Showing posts from September, 2018

Kubernetes now available on Nectar!

We’ve just deploy OpenStack Magnum (Container Infrastructure as a Service) on Nectar cloud. This allows a user to spin up a container cluster (kubernetes or docker swarm) on Nectar. We are in the process of coming out with official documentation, but in the meantime if you would like to test drive it, here are the steps to do so. First of all, you need the following Quotas for Floating IP Network Subnet If you have requested for floating IPs for your project, you will be fine. If not,  request for floating ip quota . Creating a Cluster You can create a cluster using either the Dashboard or CLI tools. Using Dashboard Log on to the  dashboard Navigate to  Container Infra . Click on  Clusters , then  Create Cluster . Give your cluster a name. Choose a cluster template. We have pre-defined global templates (in format  kubernetes-{az} ) to help you get started easier. Choose the template that you want your cluster to be in. Go to the  Misc  tab, and se

Getting capacity and usage information out of Openstack Placement

One of the problems we have in Nectar is reporting on capacity and usage of nova. We have ~1000 compute nodes and these come and go. The Openstack Placement service seems like a good place to extract capacity and usage information from nova so I thought I'd see what it could do. First problem is there is no placement client. I found the osc-placment project but this isn't that useful as it is just an openstack client plugin and not a python library like the other clients. I've written a custom client before for an internal project so I created a very simple client that can get resource provider usage and capacity. In placement a resource provider maps directly to a compute node in nova. Now we have the means to query this information I wrote a custom Ceilometer poller to collect this information periodically. Once this was collecting data I needed to configure Ceilometer and Gnocchi to ingest the notifications that my new poller was generating. In Ceilometer I ne