Autoscale test image

This directory contains the test image used in the autoscale e2e tests.

The image contains a simple Go webserver, autoscale.go, that will listen on port 8080 and expose a service at /.

The service applies different modes of resource consumption based on query parameters.

• sleep=X -- number of milliseconds to sleep (e.g. curl http://${URL}/?sleep=200), alternatively duration can be specified as time.Duration, e.g. sleep=13s.
• sleep-stddev=X -- valid only if sleep is provided, sleeps for a random period of time according to a normal distribution centered around sleep with stddev equal to this value.
• bloat=X -- creates a byte array size of X*1024*1024 and assigns 1 to each array value (to ensure heap allocation).
• prime=X -- computes the smallest prime less than X. Does not support X > 40000000.

Trying out

To run the image as a Service outside of the test suite:

ko apply -f service.yaml

Building

For details about building and adding new images, see the section about test images.