Talk about why you need to start using docker in your development environment and how to use Dokku as own local Heroku for staging environments

1. Dokku - Your Own Heroku
Oleksandr Simonov

2. ABOUT ME
● Open Source projects: rubyzip, roo, amoeba, capistrano-runit
● Programming Languages: Ruby, JS, Go, Erlang, Perl, PHP,
Pascal, asm
● Operation Systems: MacOS, Gentoo, Arch, Ubuntu, Windows
● Terminal: iTerm2, urxvt
● Editor: vim, vscode
● Shell: zsh

3. AGENDA
● Short history about application deployment
● Docker and containers revolution
● Development environment
● Why Dokku?
● Issues and recipes
● Questions

4. DEPLOYMENT
Software deployment is all of the activities that
make a software system available for use

5. Manual File
Upload
Very simple and monkey job
process via ftp, sftp, etc.

6. Manual File
Upload
Very simple and monkey job
process via ftp, sftp, etc.

7. Direct Edit ON
Server
Very simple and unstable
process

8. Direct Edit ON
Server
Very simple and unstable
process

9. Automated process
with manual run
Capistrano, vlad, mina, etc.

10. Automated process
with manual run
Capistrano, vlad, mina, etc.

11. Heroku
git push

12. Heroku
git push

13. Docker
Containerization revolution

14. containerization
Containerization is a system of
intermodal freight transport
using intermodal containers

15. Why Docker is so good?
Why I still need to talk about it in 2019?!

16. Transport Cargo Pre 1960

17. Transport Cargo Pre 1960 - Matrix from Hell

18. Intermodal Shipping Container

21. Somewhere…
junior dev talks to team lead…

22. Development Environment
A development environment is a collection of procedures and tools
for developing, testing and debugging an application or program.

23. Development
Environment
DEV
STAGING
PROD
DEV
STAGING
PROD
Code DB

24. Local dev environment
max 5-10 minutes on start

26. Staging environment
zero admin required

28. Production Environment
Code must able to run everywhere within minimal time

30. All main providers costs a
lot money!
In case of staging environment

31. Dokku
Fast and simple alternative of any paid PaaS

33. Why Dokku?!

34. Small - 262 lines of code

36. Your own PaaS - you can install it on any hardware/virtual server/etc

37. Your own PaaS - you can install it on any hardware/virtual server/etc

38. Deployment via git push

40. Heroku compatible with Herokuish

42. A lot of plugins which helps you

45. Instant domains

47. SSL by Let’s Encrypt

49. Are there no issues?!

50. NO!

51. Common issues
● Limited access rules

52. Common issues
● Limited access rules
● Unavailability to change docker options for database services

53. Common issues
● Limited access rules
● Unavailability to change docker options for database services
● No tools for interconnection between apps

54. Common issues
● Limited access rules
● Unavailability to change docker options for database services
● No tools for interconnection between apps
● No command line tools

55. Common issues
● Limited access rules
● Unavailability to change docker options for database services
● No tools for interconnection between apps
● No command line tools
● No scalability to more than one host system

56. Common issues
● Limited access rules
● Unavailability to change docker options for database services
● No tools for interconnection between apps
● No command line tools
● No scalability to more than one host system
● No wildcard domains support

57. Docker options for DB

58. Interconnection between containers

59. Wildcard domains
● Simplify dokku generated nginx file via custom
nginx.conf.sigil in your root application folder
● Set the custom nginx virtual host config on host
system
● Forget about lets-encrypt plugin