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Simplifying SSL Certificate Management in OpenShift with Secrets

Discover how to manage SSL certificates easily in OpenShift by creating a secret and using it instead of multiple YAML configurations. --- This video is based on the question https://stackoverflow.com/q/74773975/ asked by the user 'user804401' ( https://stackoverflow.com/u/804401/ ) and on the answer https://stackoverflow.com/a/74781109/ provided by the user 'HKBN-ITDS' ( https://stackoverflow.com/u/17316835/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions. Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: OpenShift create SSL Certificate as secret Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l... The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license. If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com. --- Simplifying SSL Certificate Management in OpenShift with Secrets Managing SSL certificates for multiple services in OpenShift can quickly become overwhelming. Each service usually has its own unique route, which means every time a certificate expires or needs to be updated, the associated YAML files for those routes must also be modified. This process can lead to errors and increased downtime if not handled correctly. But fear not! There is a more efficient way to manage your SSL certificates in OpenShift using secrets. The Problem: Managing Multiple SSL Certificates As your application grows, so does the complexity of managing multiple SSL certificates for various services. Here are some challenges faced: Multiple Certificates: Each service requiring its own .cer and .key file increases maintenance overhead. YAML Complexity: Updating these certificates means modifying multiple YAML files, which is tedious and error-prone. Risk of Downtime: If a certificate expires and isn't updated across all services, it can lead to service disruptions. Clearly, a simplified and centralized approach is needed to streamline certificate management. The Solution: Using SSL Certificates as Secrets OpenShift provides a solution through its ingress-operator. By utilizing secrets, you can specify SSL configurations centrally in your ingress controller pod, reducing the need for individual service updates. Here’s how to do it. Step 1: Create a TLS Secret To start, you need to create a secret that will store your SSL certificate and key. You can accomplish this with the following command: [[See Video to Reveal this Text or Code Snippet]] Explanation: Replace <secret_name> with your desired name for the secret. Replace <cert_name_PEM> with the path to your SSL certificate file. Replace <cert_key> with the path to your SSL key file. The -n openshift-ingress specifies the namespace where the secret will be created. Step 2: Patch the Ingress Controller Once the secret is created, the next step is to patch your ingress controller to use this secret for SSL termination. Use the following command: [[See Video to Reveal this Text or Code Snippet]] Explanation: This command updates the default ingress controller to reference the newly created TLS secret. This means all routes will now utilize the provided certificate, and you won't need to change each route's YAML configuration separately. Benefits of Using Secrets for SSL Certificates Centralized Management: Update the certificate in one location that automatically applies to all routes. Reduced Errors: Minimizes the risk of service interruptions by ensuring SSL configurations are consistent. Efficiency: Saves time and effort when handling expiring certificates. Conclusion By leveraging OpenShift's powerful features like ingress controllers and secrets, managing SSL certificates becomes a breeze. Instead of juggling multiple .cer and .key files across various service YAML configurations, you can now centralize your SSL management, making deployments easier and more reliable. Whether you’re scaling up your applications or just aiming for cleaner configurations, this approach will undoubtedly enhance your workflow. Say goodbye to the hassle of manually updating certificates and embrace a more automated solution with OpenShift.