Benjamin Diedrichsen
60 lines
2.1 KiB
Markdown
60 lines
2.1 KiB
Markdown
# docker
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**Install Docker and tools**
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## Purpose
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This cube installs Docker Engine, Docker Compose, and popular Docker management tools to enable containerized application deployment and management.
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## What is Docker?
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Docker is a platform for developing, shipping, and running applications in containers. Containers package an application with all its dependencies, ensuring it runs consistently across different environments.
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Key benefits:
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- **Isolation**: Each container runs independently with its own filesystem, network, and processes
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- **Portability**: Containers run the same way on any system that supports Docker
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- **Efficiency**: Containers share the host OS kernel, making them lighter than virtual machines
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- **Scalability**: Easily deploy and scale containerized applications
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## What This Cube Does
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1. **Adds Docker's official repository**
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- Downloads and installs Docker's GPG key
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- Configures APT to use Docker's official package repository
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2. **Installs Docker components**
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- `docker-ce` - Docker Community Edition engine
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- `docker-ce-cli` - Command-line interface for Docker
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- `containerd.io` - Container runtime
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- `docker-buildx-plugin` - Extended build capabilities with BuildKit
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- `docker-compose-plugin` - Tool for defining multi-container applications
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3. **Installs management tools**
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- **lazydocker** - Terminal UI for Docker and Docker Compose management
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- **docker-ctop** - Container metrics and monitoring (top-like interface for containers)
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## Configuration
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This cube currently has no configurable parameters.
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## Dependencies
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None - this cube can run standalone.
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## Post-Installation
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After deployment:
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- Add users to the `docker` group to run Docker without sudo: `sudo usermod -aG docker username`
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- Start using Docker: `docker run hello-world`
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- Use lazydocker for easy management: `lazydocker`
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- Monitor containers: `ctop`
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## Notes
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The Docker daemon starts automatically on boot. You can manage it with systemd:
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- Check status: `sudo systemctl status docker`
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- Restart: `sudo systemctl restart docker`
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## Additional Resources
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- [Installation tutorial Ubuntu 24.04](https://www.cherryservers.com/blog/install-docker-ubuntu) |