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46c3b2 MB Tech 2025-07-28 01:34:55 1 
# Docker
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## Why Docker?
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Docker provides a convenient and efficient way to package, distribute, and manage applications. Our focus on Docker containers aims to simplify your tech journey, offering easy-to-follow guides and practical tips for deployment and maintenance.
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### Key Benefits
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- **Consistency**: Run applications in the same environment across different machines
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- **Isolation**: Keep applications and their dependencies separate
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- **Portability**: Deploy anywhere that runs Docker
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- **Resource Efficiency**: Use system resources more effectively than traditional VMs
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- **Quick Deployment**: Spin up containers in seconds
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- **Version Control**: Easy rollback and update procedures
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- **Scalability**: Scale applications up or down easily
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## Prerequisites
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Before getting started with Docker, ensure you have:
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1. A system running Linux, Windows, or macOS
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2. Docker Engine installed
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3. Docker Compose installed (comes with Docker Desktop)
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4. Basic understanding of command line operations
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5. Sufficient system resources for your containers
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## Basic Docker Commands
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```bash
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# List running containers
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docker ps
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# List all containers (including stopped)
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docker ps -a
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# Pull an image
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docker pull <image-name>
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# Start a container
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docker start <container-name>
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# Stop a container
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docker stop <container-name>
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# Remove a container
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docker rm <container-name>
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# View container logs
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docker logs <container-name>
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```
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## Docker Compose
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Docker Compose is our preferred method for container deployment. It allows you to:
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- Define multi-container applications
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- Store configuration in version control
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- Single command to start all services
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- Manage complex container relationships
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### Basic Docker Compose Commands
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```bash
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# Start services
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docker compose up -d
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# Stop services
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docker compose down
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# View logs
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docker compose logs
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# Update containers
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docker compose pull
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docker compose up -d
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```
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## Available Containers
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Check out the compose files that I have setup and tested below. While there are thousands of Docker containers available, these are the ones I've personally verified and found useful for homelab setups:
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[[Docker Compose Files]]
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Each container in our collection includes:
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- Detailed setup instructions
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- Docker Compose configuration
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- Port requirements
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- Volume mappings
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- Environmental variables
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- Common troubleshooting tips
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## Best Practices
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1. **Security**:
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- Never run containers as root
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- Keep images updated
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- Use official images when possible
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- Implement proper network isolation
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2. **Performance**:
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- Monitor resource usage
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- Use volume mounts for persistent data
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- Implement proper logging
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- Regular cleanup of unused images/containers
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3. **Maintenance**:
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- Regular backups of container data
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- Keep Docker Engine updated
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- Monitor container health
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- Use container restart policies
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## Troubleshooting
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Common issues and solutions:
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1. **Container Won't Start**:
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- Check logs: `docker logs <container-name>`
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- Verify port availability
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- Check volume permissions
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- Validate compose file syntax
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2. **Performance Issues**:
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- Monitor resource usage
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- Check for memory leaks
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- Verify network connectivity
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- Review container logs
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3. **Storage Problems**:
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- Clean up unused images
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- Remove old containers
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- Verify disk space
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- Check volume mounts
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## Additional Resources
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- [Official Docker Documentation](https://docs.docker.com/)
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- [Docker Hub](https://hub.docker.com/)
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- [Docker Compose Documentation](https://docs.docker.com/compose/)
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- [Docker Security Guidelines](https://docs.docker.com/engine/security/)
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Explore these pages to find detailed information, Docker Compose files, and setup guides for each container.