fix: Resolve Docker permission issues in development environment

- Create dedicated Dockerfile.backend.dev for development with proper permissions
- Set user UID/GID to 1000 (common for development systems)
- Create logs and temp directories in Dockerfile before switching user
- Use named volumes for logs, temp, and node_modules to maintain permissions
- Mount only source files instead of entire backend directory
- Remove complex entrypoint script in favor of simple CMD
- Add LOG_DIR and TEMP_DIR environment variables

This fixes the "Permission denied" errors when creating directories in Docker.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

backend/docker-entrypoint.sh

@@ -1,15 +1,5 @@
 #!/bin/sh
 set -e
 
-# Ensure logs directory exists with correct permissions
-if [ ! -d "/app/logs" ]; then
-    mkdir -p /app/logs
-fi
-
-# Ensure temp directory exists
-if [ ! -d "/app/temp" ]; then
-    mkdir -p /app/temp
-fi
-
 # Start the application
-exec node src/app.js
+exec "$@"

docker-compose.dev.yml

@@ -8,26 +8,30 @@ services:
   backend:
     build:
       context: ./backend
-      dockerfile: ../docker/Dockerfile.backend
+      dockerfile: ../docker/Dockerfile.backend.dev
     container_name: minio-webui-backend-dev
     restart: unless-stopped
     environment:
       NODE_ENV: development
       PORT: 7510
+      LOG_DIR: /app/logs
+      TEMP_DIR: /app/temp
     env_file:
       - .env
     ports:
       - "7510:7510"
     volumes:
-      - ./backend:/app
-      - /app/node_modules
-      - ./logs:/app/logs
+      - ./backend/src:/app/src
+      - ./backend/package.json:/app/package.json
+      - ./backend/package-lock.json:/app/package-lock.json
+      - backend-logs:/app/logs
+      - backend-temp:/app/temp
+      - backend-node-modules:/app/node_modules
       - ~/.mc:/home/nodejs/.mc:ro
     depends_on:
       - redis
     networks:
       - minio-webui-network
-    command: npm run dev
 
   frontend:
     build:
@@ -68,6 +72,12 @@ services:
 volumes:
   redis-data:
     driver: local
+  backend-logs:
+    driver: local
+  backend-temp:
+    driver: local
+  backend-node-modules:
+    driver: local
 
 networks:
   minio-webui-network:

docker/Dockerfile.backend

@@ -21,14 +21,10 @@ COPY . .
 RUN addgroup -g 1001 -S nodejs && \
     adduser -S nodejs -u 1001
 
-# Create logs directory with proper permissions
-RUN mkdir -p logs && \
+# Create necessary directories with proper permissions
+RUN mkdir -p logs temp && \
     chown -R nodejs:nodejs /app && \
-    chmod 755 logs
-
-# Copy and set permissions for entrypoint
-COPY docker-entrypoint.sh /usr/local/bin/
-RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+    chmod 755 logs temp
 
 # Switch to non-root user
 USER nodejs
@@ -37,4 +33,4 @@ USER nodejs
 EXPOSE 3000
 
 # Start the application
-ENTRYPOINT ["docker-entrypoint.sh"]
+CMD ["node", "src/app.js"]

docker/Dockerfile.backend.dev

@@ -0,0 +1,41 @@
+FROM node:20-alpine
+
+# Install MinIO client
+RUN wget https://dl.min.io/client/mc/release/linux-amd64/mc && \
+    chmod +x mc && \
+    mv mc /usr/local/bin/
+
+# Install development dependencies
+RUN apk add --no-cache bash
+
+# Create app directory
+WORKDIR /app
+
+# Create non-root user (same UID/GID as most development systems)
+RUN addgroup -g 1000 -S nodejs && \
+    adduser -S nodejs -u 1000 -G nodejs
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies as root
+RUN npm install
+
+# Create necessary directories
+RUN mkdir -p logs temp && \
+    chmod 755 logs temp
+
+# Copy application files
+COPY . .
+
+# Change ownership of everything to nodejs user
+RUN chown -R nodejs:nodejs /app
+
+# Switch to non-root user
+USER nodejs
+
+# Expose port
+EXPOSE 7510
+
+# Start the application in development mode
+CMD ["npm", "run", "dev"]