When I try to follow the tutorial here, I get a log message saying that Jenkins seems to not be in a container.  I looked at the code and noticed that in this specific line, it shows the examples of what it expects the cgroup format to be.  On Docker for Mac, it adds "/docker-ce/" at the beginning. 

13:name=systemd:/docker-ce/docker/9f198268ef07dc79b2e4e9d125ebe43bb689854991d5117ad1654e25844ead3f
12:pids:/docker-ce/docker/9f198268ef07dc79b2e4e9d125ebe43bb689854991d5117ad1654e25844ead3f
11:hugetlb:/docker-ce/docker/9f198268ef07dc79b2e4e9d125ebe43bb689854991d5117ad1654e25844ead3f
10:net_prio:/docker-ce/docker/9f198268ef07dc79b2e4e9d125ebe43bb689854991d5117ad1654e25844ead3f

I end up getting an error in the console output saying

sh: can't create /var/jenkins_home/workspace@tmp/durable-070664e3/jenkins-log.txt: nonexistent directory sh: can't create /var/jenkins_home/workspace@tmp/durable-070664e3/jenkins-result.txt: nonexistent directory

Because Jenkins thinks its not in a container, Jenkins doesn't run the --volumes-from tag when it creates the Docker container.  I don't know if this is the root cause but it was all I can notice.