[Video] DevOps Orchestration: Kubernetes, OpenShift & Cloud Foundry

Keyhole Software DevOps, Docker, Educational Event, Keyhole, Microservices, OpenShift, Technology Snapshot, Tutorial Leave a Comment

The Keyhole team is excited to share an internal educational video that is now available to the public. In our first-ever video release, we discuss microservices platform orchestration from a broad scope.

Specifically, Principal Consultant Jaime Niswonger takes a technology-agnostic look at the “big ideas” integral to platform orchestration for the enterprise. He introduces three popular orchestration platforms, Kubernetes, OpenShift, and Cloud Foundry, and discusses scaling container deployments in the enterprise. The video is 60 minutes in duration.

Go “On The Fly”

David Pitt Keyhole Creations, Programming, Technology Snapshot, Tutorial Leave a Comment

People that know me, know that I love to fly fish and tie flies. I made up the saying “Time flies when you’re tying flies.” It is true, just like when you are trying to solve a programming problem, time flies.

Over the past few years, we at Keyhole have utilized Docker (with assorted technologies) and have gotten up to speed on the Hyperledger blockchain framework. Something that all of these technologies have in common is the Go language. Go is the language used to implement Docker, Hyperledger, OpenShift, and many other system-level applications.

Personally, I like to peek under the hood to better understand the tools I’m using. That led me to learning about the Go language. And in my opinion, the best way to learn a language is to build something.

So, I built an application for fly tying videos. There are numerous fly tying tutorials on YouTube, so I built an application that allows them to be organized into virtual fly boxes and types.

In this blog, I will introduce you to the Go language. We’ll go over some of the key language concepts by walking through how the https://flytyerworld.com server-side API is implemented using Go.

Picking A Graph Database: ArangoDB, Neo4j, or OrientDB

John Hoestje Databases, Opinion, Problem Solving, Programming Leave a Comment

TL;DR

– Spoiler alert! Graph databases are a great option for storing complex and highly connected data.
– In this post, I compare the benefits and risks of graph databases ArangoDB, Neo4j, and OrientDB for a client project.
– Due to the combination of performance and cost, I chose ArangoDB for my client’s needs.

Integrating Azure Functions with Cosmos DB SQL API in .NET Core 2.2

Zach Gardner .NET Core, Azure, Technology Snapshot, Tutorial Leave a Comment

I am working on a project that leverages both Azure Functions as well as Cosmos DB. In trying to get both of these components wired together, I found that there are very few examples that work with the most recent versions of these components. I also saw examples that could work at a small scale, but don’t show industry-standard best practices, and would lead to performance issues if deployed in an environment with any meaningful traffic.

To that end, I put together this blog post showing how to set up an Azure Functions project in .NET Core 2.2 to integrate with Cosmos DB’s SQL API using its native tooling.

JavaScript Optional Chaining – An Introduction

Lawrence Chabela CSS & HTML, JavaScript, Problem Solving, Technology Snapshot 1 Comment

There is a new exciting feature coming to JavaScript in the not-so-far future. That feature is Optional Chaining. At this moment, Optional Chaining is in Stage 3 of the TC39 process, so it’s in late stages of the process and will be here soonish.

In general terms, Optional Chaining is an approach to simplify JavaScript expressions for accessing deeply nested values, array items, and methods when there is a possibility that a reference may be missing.

In this blog, we give an introduction to Optional Chaining in JavaScript. We discuss what problems Optional Chaining solves, the various ways you can use it, and relatable code examples.