Every Kubernetes release has an External Dependencies section in the respective Changelog. E.g.:
The list of validated docker versions has changed. 1.11.1 and 1.12.1
have been removed. The current list is 1.13.1, 17.03, 17.06, 17.09,
The list of validated docker versions remain unchanged at 1.11.1,
I think the question about Docker security in general was already well answered in other places, for example here: https://stackoverflow.com/questions/40844197/what-is-the-docker-security-risk-of-var-run-docker-sock
In your particular instance, I see the following points:
The tests should run on some testing server, possibly even in a VM that is destroyed/...
We've configured the plugin properly (we're able to invoke acunetix from jenkins although we're having issues getting the report copied into the Jenkins workspace). The issue he might have run into is that you might have more than one jre installed and you have to register the certificate on the keystore JRE that Jenkins is using (you can check which one is ...