Using Openstack/Devstack Floating IPs from outside
- 27Jul2014

I hope that this is of use to someone. After many hours of tearing down, building up, programming routers, etc., I’ve figured out why my devstack wasn’t allowing access from floating ips. I knew that the address was resolving (arp -a); I just couldn’t ssh to it (or do anything else with it) It was […]

Cloudy Update
- 01Aug2013

I’ve been working with Docker a good bit and have updated my list of tools.  Here’s a quick dump of where I am in the design of the infrastructure. collectd will be used to monitor cgroup statistics.  This necessitates compiling all or part of collectd — the current packages do not contain the cgroup plugin. […]

On demand containers
- 23Jul2013

I’ve been interested in Linux Containers for quite a while; I think that they have their sweet spot where they are better than virtual instances — in particular they require less resources. I am working on a framework to use linux containers for on-demand computing — increasing or decreasing instances of applications as needed.  I […]

cygwin and torquebox and rvm, oh my!
- 22Jun2012

rvm, despite being wonderful, doesn’t play very well with torquebox under cygwin. In particular, the gem paths are not working. So, in order to fix this, simply do: rvm use system And then it will work right. Once you’re done with the torquebox work, you can go back to using rvm.

JBoss Client Jars for Messaging
- 04Nov2010

Prior to JBoss 5, the jboss-all-client.jar was pretty much all you needed. However, the JBoss 5 Getting Started Guide states the following: The client/jbossall-client.jar library that used to bundle the majority of jboss client libraries, is now referencing them instead through the Class-Path manifest entry. This allows swapping included libraries (e.g. jboss-javaee.jar) without having to […]

rsh hates nohup
- 04Aug2010

rsh has issues with nohup. Yes, I know rsh is evil. It wasn’t my decision.