Software InstallationWith / Without Docker

SeongJae Park <sj38.park@gmail.com>

Nice To Meet You!

SeongJae Park

Docker newbie

Using Docker *personally*

Gonna talk about my experience with Docker

Installation Without Docker

“Installed, but doesn’t works!”

Installation Without Docker

“Installed, but doesn’t works!”“Install this one and that one additionally”

http://memegenerator.net/instance/59157929http://memegenerator.net/instance/59157929

Installation Without Docker

“Installed, but doesn’t works!”“Install this one and that one additionally”“Modify the source and build it again”

http://memegenerator.net/instance/59157929http://memegenerator.net/instance/59157929

Installation Without Docker

“Installed, but doesn’t works!”“Install this one and that one additionally”“Modify the source and build it again”“Path configuration was wrong”

http://memegenerator.net/instance/59157929http://memegenerator.net/instance/59157929

Installation Without Docker

“Installed, but doesn’t works!”“Install this one and that one additionally”“Modify the source and build it again”“Path configuration was wrong”“Install another version of that”“Format and install OS again”

http://memegenerator.net/instance/59157929

Installation Without Docker“Installed, but doesn’t works!”“Install this one and that one additionally”“Modify the source and build it again”“Path configuration was wrong”“Install another version of that”“Format and install OS again”

It’s miserable experience.Finally works, but doesn’t know why...

http://memegenerator.net/instance/59157456

Installation Using Docker

1. Install Docker

Installation Using Docker

1. Install Docker2. Get Docker image or Dockerfile for the app

https://registry.hub.docker.com/u/sameersbn/gitlab/ https://github.com/sameersbn/docker-gitlab/blob/master/Dockerfile

Installation Using Docker

1. Install Docker2. Get Docker image or Dockerfile for the app3. `docker run`

Installation Using Docker

1. Install Docker2. Get Docker image or Dockerfile for the app3. `docker run`

● Simple, never fail.○ Docker container contains libraries,

packages, env variables, etc...● (Sometimes fail, though) Host OS

Docker Engine

Bins/Libs

App

Installing New One Without Docker

Could be success as those old ones

Installing New One Without Docker

Could be success as those old onesOr, conflict with an old one

Could be PATH, Library, Version, etc…

Installing New One Without Docker

Could be success as those old onesOr, conflict with an old one

Could be PATH, Library, Version, etc…

But, we usually doesn’t know what we did during installation of old ones

Installing New One Without Docker

Could be success as those old onesOr, conflict with an old one

Could be PATH, Library, Version, etc…

But, we usually doesn’t know what we did during installation of old ones...UNACCEPTABLE!!!

http://memegenerator.net/instance/59157648

Installing New One Using Docker

Generate new docker container

It never conflicts with because containers are isolated with others

Host OS

Docker Engine

Bins/Libs Bins/Libs

App 1 App 2

Summary

Docker rules!