Creating and managing a Swarm

Let's now take a look at using Swarm and how we can perform the following tasks:

• Creating a cluster
• Joining workers
• Listing nodes
• Managing a cluster

Creating a cluster

Let's start by creating a cluster, which starts with a Swarm manager. Since we are going to be creating a multi-node cluster on our local machine, we should use Docker Machine to launch a host by running this command:

$ docker-machine create \
    -d virtualbox \
    swarm-manager

An abridged version of the output you get is shown here:

(swarm-manager) Creating VirtualBox VM...
(swarm-manager) Starting the VM...
(swarm-manager) Check network to re-create if needed...
(swarm-manager) Waiting for an IP...
Waiting for machine...