Gaining Docker Image Size Efficiencies By Separating Application Layers

Luke Patterson Docker, Java, Problem Solving, Spring Boot, Technology Snapshot 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 Java, Spring Boot, Technology Snapshot Leave a 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 simple 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.

Interactive REST API Documentation with Swagger UI

Bing Liu Microservices, Spring, Spring Boot, Technology Snapshot Leave a Comment

I am assisting a client that is migrating from a monolithic legacy application to a modern Microservice stack with Spring REST. We are helping to implement Swagger UI to provide both a front-end API UI, as well as to provide a level of documentation at the same time. This implementation has simultaneously met our project requirements, as well as garnering some positive feedback from our client!

Swagger UI is one of the most popular tools to visually render beautiful, interactive API documentation. In this blog, I’ll use a REST API application to demonstrate some usage of Swagger UI. The source project is available at https://github.com/bingliu2016/spring-boot-rest-swagger2.

Release: Hyperledger Blockchain Analytics Tool

Keyhole Software Blockchain, Company News, Hyperledger, Java, JavaScript, Keyhole Creations, Node, React, Technology Snapshot Leave a Comment

We are proud to announce the new release of a Hyperledger Fabric Blockchain Browser open source web application. This application utility allows developers and operators of Hyperledger blockchain networks to have visibility into transactions and blocks as they are added to the network.

Capabilities
The KHS Blockchain Browser is a React/Node.js web application that…

Using Amazon ElastiCache for Redis To Optimize Your Spring Boot Application

Brandon Klimek AWS, Java, Spring, Spring Boot, Technology Snapshot 1 Comment

Has your project gotten to the point when big data sets and/or time-consuming calculations have begun to affect performance? Or are you struggling to optimize your queries and need to cache some information to avoid continually hitting your database? Then caching could be your solution.

For this article, I will demonstrate how to utilize Amazon ElastiCache for Redis to speed up areas of your application. The example application we will build uses Spring Boot 2.x and is available on Github.