OpenNebulaconf2017US: Using docker with OpenNebula by Jaime Melis, OpenNebula

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Introduction to OpenNebula’s integration with Docker-Machine, or how to run dockers in your Cloud without breaking a sweat. OpenNebula works as a provider for Docker Swarm, which enables a user friendly Docker development workflow that abstracts the developer from the IaaS requirements. In this talk we will also discuss the current integration with Rancher. We will end with an open discussion about what the future awaits for Docker in OpenNebula.

Technologie

Jaime Melis
OpenNebula Systems Infrastructure Engineer
@j_melis
jmelis@opennebula.org
OpenNebula and Docker

Docker and OpenNebula
Virtual Machine
Docker Host
Virtual Machine
Docker Host

© OpenNebula Systems SL
Developer
● Docker workflow
● Doesn't know the underlying infrastructure
Devops
● Needs "infinite" or "cloud" resources
● Uses VMs to deploy Dockers
○ Better control, security
○ Leverage virtualization technologies
● Multi-tenancy layer
Docker and OpenNebula

© OpenNebula Systems SL
Deploy a Docker Host in OpenNebula
Docker Machine

© OpenNebula Systems SL
Docker-Machine Purpose
Docker Client
Public Cloud
Docker Machine

© OpenNebula Systems SL
Lightweight Linux distribution based on Tiny
Core Linux made specifically to run Docker
containers.
http://boot2docker.io
Boot2Docker

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Docker-Machine + OpenNebula - Requirements
Requirements
● Desktop/Laptop access to OpenNebula CLI
● Image for Docker Engine
● Install Docker Machine
● Install OpenNebula Docker Machine driver plugin:
https://github.com/OpenNebula/docker-machine-opennebula

Docker-Machine + OpenNebula - You can try it out
Demo
https://github.com/OpenNebula/
docker-machine-opennebula

© OpenNebula Systems SL
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

© OpenNebula Systems SL
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)

© OpenNebula Systems SL
OneFlow + Docker - Overview
Docker Swarm
Cluster of docker containers
Elasticity policy managed by OneFlow

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OneFlow + Docker - Understand

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Rancher
Simple, easy-to-use container management
DEMO

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Docker Machine & OpenNebula
If it supports
Then it supports

© OpenNebula Systems SL
Third Party Integrations
OneDock: Docker support for OpenNebula
This project intends to provide support for OpenNebula to create Docker
containers and deliver them to the end user as if they were Virtual Machines.
https://github.com/indigo-dc/onedock

© OpenNebula Systems SL
Third Party Integrations
LXDOne: Docker support for OpenNebula
LXDoNe is an addon for OpenNebula to manage LXD Containers. It fits in the
Virtualization and Monitorization Driver section according to OpenNebula's
Architecture.
https://github.com/OpenNebula/addon-lxdone

© OpenNebula Systems SL
Third Party Integrations
Corona: Distribute OpenNebula in Docker containers
CORONA is a containerized OpenNebula deployment. The primary goal is to
build a OpenNebula deployment which can easily be rolled out or rolled back. At
the moment the plan is to split the services into 3 containers libvirt, onenode,
and oneserver.
https://github.com/fasrc/corona

THANKS!
OpenNebulaConf 2017 US
5th
edition

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