Question
How to solve Unable to query docker version: Cannot connect to the docker engine endpoint
- Posted on June 12, 2020
- DockerUbuntu 18.04
Asked by kungusamuel90
I am using docker-engine to provision a docker-swarm cluster on DO, some days back it was working okay. Today when I run the same command for creating the servers/nodes and master, it never finishes. it quits with,
Detecting operating system of created instance...
Waiting for SSH to be available...
Error creating machine: Error detecting OS: Too many retries waiting for SSH to be available. Last error: Maximum number of retries (60) exceeded
Error creating machine: Error detecting OS: Too many retries waiting for SSH to be available. Last error: Maximum number of retries (60) exceeded
Error creating machine: Error detecting OS: Too many retries waiting for SSH to be available. Last error: Maximum number of retries (60) exceeded
On running docker-machine ls
NAME ACTIVE DRIVER STATE URL SWARM DOCKER ERRORS
dvc1 - digitalocean Running tcp://167.71.166.153:2376 Unknown Unable to query docker version: Cannot connect to the docker engine endpoint
dvc2 - digitalocean Running tcp://104.248.11.198:2376 Unknown Unable to query docker version: Cannot connect to the docker engine endpoint
dvc3 - digitalocean Running tcp://167.71.170.118:2376 Unknown Unable to query docker version: Cannot connect to the docker engine endpoint
Even when I try to regenerate the certs, it never finishes. I didn’t touch anything since it was running before. I have tried using different ubuntu variations but still gets the same problem.
Thanks guys for any suggestions or help.
docker-machine version - 0.16
docker version - 19.03.8
Mac OS catalina 10.15.5
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Hi there @kungusamuel90,
It looks like that the SSH connection to your Droplets is not working. I would recommend first checking the status of your Droplets to make sure that they are up and running and if so I would recommend accessing them directly and making sure that the SSH service is running and also checking your server logs to see if there are any errors.
Another thing that you could check is the firewalls on all of your Droplets and make sure that the necessary ports are open.
Let me know how it goes! Regards, Bobby