Native Docker Clustering with Swarm

Deploy a replicated nginx

We get in touch with how to use services on Swarm by starting with a simple sample: Deploy and scale Nginx.

A minimal Swarm

To make this chapter self-sufficient and useful for developers who are reading it as a stand-alone chapter. Let's quickly create a minimal Swarm Mode architecture locally, made of one manager and three workers:

1. We spawn up four Docker hosts:

         for i in seq 3; do docker-machine create -d virtualbox 
         node- $i; done
   

2. We then take control of node-1, which we elect as our static manager, and initialize it on a Swarm:

   eval $(docker-machine env node-1)
   docker swarm init --advertise-addr 192.168.99.100
   

3. Docker generates a token, for us, to join our three workers. So we just copy-paste that output to iterate through ...