add ARG CONTRY=CN to improve the alpinelinux install speed

Dockerfile.dev

@@ -32,7 +32,13 @@ FROM node:18-alpine AS builder-admin-frontend
 # Set working directory
 WORKDIR /frontend
 
-RUN apk update && apk add git --no-cache
+ARG COUNTRY
+# Install required tools without caching index to minimize image size
+RUN if [ "$COUNTRY" = "CN" ] ; then \
+        echo "It is in China, updating the repositories"; \
+        sed -i 's#https\?://dl-cdn.alpinelinux.org/alpine#https://mirrors.tuna.tsinghua.edu.cn/alpine#g' /etc/apk/repositories; \
+    fi && \
+    apk update && apk add --no-cache git
 
 # Clone the frontend repository
 RUN git clone https://github.com/lejianwen/rustdesk-api-web .
@@ -47,7 +53,13 @@ FROM alpine:latest
 WORKDIR /app
 
 # Install necessary runtime dependencies
-RUN apk add --no-cache tzdata file
+# Install required tools without caching index to minimize image size
+ARG COUNTRY
+RUN if [ "$COUNTRY" = "CN" ] ; then \
+        echo "It is in China, updating the repositories"; \
+        sed -i 's#https\?://dl-cdn.alpinelinux.org/alpine#https://mirrors.tuna.tsinghua.edu.cn/alpine#g' /etc/apk/repositories; \
+    fi && \
+    apk update && apk add --no-cache tzdata file
 
 # Copy the built application and resources from the builder stage
 COPY --from=builder-backend /app/release /app/

docker-compose-dev.yaml

@@ -3,6 +3,8 @@ services:
     build: 
       context: .
       dockerfile: Dockerfile.dev
+      args:
+        COUNTRY: CN
     # image: lejianwen/rustdesk-api
     container_name: rustdesk-api
     environment: