Mobycraft - Docker in 8-bit by Aditya Gupta

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Mobycraft is a Minecraft client-side mod to manage and visualize Docker containers in Minecraft. This mod can be installed in any standard Minecraft client and allow young kids to learn Docker fundamentals in a fun way. It allowed a 13-year old boy to apply his Minecraft modding skills to pick up Docker concepts such as Engine, Machine, Swarm, and Remote API. This project became a great bonding experience between a father and a son. It allowed them to engage in fun and geeky conversations, such as code reviews and tooling discussion, and thereby building memories for a lifetime.

Technology

Mobycraft – Docker in 8-bit
Aditya
Gupta
Student and Hacker, @aditya_g

• Client-side Docker mod inspired by server-side Dockercraft
• Thanks Gaetan and Adrien
• Manage Docker containers visually using Minecraft
• Run Docker commands from the game
• Regular commands
• Convenience commands
• Add new features that simplify container management
• Blocks
• Items
• Runs from a Java development environment
• Easy to debug, test new features, and contribute
What does it do?

• Each container is a 5x5x7 box with two buttons and two signs
• Start/stop button
• Detailed information button
• Name sign
• Image sign
• Container look changes based on status
• Gray for running, red for stopped
• Container Wand for interacting with containers
• Right click on name sign to remove container
• Other modes coming soon
• Automatic container building at specified rate
Visualizing Containers

• Many common Docker commands
• /docker ps
• /docker run
• /docker images
• Convenience commands
• /docker kill_all
• /docker rm_stopped
• /docker heat_map
• /docker help for in-game help about commands
Docker commands in Minecraft

Fun stuff
Moby the 3D Minecraft whale
mascot – custom 3D model and
Netflix’s Chaos Monkey

More fun stuff
github.com/AdityaGupta1/mobycraft

• Basic Docker terminology
• Container – An application packaged so it is easy to download and run
• Docker client, host, and hub – Docker CLI (client) uses REST API to talk to the Docker
Machine (host), which gets containers and images from the Docker hub
• Docker Machine – A host for containers and the Linux virtual machines they run on
• /docker ps – A command that lists the containers on the current Docker machine and
information about them (image, ID, status, etc.)
• --help, docs.docker.com, and my dad – Where you go when you need help with Docker
• Docker Swarm – A bunch of Docker Machines that share the job of container hosting
What I learned from this project

• Some Java skills
• Access modifiers – public, private, protected, etc.
• continue; and break; statements
• Design patterns
• DRY – Don’t Repeat Yourself
• e.g. merge two if statements with the same conditional statement
• Shading JARs in Gradle
• Asynchronous callbacks
• e.g. StatisticsResultCallback class
What I learned from this project

• Docker Swarm cluster visualization and management (issue #21)
• Waiting for Docker-Java to add Swarm support
• Packaged JAR file for running in release Minecraft (#38)
• Only runs well from development environment
• Show containers from a multi-cloud Docker Swarm cluster (#8)
• Add more modes to Container Wand (#53)
• Use different Docker APIs (#66)
Upcoming features

How you can help
Any of the following feedback would be appreciated:
• Code review
• Pull requests
• Issues
• Testing in your environment
• Find bugs and file issues
• Contribute new features
GitHub repository: github.com/AdityaGupta1/mobycraft

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Mobycraft - Docker in 8-bit by Aditya Gupta

1. Mobycraft – Docker in 8-bit Aditya Gupta Student and Hacker, @aditya_g

2. Before we start… 8 5 2

3. • Client-side Docker mod inspired by server-side Dockercraft • Thanks Gaetan and Adrien • Manage Docker containers visually using Minecraft • Run Docker commands from the game • Regular commands • Convenience commands • Add new features that simplify container management • Blocks • Items • Runs from a Java development environment • Easy to debug, test new features, and contribute What does it do?

4. • Each container is a 5x5x7 box with two buttons and two signs • Start/stop button • Detailed information button • Name sign • Image sign • Container look changes based on status • Gray for running, red for stopped • Container Wand for interacting with containers • Right click on name sign to remove container • Other modes coming soon • Automatic container building at specified rate Visualizing Containers

5. • Many common Docker commands • /docker ps • /docker run • /docker images • Convenience commands • /docker kill_all • /docker rm_stopped • /docker heat_map • /docker help for in-game help about commands Docker commands in Minecraft

6. Fun stuff Moby the 3D Minecraft whale mascot – custom 3D model and Netflix’s Chaos Monkey

7. More fun stuff github.com/AdityaGupta1/mobycraft

8. • Basic Docker terminology • Container – An application packaged so it is easy to download and run • Docker client, host, and hub – Docker CLI (client) uses REST API to talk to the Docker Machine (host), which gets containers and images from the Docker hub • Docker Machine – A host for containers and the Linux virtual machines they run on • /docker ps – A command that lists the containers on the current Docker machine and information about them (image, ID, status, etc.) • --help, docs.docker.com, and my dad – Where you go when you need help with Docker • Docker Swarm – A bunch of Docker Machines that share the job of container hosting What I learned from this project

9. • Some Java skills • Access modifiers – public, private, protected, etc. • continue; and break; statements • Design patterns • DRY – Don’t Repeat Yourself • e.g. merge two if statements with the same conditional statement • Shading JARs in Gradle • Asynchronous callbacks • e.g. StatisticsResultCallback class What I learned from this project

10. Why is CLI faster than the Java API?

11. • Docker Swarm cluster visualization and management (issue #21) • Waiting for Docker-Java to add Swarm support • Packaged JAR file for running in release Minecraft (#38) • Only runs well from development environment • Show containers from a multi-cloud Docker Swarm cluster (#8) • Add more modes to Container Wand (#53) • Use different Docker APIs (#66) Upcoming features

12. How you can help Any of the following feedback would be appreciated: • Code review • Pull requests • Issues • Testing in your environment • Find bugs and file issues • Contribute new features GitHub repository: github.com/AdityaGupta1/mobycraft

13. Thank you!

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