Unter Infrastructure verstehen wir die Kombination der beiden Disziplinen, die für den flexiblen und zuverlässigen Betrieb von Systemen in Rechenzentren benötigt werden: einerseits das Design, die Installation und Konfiguration der Server-Infrastrukturen, andererseits die tägliche Betreuung dieser Systeme. Unser Fokus liegt auf Hochverfügbarkeit und -skalierbarkeit, Migrationen, Cloud und Open Source Data Center Management. Dabei verwenden wir innovative Technologien, mit Akzent auf Open Source. Durch die Verzahnung mit den Entwicklungsteams können wir die Infrastrukturen sehr präzise auf die entwickelte Software abstimmen (DevOps).

Kubernetes Storage: Ephemeral Inline Volumes, Volume Cloning, Snapshots and more!

2020-06-29T10:38:56+00:00

This article gives an overview over emerging Kubernetes storage features such as Container Storage Interface (CSI), which allows external storage vendors to maintain their own storage drivers independently of the Kubernetes source tree and releases.

With Kubernetes 1.13, the Container Storage Interface (CSI) joined its Network (CNI) and Runtime (CRI) cousins in the effort to make Kubernetes Storage more easily ex

Kubernetes Storage: Ephemeral Inline Volumes, Volume Cloning, Snapshots and more!2020-06-29T10:38:56+00:00

Kubernetes Networking Teil 1: Networking Essentials

2020-06-19T12:32:45+00:00

Im ersten Teil dieser Serie befassen wir uns mit den Grundlagen des Container Networkings am Beispiel Docker und nutzen diese zum Verständnis der internen Mechanismen von Kubernetes sowie der Funktionsweise eines Podnetzwerks. Dann gehen wir der Frage nach, wofür wir ein Kubernetes Netzwerk Plug-In überhaupt benötigen.

Anwendungskomponenten, die mittels Kubernetes als Pods ausgeführt werden, können über mehrere Knoten eines Clusters verteilt sein. Die knotenübergreifende Netzwerkkom

Kubernetes Networking Teil 1: Networking Essentials2020-06-19T12:32:45+00:00

Using HashiCorp Vault with Terraform

2020-06-02T16:56:40+00:00

In this post we will show you how we manage our HashiCorp Vault in a complex environment with many secrets, policies and Private Key Infrastructures (PKIs) using Terraform. Come join us on the journey from barely maintainable bash scripts to terraform and learn from our experience.

In this post we will show you how we manage our HashiCorp Vault in a complex environment with many secrets, policies and Private Key Infrastructures (PKIs) using Terr

Using HashiCorp Vault with Terraform2020-06-02T16:56:40+00:00

Hype Meets Harsh Reality: Microservices in the Wild Part 3

2020-05-18T17:25:54+00:00

Everyone wants to leave monoliths behind for new and shiny microservices these days. We have a look at the implications this had for our real-world project and why you would (not) want to go down that road. Part 3 summarizes and thinks about pros and cons.

This is the third and final part of our article series on what a real life migration from a monolithic application to a multi- or microservices system can look like.

Hype Meets Harsh Reality: Microservices in the Wild Part 32020-05-18T17:25:54+00:00

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

Remote-First aus Infrastrukturperspektive: Eure Fragen beantwortet

2020-05-11T17:33:34+00:00

Beim Web Talk zu unserer Infrastruktur, die uns erlaubte, spontan auf 100% Remote-Arbeit umzustellen, blieben einige Fragen offen, die auch unser vorangegangener Blogartikel nicht beantwortet hatte. Auf diese gehen wir an dieser Stelle ein.

Beim Web Talk zu unserer Infrastruktur, die uns erlaubte, spontan auf 100% Remote-Arbeit umzustellen, blieben einige Fragen offen, die auch unser vorangegangener Blog

Remote-First aus Infrastrukturperspektive: Eure Fragen beantwortet2020-05-11T17:33:34+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

Welcome To The Container Jungle: Docker vs. containerd vs. Nabla vs. Kata vs. Firecracker and more!

2020-04-27T19:10:37+00:00

Which Container runtime do you use? Classics like Docker and containerd, or have you tried VM-based projects like Nabla, Kata or Firecracker? In this blog post, we compare more than ten container runtimes and classify them based on standards like OCI, Kubernetes’ CRI and CNI.

Welcome to the Jungle! Not a day goes by without the introduction of a new tool or framework that you should use in your container and orchestration setup. Well, you’

Welcome To The Container Jungle: Docker vs. containerd vs. Nabla vs. Kata vs. Firecracker and more!2020-04-27T19:10:37+00:00

Hype Meets Harsh Reality: Microservices in the Wild Part 2

2020-04-03T14:25:53+00:00

Everyone wants to leave monoliths behind for new and shiny microservices these days. We have a look at the implications this had for our real-world project and why you would (not) want to go down that road. Part 2 lists the changes that actually happened.

This is the second part of a three-part series. We cover a real-life m

Hype Meets Harsh Reality: Microservices in the Wild Part 22020-04-03T14:25:53+00:00

Software Defined Networks: Are AI Algorithms Replacing Shortest Path?

2020-03-30T08:00:12+00:00

For my master’s thesis I evaluated whether AI and metaheuristic routing algorithms implemented in Software Defined Networks can improve the overall performance of computer networks. Curious whether OSPF and BGP are getting shelved soon? Find out here!

For my master’s thesis I evaluated whether AI and metaheuristic routing algorithms implemented in Software Defined Networks can improve the overall performance of com

Software Defined Networks: Are AI Algorithms Replacing Shortest Path?2020-03-30T08:00:12+00:00

Remote First aus Infrastruktur-Perspektive

2020-03-20T11:27:35+00:00

Die Corona-Pandemie stellt viele Unternehmen vor völlig neue organisatorische, technologische und kulturelle Herausforderungen. In diesem Artikel geben wir einen Einblick, wie wir für inovex eine Infrastruktur geschaffen haben, mit der wir im Geschäftsbetrieb von nahezu überall arbeitsfähig sind.

Die Corona-Pandemie stellt viele Unternehmen vor völlig neue organisatorische, technologische und kulturelle Herausforderungen. In diesem Artikel geben wir einen Einb

Remote First aus Infrastruktur-Perspektive2020-03-20T11:27:35+00:00

Planning High Throughput Elasticsearch Clusters: Part 1

2020-03-09T17:31:10+00:00

Building an Elasticsearch cluster can be as easy as assembling an Ikea Billy bookshelf and sizing as complex as engineering a 24 hours of Le Mans race car. In this article series we will put a spotlight on what has to be taken into account when molding clusters.

Building an Elasticsearch cluster for log ingestion can be as easy as assembling an Ikea Billy bookshelf and sizing as complex as engineering a 24 hours of Le Mans ra

Planning High Throughput Elasticsearch Clusters: Part 12020-03-09T17:31:10+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

Kubernetes on Windows (2): Tools

2019-09-25T15:13:19+00:00

Kubernetes offers many tools and add-ons that bring a lot of functionality to the table. But do they work with the new Kubernetes on Windows?

Kubernetes is a powerful system on its own. But what really elevates its usefulness to new heights are the many add-ons and tools. They add functionality like monitor

Kubernetes on Windows (2): Tools2019-09-25T15:13:19+00:00

Kubernetes on Windows (1): General Overview

2019-09-25T15:13:25+00:00

Kubernetes is getting more and more popular. But how does the container orchestration software fare on Windows? This post will give you a general overview.

With Kubernetes gaining more and more popularity it was only a matter of time until Microsoft brought it to their platform. This March Kubernetes announced production

Kubernetes on Windows (1): General Overview2019-09-25T15:13:25+00:00
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