Getting started with Jenkins Part 4.2: Code Quality Tests via Checkstyle


Today, we will show how to use Checkstyle for improving the style of Java code. First, we will add Checkstyle to Gradle in order to create XML reports for a single build. Jenkins allows us to visualize the results of more than one test/build run into historic reports. After that, we will show, how a developer can … More Getting started with Jenkins Part 4.2: Code Quality Tests via Checkstyle

Getting started with Jenkins Part 4.1: Functional Java Tests via JUnit


You also think that functional tests are one of the most important ingredients for delivering high quality software? You share my opinion that we should help the developer automating this task in order to get comparable results and to receive meaningful trend reports? I will cover functional tests here. Instructions on how to perform code quality tests and performance … More Getting started with Jenkins Part 4.1: Functional Java Tests via JUnit

Getting started with Jenkins Part 3: periodic vs triggered Builds


Today, we will make sure that Jenkins will detect a code change in the software repository without manual intervention. We will show two methods to do so: Periodic Builds via Schedulers: Jenkins periodically asks the software repository for any code changes Triggered Builds via Webhooks: Jenkins is triggered by the software repository to perform the build … More Getting started with Jenkins Part 3: periodic vs triggered Builds

Getting Started with Mesos Resource Reservation & Marathon Watchdog – A “Hello World” Example


Today, we will introduce Apache Mesos, an open source distributed computing system with the target to allow applications to run on a computer cluster as if it was running on a single computer. On top of a Mesos cluster, we will run Mesosphere Marathon, an open source container orchestration platform. Similar to a watchdog, Marathon helps running and maintaining … More Getting Started with Mesos Resource Reservation & Marathon Watchdog – A “Hello World” Example

Getting started with Jenkins Part 2: automated Code download and Build (Gradle + Maven)


NEW (2017-01-02): you now can immediately start with part 2 (this post) without going through the steps of part 1. A corresponding pre-installed Docker image is provided. NEW (2017-01-05): I have added the Maven build path with a fat executable JAR file. In this blog post, we will perform our first automated job within Jenkins, the … More Getting started with Jenkins Part 2: automated Code download and Build (Gradle + Maven)

Getting started with Jenkins Part 1: Installation in the Docker Way


In this blog post, we will deploy and get started with Jenkins, the most popular open source tool for Continuous Integration and Continuous Deployment. As a modern way of installing, we install a Docker host and deploy a Jenkins Docker container on this host. Then we will log in and install commonly used plugins, before … More Getting started with Jenkins Part 1: Installation in the Docker Way

How to set up Docker Monitoring via cAdvisor, InfluxDB and Grafana


Have you ever tried to monitor a docker solution? In this blog post, we will discuss three open source docker monitoring alternatives, before we will go through a step by step guide of a docker monitoring alternative that consist of the components Google cAdvisor as data source, InfluxDB as the database and Grafana for creating the graphs. The post is … More How to set up Docker Monitoring via cAdvisor, InfluxDB and Grafana

Docker HTTP Proxy and DNS Configuration Cheat Sheet (now includes automatic HTTP Proxy detection)


This blog post provides a little cheat sheet on running a Linux host with or without a Docker client behind HTTP proxies. For Ubuntu and similar Linux distributions, we will also show how to detect the proxy available and adapt the proxy settings accordingly. This comes handy, if you are a road warrior that often … More Docker HTTP Proxy and DNS Configuration Cheat Sheet (now includes automatic HTTP Proxy detection)

LXD vs. Docker — or: getting started with LXD Containers


Container technology is not new: it had existed long before the Docker hype around container technology has started after 2013. Now, with Docker containers having reached mainstream usage, there is a high potential of getting confused about available container types like Docker, LXC, LXD and CoreOS rocket. In this blog post we will explain, why LXD is not … More LXD vs. Docker — or: getting started with LXD Containers

Getting started with OpenShift Container Platform


In this blog post we will review the architecture of OpenShift before we will gain some hands-on experience with OpenShift Origin, which is the free version of the OpenShift Container Platform a.k.a. OpenShift Enterprise. Vagrant software will help us to automate the installation of an all-in-one OpenShift Virtual Machine deployed as a VirtualBox image. We will spin up a simple … More Getting started with OpenShift Container Platform