It’s been a busy few weeks of blogging! Thanks as always to those of you who continue to write great content.
OpenStack Role Assignment Inheritance for CloudForms by Adam Young
Operators expect to use CloudForms to perform administrative tasks. For this reason, the documentation for OpenStack states that the Keystone user must have an ‘admin’ role. We found at least one case, however, where this was not sufficient. Fortunately, we have a better approach, and one that can lead to success in a wider array of deployments.
Listening for connections on all ports/any port by Lars Kellogg-Stedman
On IRC — and other online communities — it is common to use a “pastebin” service to share snippets of code, logs, and other material, rather than pasting them directly into a conversation. These services will typically return a URL that you can share with others so that they can see the content in their browser.
Grouping aggregation queries in Gnocchi 4.0.x by Lars Kellogg-Stedman
In this article, we’re going to ask Gnocchi (the OpenStack telemetry storage service) how much memory was used, on average, over the course of each day by each project in an OpenStack environment.
TripleO deep dive session #12 (config-download) by Carlos Camacho
This is the 12th release of the TripleO “Deep Dive” sessions. In this session we will have an update for the TripleO ansible integration called config-download. It’s about applying all the software configuration with Ansible instead of doing it with the Heat agents.
Maximizing resource utilization with Preemptible Instances by Theodoros Tsioutsias
The CERN cloud consists of around 8,500 hypervisors providing over 36,000 virtual machines. These provide the compute resources for both the laboratory’s physics program but also for the organisation’s administrative operations such as paying bills and reserving rooms at the hostel.
Testing TripleO on own OpenStack deployment by mrunge
For some use cases, it’s quite useful to test TripleO deployments on a OpenStack powered cloud, rather than using a baremetal system. The following article will show you how to do it.
Read more at http://www.matthias-runge.de/2018/02/16/tripleo-ovb/
A New Thing by Andrew Beekhof
If you’re interested in Kubernetes and/or managing replicated applications, such as Galera, then you might also be interested in an operator that allows this class of applications to be managed natively by Kubernetes.
Two Nodes – The Devil is in the Details by Andrew Beekhof
tl;dr – Many people love 2-node clusters because they seem conceptually simpler and 33% cheaper, but while it’s possible to construct good ones, most will have subtle failure modes.