Since I've upgraded to 2.51 I cannot build jobs running on Slave provided by my Cloud.
I use the Amazon-ecs-plugin (https://wiki.jenkins-ci.org/display/JENKINS/Amazon+EC2+Container+Service+Plugin) to generate Nodes on demand. It has been working for months.
Now the builds get stuck at:
Still waiting to schedule task
Jenkins doesn’t have label docker
I have a valid cloud configuration that provides Nodes for the label `Docker`