docker container resource in a pacemaker clusters fails to start

I have two-node pacemaker cluster on Centos7 with /var/lib/docker built on drbd primary/secondary resource. All resources are grouped in a group “res_group”. All resources except the container resource (nginx service) starts properly in the cluster. The nginx/container resource when I start it on on both nodes available in the cluster, fails with error: Master/Slave Set:…