Mapping from iSCSI session to device.

I was monitoring my system, so I knew the file was /dev/sdb was the new iSCSI target I was trying to turn into a file system. TO provide it, I ran:

iscsiadm -m session --print=3

And saw:

		scsi4 Channel 00 Id 0 Lun: 0
		scsi4 Channel 00 Id 0 Lun: 1
			Attached scsi disk sdb		State: running

But what did that do? Using Strace helped me sort it a little. I worked backwards.

Continue reading

Barely Functional Keystone Deployment with Docker

My eventual goal is to deploy Keystone using Kubernetes. However, I want to understand things from the lowest level on up. Since Kubernetes will be driving Docker for my deployment, I wanted to get things working for a single node Docker deployment before I move on to Kubernetes. As such, you’ll notice I took a few short cuts. Mostly, these involve configuration changes. Since I will need to use Kubernetes for deployment and configuration, I’ll postpone doing it right until I get to that layer. With that caveat, let’s begin.
Continue reading

Running GUI Applications in a container with SELinux

As I work more and more with containers, I find myself wanting to make more use of them to segregate running third party apps. Taking the lead of Jessie Frazelle I figured I would try to run the Minecraft client in a Container on Fedora 25. As expected, it was a learning experience, but I got it. Here’s the summary:
Continue reading

Running SAS University Edition on Fedora 25

My Wife is a statistician. Over the course of her career, she’s done a lot of work coding in SAS, and, due to the expense of licensing, I’ve never been able to run that code myself. So, when I heard about SAS having a free version, I figured I would download it and have a look, maybe see if I could run something.

Like many companies, SAS went the route of shipping a virtual appliance. They chose to use Virtual Box as the virtualization platform. However, when I tried to install and run the VM in virtual box, I found that the mechanism used to build the Virtual Box specific module for the Linux Kernel, the build assumption were not met, and the VM would not run.

Instead of trying to fix that situation, I investigated the possibility of running the virtual appliance via libvirt on my Fedora systems already installed and configured kvm setup. Turns out it was pretty simple.
Continue reading

JSON Home Tests and Keystone API changes

If you change the public signature of an API, or add a new API in Keystone, there is a good chance the Tests that confirm JSON home layout will break.  And that test is fairly unfriendly:  It compares a JSON doc with another JSON doc, and spews out the entirety of both JSON docs, without telling you which section breaks.  Here is how I deal with it:

Continue reading