A week ago, the press has announced a new Cloud Service: Hetzner Cloud is based in Germany but they offer Infrastructure as a Service (IaaS) in the US as well. You can rent computing resources at "unbeatable prices" as they…
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…
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…
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…
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…
Choosing the right IaaS Provider for a custom Appliance or: how hard is it to install from ISO in the cloud?
Which Cloud Infrastructure provider allows to install custom appliances via ISO? The short answer is: none of the IaaS market leaders Amazon Web Serviese (AWS), Microsoft Azure offer the requested functionality, but they offer the workaround to locally install the…
Ansible Hello World – Ansible vs. Salt vs. Chef vs. Puppet
This is part 1 of a little Ansible Hello World example, an IT automation tool. The post has the following content: Comparison of the popularity of Ansible, Salt, Chef, and Puppet Installation of Ansible based on Docker Simple Example Playbooks (i.e.…
