E2E Test with Katib UI, random search, and postgres

Add unit test for `create_experiment` in the `katib_client` module #721

Sign in to view logs

Run time

Learn about OS pricing on GitHub Actions

Job	Run time
e2e (v1.27.11)	15m 17s
e2e (v1.28.7)	16m 1s
e2e (v1.29.2)	16m 31s
	47m 49s