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A Cloud Guru

Setting Up Docker Swarm

After years of running containers on a single Docker host, you’ve decided to migrate over to using Docker Swarm. Using Swarm will allow your clients to scale the number of containers up, as demand increases, and then down as demand dies off. Before you can do this, you first need to set up a Swarm cluster consisting of a manager and a worker node. Once setup is complete, create an Nginx service to test the cluster.

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Path Info

Level

Intermediate

Duration

1h 0m

Published

Apr 04, 2019

Challenge

Initialize the Swarm

On the manager node, initialize the swarm:

[cloud_user@manager]$ docker swarm init 
--advertise-addr [MANAGER_PRIVATE_IP]

Challenge

Add the Worker to the Cluster

Add the worker to the cluster:

[cloud_user@worker]$ docker swarm join --token [TOKEN] 
[MANAGER_PRIVATE_IP]:2377

Challenge

Create a Swarm Service

Create nginx_service:

[cloud_user@manager]$ docker service create -d --name nginx_service -p 8080:80 --replicas 2 nginx:latest

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

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Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.