Portainer and Docker Swarm

In the previous section, we looked at how to use Portainer on a standalone Docker instance. Portainer also supports Docker Swarm clusters, and the options in the interface adapt to the clustered environment. We should look at spinning up a Swarm and then launching Portainer as a service and see what changes.

So let's start by launching a new Docker Swarm cluster.

Creating the Swarm

As in the Docker Swarm chapter, we are going to be creating the Swarm locally using Multipass; to do this, run the following commands to launch the three nodes:

$ multipass launch -n node1
$ multipass launch -n node2
$ multipass launch -n node3

Now install Docker:

$ multipass exec node1 -- \
	/bin/bash -c 'curl -s https://get.docker.com | sh - && sudo 
usermod -aG docker ubuntu'
$ multipass exec node2 -- \
	/bin/bash -c 'curl -s https://get.docker.com | sh - && sudo 
usermod -aG docker ubuntu'
$ multipass exec node3 --...