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…
Tag: nova
Things I read today: the best description I’ve seen of metadata routing in neutron
I happened upon a thread about OVN’s proposal for how to handle nova metadata traffic, which linked to this very good Suse blog post about how metadata traffic is routed in neutron. I’m just adding the link here because I think it will be useful to others. The OVN proposal is also an interesting read.
Nova vendordata deployment, an excessively detailed guide
Nova presents configuration information to instances it starts via a mechanism called metadata. This metadata is made available via either a configdrive, or the metadata service. These mechanisms are widely used via helpers such as cloud-init to specify things like the root password the instance should use. There are three separate groups of people who…
How we got to test_init_instance_retries_reboot_pending_soft_became_hard
I’ve been asked some questions about a recent change to nova that I am responsible for, and I thought it would be easier to address those in this format than trying to explain what’s happening in IRC. That way whenever someone compliments me on possibly the longest unit test name ever written, I can point…
Kilo Nova deploy recommendations
What would a Nova developer tell a deployer to think about before their first OpenStack install? This was the question I wanted to answer for my linux.conf.au OpenStack miniconf talk, and writing this essay seemed like a reasonable way to take the bullet point list of ideas we generated and turn it into something that…
How are we going with Nova Kilo specs after our review day?
Time for another summary I think, because announcing the review day seems to have caused a rush of new specs to be filed (which wasn’t really my intention, but hey). We did approve a fair few specs on the review day, so I think overall it was a success. Here’s an updated summary of the…
Soft deleting instances and the reclaim_instance_interval in Nova
I got asked the other day how the reclaim_instance_interval in Nova works, so I thought I’d write it up here in case its useful to other people. First off, there is a periodic task run the nova-compute process (or the computer manager as a developer would know it), which runs every reclaim_instance_interval seconds. It looks…
Specs for Kilo, an update
We’re now a few weeks away from the kilo-1 milestone, so I thought it was time to update my summary of the Nova specifications that have been proposed so far. So here we go… API Add more detailed network information to the metadata server: review 85673. Add separated policy rule for each v2.1 api: review…
Specs for Kilo
Here’s an updated list of the specs currently proposed for Kilo. I wanted to produce this before I start travelling for the summit in the next couple of days because I think many of these will be required reading for the Nova track at the summit. API Add instance administrative lock status to the instance…
One week of Nova Kilo specifications
Its been one week of specifications for Nova in Kilo. What are we seeing proposed so far? Here’s a summary… API Add instance administrative lock status to the instance detail results: review 127139. Add more detailed network information to the metadata server: review 85673. Add separated policy rule for each v2.1 api: review 127863. Add…