About the Author
David Pitt

David Pitt

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David Pitt is a Sr. Solutions Architect and Managing Partner of Keyhole Software with nearly 25 years IT experience. Recent projects involve speaking, writing, and training developers in enterprise JavaScript​/single-page application​ development best practices​, as well as the development of GrokOla, the Q&A-based wiki software​ for development teams.​

Blockchain Implementation With Java Code

David Pitt Blockchain, Java Leave a Comment

Bitcoin is hot — and what an understatement that is. While the future of cryptocurrency is somewhat uncertain, blockchain, the technology used to drive Bitcoin, is also very popular.

Blockchain has an almost endless application scope. It also, arguably, has the potential to disrupt enterprise automation. There is a lot of information available covering what and how blockchain works. We have a free whitepaper that goes into blockchain technology (no registration required).

This blog will focus on the blockchain architecture, particularly demonstrating how the “immutable, append-only” distributed ledger works with simplistic code examples.

As developers, seeing things in code can be much more useful in understanding how it works, than simply reading technical articles. At least that’s the case for me. Let’s get started.



How an SMS Application Took a Job (i.e. Task)

David Pitt Conversational Apps, JavaScript, Keyhole Creations Leave a Comment

This blog is about a human’s job being replaced by automation. But, before you start composing emails and social media responses, know that it’s a job that I think most folks would gladly allow an automated mechanism to take over.

The “job” discussed in this blog is the need to contact individual users (in this case, employees) when those users forgot to accomplish a required task.

In this blog, we discuss a conversational application solution used internally at Keyhole Software for automated SMS text messaging features surrounding time tracking. The solution, implemented with conversational application platform KHS {Convo}, allowed for time entries to be submitted via text and automated, schedule-based notifications….



OpenShift Quick Start: Build, Deployment and Pipeline

David Pitt Microservices, OpenShift, Tutorial Leave a Comment

This post is a continuation of our hands-on OpenShift Quick Start blog series.

In the first post we introduced OpenShift & its features. In part two, you worked to get OpenShift running locally & adding a Container with an API service to a Pod. In part three, you worked on scaling pods and managing Cluster with the CLI.

This blog continues that series, introducing the automated Continuous Integration / Continuous Delivery (CICD) features of the OpenShift platform using both the Web Console and the Command Line. A hands-on exercise will then show how a Jenkins build Pipeline can be customized…



OpenShift Quick Start: CLI

David Pitt Microservices, OpenShift Leave a Comment

This post is a continuation of our hands-on OpenShift Quick Start blog series. In the first post we introduced OpenShift, and in part two, you worked to get OpenShift running locally & adding a Container with an API service to a Pod. Make sure you’ve completed that step prior to starting the continued exercise below!

The previous blogs in this series managed OpenShift using the web admin user interface. However, everything that can be done with the user interface can also be done from using the CLI (Command Line Interface). Arguably, developers prefer to interact with text commands, but that’s a generalization.

In this post, we’ll demonstrate common OpenShift commands can be done in the web admin from the command line.



OpenShift Quick Start

David Pitt Amazon Web Services, AWS, Docker, Microservices, OpenShift Leave a Comment

Our previous blog in the series introduced RedHat’s OpenShift solution that provides a way for enterprise teams to implement their own PaaS. Essentially, it sits atop the Docker-based Kubernetes platform to provide a ready-to-use DevOps platform.

This blog introduces two hands-on exercises (taken from our OpenShift Course), that work to walk you through the following tasks:

– Installing OpenShift locally
– Adding a Container with an API service to a Pod

Unfortunately, it will take more than this quick start blog to get OpenShift installed and enabled in an enterprise. That said, developers, system admins, and any party that may be working on or responsible for the platform, will benefit from understanding how to get OpenShift up and running on a local machine as shown in this blog.