If you find yourself having issues building Kolla docker container images with errors like this: INFO:kolla.common.utils:Using engine: docker INFO:kolla.common.utils:Found the container image folder at /home/mikal/src/kerbside-patches/venv-stable/2023.1-patches/share/kolla/docker ERROR:kolla.common.utils:Unable to connect to container engine daemon, exiting INFO:kolla.common.utils:Exception caught: Error while fetching server API version: Not supported URL scheme http+docker It is likely that you’re running a recent version…
Category: OpenStack
Validating a keystone token
Once again I venture into the lands of poorly documented keystoneauth1 calls. This time, I want to be able to validate if a stored keystone authentication token is valid. Here’s the best I could come up with, I’d be interested in others have something better. For this to work, we need a service account to…
Using the openstacksdk with authentication arguments
I wanted to authenticate against OpenStack recently, and had a lot of trouble finding documentation about how to authenticate just by passing arguments (as opposed to by using clouds.yaml or environment variables). Now that I have a working incantation, I figure I should write it down so I can find it again. Its also disappointing…
Turnover of Companies in OpenStack: Prevalence and Rationale
This paper examines the withdrawal behaviour of corporate contributors to OpenStack, which seems particularly relevant given most contributions in OpenStack are corporately supported, and corporate engagement is declining over time. Its also directly relevant to my own experiences contributing to the project, so seemed like a thing I should read. One interesting aspect of the…
Deciding when to filter out large scale refactorings from code analysis
I want to be able to see the level of change between OpenStack releases. However, there are a relatively small number of changes with simply huge amounts of delta in them — they’re generally large refactors or the delete which happens when part of a repository is spun out into its own project. I therefore…
A quick summary of OpenStack release tags
I wanted a quick summary of OpenStack git release tags for a talk I am working on, and it turned out to be way more complicated than I expected. I ended up having to compile a table, and then turn that into a code snippet. In case its useful to anyone else, here it is:…
Rejected talk proposal: Shaken Fist, thought experiments in simpler IaaS clouds
This proposal was submitted for FOSDEM 2021. Given that acceptances were meant to be sent out on 25 December and its basically a week later I think we can assume that its been rejected. I’ve recently been writing up my rejected proposals, partially because I’ve put in the effort to write them and they might…
Introducing Shaken Fist
The first public commit to what would become OpenStack Nova was made ten years ago today — at Thu May 27 23:05:26 2010 PDT to be exact. So first off, happy tenth birthday to Nova! A lot has happened in that time — OpenStack has gone from being two separate Open Source projects to a…
Exporting volumes from Cinder and re-creating COW layers
Today I wandered into a bit of a rat hole discovering how to export data from OpenStack Cinder volumes when you don’t have admin permissions, and I thought it was worth documenting here so I remember it for next time. Let’s assume that you have a Cinder volume named “child1”, which is a 64gb volume…
What’s missing from the ONAP community — an open design process
I’ve been thinking a fair bit about ONAP and its future releases recently. This is in the context of trying to implement a system for a client which is based on ONAP. Its really hard though, because its hard to determine how various components of ONAP are intended to work, or interoperate. It took me a…