Docker Machine and Swarm on OpenNebula

Javi Fontán

OpenNebula Project Engineer

© OpenNebula Project. Creative Commons Attribution-NonCommercial-ShareAlike License

Docker and OpenNebula

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#1 - Docker Hypervisor

Docker as a Hypervisor

OpenNebula VM ⇔ Docker…

But, what happens with the Docker Catalog?

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#2 - Distribute OpenNebula in Docker

Distribute OpenNebula in Docker

Solves many packaging problems...

But it creates a lot of new ones!

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#3 - Docker-Machine + OpenNebula

Integrate with Docker-Machine

Use OpenNebula transparently to deploy your Docker host.

Switch between your docker hosts.

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#3 - Docker-Machine + OpenNebula - Understand

Docker-Machine Purpose

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Docker Client

Public Cloud

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#3 - Docker-Machine + OpenNebula - Images

Boot2Docker

Lightweight Linux distribution based on Tiny Core Linux made specifically to run Docker containers.

http://boot2docker.io

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#3 - Docker-Machine + OpenNebula - Requirements

Requirements

● Desktop/Laptop access to OpenNebula CLI● Image for Docker Engine

○ https://github.com/docker/machine/blob/master/docs/drivers/os-base.md

○ http://docs.opennebula.org/stable/user/virtual_machine_setup/bcont.html

● Network for the Docker Engines● Install Docker Machine● Install OpenNebula Docker Machine driver plugin:

○ https://github.com/OpenNebula/docker-machine-opennebula/blob/master/README.md

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#3 - Docker-Machine + OpenNebula - You can try it out

Demo

https://github.com/OpenNebula/docker-machine-opennebula

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#3 - Docker-Machine + OpenNebula - Usage I/II

Usage

● --opennebula-template-name: Name of the Template

● --opennebula-template-id: ID of the Template to use

● --opennebula-cpu: CPU value for the VM

● --opennebula-dev-prefix: Dev prefix to use for the images: 'vd', 'sd',

● --opennebula-disk-resize: Size of disk for VM in MB

● --opennebula-image-id: Image ID to use as the OS

● --opennebula-image-name: Image to use as the OS

● --opennebula-image-owner: Owner of the image to use as the OS

● --opennebula-memory: Size of memory for VM in MB

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#3 - Docker-Machine + OpenNebula - Usage II/II

Usage (cont.)

● --opennebula-network-id: Network ID to connect the machine to

● --opennebula-network-name: Network to connect the machine to

● --opennebula-network-: User ID of the Network to connect the machine to

● --opennebula-ssh-user: Set the name of the SSH user

● --opennebula-vcpu: VCPUs for the VM

● --opennebula-disable-vnc: VNC is enabled by default.

● --opennebula-b2d-size: Size of the Volatile disk in MB (only for b2d)

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#4 - OneFlow + Docker - Overview

Docker Swarm

Cluster of docker containers

Elasticity policy managed by OneFlow

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#4 - OneFlow + Docker - Understand13

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#4 - OneFlow + Docker - Demo

Demo Docker Swarm

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Summary

1. Docker as a hypervisor ⇒ NO

2. Distribute OpenNebula in Docker ⇒ NO

3. Integrate with Docker-Machine ⇒ YES

4. OneFlow + Docker ⇒ WIP

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What do you think?16

?What integration did you have in mind?

How do you use docker and how do you envision its integration with OpenNebula?

Is there any other you-should-absolutely-integrate-with-this-project we are missing?

25 - 27 October 2016

in BARCELONA

OpenNebula CONFERENCE4th edition

OpenNebula.org

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