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Über Johannes M. Scheuermann

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Bisher hat Johannes M. Scheuermann, 11 Blog Beiträge geschrieben.

Testing Your Kubernetes Infrastructure

2020-05-12T10:11:44+00:00

Automated tests in software development are regarded as an integral quality measure. In our experience, the same cannot be said for infrastructure tests. We believe that there is too little information on how to use and extend existing tools to test Kubernetes clusters, so we'll share our experiences in this article.

Automated tests in software development are widely regarded as an integral quality measure. In our experience, the same cannot be said for testing infrastructure. We

Testing Your Kubernetes Infrastructure2020-05-12T10:11:44+00:00

Migrating etcd v2 to etcd v3 API

2020-04-20T09:26:40+00:00

When we upgraded from etcd v2 to etcd v3 we noticed that etcd returned different values when we queried it—and recently even more issues were opened which are all related to data inconsistency when authentication is enabled. This article explains how we solved this problem in our current project.

etcd [1] is a consistent, distributed key-value store which uses the raft consensus algorithm [2]. etcd is used by many projects but it is probably best known for bei

Migrating etcd v2 to etcd v3 API2020-04-20T09:26:40+00:00

Istio: Transparent Multicluster

2020-03-09T17:37:33+00:00

Like all service meshes Istio tries to move some common network functionality into the infrastructure layer. Istio also allows some more complex features like Multicluster and multi mesh. In this blog post we will take a deeper look how we can use Istio multicluster for transparent failovers.

Istio is one of the many service mesh implementations out there. There is a very nice overview of the different service mesh implementations by INNOQ. Like all servic

Istio: Transparent Multicluster2020-03-09T17:37:33+00:00

The Edge is Near: An Introduction to Edge Computing!

2019-06-04T13:51:40+00:00

Edge Computing has been a growing topic for the past few years. In this article we'll give you an overview over Edge Computing, discuss its advantages, explain a sample architecture as well as the classes of use cases it can be applied to.

Edge Computing has been a growing topic for the past few years. In this article we’ll give you an overview over Edge Computing, discuss its advantages, explain

The Edge is Near: An Introduction to Edge Computing!2019-06-04T13:51:40+00:00

Docker Plugins: How to write your own

2019-06-07T17:04:51+00:00

Docker Plugins are an easy way to extend the capabilities of the Docker Engine. We'll show the capabilities of plugins.

Docker Plugins are an easy way to extend the capabilities of the Docker Engine. You can load third-party plugins to extend e.g. the Networking, Storage and Authorizat

Docker Plugins: How to write your own2019-06-07T17:04:51+00:00

Apache Mesos: Build your own Framework

2019-04-02T17:34:14+00:00

In this final blog post of our 3 part series we will have a look at how you can build your own Apache Mesos framework.

In this final blog post of our 3 part series we will have a look at how you can build your own Apache Mesos framework. If you’re new to Mesos have a look at our

Apache Mesos: Build your own Framework2019-04-02T17:34:14+00:00

Apache Mesos: Marathon

2019-04-02T17:34:05+00:00

We want to show how to run tasks/applications on your Mesos cluster with Marathon, an init-system for Mesos built and maintained by Mesosphere. 

In the previous blog post we described the basics and components of Mesos. Now we want to show you how to run tasks/applications on your Mesos cluster with Marathon,

Apache Mesos: Marathon2019-04-02T17:34:05+00:00

Apache Mesos: An introduction

2019-04-02T17:33:56+00:00

Read on for the nitty gritty details in this first article in our Mesos mini series.

One of the biggest challenges in data centers is to maintain multiple clusters for different workloads. Say you want to run Hadoop, Kafka and Storm which means that y

Apache Mesos: An introduction2019-04-02T17:33:56+00:00

Docker: An introduction to easy containerization

2019-04-02T18:11:19+00:00

Docker is a lightweight container virtualization platform. Read on to find out about the advantages of this architecture.

Docker is a lightweight container virtualization platform, a container being an isolated Linux system which runs on an single Linux host. Docker helps the user to pac

Docker: An introduction to easy containerization2019-04-02T18:11:19+00:00

A Comparison of Minimalistic Docker Operating Systems [Update]

2018-06-25T15:32:05+00:00

In this article we compare the benefits of 5+ popular and promising minimalistic distributions best suited as a Docker Operating Systems.

With the Hype around containers and especially Docker many new Linux distributions were created to run containers. Compared to traditional operating systems, there ar

A Comparison of Minimalistic Docker Operating Systems [Update]2018-06-25T15:32:05+00:00