May 19 Overview of Harvester, a hyperconverged Open Source solution powered by Kubernetes

SUSE is widely recognized by the Open Source community — at least, for its Linux distributions. But of course, it creates a lot more than just that. It was late last year when SUSE introduced a new Open Source project called Harvester. The company marketed it as an alternative to existing enterprise-level hyperconverged platforms like […]

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May 13 Recent troubleshooting cases from our SREs, part 4

The next set of troubleshooting cases from our SREs includes renewing Let’s Encrypt root certificates for legacy CentOS, handling an error in DNS records with Ingress, dealing with a tricky sharding problem in Elasticsearch, and more. Caution! None of the solutions provided below should be considered universal. Apply them with caution. The outcome depends on […]

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May 5 Running werf in GitLab CI/CD without a Docker server

werf is an Open Source tool for building applications and deploying them to Kubernetes. This article discusses the new experimental werf operating mode that does not require a Docker server to be run. You will learn how to ensure this mode works properly on your machine, build an image, and use the Kubernetes executor to […]

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April 27 Overview of self-hosted serverless frameworks for Kubernetes: OpenFaaS, Knative, OpenWhisk, Fission

This article briefly discusses the topic of serverless computing (what it is and why it’s necessary), delves into the available Open Source self-hosted frameworks that support Kubernetes, and explores their features and limitations. Subsequently, read on to learn about the real-life serverless experience (OpenFaaS) of one of our customers (It was while I was researching […]

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April 8 Local development in Kubernetes with werf 1.2 and minikube

This article discusses preparing and deploying a Kubernetes-based infrastructure for local development using a basic application as an example. Local development means you can change your app’s source code and instantly see how it works in K8s running on your computer. What brought about this need? We are often challenged to find a balance between […]

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April 1 Dhall configuration language as another way to write manifests for Kubernetes

Dhall is a programming language used for generating configuration files for various purposes. This Open Source project made its first release in 2018. Like any new language for generating configuration files, Dhall seeks to address the limited functionality of YAML, JSON, TOML, XML, and other configuration formats while keeping things simple at the same time. […]

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March 25 How to migrate to Kubernetes and pay twice less? The case of Adapty

We recently helped one of our clients — Adapty Tech Inc. — migrate its infrastructure from AWS managed services. It is now hosted in a Kubernetes cluster running on regular instances of another cloud provider and can easily be migrated to another data center if needed. This business case is quite telling: Adapty managed to […]

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March 22 Deckhouse Kubernetes Platform v1.30 stable is released

Keep on reading to learn more about some awesome improvements and features in the new Deckhouse version — v1.30.16, including support for Kubernetes v1.22, Debian GNU/Linux 9-11, the namespace-configurator module, and the Early OOM killer component in the node-manager module. Significant Changes Kubernetes v1.22 support has been added. Older versions of Kubernetes prior to v1.19 […]

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March 18 Kubernetes and containerization trends (according to the reports of 2021)

In October’21, Datadog unveiled its updated report — “10 Real-World Container Usage Trends“. The authors examined over 1.5 billion containers run by tens of thousands of Datadog clients. We compared the results with the other relevant studies of the last year to complement Datadog statistics and see whether their results reflect the general market trend […]

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March 15 Kui — a “hybrid” CLI/GUI application for working with Kubernetes

It’s no secret that when it comes to things like managing a server or a Kubernetes cluster most of us prefer to use our beloved terminal rather than a GUI tool. For many people, it’s like driving a car with a manual gearbox: simple, comfortable, flexible, and more predictable. Kui is a hybrid interface tool […]

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