Implementing TLS in Kubernetes

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Node.js Landing Page

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Node.js

Node.js is a platform built on Chrome's JavaScript runtime for easily building fast, scalable network applications

In the following sections, you'll implement TLS for a simple Kubernetes application using a Node.js project that mocks a payment processing application. The application code and necessary Kubernetes configuration are available in this GitHub repository.

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Let's Encrypt Landing Page
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Let's Encrypt

Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
Pricing:
- Open Source
When implementing TLS for a production system, you should consider using a public certificate from a trusted CA, such as Let's Encrypt. While this requires that you have access to your site domain, you can implement additional configurations, such as using a load balancer service to expose your application or managing multiple certificates through a certificate manager like cert-manager. The advantages of exposing your application through a load balancer include improved availability, scalability, and resilience. And using a certificate manager makes the provisioning and management of your cluster certificates effortless in the future.

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Kubernetes Landing Page
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Kubernetes

Kubernetes is an open source orchestration system for Docker containers
Pricing:
- Open Source
As cloud technology continues to evolve, the demand for Kubernetes is skyrocketing. As a result, security has become a top priority for developers looking to protect their application data. That's where Transport Layer Security (TLS) comes into play. TLS is essential for ensuring a secure connection between your applications and the internet.

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Kind Landing Page
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Kind

Kind is a web-based tool that provides you the features to operate the local kubernetes clusters with the help of a docker container named nodes.
Pricing:
- Open Source
A Kubernetes distribution: You need to install a Kubernetes distribution to create the Kubernetes cluster and other necessary resources, such as deployments and services. This tutorial uses kind (v0.18.0), but you can use any other Kubernetes distribution, including minikube or K3s.

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k3s Landing Page
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k3s

K3s is a lightweight Kubernetes distribution by Rancher Labs intended for IoT, Edge, and cloud deployments.
Pricing:
- Open Source
A Kubernetes distribution: You need to install a Kubernetes distribution to create the Kubernetes cluster and other necessary resources, such as deployments and services. This tutorial uses kind (v0.18.0), but you can use any other Kubernetes distribution, including minikube or K3s.

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Istio Landing Page
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Istio

Open platform to connect, manage, and secure microservices
Pricing:
- Open Source
End-to-end data encryption with a service mesh: Using an end-to-end data encryption mechanism with a service mesh like Istio, TLS can secure communication between different microservices within a Kubernetes cluster. This is a popular approach for modern, distributed microservice architectures.

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Helm.sh Landing Page
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Helm.sh

The Kubernetes Package Manager
Pricing:
- Open Source
Git and Helm: You need Git installed to use the demo project locally and the Helm package manager for Kubernetes. This guide uses Helm v3.11.2.

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Git Landing Page
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Git

Git is a free and open source version control system designed to handle everything from small to very large projects with speed and efficiency. It is easy to learn and lightweight with lighting fast performance that outclasses competitors.
Pricing:
- Open Source
Git and Helm: You need Git installed to use the demo project locally and the Helm package manager for Kubernetes. This guide uses Helm v3.11.2.

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Docker Landing Page
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Docker

Docker is an open platform that enables developers and system administrators to create distributed applications.
Pricing:
- Open Source
A container runtime engine: For this article, we will assume you have Docker installed and configured on your workstation.

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