Refactor Docker configuration to follow 2025 industry best practices

## Major Refactoring Based on Research:

### ❌ **Removed Over-Engineered Approach**:
- Removed `gosu` dependency (unnecessary complexity)
- Removed complex user switching in entrypoint
- Removed root operations during runtime
- Simplified permission management

### ✅ **Implemented 2025 Best Practices**:

#### 1. **Simplified Dockerfile Pattern**:
- Create directories with proper ownership in build stage
- Set `USER django` once and keep it throughout
- No complex user switching or runtime permission changes
- Clean, standard Docker layering

#### 2. **Industry-Standard Entrypoint**:
- Simple script that runs as non-root user
- Standard `exec "$@"` pattern
- No permission operations during runtime
- Follows container orchestration best practices

#### 3. **Proper Architecture Documentation**:
- Django/Gunicorn for dynamic content only
- Nginx serves static files (6000+ req/sec vs Django's much lower)
- Non-root user throughout for security
- Clean service separation

## Benefits of This Approach:
- ✅ **Security**: Non-root user throughout application lifecycle
- ✅ **Simplicity**: Standard Docker patterns, no complex scripts
- ✅ **Performance**: Nginx handles static files efficiently
- ✅ **Maintainability**: Follows industry conventions
- ✅ **Reliability**: Proven patterns used by major companies

## Research Sources:
Based on 2025 best practices from:
- TestDriven.io Django Docker patterns
- Better Stack community guides
- Official Django deployment documentation
- Docker security best practices

This follows the KISS principle while maintaining production-grade security and performance.

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

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

DOKPLOY.md

@@ -214,6 +214,14 @@ python manage.py collectstatic --noinput
 
 ## 🔧 Important Configuration Notes
 
+### **Architecture Overview (2025 Best Practices)**
+This Django template follows industry-standard Docker patterns:
+- **Django/Gunicorn**: Handles dynamic content only
+- **Nginx**: Serves static/media files directly (6000+ req/sec performance)
+- **Non-root user**: Application runs as `django` user for security
+- **Shared volumes**: Static files accessible to both Django and Nginx
+- **Clean separation**: Database, cache, web app as separate services
+
 ### **Unique Identifiers**
 - Replace `django-app-UNIQUE` with a unique name like `django-app-prod-2025`
 - This prevents conflicts with other services
@@ -253,10 +261,11 @@ If you see error: `FileNotFoundError: [Errno 2] No such file or directory: '/var
 ### **Static Files Permission Error**
 If you see error: `PermissionError: [Errno 13] Permission denied: '/app/staticfiles/js'`
 
-**Solution**: This is fixed in the latest version by:
+**Solution**: Following 2025 Docker best practices:
-- Creating static directories with proper permissions in Dockerfile
+- Directories created in Dockerfile with proper ownership (`chown -R django:django /app`)
-- Ensuring directories exist before collecting static files in entrypoint.sh
+- Application runs as non-root user throughout (security best practice)
-- Using proper Docker user permissions for file operations
+- Docker volumes provide persistent storage for static/media files
+- Nginx serves static files directly for optimal performance
 
 ### **Domain Not Accessible**
 ```bash

Dockerfile

@@ -10,7 +10,6 @@ RUN apt-get update \
         libpq-dev \
         gettext \
         curl \
-        gosu \
     && curl -fsSL https://deb.nodesource.com/setup_18.x | bash - \
     && apt-get install -y nodejs \
     && rm -rf /var/lib/apt/lists/*
@@ -40,13 +39,11 @@ RUN groupadd -r django && useradd -r -g django django
 
 COPY . /app/
 
-# Create directories that need write permissions  
+# Create directories and set ownership - industry best practice
 RUN mkdir -p /app/staticfiles /app/media && \
-    chmod -R 755 /app/staticfiles /app/media && \
     chown -R django:django /app
 
-# Don't switch to django user yet - let entrypoint handle permissions
+USER django
-# USER django
 
 EXPOSE 8000
 

entrypoint.sh

@@ -5,12 +5,6 @@ set -e
 echo "Waiting for PostgreSQL..."
 sleep 5
 
-echo "Setting up directories and permissions..."
-# Create directories and set proper permissions
-mkdir -p /app/staticfiles /app/media
-chown -R django:django /app/staticfiles /app/media
-chmod -R 755 /app/staticfiles /app/media
-
 echo "Running migrations..."
 python manage.py migrate --noinput
 
@@ -23,6 +17,5 @@ python manage.py setup_social_apps
 echo "Collecting static files..."
 python manage.py collectstatic --noinput
 
-echo "Switching to django user and starting application..."
+echo "Starting application..."
-# Switch to django user for the main application
+exec "$@"
-exec gosu django "$@"