Introduction Docker for Hardware Company

Evan Lin

Agenda

❖ Comparison between Docker and VM

❖ Docker Architect

❖ Some examples

❖ Limitations

❖ How to use docker in our daily work

❖ Q&A

Docker Architecture

Docker

Dockerfile Docker Image

containerbuild run

download image

update

Some examples

❖ Run docker for launch server in second.

❖ Run docker for compiling modules

❖ Build docker image and run container

Example 1: Establish a LAMP in second

docker run -d -p 49001:80 dockerfiles/centos-lamp

Example 1.5: Run second LAMP in the same computer

❖ How much time do we need to launch second LAMP server in VM?

❖ How much time do we need to launch second LAMP server in Docker?

Example 1.5: Run second LAMP in the same computer

http://evan:49002http://evan:49001

49002:8049001:80

< 1 Second !

Run VM for compiling modules

PHP 5

Python2

Python3

GCC 4.8

GCC 5.2

PHP 7

Original way in VM

Run docker for compiling modules

New way in Docker

gcc 5.2gcc 4.8

resultresult

Run docker for compiling modules

New way in Docker

Ubuntu 15.01 g++ cmake

mount volume

Windows 10

Build docker image and run container

Dockfiles Image Container

Build docker image and run container (ex: Linux App)

write Dockfiles

run image as Container

build docker Image

Build docker image and run container (ex: Linux App)

run sh in Docker Container

Limitations

❖ No Windows/Mac Image and Container for now

❖ Run on Windows/Mac will launch another ubuntu VM which still limited its memory and CPU

How to use docker in our daily work

❖ Using dockerfile to store image in Gitlab for CI

❖ Ensure your computer (Host) stay in clean stage

❖ It is very easy to deliver build environment to another college/vendor by passing dockerfile.

Example: Ensure isolate host environment

gcc 5.2gcc 4.8 gcc + Android NDK Go 1.5

Ubuntu 15.01 + Only install Docker

Example: Use docker in JNI C++ Library

Original way

Ubuntu 15.01 Android NDK

Cmakeg++

Example: Use docker in JNI C++ Library

Ubuntu 15.01 + Android NDK Ubuntu 15.01 + cmake + g++

New way in Docker

Example: Use docker in JNI C++ Library (Dockerfile)

Dockerfile: Ubuntu 15.01 + cmake + g++

Q&A