The Install Lab Environment:Troubleshooting says, "If you still cannot use the lab environment, depending on your training type:'Self Paced': please open a ticket by following the instructions found in the 'Open a training ticket' at the start of the course." But I can't find "Open a training ticket."
I see several people here have reported the same issue without resolution: I can't access the Lab Home Page because not all of the containers are starting.
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
fbe2ecafdb28 cloudbees/training-jenkins-agent:jdk7-master-b8c2e2dd2abc7edf474f2e75aa95d28f0154bd65 "/sbin/tini -g -- ba…" 2 minutes ago Up About a minute 22/tcp, 2375-2376/tcp jdk7-ssh-agent
e3a015e07ff1 verb/socat:alpine "/usr/bin/socat tcp-…" 2 minutes ago Up About a minute 2375/tcp docker_docker-service_1_b3a61dd506e1
16bf30011234 cloudbees/training-devbox:master-b8c2e2dd2abc7edf474f2e75aa95d28f0154bd65 "/sbin/tini -g -- ba…" 2 minutes ago Up About a minute 2375-2376/tcp, 7681/tcp devbox