Fits docker into devops
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This document discusses how Docker can be integrated into DevOps workflows to improve the development and testing process. Docker allows developers to build, ship, and run applications inside lightweight Linux containers, enabling consistent environments for development, testing, and production. By using Docker images and containers, developers can achieve faster iteration and more reliable automated testing across different environments like development, QA, and production. The document also addresses how Docker can be used on non-Linux platforms like Windows and MacOS using tools like Boot2Docker and Vagrant.
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Exploring Code Comprehension in Scientific Programming: Preliminary Insight...
Exploring Code Comprehension in Scientific Programming: Preliminary Insight...University of Hawai‘i at Mānoa
Fits docker into devops
- 1. Fits Docker into Devops Evans Ye 2014.10.6
- 2. Let’s discuss about Devops first #TrendInsight
- 3. PRE-Devops • Developer builds and tests on dev servers • Devloper hands off code to operation • likely deployed manually • Sometimes it broken in Production • Need to be fixed, Now
- 4. 4
- 5. Devops • Getting changes to users quickly, reliably, and securely • Quick release cycle from code to Production • More confidence due to automated testing • reproducibility – bugs are not always 100% reproducible
- 6. 6 Fast Iteration backed by automated testing
- 7. Google Devops (2013) • 75 million test cases are run daily "Automated tests transform fear into boredom." -- Eran Messeri, Google
- 8. Continuous Integration • Same environment in Dev, QA and Production • Auto deploy – deploy reliability and consistency • Automated tests – unit test – smoke test (integration test)
- 9. How do you test hadoop features? • Manually test on dev cluster – Hey folks, don’t move, I’m testing my own features. • Pig unit – adhoc-query? dev environment only • HBase mini-cluster – does not support Windows? • Still not exactly the same environment as Production • what if written in python, ruby, php?
- 10. What if we can do Dev and Test in the same way, efficiently? 10
- 12. Docker • lightweight, portable Linux containers (like VMs) – fast creation – system isolated – resource constrained • Build, ship, run containers everywhere – containers as dev and test environment
- 13. Containers offer faster automation
- 14. Introduction to Docker #TrendInsight
- 15. The Docker Engine runs containers 15
- 17. 17 The Docker Hub stores and ships images
- 18. Docker image • $ docker runs <IMAGE> to create a container • base image stores /bin, /etc, /usr (Linux distro.) • add you app(diff) on top of base image • commit containers • push, pull images
- 19. Docker offers you • Deploy efficiently • Quick start • Lightweight
- 20. Limitation of Docker • Any Linux with kernel > 3.8.x • Linux only (Linux container, after all) Linux
- 21. 21 What about Windows and Macbook…?
- 22. Vagrant • A open source command line VM(or IaaS) provisioning tool Providers Vagrantfile VM
- 23. Solution for OS X / Windows Container Container boot2docker (2XMB, tiny core Linux) OS X / Windows with vagrant and virtualbox installed docker containers docker platform auto provisioned by vagrant $ vagrant up DONE!
- 26. Develop and test hadoop related features 10/22/2014 link service (hadoop-client) data (hadoop-client) hadoop fs –put …
- 27. Q & A #TrendInsight