Setting Up NGINX as a Reverse Proxy for Kibana with OAuth2 Using App ID

Learn how to effectively use `NGINX` as a reverse proxy for `Kibana` with App ID as an OAuth2 provider, ensuring seamless authentication and access to your Kibana instance.
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How to Configure NGINX as a Reverse Proxy for Kibana with OAuth2 Provider

Setting up Kibana with an NGINX reverse proxy while utilizing an OAuth2 provider like App ID can be a complex task, especially if you're using Elastic Cloud on Kubernetes (ECK). Many users encounter issues when trying to authenticate and redirect users properly after logging in.

In this guide, we will delve into the solution for setting up NGINX as a reverse proxy for Kibana with an App ID OAuth2 provider, ensuring proper authentication and access without running into the Kibana login page unnecessarily.

Understanding the Problem

When configuring an NGINX reverse proxy with OAuth2 authentication, a common issue arises: even after successful authentication via SSO, users might be redirected to the standard Kibana login page instead of the application landing page. This situation often results from misconfigurations surrounding security features that are enabled by default in some versions of Kibana.

What You'll Need

Before diving into configurations, ensure you have the following in place:

An Elastic Stack deployed via ECK

A running instance of Kibana

NGINX configured as an ingress controller

App ID set up for OAuth2 authentication

Step-by-Step Configuration

1. Configure Kibana with User Credentials

To resolve the redirection issue to the login page, you might need to set up a file realm within Kibana for authentication. This configuration allows you to create a user with a username and password specifically for Kibana access.

Example Helm Command

Here’s how to template your Helm command to include the Kibana user configuration:

[[See Video to Reveal this Text or Code Snippet]]

2. Update Your Kibana Configuration

In the Kibana YAML manifest, make sure you configure the following relevant sections:

[[See Video to Reveal this Text or Code Snippet]]

3. Update the Ingress Configuration

As your Kibana deployment requires HTTPS backend communication, make sure you adjust the NGINX ingress configuration accordingly. Here’s an example setup:

[[See Video to Reveal this Text or Code Snippet]]

4. Test Your Configuration

After making all the required changes, deploy your configurations and test to see if users can log in without being redirected back to the login page.

Use your browser's developer tools to analyze the requests and ensure all headers are being sent correctly.

Troubleshooting Tips

Check if NGINX is correctly passing the authorization tokens.

Ensure that the App ID's configuration aligns with Kibana's security settings.

If you face HTTPS connection issues, validate your TLS settings and certificates.

Conclusion

Setting up NGINX as a reverse proxy for Kibana using an OAuth2 provider may initially seem daunting, but with the right configurations, it's achievable. This guide aimed to clarify the commonly overlooked aspects that can lead to authentication issues.

By following these structured steps, you should now be able to enjoy seamless access to your Kibana dashboard without unnecessary redirects to the login page.

If you have any questions or suggestions from your own experiences, feel free to leave a comment below!

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