TITELTEXT
Continuous (Non)-Functional
Testing of Microservices on K8s
Code Days 2021 Digital, February 11th 2021
@LeanderReimer #cloudnativenerd #qaware #CodeDays

Mario-Leander Reimer
Principal Software Architect
@LeanderReimer
#cloudnativenerd #qaware

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
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"Software Is Eating the World.“
Marc Andreessen, 20th August 2011

Dev
Ops

https://commons.wikimedia.org/w/index.php?curid=2223771

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
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Continuous delivery (CD) is a software engineering
approach in which teams produce software in short cycles,
ensuring that the software can be reliably released at any
time .… It aims at building, testing, and releasing software
with greater speed and frequency.

The Software Assembly Line

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
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"Software Industrialization
is key for successful DevOps
and Continuous Delivery."
Unknown source, 22nd October 2019

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
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Continuous
Delivery
Low Risk
Releases
Less
Rework
Fast Time
to Market
Better
Products
Lower
Costs
Happier
Teams
Happier
Users
Loosely Coupled Architectures
Maintainable Code
Empowered Teams
Continuous Security from Day 1
Test
Automation
Continuous
Integration
GitOps
Deployment
Automation
Monitoring and Alerting
Input Output

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
13
Continuous
Delivery
Low Risk
Releases
Less
Rework
Fast Time
to Market
Better
Products
Lower
Costs
Happier
Teams
Happier
Users
Loosely Coupled Architectures
Maintainable Code
Empowered Teams
Continuous Security from Day 1
Test
Automation
Continuous
Integration
GitOps
Deployment
Automation
Monitoring and Alerting

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
14
Continuous
Delivery
Low Risk
Releases
Less
Rework
Fast Time
to Market
Better
Products
Lower
Costs
Happier
Teams
Happier
Users
Loosely Coupled Architectures
Maintainable Code
Empowered Teams
Continuous Security from Day 1
Test
Automation
Continuous
Integration
GitOps
Deployment
Automation
Monitoring and Alerting

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
Claim 1: A single, linear CI/CD pipeline is suboptimal and
will result in delayed feedback and long release cycles.
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Check-In Build Test Integrate
Deploy to
Production
Automated
Acceptance Tests
Manual
Auto Auto Auto Auto?
Acceptance
Security
Performance
These high level tests are usually delayed until the end of sprint or the release.
Which one
fi
rst? Is Functionality more important than Security or Performance?

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
Claim 2: A microservice architecture with many down
stream dependencies is complex and hard to test.
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Cluster
Microservice
A
Microservice
B
External
System B
TEAM A TEAM B UNKNOWN
Microservice
C
TEAM C
External
System A

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
Solution: Why not continuously run (non)-functional
tests against a complex microservice architecture?
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Check-In Build Integrate
Auto Auto Auto
Smoke
Tests
Quality
Acceptance
Security
Performance
Auto Manual
Report &
Alert
Continuous
Runs inside
the cluster
Test
Deploy to
Production
Integration Environment

// Code Days 2021 Digital —> Go for Operations // @LeanderReimer #cloudnativenerd #qaware #CodeDays #OOPmuc
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Code & Demos
https://github.com/qaware/continuous-k6k8s
https://github.com/qaware/continuous-zapk8s
https://github.com/qaware/continuous-atdd

// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
Load Testing for Engineering Teams
• Made for Developers. The k6 API and CLI are easy to use and
fl
exible.
• Out-of-the-box Docker support. Can be run in a container easily.
• Suitable for Smoke Tests, Load Tests, Stress Tests and Soak Tests.
• Supports REST, GraphQL, gRPC and Websockets.
• Result visualisation via DataDog, CloudWatch, In
fl
uxDB+Grafana, New
Relic and many others
• Extensive documentation and good community.
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// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
OWASP Zed Attack Proxy (ZED)
• Widely used, popular, free and open source web app scanner.
• ZAP provides powerful APIs for security automation.
• Intercepting proxy, active and passive scanner, traditional and AJAX
spider, brute force scanner, port scanner, OpenAPI v3, web sockets.
• ZAP's docker images provide an easy way to run ZAP, especially in a
CI/CD environment: baseline, full scan, API scan, Webswing UI.
• Extensive documentation and international community.
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// Code Days 2021 Digital —> Continuous (Non)-Functional Testing of Microservice on K8s // @LeanderReimer #cloudnativenerd #qaware #CodeDays
Very Groovy Browser Automation
• Cross Browser Automation: Chrome, Firefox, Safari, Selenium Hub, …
• Powerful, easy to learn Groovy based DSL. Easy content navigation and
access inspired from jQuery.
• Built-in support for Page Object Pattern for maintainable, stable UI tests.
• Supports asynchronicity and dynamic content .
• Provides integration modules for popular test frameworks: Spock, Unit,
TestNG and Cucumber
• Good and easy build system integration for Maven and Gradle
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Mario-Leander Reimer
Principal Software Architect, QAware GmbH
mario-leander.reimer@qaware.de
https://www.qaware.de
https://speakerdeck.com/lreimer/
https://github.com/lreimer/
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