Describe about how software installation could be simple and easy if we use Docker.

1. Software Installation
With / Without Docker
SeongJae Park <sj38.park@gmail.com>

2. Nice To Meet You!
SeongJae Park
Docker newbie
Using Docker *personally*
Gonna talk about my experience with Docker

3. Installation Without Docker
“Installed, but doesn’t works!”

4. Installation Without Docker
“Installed, but doesn’t works!”
“Install this one and that one additionally”
http://memegenerator.net/instance/59157929http://memegenerator.net/instance/59157929

5. 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

6. 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

7. 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

8. 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

9. Installation Using Docker
1. Install Docker

10. Installation Using Docker
1. Install Docker
2. 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

11. Installation Using Docker
1. Install Docker
2. Get Docker image or Dockerfile for the app
3. `docker run`

12. Installation Using Docker
1. Install Docker
2. Get Docker image or Dockerfile for the app
3. `docker run`
● Simple, never fail.
○ Docker container contains libraries,
packages, env variables, etc...
● (Sometimes fail, though) Host OS
Docker Engine
Bins/Libs
App

13. Installing New One Without Docker
Could be success as those old ones

14. Installing New One Without Docker
Could be success as those old ones
Or, conflict with an old one
Could be PATH, Library, Version, etc…

15. Installing New One Without Docker
Could be success as those old ones
Or, 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

16. Installing New One Without Docker
Could be success as those old ones
Or, 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

17. 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

18. Summary
Docker rules!