k6: add page (#2353)

=

pages/common/k6.md

@@ -0,0 +1,27 @@
+# k6
+
+> A modern load testing tool, using Go and JavaScript.
+
+- Run load test locally:
+
+`k6 run {{script.js}}`
+
+- Run load test locally with a given number of virtual users and duration:
+
+`k6 run --vus {{10}} --duration {{30s}} {{script.js}}`
+
+- Run load test locally with a given environment variable:
+
+`k6 run -e {{HOSTNAME=example.com}} {{script.js}}`
+
+- Run load test locally using InfluxDB to store results:
+
+`k6 run --out influxdb={{http://localhost:8086/k6db}} {{script.js}}`
+
+- Login to cloud service using secret token:
+
+`k6 login cloud --token {{secret}}`
+
+- Run load test on cloud infrastructure:
+
+`k6 cloud {{script.js}}`