This document discusses using MQTT in Docker containers on a Raspberry Pi. It begins with an introduction to using Docker on Raspberry Pi for IoT prototyping. It then discusses using GPIO pins in Docker containers to control LED blinking. It provides an overview of Docker compared to virtual machines and describes Docker layers and common Docker commands. Finally, it demonstrates using MQTT in a Docker container for IoT communication and answers some common Docker questions.

1. Use MQTT in Docker
on Raspberry Pi
Philipz
鄭淳尹

2. Docker.Taipei 共同發起人
《Docker 從入門到實踐》翻譯發起人
碁峰《Docker入門與實戰》審閱
Acer eDC, 玉山銀行資訊處, 臺北榮民總醫院
Java/Web Developer, Image Processing, Software Engineering,
Algorithmic Trading, Docker
Philipz

3. Why RPi + Docker
1st credit card-sized PC
HW/SW split….
IoT Prototype
Portable WYSIWYR
ARM is Rising!!!

4. GPIO in Docker
Control LED Blinking

5. The Martix of Hell

6. Docker is not Virtual Machine
Operating-system-level virtualization
Chroot + Cgroup + github
Golang
Container engine
Support LXC, Windows container soon

7. Docker Layers

8. Cmd Diagram
● run
● pull, push
● exec
● commit
● rm, rmi
● build, tag
● logs, stats

9. Use Scenario
Push
Pull
Commit
Deploy
IoT Device

10. Use case
● Databox - Volume container
● Development or Runtime env - Onbuild
● Computing - GPU, GPIO
● Cross-compilers, build container
● Installation container - Cmd, GUI
● Service compontents***
● VM style - bad idea

11. MQTT
From IBM
IoT Protocol
Pub/Sub, QoS
Arduino, mbed
Mosquitto, Xively

12. Demo

13. FAQ
1. How to build base image? Scratch, Github
2. Run CentOS on RPi? Docker Hub, Github
3. How to use Boot2Docker? Just use Linux
4. Why Windows support Docker?
5. Why IoT developer must learn Docker?
Device & Cloud use the same SW process
IT careers all need Docker…...

14. Thank you
Time is more precious than gold.