Lab
A Cloud Guru

Building a Docker Image via Dockerfile

When creating Docker images for websites, applications, and any service that may require any code change in the future, it's best to build in a way that can be quickly and easily rebuilt when any changes occur. Dockerfiles provide an in-platform way to do just that. In this lab, we'll be building a Dockerfile that can generate an image of our website that will make sure that when changes happen with the website code, we won't have to change the Dockerfile itself!

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Path Info

Level

Beginner

Duration

15m

Published

Aug 06, 2020

Challenge

Create the Dockerfile
The Dockerfile can be created in a number of ways, so long as it meets expectations. The following nine steps are suggested:
1. Define the desired container.
2. Update the packages on the container.
3. Install Nginx.
4. Update the Nginx configuration.
5. Create the location of the website files.
6. Set the working directory to that of the website.
7. Copy over website files, ensuring that Nginx is the owner.
8. Expose port 80.
9. Run Nginx at /tmp/nginx.pid; ensure Nginx is not set to run as a daemon.
Challenge

Test the Image
1. Use docker build to generate an image based on the provided Dockerfile
2. Create a web01 container based on the image, ensuring port 80 on the container maps to 80 on the host and the container is launched in the background.

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.