx/conf.d/default.conf
+export APP_SCHEME=${APP_SCHEME:-http}
+envsubst '${MAX_FILE_SIZE} ${APP_HOST} ${APP_PORT} ${APP_SCHEME}' < /etc/nginx/templates/default.conf.template > /etc/nginx/conf.d/default.conf
 
 # 启动 nginx
 exec nginx -g 'daemon off;'

frontend/nginx.conf

@@ -22,8 +22,9 @@ server {
     }
 
     # API请求代理到后端服务
+    # APP_SCHEME 默认 http，远程 HTTPS 后端可设为 https
     location /api/ {
-        proxy_pass http://${APP_HOST}:${APP_PORT}/api/;
+        proxy_pass ${APP_SCHEME}://${APP_HOST}:${APP_PORT}/api/;
         proxy_set_header Host $host;
         proxy_set_header X-Real-IP $remote_addr;
         proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;