docker 101 in developer view

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From Developer View

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Containerization

Docker != Containers

Docker manages Containers

Build images to run as containers

Manage applications with docker compose

Provision machines with docker machine

Containers

Share the kernel of host system

Isolated from other containers

Fast boot time and Low overhead

C O N TA I N E R R U N T I M E E N G I N E

Start with containersseem more complex !!

BUTreduce time to run your app

BUTless time to provisioning

and rebooting

BUTeasy to manage dependencies

BUTuse multiple language/version without hacking or additional tools

BUTuse the same OS in production

BUTeasy to deploy

Docker Images

Image vs Container

Image like a classContainer is a instance of class

Create my image

Create a Dockerfile

$docker build -t <image name> . \$docker images$docker commit$docker push$docker pull

Docker Hub

> Many imagesService, Project base & Official

Docker Composeto build

Docker Compose

Use a Dockerfile to define your app’s env

Define services of your app in docker-compose.yml

Start and run with$docker-compose up

Dockerfile

docker-compose.ml

Web Architecture

$docker-compose up

Building web app with Docker

Install docker

Docker Machine

Easy way to create dev & testing machine

from your local command line

$docker-machine create <name> --driver virtualbox

Running multi-Containerwith Docker compose

My Goals

Run web app in a container

Developer can ::• open app in browser• modify in a local and see the changes• focus on software development

Docker Compose

Makes it easy

Demo time

Docker System

Change/Update

Incremental Development

Docker expertexp 3-5 years

Docker released 2013 !!

Docker expertexp 3-5 years

Resources

https://github.com/up1/docker_101

docker 101 in developer view

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