YEGOR MAKSYMCHUK «Using Kubernetes for organization performance tests»
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YEGOR MAKSYMCHUK «Using Kubernetes for organization performance tests»
- 1. Using kubernetes for organization performance tests Jmeter, Gatling, Docker, Kubernetes, Cloud and your Mind
- 2. Who am I Yehor Maksymchuk https://github.com/YegorMaksymchuk https://qastudy.online/ TBD https://github.com/QAStudyOnline
- 3. Agenda ● Typical problems in performance test organisation ● Smart solutions “I hope it is smart :)” ● Problems what can be faced with Kubernetes and Containers services ○ Project setup ○ Build ○ Orchestration and deployment ○ Result analysis ● Summary and Q&A session
- 4. Typical problems in performance test organisation 1. What should be covered by Performance test - out of scope and project related 2. Where and When I will run my performance test or who will pay for infrastructure? 3. How I can collect and analyze results form multi load executors?
- 5. Where and When I will run my performance test or who will pay for infrastructure? Most common issue what I I have seen on projects look like: Performance test engineer: I need big and huge VM or buy me Blazemeter!! PM: Hmm…. Hey DevOps and Infra how can we manage it? DevOps and Infra: We do not have VM we Containerless Serverless Microserviceless …. PM: Oh my God budget …. Consultant: Stop, lets use Kubernetes or Container Services
- 6. How I can collect and analyze results form multi load executors? Performance test engineer: Oh no…. I need two weeks to write custom python scripts to aggregate result and one week to analysis it !! PM: Oh my God budget!! DevOps and Infra and Dev: maybe it is needed for him, in any case we have our dashboards and alarms. so we can relax. PM: How we can improve it? Consultant: Crafted one-project scripts are not needed, let's use dashboards and build-in tools functionality (also we can setup Grafana + InfluxDb to monitor test in real time)
- 7. Example with Jmeter and AWS ECS 1. Deploy via CloudFormation (Terraform) 2. Results will be stored in AWS S3 bucket 3. Jmeter can aggregate results with a. MergeResult plugin b. Standard report based on merged results fiel c. Setup Grafana and Influxdb and connect your test
- 8. Project setup: simple with Jmeter 1)Dockerfile - build our image with all in one 2)entrypoint.sh - run test in container 3)test.jmx - our test what read environment variable 4)kubejob.yaml - Kubernetes job deployment. 5)Just change USERS_COUNT to change amount of virtual users 6)change parallelism to increase amount of pods
- 9. Project setup: Kubernetes and Gatling Kustomize Demo project
- 10. How start with Gatling in 2023? Scala Java Kotlin SBT Maven Gradle
- 11. How to check execution from pod?
- 12. How to combine all reports in one (aggregate it)? 1. You have to copy all simulation.log files from each executor in one folder 2. Install gatling as app 3. Execute: ${GATLING_HOME}/bin/gatling.sh -ro ${PATH_TO_ALL_SIMULATIONS_LOG_FOLDER}
- 13. Issues what can be faced? 1. Simulation.log file not accessible after pod complete? - setup pod with volume and mount result folder from executor to pod with persistent volume. 2. Our Ingress or Load Balancer is a bottleneck ? - call in your test not a ingress but directly your kubernetes service ip. 3. This solution use do not provide full picture because will use a cluster resources and some hardware resources will be locked by load generator pods! - yes, but you can start ASAP do not spent money on extra infrastructure and provide easy to use tool for Dev and Ops (DevOps) team! 4. How integrate with CI? - just setup a kubectl and go in easy shell script!
- 14. Useful links Gatling Kubernetes Gradle + Gatling Maven + Gatling Subscribe
- 15. Q&A