Docker functionality
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63
.dockerignore
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.dockerignore
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# Python
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__pycache__/
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*.py[cod]
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*$py.class
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*.so
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.Python
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build/
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develop-eggs/
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dist/
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downloads/
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eggs/
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.eggs/
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lib/
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lib64/
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parts/
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sdist/
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var/
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wheels/
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*.egg-info/
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.installed.cfg
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*.egg
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# Virtual environments
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.venv/
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venv/
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ENV/
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env/
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# IDE
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.vscode/
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.idea/
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*.swp
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*.swo
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# OS
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.DS_Store
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Thumbs.db
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# Git
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.git/
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.gitignore
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# Logs
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logs/
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*.log
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# Cache
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cache/
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# Testing
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.pytest_cache/
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.coverage
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htmlcov/
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# Documentation
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docs/_build/
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# Docker
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Dockerfile*
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docker-compose*.yml
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.dockerignore
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README-Docker.md
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deploy.sh
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48
Dockerfile
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48
Dockerfile
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# Use Python 3.11 slim image
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FROM python:3.11-slim
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# Set environment variables
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ENV PYTHONUNBUFFERED=1
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ENV PYTHONDONTWRITEBYTECODE=1
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ENV FLASK_ENV=production
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ENV FLASK_SECRET=production-secret-change-me
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# Install system dependencies
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RUN apt-get update && apt-get install -y \
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gcc \
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default-libmysqlclient-dev \
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pkg-config \
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curl \
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&& rm -rf /var/lib/apt/lists/*
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# Create app directory
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WORKDIR /app
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# Copy requirements first for better caching
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COPY requirements.txt .
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# Install Python dependencies
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RUN pip install --no-cache-dir -r requirements.txt
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# Copy application code
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COPY . .
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# Create necessary directories
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RUN mkdir -p cache logs
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# Expose port
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EXPOSE 8000
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# Health check
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HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
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CMD curl -f http://localhost:8000/ || exit 1
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# Copy entrypoint script
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COPY docker-entrypoint.sh /usr/local/bin/
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RUN chmod +x /usr/local/bin/docker-entrypoint.sh
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# Set entrypoint
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ENTRYPOINT ["docker-entrypoint.sh"]
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# Run gunicorn
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CMD ["gunicorn", "--config", "gunicorn.conf.py", "web.app:app"]
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176
README-Docker.md
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176
README-Docker.md
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# Jobs App - Docker Deployment
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This application is a Craigslist job scraper with a Flask web interface.
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## Quick Start with Docker
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### Prerequisites
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- Docker
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- Docker Compose
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### Deployment
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1. **Clone the repository and navigate to the project directory**
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```bash
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cd /path/to/jobs-app/jobs
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```
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2. **Start the application**
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```bash
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docker-compose up --build -d
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```
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3. **Wait for services to be ready** (about 30 seconds)
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```bash
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# Check if the app is running
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curl http://localhost:8000
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```
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4. **Access the application**
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- Main app: http://localhost:8000
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- Admin interface: http://localhost:8000/admin/users
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- Username: `admin`
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- Password: `M11ffpgm.`
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- Scraper interface: http://localhost:8000/scrape-page
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## Docker Architecture
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### Services
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- **jobs-app**: Flask application with Gunicorn WSGI server
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- **mysql**: MySQL 8.0 database
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### Ports
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- 8000: Flask application
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- 3306: MySQL database (exposed for external access if needed)
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### Volumes
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- `mysql_data`: Persistent MySQL data storage
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## Configuration
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### Environment Variables
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- `FLASK_ENV`: Set to `production`
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- `FLASK_SECRET`: Secret key for Flask sessions
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### Database Configuration
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The database configuration is in `config/settings.json`:
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```json
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{
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"database": {
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"mysql": {
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"host": "mysql",
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"user": "jobs",
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"password": "jobdb",
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"database": "jobs",
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"port": 3306
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}
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}
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}
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```
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## Useful Commands
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```bash
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# View logs
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docker-compose logs -f
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# Stop services
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docker-compose down
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# Restart services
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docker-compose restart
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# Rebuild and restart
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docker-compose up --build
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# View running containers
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docker-compose ps
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# Execute commands in the app container
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docker-compose exec jobs-app bash
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# Check database
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docker-compose exec mysql mysql -u jobs -p jobs
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```
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## Production Considerations
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1. **Security**:
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- Change default passwords in `docker-compose.yml`
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- Use environment variables for secrets
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- Configure proper firewall rules
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2. **Scaling**:
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- Adjust Gunicorn workers in `gunicorn.conf.py`
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- Consider using a reverse proxy (nginx)
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- Implement proper logging and monitoring
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3. **Database**:
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- Use external MySQL for production
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- Configure backups
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- Set up connection pooling
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4. **Networking**:
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- Use proper domain names
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- Configure SSL/TLS
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- Set up load balancing if needed
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## Troubleshooting
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### Common Issues
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1. **Port conflicts**: Change ports in `docker-compose.yml`
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2. **Database connection**: Ensure MySQL container is healthy
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3. **Memory issues**: Increase Docker memory limits
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4. **Permission issues**: Check file permissions in mounted volumes
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### Logs
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```bash
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# Application logs
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docker-compose logs jobs-app
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# Database logs
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docker-compose logs mysql
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# All logs
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docker-compose logs
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```
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## Development
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For development with hot reload:
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```bash
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# Run in development mode
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docker-compose -f docker-compose.dev.yml up --build
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```
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Create `docker-compose.dev.yml`:
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```yaml
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version: "3.8"
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services:
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jobs-app:
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build: .
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ports:
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- "8000:8000"
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environment:
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- FLASK_ENV=development
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volumes:
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- .:/app
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command: ["flask", "run", "--host", "0.0.0.0", "--port", "8000"]
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```
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41
deploy.sh
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41
deploy.sh
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#!/bin/bash
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# Deployment script for Jobs App
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set -e
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echo "🚀 Starting Jobs App deployment..."
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# Check if Docker is installed
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if ! command -v docker &> /dev/null; then
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echo "❌ Docker is not installed. Please install Docker first."
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exit 1
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fi
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# Check if docker-compose is installed
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if ! command -v docker-compose &> /dev/null; then
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echo "❌ docker-compose is not installed. Please install docker-compose first."
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exit 1
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fi
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echo "📦 Building and starting services..."
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docker-compose up --build -d
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echo "⏳ Waiting for services to be ready..."
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sleep 30
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echo "🔍 Checking service health..."
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if curl -f http://localhost:8000/ &> /dev/null; then
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echo "✅ Jobs App is running successfully!"
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echo "🌐 Access the application at: http://localhost:8000"
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echo "📊 Admin interface: http://localhost:8000/admin/users (login: admin/M11ffpgm.)"
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echo "🔄 Scraper interface: http://localhost:8000/scrape-page"
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else
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echo "❌ Jobs App failed to start. Check logs with: docker-compose logs"
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exit 1
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fi
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echo "📋 Useful commands:"
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echo " View logs: docker-compose logs -f"
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echo " Stop services: docker-compose down"
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echo " Restart: docker-compose restart"
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echo " Rebuild: docker-compose up --build"
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39
docker-compose.yml
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39
docker-compose.yml
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version: "3.8"
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services:
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jobs-app:
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build: .
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ports:
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- "8000:8000"
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environment:
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- FLASK_ENV=production
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- FLASK_SECRET=production-secret-change-me
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depends_on:
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- mysql
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networks:
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- jobs-network
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restart: unless-stopped
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mysql:
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image: mysql:8.0
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environment:
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- MYSQL_ROOT_PASSWORD=rootpassword
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- MYSQL_DATABASE=jobs
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- MYSQL_USER=jobs
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- MYSQL_PASSWORD=jobdb
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ports:
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- "3306:3306"
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volumes:
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- mysql_data:/var/lib/mysql
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- ./mysql-init:/docker-entrypoint-initdb.d
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networks:
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- jobs-network
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restart: unless-stopped
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command: --default-authentication-plugin=mysql_native_password
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volumes:
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mysql_data:
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networks:
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jobs-network:
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driver: bridge
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35
docker-entrypoint.sh
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35
docker-entrypoint.sh
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#!/bin/bash
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# Docker entrypoint script for Jobs App
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set -e
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echo "🚀 Starting Jobs App container..."
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# Wait for MySQL to be ready
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echo "⏳ Waiting for MySQL to be ready..."
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while ! mysqladmin ping -h mysql -u jobs -pjobdb --silent; do
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echo "MySQL is not ready, waiting..."
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sleep 2
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done
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echo "✅ MySQL is ready!"
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# Run database setup
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echo "🗄️ Setting up database..."
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python setup.py mysql-init
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# Seed initial data if needed
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echo "🌱 Seeding initial data..."
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python -c "
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from web.db import db_init
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from web.utils import initialize_users_from_settings
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db_init()
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try:
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initialize_users_from_settings()
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print('✅ Users seeded successfully')
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except Exception as e:
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print(f'⚠️ User seeding failed: {e}')
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"
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echo "🎯 Starting Gunicorn server..."
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exec "$@"
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38
gunicorn.conf.py
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38
gunicorn.conf.py
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# Gunicorn configuration file
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import multiprocessing
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# Server socket
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bind = "0.0.0.0:8000"
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backlog = 2048
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# Worker processes
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workers = multiprocessing.cpu_count() * 2 + 1
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worker_class = "sync"
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worker_connections = 1000
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max_requests = 1000
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max_requests_jitter = 50
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timeout = 30
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keepalive = 2
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# Logging
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loglevel = "info"
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accesslog = "-"
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errorlog = "-"
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# Process naming
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proc_name = "jobs_app"
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# Server mechanics
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daemon = False
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pidfile = "/tmp/gunicorn.pid"
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user = None
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group = None
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tmp_upload_dir = None
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# SSL (if needed)
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keyfile = None
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certfile = None
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# Application
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wsgi_module = "web.app:app"
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callable = "app"
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