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Containers and Virtualisation for Continuous Testing
- 2. ABOUT KNOWESIS InfoSphere Streams Storm SIFT Streaming Engine Amplifying Data Potential
- 3. What you can expect 1. Software Trends 2. Infrastructure As Code 3. Virtualization 4. Docker Overview 5. Continuous Integration and Delivery 6. TESTING a) Unit Test b) Integration c) UI 7. Security 8. Build Pipeline
- 6. INFRA AS CODE Create and manage infra as dynamic assets. Configuration Orchestration Configuration Management
- 8. APPLICATION & DEPENDENCIES AS CODE Create application and dependencies from Code Dockerfile to Image IMAGE
- 11. VIRTUALIZATION- Containers Containers are a method of operating system virtualization that allow you to run an application and its dependencies in resource-isolated processes. Containers PACKAGE APPLICATION CODE CONFIG AND DEPLOYMENT DEPLOY CONSISTENTLY WITHOUT ENV DEPENDENCIES
- 12. DOCKER • Docker is a tool designed to make it easier to create, deploy and run applications using containers. • Allows developers to package up an application with all the parts it needs, such as lib and dependencies and ship it all out as one package. • Built on Open Standards and runs on Linux and Windows Server • Bit like a VM, but without Guest OS and Hypervisor VIRTUAL MACHINE DOCKER
- 16. DOCKER ADOPTION
- 17. DEVELOPMENT LIFECYCLE Continuous Integration Continuous Delivery Req Plan Code Build Test Release Deploy Manage Monitor
- 18. Continuous Integration 1. Developers regularly check in code to a shared, central repository 2. Automated builds run using the shared code base 3. Tests and run against the code base giving feedback to the developers What is Continuous Integration?
- 19. Continuous Delivery 1. Successful builds and automatically deployed to Staging and Pre-Prod 2. Automated and Manual exploratory tests are completed on each tier 3. Approval needed for release to Production What is Continuous Delivery?
- 20. Continuous Integration and Delivery Why does CI/CD matters? • Find bugs earlier • Fix bugs faster • Deliver faster • Deliver more often • Unblock developers
- 21. TESTING TESTING
- 22. Testing 1 Unit Test 2 Integration Test 3 UI Testing 4 Security
- 25. UNIT TEST TEST Unit Test is a piece of code which test the behaviour of a function or a class FUNCTIONCODE
- 27. UNIT TEST – Testing JUnit is an open source framework designed for the purpose of writing and running tests in the Java programming language. JUnit allows the developer to incrementally build test suites to measure progress and detect unintended side effects
- 29. UNIT TEST – Code Coverage JACOCO – Light weighted, flexible and well documented library for integration with various build and development tools Code coverage metrics can help the team monitor their automated tests as the codebase and automated tests grow and change. Just as important, code coverage can help developers improve their tests before they commit to a build. BetterTest = less bugs = fewer broken build
- 31. UNIT TEST – Code Analysis FindBugs – Static code analysis for Java bytecode which can find common error which may occur. Ex. SQL query without prepared statement and obvious NullPointerException. Static Code Analysis, analyzes code without executing it. Used to find issues and ensure that it conforms to coding guidelines.
- 36. UNIT TEST – SonarQube With Continuous Inspection in place, you should easily be able to answer: 1. How much duplicate code was added last week? 2. How well unit-tested are the files committed yesterday? 3. Did we introduce any critical issues during the last iteration?
- 37. INTEGRATION TEST The “mock everything” era is over, we have too many integration points…
- 39. DOCKER COMPOSE
- 42. TESTCONTAINERS
- 43. TESTCONTAINER Testcontainer is a Java library that supports JUnit tests, providing light weighted throwaway instances of common databases, selenium browsers, […] that can run in Docker container
- 44. TESTCONTAINER - Capabilities Ø Generic docker container support. Ø Use any Docker images to support tests Ø Databases and Stream processing Ø AWS mocks (Localstack) Ø Docker Compose Ø Selenium (Webdriver Container) Ø Chaos Testing
- 49. TEST CONTAINER - Cleanup testcontainers/moby-ryuk This project helps you to remove containers/networks/volumes by given filter after specified delay
- 50. UI TEST - SELENIUM Ø Selenium is a tools to automate web browser testing Ø Used to automate UI testing Ø Support many language and multiple platform Ø Simulate a real user testing a web-page and validate the check point
- 51. UI TEST - SELENIUM Selenium IDE - Used to record and play back Selenium RC – which work by injecting javascript SELENIUMWEB DRIVER
- 52. UI TEST - SELENIUM Selenium Grid is a smart proxy server allows tests to be routed to remote web browser instances and allows to run parallel tests on multiple machines Hub – Intermediary and manager takes instructions and executes remotely Nodes – Registers itself to the hub and received requests from the hub and executes it SELENIUM GRID
- 53. UI TEST - SELENIUM SELENIUM GRID WITH DOCKER With docker we have to install the hub and browser nodes into Docker containers and then start the hub and nodes from the Docker container. Selenium Images Hub image - selenium/hub Node firefox image - selenium/node-firefox Node chrome image – selenium/node-chrome Node debug firefox image - selenium/node-firefox-debug Node debug chrome image – selenium/node-chrome-debug
- 54. UI Test – Zalenium (Zalando) Zalenium Ø Selenium Grid extension to scale local grid dynamically Ø Uses docker-selenium to run tests Ø Can connect to cloud services like SauceLabs, BrowserStack, TestBot etc. Ø Works out of the box with Kubernetes Ø Records Video of the tests
- 55. UI Test - Zalenium INSTALLATION $ docker run --rm -ti --name zalenium -p 4444:4444 -v /var/run/docker.sock:/var/run/docker.sock -v /tmp/videos:/home/seluser/videos --privileged dosel/zalenium start https://github.com/zalando/zalenium Zalenium https://opensource.zalando.com/zalenium/
- 56. UI Test - Selenoid (Aerokube) SELENOID Ø Implementation of Selenium hub Ø Ready to use browser images Ø Light weighted Ø Integration with ELK Ø Video Recording
- 57. UI Test - Selenoid ONE COMMAND INSTALLATION $ docker run –d –name selenoid –p 4444:4444 –v /var/run/docker.sock:/var/run/docker.sock –v ‘pwd’/config/:/etc/selenodi/:ro aerokube/selenoid:latest-release $ docker run –d –name selenoid-ui – link selenoid –p 8080:8080 aerokube/selenoid-ui –selenoid- uri=http://selenoid:4444 SELENOID https://aerokube.com/selenoid/
- 59. Gauntlt • Gauntlt is a popular open source test framework written in Ruby that uses Cucumber to describe simple security-related asserts or complex automated attack scenarios in a way that is easy for developers and auditors to follow. • Gauntlt wraps pen testing and security-testing tools, abstracting the details of how they work and making them more accessible, and controlling them so that you can create repeatable, deterministic steps with clear pass/fail results. • You compose attack scenarios using Gherkin syntax, a high-level, English- like language that is essentially self-documenting, making it simple to describe and write tests:
- 61. CONTAINER SECURITY ü Docker and the Docker community provide tools like trusted registries and image scanning to manage these risks ü Containers can be locked down by using CIS (Center for Internet Security) guidelines ü Using scanning tools like Docker Bench https://github.com/docker/docker-bench-security https://www.cisecurity.org/benchmark/docker/
- 63. BUILD PIPELINE Bitbucket Jenkins Maven JUnit SonarQube SCM CI Build Source Unit Test Analysis Nexus Repo Mgr Ansible CM Jira Change Management BUILD PIPELINE Docker Build Image Docker Hub Docker Repo
- 64. BUILD PIPELINE AWS Docker Selenium JMeter Build Env Build Setup Function Test Perf Test Ansible CM BUILD PIPELINE Deploy Desired Environment Jenkins CD Packer CD
- 65. How to succeed in Continuous Testing 1 2 Create Culture Architect/Design for DevOps Use the right tools Conway Law - "Organizations which design systems are constrained to produce designs which are copies of the communication structure of these org"