A Blog of the ZHAW Zurich University of Applied Sciences
Rancher is a container management platform focused on delivering containers on any infrastructure. It has support for multiple environments which could make use of one of the multiple container orchestrators available (at the time of this writing) – Cattle, Kubernetes, Swarm and Mesos. In our previous blog post we showed how we built rancher-agent containers […]
In our previous blog post we explained how networking works in Rancher in a Cattle environment. There we also mentioned that we have been working on enabling Rancher to operate on heterogeneous compute infrastructures – for example, a mixed environment comprised of ARM based edge devices connected to VMs running in the cloud. In this […]
Following our previous blog post, we are still looking at tools for collecting metrics from an Openstack deployment in order to understand its resource utilization. Although Monasca has a comprehensive set of metrics and alarm definitions, the complex installation process combined with a lack of documentation makes it a frustrating experience to get it up […]
In one of our projects we are making contributions to an Openstack project called Watcher, this project focuses on optimizing resource utilization of a cloud according to a given strategy. As part of this work it is important to understand the resource utilization of the cloud beforehand in order to make a meaningful contribution. This […]
The third day of the summit had a different feel from the previous couple of days – there was no keynote and there were noticeably less people around: there is a strong sense that the show is over and now it’s necessary to do some real work. Hence, there is more time and space allocated […]
In one of our blog posts we presented a basic tool which extends the Openstack Nova client and supports executing API calls at some point in the future. Much has evolved since then: the tool is not just a wrapper around Openstack clients anymore and instead we rebuilt it in the context of the Openstack […]
In one of our projects, we needed to test some mongo based backend functionality: we wrote a small application which comprised of a mongo backend and a python app which communicated with the backend via pymongo. We like the flexibility of mongo in a rapid prototyping context and did not want to go with a […]
[This post was originally published on the GEYSER blog by our own Seàn Murphy. ICCLab is a partner in GEYSER and is responsible for developing workload migration mechanisms and other activities.] GEYSER focuses on making Data Centres more energy efficient in the context of varying availability of energy. One of the tools used in this […]
In FIWARELab, we recently upgraded from Openstack Icehouse to a Kilo High Availability (HA) deployment. Our approach involved having two simultaneous active Openstack deployments so VMs and volumes could be migrated from one deployment to another with a minimal downtime. More specifically, VMs and volumes were snapshotted and transferred to the Kilo deployment as images […]
In one of our projects, FICORE the continuation of FIWARE, we need to offer an Openstack-based service. One aspect of service operations is to understand the performance of the system and one particular aspect of this is to understand how long basic operations take; it is interesting to see how this evolves over time as, […]