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Building a Docker Swarm cluster on ARM by Dieter Reuter and Stefan Scherer
The document details the process of building a Docker Swarm on ARM hardware using Raspberry Pi devices. It includes a parts list, instructions for flashing software, and commands for creating and managing a Docker Swarm cluster. Additional resources and examples are provided for further learning and project development.
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Building a Docker Swarm cluster on ARM by Dieter Reuter and Stefan Scherer
- 1. Dieter Reuter @quintus23m SeniorConsultant, SEAL Systems Stefan Scherer @stefscherer Software Engineer, SEAL Systems Building a Docker Swarm on ARM
- 2. Hardware Pi’s Switch Power supply Agenda Software SD cardimage flash docker-machine Demo docker-compose
- 3. • Education • Learningcloud principles • Hands-on cluster Why?
- 4.
- 5. Parts list For afour node swarm. • 4x Raspberry Pi 2/3 • 5 port switch with 5V • 6x USB power supply • Distant bolts 2.5mm • 4x micro USB cable • 1x 5.5mm barrel USB • 4x flat patch cable • 4x Micro SD cards Build Hardware
- 7. HypriotOS Get started withDocker in 5 minutes
- 8. For Linux andMac Small helper script to do all these in just one command: • Download the SD card image • Uncompress it • Set hostname for device • Set WiFi Flash HypriotOS
- 9. Flash HypriotOS $ flash --hostname swarm01 --ssid wifipsk --password wifipwd https://downloads.hypriot.com/hypriotos-rpi-v0.8.0.img.zip # repeat for swarm02..swarm04
- 10. Find your Pi $ping swarm01.local
- 11. Add your SSHkey $ ssh-keygen -R swarm01.local $ ssh-copy-id pirate@swarm01.local # repeat for swarm02..swarm04
- 12. … some plumbingcode $ export TOKEN=$(for i in $(seq 1 32); do echo -n $(echo "obase=16; $(($RANDOM % 16))" | bc); done; echo) $ function getip() { (traceroute $1 2>&1 | head -n 1 | cut -d( -f 2 | cut -d) -f 1) }
- 13. Create Docker Swarmmanager $ docker-machine create -d generic --engine-storage-driver=overlay --swarm --swarm-master --swarm-image hypriot/rpi-swarm:latest --swarm-discovery="token://$TOKEN" --generic-ip-address=$(getip swarm01.local) swarm01
- 14. Create Docker Swarmnodes $ docker-machine create -d generic --engine-storage-driver=overlay --swarm --swarm-image hypriot/rpi-swarm:latest --swarm-discovery="token://$TOKEN" --generic-ip-address=$(getip swarm02.local) swarm02 # repeat for swarm03..swarm04
- 15. Control your DockerSwarm $ eval $(docker-machine env --swarm swarm01) $ docker info
- 16.
- 17. • Self madecluster • Pico Cluster • BitScope Blade Your ideas? Examples
- 18. • http://blog.hypriot.com • http://picocluster.com •http://bitscope.com/product/blade Further Links
- 19.