The sample code for this post can be found on GitHub.

While we can always install PostgreSQL on our host machine, it’s a much cleaner solution to create something like a local virtual machine with Vagrant or a container using Docker. That way, any changes we make to the database and then forget about are not around as soon as we destroy either the container or the virtual machine. It is one more way to tighten that feedback loop we need as developers.

In my post about how to provision any version of Java using a bash script, we saw that:

Elasticsearch, Logstash, and Kibana, commonly referred to as ELK or the Elastic Stack, is a set of tools that can, well do a lot of things. It is most famous for its logging and analytics capabilities.

While we would all like to be up to date, sometimes legacy systems handcuff us into using an older version of software. Java is no exception, and in some cases we have to resort to using, say, Java 8, instead of the latest version with all of the security updates that we need.

In our last post on simulating a cloud environment on your local machine, we saw that we could use virtual box to create a virtual machine that could both talk to your local computer, with its own IP address, and to the internet.