Desmond  Gerber

Desmond Gerber

1615197396

Developing JavaScript Applications on Kubernetes

Building a cloud development environment with Telepresence & NodeJS.

Modern organizations adopt Kubernetes to ship features faster. With Kubernetes, users can deploy and scale containerized applications at any scale: from one service to thousands of services. Oftentimes, the Kubernetes learning curve is particularly steep, especially for application developers. Kubernetes application development calls for new processes and new tools. So how do JavaScript developers create a development workflow on Kubernetes that is fast and effective?

There are two main challenges associated with building productive development experiments on Kubernetes:

  1. Kubernetes applications are designed to be native to the cloud, but most legacy development workflows are built for local development.
  2. Kubernetes applications are built on a microservices architecture. The development environment becomes more complex as new microservices add additional dependencies to your application. These  services quickly become too resource-intensive and exceed the limits of your local machine.

In this tutorial, we’ll set up a development environment for Kubernetes and make a change to a NodeJS microservice. To develop locally, we’d have to wait for a container build, push to a registry and deploy to see the effect of our code change. Instead, we’ll use  Telepresence to see the results of our change instantly.

Step 1: Deploy a Sample Microservices Application

For this example, we’ll make code changes to a NodeJS service running between a resource-intensive Java service and a large datastore. We’ll start by deploying a sample microservice application consisting of 3 services:

  • VeryLargeJavaService: A memory-intensive service written in Java that generates the front-end graphics and web pages for our application
  • DataProcessingService: A NodeJS service that manages requests for information between the two services.
  • VeryLargeDataStore: A large datastore service that contains the sample data for our Edgey Corp store.

#kubernetes #nodejs

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Developing JavaScript Applications on Kubernetes
Christa  Stehr

Christa Stehr

1602964260

50+ Useful Kubernetes Tools for 2020 - Part 2

Introduction

Last year, we provided a list of Kubernetes tools that proved so popular we have decided to curate another list of some useful additions for working with the platform—among which are many tools that we personally use here at Caylent. Check out the original tools list here in case you missed it.

According to a recent survey done by Stackrox, the dominance Kubernetes enjoys in the market continues to be reinforced, with 86% of respondents using it for container orchestration.

(State of Kubernetes and Container Security, 2020)

And as you can see below, more and more companies are jumping into containerization for their apps. If you’re among them, here are some tools to aid you going forward as Kubernetes continues its rapid growth.

(State of Kubernetes and Container Security, 2020)

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Ajay Kapoor

1626321063

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Jessica Smith

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