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00 - Hybrid Cloud Infrastructure Cloud cloud computing

History of Cloud

Lately I have been giving a keynote at the Vogel-IT yearly Cloud Computing eXchange conference CCX on the history of clouds and the lessons we learned in looking at that history. The conference was held virtually this year on the Star Wars day, May 4th, 2022: https://www.ccxconference.de/ As the conference language was German, I want […]

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Cloud Containers OpenShift Technology

OPENSHIFT NETWORKING FROM A CONTAINER/WORKLOAD POINT OF VIEW – PART 4: CONTAINER NETWORKING USING OPENSHIFT/KUBERNETES SERVICES

To allow stable endpoints in an environment of ever changing starting and stopping Pods (and therefore constantly changing IP addresses), Kubernetes introduces (and OpenShift uses) the concept of services. Services are stable IP addresses (taken per default from the 172.30.0.0/16 subnet) that remain the same as long as the service exists. Connection requests to a […]

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Cloud Containers OpenShift Technology Uncategorized

OPENSHIFT NETWORKING FROM A CONTAINER/WORKLOAD POINT OF VIEW – PART 3: CONTAINER NETWORKING ACROSS OPENSHIFT NODES

So far, this sounds like a lot of effort to achieve a little more than a plain docker host – containers that can talk to each other and to the host network, potentially segregated based on kubernetes namespace. However OpenShift SDN also allows pods on different nodes to communicate with each other. To this end, […]

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Cloud container Containers JBoss Fuse Kubernetes open source OpenShift PaaS Uncategorized

First Fuse application on OpenShift V3.1

Since mid of December 2015, Red Hat has released the initial version of the Fuse Integration Services. These are various pre-build images which are aimed to make the implementation of Red Hat JBoss Fuse applications on OpenShift V3 as seamless as possible. In this blog I will document the steps required to create a first […]

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