Testing AS A Container - Irfan Ahmad
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This document discusses using Docker containers to improve the software testing and delivery process. It outlines challenges with traditional testing approaches like slow deployments and ineffective tests. Docker containers provide a standardized and portable way to run tests quickly by packaging an application and its dependencies. The document demonstrates building test containers, running tests inside containers, and using Docker Compose to test multi-container applications. Best practices like one process per container and shipping images not code are also covered. Overall, Docker containers can help speed up testing, improve test quality, and enable continuous integration and delivery workflows.
Testing AS A Container - Irfan Ahmad
- 1. TESTING AS A CONTAINER USING DOCKER CONTAINERS TO DELIVER TESTING AT SPEED IRFAN AHMAD
- 2. CONTENTS ▸ Challenges :Testing and Delivery ▸ Docker and Friends ▸ Testing : In Containers ,On Containers ▸ Demo ▸ Docker In Practise
- 4. WHY WE FAIL TO TEST? 45% 15% 5% 35% ▸ Slow deployments ▸ Slow test and setup ▸ Ineffective tests ▸ Not needed
- 5. MATRIX FROM HELL - SHIP GOODS?
- 6. MATRIX FROM HELL - SHIP SOFTWARE?
- 7. MATRIX FROM HELL -SOLVED
- 9. CONATINERS
- 10. A CONTAINER IS AN ENTIRE ISOLATED PORTABLE RUNTIME ENVIRONMENT: AN APPLICATION, PLUS ALL ITS DEPENDENCIES, LIBRARIES AND OTHER BINARIES, AND CONFIGURATION FILES NEEDED TO RUN IT, BUNDLED INTO ONE PACKAGE. WHAT ARE CONTAINERS?
- 11. CONTAINERS VS VM
- 12. DOCKER ▸ Docker is an open platform for developers and sysadmins to build, ship, and run distributed applications.
- 13. INSIDE DOCKER ▸ Docker Image :static snapshot of the containers’ configuration. ▸ Docker Engine: a lightweight runtime and robust tooling that builds and runs your Docker containers. ▸ Docker Registry :a repository of images
- 14. DOCKER HUB
- 15. DOCKER TOOLBOX
- 16. HOW COMPONENTS FITS TOGETHER
- 17. DOCKER LIFECYCLE
- 18. HOW DOCKER WORKS DOCKER RUN DOCKER LOOKS FOR LOCAL IMAGES IS IT INSTALLED DOCKER LOOKS FOR IMAGES FROM REGISTRY NO IS IT INSTALLED DOCKER DOWNLOADS THE IMAGE IMAGE INSTALLED LOCALLY DOCKER CREATES NEW CONTAINER AND STARTS PROGRAM CONTAINER IS RUNNING YES
- 19. DOCKER COMMANDS
- 20. DOCKERFILE ▸ configuration file with build instructions for Docker images
- 21. DOCKER-COMPOSE ▸ Compose is a tool for defining and running multi-container Docker applications ▸ Compose is great for : ▸ development ▸ testing ▸ environments setup ▸ CI workflows
- 22. EXAMPLE
- 24. DOCKER USE CASES
- 25. TRENDS IN TESTING ▸ Agility ▸ Automation ▸ Devops ▸ Scale ▸ Diversity
- 26. TESTING CONTAINERS ,WHY ? ▸ easy setup ▸ fast ▸ shareable ▸ composable ▸ scalable
- 27. TESTING CONTAINERS ,HOW ? ▸ write dockerfiles for setup ▸ ship tests as docker images ▸ execute tests as containers ▸ compose with any other application ,tests or CI
- 28. DEMO
- 29. PRE-REQUISITES ▸ virtual-box ▸ download docker toolbox ▸ https://www.docker.com/products/docker- toolbox
- 30. CHECK SETUP
- 31. VOTING APP : APP UNDER TEST ▸ Simple Real Time voting app ▸ Runs with Docker Compose and multiple containers in network
- 32. VOTING APP : COMPONENTS
- 33. DELIVER BELOW TESTS AS CONAINER TO TEST VOTING APP DOCKER IMAGE 1.API 2.WEB 3.LOAD PROBLEM STATEMENT
- 34. USING IMAGES IN DOCKER COMPOSE
- 36. BEST PRACTICES ▸ One container one process ▸ Ship Images not code ▸ Required packages ▸ Specific tags ▸ Group common operations
- 38. FUTURE : CONTAINERS EVERYWHERE
- 39. Q & A Github https://github.com/irfanah/TestStack https://github.com/irfanah/example-voting-app Docker hub https://hub.docker.com/u/irfanah/ Email :irfan@critick.io Web :http://critick.io Twitter: @irfanahmads Open Sourced : for hands on THANK YOU