Containerise everything - Why you should stop installing development environment locally
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The document discusses the importance of containerization in software development, drawing parallels from the history of the shipping industry, which revolutionized global trade through standardization. It outlines the advantages of using tools like Docker for creating isolated and easily manageable development environments compared to traditional methods. The talk also highlights the potential of containerization to simplify code compilation and foster innovation in the open source community.
Containerise everything - Why you should stop installing development environment locally
- 1. CONTAINERISE EVERYTHING why you should stop installing development environment locally https://www.flickr.com/photos/roludsgn/1036204298/
- 2. I’M DANIEL DEMMEL (@DAAAIN) I work at We design, build and launch digital products
- 3. TALK OUTLINE A brief history of the shipping industry What is containerisation, why do we need it and how it will change software development A practical introduction to Docker
- 4. Handling bulk goods used to be messy and labour intensive… https://en.wikipedia.org/wiki/File:Queens_Wharf,_Port_Adelaide,_before_1927.jpeg
- 5. …until Malcolm McLean had enough by 1955 and came up with standardised, multi-modal containers. https://www.flickr.com/photos/maerskline/7312751706/in/photostream/
- 6. BUT WHY DO I CARE ABOUT THE SHIPPING INDUSTRY?
- 9. :SHIPIT:
- 10. SO WHAT IS THE PROBLEM WITH DEVELOPMENT ENVIRONMENTS?
- 11. This is your development machine with the dependencies for all projects, tools, libraries and versions installed on it: https://en.wikipedia.org/wiki/File:Queens_Wharf,_Port_Adelaide,_before_1927.jpeg JAVA 6 JAVA 7 RUBY 2.1 RUBY 1.9 MYSQL 4 MYSQL 5 IO.JS 2.4 NODE 0.8 PHP 5 NODE 0.12 IMAGEMAGICK 6 PHP 4 POSTGRESQL 9 HERE BE DRAGONS SASS 3.4 LIBSASS 3.2LESS 2.5
- 12. But it could be neat like Malcolm’s port: https://www.flickr.com/photos/maerskline/7312751706/in/photostream/ JAVA 6 RUBY 1.9 MYSQL 5 NODE 0.8 PHP 5 … POSTGRESQL 9 … …
- 13. APPROACHES TO HANDLE DIFFERENT ENVIRONMENTS Package managers Version switchers Virtualisation Containerisation
- 14. PACKAGE MANAGERS Libraries installed locally for each project Easy to forget including existing globally installed tools into project package list Falls apart with legacy projects For ex: Bundler, NPM, Maven
- 15. VERSION SWITCHERS Picks you the right runtime version to execute your code in per folder / project Gets messy with a fair amount of magic to make things happen (and go wrong) For ex: RVM, Rbenv, NVM, JSelect
- 16. VIRTUALISATION Totally independent virtual operating systems Can perfectly mirror production environment Mostly scripted dependency installation Portable image snapshots For ex: Virtualbox, Vagrant, Puppet, Chef, Salt
- 17. CONTAINERISATION Isolated environments reusing host OS core Much smaller and no overhead of virtualisation Pretty much instant creation and restart For ex: LXC, Docker, Open Container Initiative
- 18. LXC
- 19. DOCKER ECOSYSTEM Open source with big and active community Addresses several levels of the problem Makes containerisation accessible to all
- 20. DOCKER (ENGINE) Abstraction and UX around Linux Containers REST API to interact with CLI and remotes Dockerfile as build recipe Portable and incremental images Uses Virtualbox + Boot2Docker on Win / Mac
- 21. DOCKER HUB / REGISTRY Github of Docker with public and private repos A place to store / share container snapshots Fork or build on top of existing containers API hooks to integrate build / testing pipelines
- 22. KITEMATIC A simple GUI to see containers created locally and available on Docker Hub Installs everything you need to get started Mac only, but Windows version is coming Not that useful if you want to customise or build on containers, little info shown in search
- 23. DOCKER MACHINE Makes it easy to manage containers and hosts Works both locally and with cloud providers A quick way to do simple deploys
- 24. DEMO (FINALLY!) Walkthrough of Docker boilerplate repo React + Sass front end app Express / Node server Gulp build chain package.json, Dockerfile, Makefile Terminal + browser demo Kitematic
- 26. “Containerisation will start a similar revolution in open source as Git did, by making it much simpler to take any code and start compiling it right away
- 27. QUESTIONS? Yes, we’re hiring, do get in touch: [email protected] Links Talk: http://www.danieldemmel.me/blog/ 2015/08/14/containerise-everything/ Git repo: https://github.com/ustwo/docker-node- boilerplate Dockerfile best practices: https://docs.docker.com/ articles/dockerfile_best-practices/
- 28. CREDITS Talk is Creative Commons Attribution 4.0 International Image credits as attributed on respective slides Vector icons from the Noun project Package: https://thenounproject.com/search/?q=package&i=10996 Switch: https://thenounproject.com/search/?q=switch&i=79501 Virtualisation: https://thenounproject.com/term/data-center-server- virtualization/95507/ Container: https://thenounproject.com/term/shipping-container/116963/