A Blog of the ZHAW Zurich University of Applied Sciences
This category is a collection of technical and scientific HowTos which describe how to do something, e.g. setup a Vagrant installation etc.
Have you created a highly popular and frequently used JavaScript (Node.js) functions for execution in Google Cloud Functions? In this case, the economics of FaaS turn against you due to the per-invocation pricing. You might want to have more options for both testing the same function locally and for deploying it into an environment with […]
In the context of the ECRP Project, which is part of our cloud robotics initiative, we are aiming to build a PaaS solution for robotic applications. The “Robot Operating System” (ROS) is widely used on several robotics platforms, and also runs on the turtlebot robots in our lab. One of the ideas behind cloud robotics […]
Following the series that we started with the Vamp Blog post, we proceed to take a look of one more of the container management tools which includes running a simple practical example while we pay attention to the main advantages and limitations. This series happens in the context of the work on cloud-native applications in […]
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 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 […]
In the Service Engineering research area, we aim at producing high-quality output in terms of software, publications, lecture materials and other results. From time to time, this implies departing from old habits and taking a bit of extra effort to reach new quality levels. For publications, there are excellent tools like LaTeX to achieve a […]
[This post originally appeared on the XiFi blog – ICCLab@ZHAW is a partner in XiFi and is responsible for operating the Zurich node.] As with any open compute systems, security is a serious issue which cannot be taken lightly. XiFi takes security seriously and has regular reviews of security issues which arise during node operations. […]
[Note: This blog post was originally published on the XiFi blog here.] One of the main jobs performed by the Infrastructures in XiFi is to manage quotas: the resources available are not infinite and consequently resource management is necessary. In Openstack this is done through quotas. Here we discuss how we work with them in Openstack. Schlagwörter: […]
Introduction I have introduced Disaster Recovery (DR) services in the tutorial of last ICCLAB newsletter which also made an overview of possible OpenStack configurations. Several configuration options could be considered. In particular, in case of a stakeholder having both the role of Cloud provider and DR service provider, a suitable safe configuration consists in distributing […]