Create a Multi Node Docker Swarm Cluster

Introduction

In this post, we will explore Docker Swarm Cluster. We have already initiated Swarm mode in the previous post in a single node, and there are 5 containers running for our application Pythonapp.

In this post, we will add more node to the Swarm cluster. If you have not gone through the previous post, please go through it first as both are related.

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Create a Multi Container Docker Application

Introduction

So far, we have worked on those applications which are small and need only a single container. But in real world, a large and complex application does not run on a single container. Also, with the advent of Microservices, each component of a web based application typically runs on separate containers.

In this post, we will create multiple containers of an application and will run each container in Docker Swarm.

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Create a Docker Container From Multiple Files

Introduction

In the previous post, we have discussed how can we create a custom Docker container image.

In this post, we will build another custom Docker container image, this time a little more complex, using more than one files. Our container image will contain a Python based web application.

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