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Intro to Jenkins 2 and the Power of Pipelines 1. Overview In this article, we’re going to showcase the usage of pipelines through an example of continuous delivery using Jenkins. We’re going to build a simple, yet quite useful pipeline, for our sample project: Compilation Simple static analysis (parallel with… Continue Reading jenkins-pipelines
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Trampoline – Managing Spring Boot Applications Locally 1. Trampoline Overview Historically, a simple way to understand the state of our system at runtime was to run it manually in a terminal. Best case scenario, we’d automatize everything using scripts. Of course, the DevOps movement changed all of that, and, fortunately,… Continue Reading trampoline
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Introduction to Apache Curator 1. Introduction Apache Curator is a Java client for Apache Zookeeper, the popular coordination service for distributed applications. In this tutorial, we’ll introduce some of the most relevant features provided by Curator: Connection Management – managing connections and retry policies Async – enhancing existing client by… Continue Reading apache-curator
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Managing EC2 Instances in Java 1. Overview In this article, we’ll learn to control EC2 resources using the Java SDK. If you’re new to ** EC2 (Elastic Cloud Compute) – this is a platform which provides compute capacity in Amazon’s cloud. 2. Prerequisites The Maven dependencies, AWS account settings and… Continue Reading ec2-java
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Guide to Spring Cloud Kubernetes 1. Overview When we build a microservices solution, both Spring Cloud and Kubernetes are optimal solutions, as they provide components for resolving the most common challenges. However, if we decide to choose Kubernetes as the main container manager and deployment platform for our solution, we… Continue Reading spring-cloud-kubernetes
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A Guide To Cron Expressions 1. Overview Simply put, cron is a basic utility available on Unix-based systems. It enables users to schedule tasks to run periodically at a specified date/time. And, it’s naturally a great tool for automating lots of process runs which otherwise would require human intervention. Cron… Continue Reading cron-expressions
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The Checker Framework – Pluggable Type Systems for Java 1. Overview From the Java 8 release onwards, it’s possible to compile programs using the so-called Pluggable Type Systems – which can apply stricter checks than the ones applied by the compiler. We only need to use the annotations provided by… Continue Reading checker-framework
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Spring Cloud Connectors and Heroku 1. Overview In this article, we’re going to cover setting up a Spring Boot application on Heroku using Spring Cloud Connectors. Heroku is a service that provides hosting for web services. Also, they provide a large selection of third-party services, called add-ons, that provide everything… Continue Reading spring-cloud-heroku
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Scheduling a Job in Jenkins 1. Introduction In this article, we’ll cover various ways of scheduling jobs in Jenkins. We’ll begin with scheduling a simple job that performs something as simple as printing a plain text message. And we’ll evolve the example into scheduling a job that gets automatically triggered… Continue Reading jenkins-job-schedule
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Spring Boot Exit Codes 1. Overview Every application returns an exit code on exit; this code can be any integer value including negative values. In this quick tutorial, we’re going to find out how we can return exit codes from a Spring Boot application. 2. Spring Boot and Exit Codes… Continue Reading spring-boot-exit-codes
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