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Write grafana/k6 in TypeScript, run in GitHub Actions and send to Datadog

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typescript-k6 test

Write your grafana/k6 test with TypeScript, and run the test in GitHub Actions.

Getting Started

Run in GitHub Actions

Create a pull request and then k6 will run.

Run locally

% pnpm build
% k6 run lib/http-get.js

          /\      |‾‾| /‾‾/   /‾‾/   
     /\  /  \     |  |/  /   /  /    
    /  \/    \    |     (   /   ‾‾\  
   /          \   |  |\  \ |  (‾)  | 
  / __________ \  |__| \__\ \_____/ .io

  execution: local
     script: lib/http-get.js
     output: -

  scenarios: (100.00%) 1 scenario, 10 max VUs, 35s max duration (incl. graceful stop):
           * default: 10 looping VUs for 5s (gracefulStop: 30s)


     data_received..................: 515 kB 84 kB/s
     data_sent......................: 7.3 kB 1.2 kB/s
     http_req_blocked...............: avg=163.75ms min=2µs      med=6µs      max=837.54ms p(90)=574.72ms p(95)=808.75ms
     http_req_connecting............: avg=9.28ms   min=0s       med=0s       max=69.39ms  p(90)=36.8ms   p(95)=55.81ms 
     http_req_duration..............: avg=242.79ms min=177.42ms med=190.86ms max=340.26ms p(90)=331.36ms p(95)=339.38ms
       { expected_response:true }...: avg=242.79ms min=177.42ms med=190.86ms max=340.26ms p(90)=331.36ms p(95)=339.38ms
     http_req_failed................: 0.00%  ✓ 0        ✗ 40  
     http_req_receiving.............: avg=314.87µs min=34µs     med=138.5µs  max=1.53ms   p(90)=751µs    p(95)=1.18ms  
     http_req_sending...............: avg=42.59µs  min=9µs      med=20µs     max=550µs    p(90)=30µs     p(95)=60.64µs 
     http_req_tls_handshaking.......: avg=134.72ms min=0s       med=0s       max=715.08ms p(90)=476.73ms p(95)=682.24ms
     http_req_waiting...............: avg=242.43ms min=176.78ms med=190.8ms  max=340.16ms p(90)=331.15ms p(95)=339.19ms
     http_reqs......................: 40     6.490733/s
     iteration_duration.............: avg=1.4s     min=1.17s    med=1.32s    max=2.17s    p(90)=1.79s    p(95)=2.14s   
     iterations.....................: 40     6.490733/s
     vus............................: 4      min=4      max=10
     vus_max........................: 10     min=10     max=10


running (06.2s), 00/10 VUs, 40 complete and 0 interrupted iterations
default ✓ [======================================] 10 VUs  5s

Datadog k6 integration

To send the metrics from GitHub Actions to Datadog,

  1. Create an API key of Datadog.
  2. Put the API key to the repository secret DATADOG_API_KEY in GitHub Actions.
  3. Enable k6 integration in Datadog.

The workflow starts Datadog Agent by DataDog/agent-github-action and runs k6 with stats output. See https://k6.io/docs/results-output/real-time/datadog/ for details.

Here is an example of metrics.

image

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Write grafana/k6 in TypeScript, run in GitHub Actions and send to Datadog

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