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Docker NGINX auth_request | An Introduction

Docker NGINX auth_request refers to when NGINX is deployed within a Docker container and configured to use the auth_request module for authentication and authorization purposes.

Let’s take a quick look at how to setup Docker NGINX auth_request:

1. First, we have to create a directory for our NGINX configuration files and Dockerfile.
2. Then, we must create a Dockerfile within this directory:

   
   
3. Next, it is time to customize the NGINX configuration files to define our server settings, proxy rules, and protected locations.
4. After that, we have to open a terminal and navigate to the directory that has our Dockerfile and configuration files.
5. Then, we can run this command to build our Docker image:

   docker build -t my-nginx
6. Now, we have to run an NGINX Container based on that image with this command:

   docker run -d -p 80:80 --name my-nginx-container my-nginx
7. Then, we have to head to our NGINX configuration file and configure the protected location with auth_request:

   
8. Then, run an oauth2_proxy container to handle authentication:

   
   

How to Access Our Application

1. First, we have to head to http://localhost/protected in our web browser to access our application.
2. Then, NGINX will trigger the auth_request subrequest to oauth2_proxy for authentication.
3. After that, oauth2_proxy will handle the OAuth 2.0 authentication flow and redirect as needed.
4. Now, NGINX will grant access to the protected location.

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Conclusion

In summary, our Support Techs demonstrated how to implement auth_request with ease.