inovex Meetup: Let´s talk about docker! Speaker: Johannes Scheuermann, inovex GmbH Karlsruhe, 18.12.2014 Mehr Meetups: http://www.meetup.com/inovex-karlsruhe http://www.meetup.com/inovex-cologne http://www.meetup.com/inovex-munich

1. Hands On - Docker
CoreOS - Docker - Kubernetes
Deployment with Foreman
Johannes Maximilian Scheuermann
Karlsruhe, 18.12.2014

2. „Docker (container engine) logo“ von dotCloud, Inc. - http://www.docker.io/static/img/docker-top-logo.png. Lizenziert unter Apache License, Version 2.0 über Wikimedia Commons - http://commons.wikimedia.org/wiki/File:Docker_
(container_engine)_logo.png#mediaviewer/File:Docker_(container_engine)_logo.png
Agenda
‣ Architecture
‣ CoreOS
‣ Kubernetes
‣ Panamax
‣ Deployment

3. Orchestrator
images: Docker Press kit, CoreOS Press kit and https://github.
com/GoogleCloudPlatform/kubernetes/blob/master/logo.png
Architecture
Abstract View
Container
etcd ClusterWorker Cluster

4. Worker Cluster
Architecture
MiniRZ
etcd Cluster
e1 e2
e3
w2
w3
API Cluster
a1 a2
a3
Overlay network
role=etcd
role=kube-api
role=kube-worker
Kubernetes-
Client
w1
Secured communication
via token or TLS

5. A Deeper look

6. image: https://coreos.com/assets/images/media/Host-Diagram.png
CoreOS
● ChromeOS Fork
● Minimal Linux – uses ~40% less RAM
● Painless update – update OS as single unit
● Docker Container
● Clustered By Default
● Cluster Management with fleet
● Service Discovery with etcd
● Systemd as init-system
Linux for Massive Server Deployments

7. Image: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/logo.png
Kubernetes
● Greek for pilot or helmsman of a ship
● Open Source cluster manager from Google
● Managing containerized applications across a cluster of nodes
● Kubernetes is lean, portable, extensible and self-healing
● Works with etcd
● Has Master and Minion components
● Easy Service deployments, updates and scalability
● Can run basically on every Linux platform
Managing Container

8. image: https://github.com/GoogleCloudPlatform/kubernetes/blob/master/docs/architecture.png
Kubernetes
Architecture

9. Containerception

10. images: http://panamax.io/
Panamax
Docker Management for Humans
● Open Source Project to deploy
complex containerized Applications
● Build on top of Kubernetes or fleet
● Web-GUI with drag and drop
● Separated in an UI and Remote-Agent

11. image: https://raw.githubusercontent.com/theforeman/foreman-graphics/master/logo/foreman_medium.png
Foreman
Provisioning Tool
“Foreman is an open source project that gives system administrators the
power to easily automate repetitive tasks, quickly deploy applications, and
proactively manage servers, on-premises or in the cloud”
● Discover, provision and upgrade your entire bare-metal infrastructure
● Create and manage instances across private and public clouds
● Group your hosts and manage them in bulk, regardless of location
● Review historical changes for auditing or troubleshooting
● Extend as needed via a robust plugin architecture
● Automatically build images (on each platform) per system definition
to optimize deployment

12. Let’s Deploy some

13. Image: https://github.com/docker/swarm/blob/master/logo.png
Docker Tools
● Docker Machine
○ Create Docker hosts on local hypervisors and cloud providers
● Swarm
○ A Docker-native clustering system
● Compose:
○ Assemble Docker multi-container distributed apps

14. Kontakt
Johannes Maximilian Scheuermann
johannes.scheuermann@inovex.de
inovex GmbH
Office Karlsruhe
Ludwig-Erhard-Allee 6
76131 Karlsruhe
Thank you for listening!