The document discusses a comparison between Docker and LXD during the OpenNebula Tech Day on May 23, 2017. It highlights key features, advantages, and use cases for each technology, including Docker's app encapsulation and LXD's resource management capabilities. The session also mentioned future improvements such as VNC support and resource migrations.

1. Civil War: Docker vs LXD
OpenNebula Tech Day
May 23 2017

2. Timeline

3. Virtual Machines vs Containers

4. Virtual Machines
 OS Flexibility
 Better level of Isolation
 Configuration in boot time

5. Containers

6. So, which Technology do I have to use?

7. Docker
• 1200 Contributors
• 100.000 Applications
• About 4 Million users
• 300 Million downloads

8. Docker
• App
Encapsulation
• Lightweight
• Simple
• Community

9. Docker HUB

10. LXD
• Layer on top of LXC
• Better user
experience
• Runs other Linux
Distribution on ubuntu
host

11. LXD acts as a Virtual Machine
• Lightweight
• Density
• Resources Management
• Supports Migration
• Snapshots

12. LXD Resource limits
• Disk (ZFS & brtfs)
• CPU (Pinning, %CPU time, Specifiy CPU Time)
• Memory (Hard and Soft)
• Network I/O
• Block I/O

13. LXD Image Management
• 170 images available
• No public image repository
• Able to save your custom images in a private
repository

14. Docker vs LXD?
• VM alternative
• Multiple Process Container
• Operating System
• Online Resource Control
• IaaS
• App Encapsulation
• Single Process container
• Development
• HUB
• PaaS

15. OpenNebula Integration
• OneDock
• Docker Machine
• LXDoNe (Demo)

16. Future Improvements
• VNC Support
• Migrations
• Online resources
• Snapshots

17. Questions?
Xavier Peralta Ramos
xavier.peralta@csuc.cat
@xpr_85