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![DOCKER - HANDS ON
‣ clone https://github.com/irfanah/teststack
docker-compose up #for starting example-web app
‣ To run any test inside docker containers
‣ rake docker["api"] #for api tests
‣ rake docker["web"] #web tests on headless browse
‣ rake docker["webapp"] #web tests on selenium grid](https://image.slidesharecdn.com/testingcontainer-160417211740/85/Testing-as-a-container-26-320.jpg)
Uploaded byIrfan Ahmad
Testing as a container
This document discusses using Docker containers to improve testing workflows. It outlines challenges with traditional testing approaches that can slow down deployments. Containers are presented as a solution by providing isolated, portable testing environments. The rest of the document demonstrates how to test applications using Docker containers, Docker Compose, and Selenium with examples of API, web, and Selenium Grid tests. Best practices are provided for containerizing tests along with a proposed continuous integration workflow using containers.
Testing as a container
- 1. TESTING AS A CONTAINER DOCKERWITH AND SELENIUM & FRIENDS TO SHIP FAST Irfan Ahmad @critickerr
- 2. SOON AFTER THISTALK …. power lies in packaging
- 3. OUTLINE ▸Why? - Challenges ▸What?- Containers ▸How? - Testing in Containers ▸Really? -See Demo ▸Next? - Try Hands On Example
- 4.
- 5. WHY WE FAILTO TEST? 45% 15% 5% 35% ▸ Slow-down deployments ▸ Slow test and setup ▸ Ineffective tests ▸ Not needed ▸ * All of these challenges are linked to infrastructure underlying tests.
- 6. MATRIX FROM HELL- SHIP GOODS?
- 7. MATRIX FROM HELL- SHIP SOFTWARE?
- 8.
- 9. AN APPLICATION, PLUSALL ITS DEPENDENCIES, LIBRARIES AND OTHER BINARIES, AND CONFIGURATION FILES NEEDED TO RUN IT, BUNDLED INTO ONE PACKAGE. WHAT ARE CONTAINERS? AN ENTIRE ISOLATED PORTABLE RUNTIME ENVIRONMENT
- 10. DOCKER ▸ Docker isan open platform for developers and sysadmins to build, ship, and run distributed applications.
- 11. INSIDE DOCKER ▸ DockerImage :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
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- 14. HOW COMPONENTS FITSTOGETHER
- 15.
- 16. HOW DOCKER WORKS DOCKERRUN DOCKER LOOKS FOR LOCAL IMAGES IS IT INSTALLED DOCKER LOOKS REGISTRY FOR IMAGES NO IS IT AVAILABLE DOCKER DOWNLOADS THE IMAGE IMAGE INSTALLED LOCALLY DOCKER CREATES NEW CONTAINER AND STARTS PROGRAM CONTAINER IS RUNNING YES
- 17. DOCKERFILE ▸ configuration filewith build instructions for Docker images
- 18. DOCKER-COMPOSE ▸ Compose isa tool for defining and running multi-container Docker applications
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- 20. PRE-REQUISITES ▸ virtual-box ▸ downloaddocker toolbox ▸ https:// www.docker.com/ products/docker- toolbox
- 21. VOTING APP :APP UNDER TEST ▸ Simple Real Time voting app ▸ Runs with Docker Compose and multiple containers in network
- 22. VOTING APP :COMPONENTS
- 23. Deliver Below Testas Container to Test Voting App Docker Image 1.API 2.Web 3.Web with Selenium Grid PROBLEM STATEMENT
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- 25. DOCKERS ANSWERS TOTESTING CHALLENGES Problem Solution Automation Dockerfile for setup Agility & Reliability Ship and Share Images DevOps Infrastructure as Code Scale Docker Compose Tools Diversity Docker support by and from vendors.
- 26. DOCKER - HANDSON ‣ clone https://github.com/irfanah/teststack docker-compose up #for starting example-web app ‣ To run any test inside docker containers ‣ rake docker["api"] #for api tests ‣ rake docker["web"] #web tests on headless browse ‣ rake docker["webapp"] #web tests on selenium grid
- 27. BEST PRACTICES ▸ ShipImages , not just code ▸ One container one process ▸ Add only Required packages ▸ Group common operations ▸ Use Specific tags with Images
- 28. TRY A SIMPLECI WORKFLOW
- 29. Q & A THANK YOU Open Sourced -For Hands On Github https://github.com/irfanah/TestStack https://github.com/irfanah/example-voting-app Docker hub https://hub.docker.com/u/irfanah/ IRFAN AHMAD Email irfan@critick.io Web http://critick.io Twitter @critickerr