I have been reading about Flocker↗ for quite a while and it’s been something I have been meaning to look at since the introduction of plugins back in the Docker 1.7 release↗ . But I have been busy looking at other parts of Docker. Since I had a few hours this weekend I thought it was about time and had a play. ClusterHQ describes Flocker as; Flocker is an open-source container data volume manager for your Dockerized application. It gives ops teams the tools they need to run containerized stateful services like databases in production. ...

This week I had to do a few installations of Puppet Enterprise on an EC2 instance. Although this seemed like a simple enough task, I did hit upon one annoying issue. I was doing a Monolithic installation as it was just for testing, I had done this several times on Digital Ocean↗ and locally using a Vagrant box↗ with no issue at all. Reading through the documenation I had to open the following ...

Since the last post about the blog I have been playing with the blog a bit more, I have finally got a decent PageSpeed Insights Score↗ ; It’s annoying that the Disqus javascript is keeping me from getting 100/100 but considering before I started to tweak things I was getting a score of 85/100 so I can’t complain too much. I have also adding the following functionality to my Gruntfile↗ ...

One of the reasons I haven’t been posting much on here for the last fews months is that I have been busy spending my weekends and evenings writing a book called “Monitoring Docker” which is being published by Packt Publishing↗ at the end of the year. It’s now available for pre-order from the Packt website↗ and also Amazon !!! Exciting times :D

Every six months or so I like to do clean installs of all of my Macs. I try and time this for late September which is normally when Apple releases its latest updates. This year its OS X 10.11 El Capitan; First thing to do is build a USB install disk so that , to do this I use DiskMaker X↗ . Once the drive has been created I boot from it, erase “Macintosh HD” and then do the installation. ...

A while I posted about a script I wrote to quickly bootstrap a Digital Ocean droplet. One one of the things I noticed while trying to install a few packages is that even though my script had run a yum update I was booting into the original Kernel and this was causing all sorts of hilarity when trying to build a Kernel module, because of this I added a few lines to my script to tell you if the kernel has been updated, and if so what the new version is; ...

I have a need to create both some Ubuntu and CentOS Vagrant boxes for a project I am working on. Normally I would have created them on my local machine, uploaded the artifacts to an Amazon S3 bucket and then published them using Atlas↗ (formally Vagrant Cloud↗ ). However in the past month HashiCorp↗ have updated Atlas so that you can now build Packer↗ templates directly within Atlas and publish the artifacts as Vagrant Boxes, all free of charge. This is great for me as it means that I will not incur the hosting and distribution costs. ...

In my previous post I wrote about launching a CentOS 7 Virtual Machine in Azure↗ using Terraform↗ . As you can see from my original configuration I was adding a password and my own user. This worked well, the machine launched and I could access it as expect and sudo to root. However, when it came to using Terraforms built-in provisioner I started to have problems as the commands I was running need root privileges, when I tried using sudo it would sit there waiting for the password to entered. ...