0 comments on “Java Build Automation Part 1: Create lean executable jar using Maven”

Java Build Automation Part 1: Create lean executable jar using Maven

Have you ever tried to create an executable jar file, while keeping all configuration files outside of the jar file, accessible to operations folks? Here is a step by step guide. JAR files are java archive files and as such, are not…

3 comments on “Docker Performance Tests for Ruby on Rails”

Docker Performance Tests for Ruby on Rails

In a series of performance tests, we could show that a (Rails) web application has 50% higher performance on docker (installed on Windows/boot2docker) than the same application run natively on Windows, no matter whether or not the database and program code is located on a shared volume. However, if such a shared volume is auto-mounted to one of the Windows C:\Users folders, the performance drops by a factor of almost ten.

1 comment on “Docker CoreOS Cluster Failover Test in less than 15 Minutes”

Docker CoreOS Cluster Failover Test in less than 15 Minutes

In this post, I will explore services failover scenarios for docker containers on CoreOS clusters using fleet. A container-based service will be defined and started, and we will explore the service recovery after a failure of one or all cluster nodes (e.g.…