I built CentOS and Ubuntu base boxes mainly as a starting point for people working through Efficient Rails DevOps, but they work equally well for any task that involves a virtual machine — the Alpine base box is especially useful for compiling statically linked Crystal projects and in environments where resources are scarce.
The database servers are optimized for a small footprint and come preconfigured to be accessed as
root database user (with
root also being the password). Perfect when you need a database backend for development but do not want an idling RDBMS to eat up all your resources when you are just browsing the web.
All boxes are intended for local development only but I try to keep them up-to-date with security patches nonetheless.
Use them however you like.
A minimal CentOS 7 installation.
A minimal CentOS 6 installation.
A minimal Alpine 3 installation.