avatarBirat Rai

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Abstract

ding the request.</li><li><b>nginx.ingress.kubernetes.io/ssl-redirect</b>: Automatically redirect HTTP traffic to HTTPS.</li><li><b>nginx.ingress.kubernetes.io/limit-connections</b>: Limit the number of simultaneous connections to a service.</li><li><b>nginx.ingress.kubernetes.io/proxy-body-size</b>: Set the maximum body size for client requests.</li></ul><h1 id="42c1">TLS Termination</h1><p id="9937">TLS termination at the Ingress Controller level can be configured to offload SSL/TLS decryption from backend services. This involves creating TLS certificates using Kubernetes secrets and referencing them in Ingress resources.</p><p id="40af"><b>Example TLS Termination Configuration:</b></p><div id="8001"><pre><span class="hljs-attr">apiVersion:</span> <span class="hljs-string">networking.k8s.io/v1</span> <span class="hljs-attr">kind:</span> <span class="hljs-string">Ingress</span> <span class="hljs-attr">metadata:</span> <span class="hljs-attr">name:</span> <span class="hljs-string">example-ingress</span> <span class="hljs-attr">spec:</span> <span class="hljs-attr">tls:</span> <span class="hljs-bullet">-</span> <span class="hljs-attr">hosts:</span> <span class="hljs-bullet">-</span> <span class="hljs-string">example.com</span> <span class="hljs-attr">secretName:</span> <span class="hljs-string">example-tls-secret</span> <span class="hljs-attr">rules:</span> <span class="hljs-bullet">-</span> <span class="hljs-attr">host:</span> <span class="hljs-string">example.com</span> <span class="hljs-attr">http:</span> <span class="hljs-attr">paths:</span> <span class="hljs-bullet">-</span> <span class="hljs-attr">path:</span> <span class="hljs-string">/</span> <span class="hljs-attr">pathType:</span> <span class="hljs-string">Prefix</span> <span class="hljs-attr">backend:</span> <span class="hljs-attr">service:</span> <span class="hljs-attr">name:</span> <span class="hljs-string">example-service</span> <span class="hljs-attr">port:</span> <span class="hljs-attr">number:</span> <span class="hljs-number">80</span></pre></div><h1 id="dade">Usage</h1><h2 id="06f9">Creating Ingress Resources</h2><p id="8dbb">Ingress resources define how incoming traffic should be routed to services within the Kubernetes cluster. They specify rules based on hostnames and paths.</p><p id="0d6b"><b>Example Ingress Resource:</b></p><div id="7eab"><pre><span class="hljs-attr">apiVersion:</span> <span class="hljs-string">networking.k8s.io/v1</span> <span class="hljs

Options

-attr">kind:</span> <span class="hljs-string">Ingress</span> <span class="hljs-attr">metadata:</span> <span class="hljs-attr">name:</span> <span class="hljs-string">example-ingress</span> <span class="hljs-attr">spec:</span> <span class="hljs-attr">rules:</span> <span class="hljs-bullet">-</span> <span class="hljs-attr">host:</span> <span class="hljs-string">example.com</span> <span class="hljs-attr">http:</span> <span class="hljs-attr">paths:</span> <span class="hljs-bullet">-</span> <span class="hljs-attr">path:</span> <span class="hljs-string">/app</span> <span class="hljs-attr">pathType:</span> <span class="hljs-string">Prefix</span> <span class="hljs-attr">backend:</span> <span class="hljs-attr">service:</span> <span class="hljs-attr">name:</span> <span class="hljs-string">app-service</span> <span class="hljs-attr">port:</span> <span class="hljs-attr">number:</span> <span class="hljs-number">80</span> <span class="hljs-bullet">-</span> <span class="hljs-attr">path:</span> <span class="hljs-string">/api</span> <span class="hljs-attr">pathType:</span> <span class="hljs-string">Prefix</span> <span class="hljs-attr">backend:</span> <span class="hljs-attr">service:</span> <span class="hljs-attr">name:</span> <span class="hljs-string">api-service</span> <span class="hljs-attr">port:</span> <span class="hljs-attr">number:</span> <span class="hljs-number">80</span></pre></div><h1 id="7135">Testing</h1><p id="40ff">Once the Ingress resources are created, you can verify the routing by accessing your services using the specified paths and hostnames.</p><div id="78c0"><pre><span class="hljs-variable"> </span>curl <span class="hljs-symbol">http:</span>/<span class="hljs-regexp">/example.com/app</span></pre></div><div id="466d"><pre><span class="hljs-variable"> </span>curl <span class="hljs-symbol">http:</span>/<span class="hljs-regexp">/example.com/api</span></pre></div><h1 id="b3cd">Conclusion</h1><p id="17b6">Nginx Ingress Controller is a powerful tool for managing inbound traffic to your Kubernetes cluster. By following this guide and experimenting with different configurations, you can effectively route traffic to your services, enforce security policies, and optimize the performance of your applications. Be sure to explore additional features and advanced configurations available in the official documentation to further enhance your networking setup.</p></article></body>

Step 54: The Longevity of Interim Solutions ~ Klaus Marquardt

This is the 54th Step towards gaining the Programming Enlightenment series. If you didn’t learn the 53rd Step, read it.

What is Interim Solutions?

In every project there will be need of some temporary solution to fix release critical bug or some missing functionality. This solution, an interim one, is thought to be considered a draft to be changed sometime, which doesn’t adhere to the standards and guidelines.

What is longevity of Interim Solutions?

Because it solves the problem, it becomes widely accepted and there is no change to be made immediately, it stays there. It doesn’t carry any weight hence, during following work timelines, it gathers dust and other valuable tasks are accomplished. So, the interim solution remains in place. Forever.

Is Interim Solution a problem?

The problem with interim solution grows as the system starts to contain too many interim solutions. The entropy or internal complexity grows and its maintainability decreases.

What to do to if we see a problem?

We can apply the following approach:

  • Avoid creating an interim solution in the first place.
  • Change the forces that influence the decision of the project manager.
  • Leave it as is.
May you be granted the serenity to accept the things you cannot change, courage to change the things you can, and wisdom to know the difference.

TL;DR Avoid interim solution, unless it is unavoidable.

Go to the series.

Go to 53rd Step

Go to the 55th Step.

References:

Interim Solution
Java
Android
Software Development
Programming
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