Gaining Docker Image Size Efficiencies By Separating Application Layers

Luke Patterson Articles, Development Technologies & Tools, Docker, Java, Spring Boot Leave a Comment

Problem

I was pushing a new Docker image tag for each application code commit, and the admins of the private registry were getting annoyed at how much space I was using.

Solution Summary

Yes, I know there are strategies to clean up old tags but I first wanted to reduce the impact of the tags I was pushing. With the right layering strategy, I knew I could reduce the net registry size increase of consecutive tag pushes.

I wanted to only push what had actually changed in the application. In addition to reducing the impact on the registry, having smaller tag deltas could possibly speed up rolling deployments since nodes could potentially have less to download.

Using MongoDB and Spring Boot to Create a RESTful Web Service

Robert Rice Articles, Development Technologies & Tools, Java, Spring, Spring Boot 1 Comment

Spring Boot is a framework designed to simplify the bootstrapping and development of a new Spring application. The framework takes an opinionated approach to configuration, freeing developers from the need to define a boilerplate configuration. MongoDB is a simpleย set up and easy to use document database. A RESTful API is an application program interface (API) that uses HTTP requests to GET, PUT, POST and DELETE data.

In this post, I will demonstrate the process of creating a RESTful web application with Spring Boot and MongoDB.

Building a Node.js Service with AWS Lambda, DynamoDB, and Serverless Framework

Matthew Brown Articles, AWS, Cloud, JavaScript, Node.js, Tutorial 3 Comments

My favorite new technology as a developer is serverless computing. The convenience and cost make it a very compelling choice for running options in the cloud. Especially for proof of concepts or quick ways to prove out ideas. Using serverless computing to get up and running takes very little effort and the costs of running an application in the cloud are minimal. Serverless really empowers developers to act on ideas as quickly as possible.

In this post, I’m going to briefly touch on what serverless computing is and the pros and cons of using it. Then I will build a Node.js service to do CRUD operations using AWS Lambda, DynamoDB, and the Serverless Framework. You can view the finished product on Github.

Keyhole Announces Kansas City Hyperledger Blockchain User Group

Keyhole Software Articles, Blockchain, Community, Company News, Educational Event, Hyperledger Leave a Comment

The Keyhole Software team is excited to announce that we are the new organizers of the official Hyperledger Kansas City Meetup group.

This meetup group will discuss all topics related to Hyperledger blockchains. The group seeks to provide an opportunity for Kansas City professionals to network with others who are interested in, or working with, Hyperledger blockchain networks.ย 

Hyperledger is an open source collaborative effort created to advance cross-industry blockchain technologies. It is a global collaboration hosted by The Linux Foundation including leaders in finance, banking, Internet of Things, supply chain, manufacturing, and technology.ย 

The first inaugural meetup of the group is scheduled for Wednesday, December 5, 2018, titled “Hyperledger Fabric In Action.”

Get RSVP’d to attend…

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Refreshing Your Scrum

Keith Shakib Agile, Articles, Consulting, Design, Project Management, Soft Skills 3 Comments

Most of us now have some experience with Agile Scrum practices. Many of us have had years of practice on multiple processes. As a consultant, I have the opportunity to see many differences in how organizations implement and practice the most popular development process methodologies.

While the prescription for good practices is well-documented, many of us have lost our โ€œmojoโ€ at least once and seen many of the benefits of using the process decline.

In this blog, I will indicate some key points required to return to optimal agile performance. I will highlight three common pitfalls, some common causes of those problems, and reminders of how to get back to a high-performance Scrum implementation. Letโ€™s dive in.