Lab
A Cloud Guru

Using a Docker Bridge Network

By default, all containers on a host can communicate with one another over a default bridge network. However, in some cases, you may want to isolate groups of containers by allowing them to communicate over their own isolated network. In this lab, you will have the opportunity to create a custom bridge network designed to facilitate communication between containers on a Docker host.

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Path Info

Level

Intermediate

Duration

30m

Published

Jun 06, 2019

Challenge

Create the bridge network.
1. Create a bridge network called prices-net.
```
docker network create --driver bridge prices-net
```
Challenge

Create the base-price container.
1. Create a container for the component that serves base prices.
```
docker run --name base-price -d --network prices-net linuxacademycontent/prices-base-price:1
```
Challenge

Create the sales container.
1. Create a container for the component that serves products on sale.
```
docker run --name sales -d --network prices-net linuxacademycontent/prices-sales:1
```
Challenge

Create the total-price container.
1. Create a container for the component that serves the total prices of products.
```
docker run --name total-price -d --network prices-net -p 8080:80 linuxacademycontent/prices-total-price:1
```
1. Verify that everything is set up correctly.
```
curl localhost:8080
```
You should get a list of products and their final prices. The total-prices container calculates these prices by first querying the other two containers. This communication takes place over the prices-net bridge network.

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!

What's a lab?

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.