Getting started with Docker on Scaleway / Online Labs C1 --- Our cloud is based on dedicated servers without any software virtualization. Off-the-shelf servers were not suitable for this vision of the cloud. Hence, we designed our own hardware during 2 years from our headquarters in Paris and built it in our factory in France. 912 physical servers (3648 cores) + 48 switches + 288 HDD/SSD in a single rack ! Online Labs: http://labs.online.net

1. Une
gomme.
Getting started with
Docker on Online Labs C1
Manfred Touron - @moul
Sébastien Rannou - @aimxhaisse

2. • Dedicated ARM servers
• Run in the Cloud
• Ultra high-density (912 servers per rack)
• Developed / Made / Running in France
What is Online Labs’ C1 ?

3. 4 true cores
ARMv7 CPU
2GB of RAM
1 Gbit/s network link
SSD storage
C1 Server

4. 1 x C1 node
• 4-cores
• 2Gb memory
• 1Gbps Ethernet
• SSD disk over network

5. =19 x C1 nodes
• 18 compute nodes
• 1 SAN node + 6 disks
• 1 managed switch
• 10gbps connectivity
• serial multiplexer
1 x C1 blade 76 cores
38G ram

6. • 16 blades per chassis
• 3 chassis per rack
• “hot-plug”
• > 2000 leds :)
• 33ºC
= 912 x C1 nodes
3.6k cores
1.8T ram
288 disks
= 48 x C1 blades
= 3 x C1 chassis
1 x C1 rack

7. Mainline Linux v3.17 kernel
armel/armhf linux distributions
Ubuntu (from 14.04) - Fedora 20 - Debian 7 - Gentoo
InstantApps: Docker, Wordpress, Pydio, Owncloud, Ghost
What runs on C1

8. • All features supported
• Storage drivers: AUFS, BTRFS, DeviceMapper
• cgroups, volumes, ports, links
• fig, nsenter, gosu and pipework are installed by default
Docker + C1

9. We ported the distrib images to armhf
The registry doesn’t care about the architecture
Prefixing all our images (armbuild/)
Docker image -> single architecture

10. FROM ubuntu:trusty
Becomes
FROM armbuild/ubuntu:trusty
Porting a Docker image
github.com/moul/port-docker-image

11. Distribs: ubuntu, debian, fedora, busybox
Langs: go, ruby, python, …
Apps: redis, rabbitmq, mysql, …
(> 100 ported images)
Ported images
registry.hub.docker.com/armbuild - github.com/armbuild

12. Port more distribution images: centos, archlinux
Work on trusted builds for ARM images (partial support)
Port a Docker-based PAAS (dokku, flynn, mesos, coreos …)
Work on multi-architecture / cross-platform images
What we are working on
registry.hub.docker.com/armbuild - github.com/armbuild

13. Joyeux Noël
……………….