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Docker Swarm

Authentication

Before you create a Docker Machine with Ionos Cloud Docker Machine Driver, make sure you followed the Authentication steps.

Docker Machine Create Swarm Command

You can use Docker Machine to provision Swarm clusters.

Before you create a swarm of Ionos Cloud machines, run this command:

docker swarm init

Then use the output ${DOCKER_SWARM_TOKEN} to create the swarm and set a swarm master:

docker-machine create --driver ionoscloud --swarm --swarm-master --swarm-discovery token://${DOCKER_SWARM_TOKEN} swarm-master-test

It should produce results similar to this:

Running pre-create checks...
Creating machine...
(swarm-master-test) Creating SSH key...
(swarm-master-test) DataCenter Created
(swarm-master-test) IPBlock Reserved
(swarm-master-test) LAN Created
(swarm-master-test) Server Created
(swarm-master-test) Volume Attached to Server
(swarm-master-test) NIC Attached to Server
(swarm-master-test) 158.222.102.158
Waiting for machine to be running, this may take a few minutes...
Detecting operating system of created instance...
Waiting for SSH to be available...
Detecting the provisioner...
Provisioning with ubuntu(systemd)...
Installing Docker...
Copying certs to the local machine directory...
Copying certs to the remote machine...
Setting Docker configuration on the remote daemon...
Configuring swarm...
Checking connection to Docker...
Docker is up and running!
To see how to connect your Docker Client to the Docker Engine running on this virtual machine, run: docker-machine env swarm-master-test

To create a swarm child, use the command:

docker-machine create -d ionoscloud --swarm --swarm-discovery token://${DOCKER_SWARM_TOKEN} swarm-child-test

When running docker-machine ls, it should produce results similar to this:

NAME                ACTIVE   DRIVER       STATE     URL                          SWARM                        DOCKER     ERRORS
swarm-child-test    -        ionoscloud   Running   tcp://158.222.102.154:2376   swarm-master-test            v20.10.5   
swarm-master-test   *        ionoscloud   Running   tcp://158.222.102.158:2376   swarm-master-test (master)   v20.10.5

For more details about possible issues, check the Troubleshooting guide.