I have been testing Docker Cloud for about three weeks on Azure, and on February 24th, 2016, and today, I received a message as:
Lost Contact with the docker daemon in [id].node.dockerapp.io
Regarding to this message, as you can guess it all stopped working. Also status of my services did not change, and stayed in ‘Running’ state. On Azure, there was not any problem with the host.
If you need more information about my cluster, I would love to share it. Only problem is, I am a free tier user, and for mitigating this issue, I terminated the old instance and spun up a new one. In case you need next time when it happens I can ssh into the machine, and check docker daemon logs.