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…
Jenkins Part 3.1: 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…
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…
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…
Cassandra „Hello World“ Example
Today, we will introduce Cassandra, a distributed and resilient, highly scalable noSQL database. For simplicity, we will run a cluster within Docker containers. We will test the resiliency functions by killing one of two containers and verifying that all data…
Jenkins Part 1: Installation 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…
Kibana „Hello World“ Example – Part 3 of the ELK Stack Series
Today, we will introduce Kibana, a data visualization open source tool. As part of Elastic's ELK stack (now called Elastic stack), Kibana is often used to visualize logging statistics and for management of the Elastic Stack. However, in this Tutorial, we…
Elasticsearch „Hello World“ Example – Part 2 of the ELK Stack Series
In the last blog post, we have explored Logstash, a tool for collecting and transform log data from many different input sources. Today, we will explore Elasticsearch, a scheme-less noSQL database with a versatile ("elastic") search engine. We will perform…
Logstash „Hello World“ Example – Part 1 of the ELK Stack Series
Today, we will first introduce Logstash, an open source project created by Elastic, before we perform a little Logstash "Hello World": we will show how to read data from command line or from file, transform the data and send it back to…
Java Build Automation Part 2: Create executable jar using Gradle
Original title: How to build a lean JAR File with Gradle In this step by step guide, we will show that Gradle is a good alternative to Maven for packaging java code into executable jar files. In order to keep the executable jar files…
AWS Automation Part 4: Using Terraform for AWS Automation
This is part 4 of a blog post series, in which we explore how to automate Amazon Web Services (AWS) using the Terraform open source software by HashiCorp. Similar to Cloudify, Terraform is a versatile way to codify any type of infrastructure and…
LXD vs Docker — or: getting started with LXD Containers
Container technology has existed long before the Docker hype around container technology has started after 2013. Now, with Docker containers having reached mainstream usage, you can easily get confused about available container types like Docker, LXC, LXD and CoreOS rocket. In this…
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…
Getting Started with OpenStack – DevStack Example – OpenStack Example
In this DevStack example, I will show how to install a DevStack-based demo OpenStack solution on an existing Ubuntu 14.04 server. DevStack is an open source project with the goal to offer a development, test or demo environment for working with…
Ansible Tower – a Hello World Example
This is part IV of a little "Hello World" example for Ansible, an IT automation (DevOps) tool. This time, we will get acquainted with Ansible Tower, a web front end for Ansible. The post has following content: Quickest way of "installing" an Ansible Tower…
CoreOS Cluster Discovery & Troubleshooting
This blog post explores CoreOS cluster discovery problems and how to troubleshoot them. This blog post is part 8 of my DDDocker (a dummy's docker diary) series. Since this post is one of my more popular blog posts on linkedIn, I have…
Running GUI apps with Docker for remote Access
In this blog post, we will explore how to start and access a Linux Docker image with a graphical desktop and access it remotely using VNC. In the course of the blog post, we will search for an appropriate Docker…
AWS Automation based on Vagrant — Part 3: Creating a Docker Host on AWS in 10 Minutes using Vagrant
Learn how Vagrant can be used to perform more sophisticated provisioning tasks than creation and termination of virtual machines. From our local Vagrant console, we will install Docker host Software and we will verify the results by downloading and testing the Python Docker image.
AWS Automation based on Vagrant — Part 1: Getting started with AWS
In this blog post series we will explore, how to automate Amazon Web Services (AWS) by using Vagrant. The series is divided into three parts. Readers that are interested in the automation part only can skip part 1 (the AWS…
AWS Automation based on Vagrant — Part 2: Installation and Usage of the Vagrant AWS Plugin
Learn how to get started with Amazon Web Services EC2 and how to automate simple task like creation and termination of virtual machine instances using Vagrant. This is a first step towards more sophisticated automation tasks like SW installation and shell script execution.
