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Our latest publications at Flant Blog

January 13 Migrating a PostgreSQL cluster managed by Patroni
Recently, I was lucky enough to migrate a PostgreSQL cluster managed by Patroni to new hardware. At first blush, the task seemed easy – I didn’t expect to encounter any problems. That said, I did encounter some unforeseen issues while migration was underway, which subsequently prompted me to share the lessons I learned. This article […]
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December 23, 2021 Collecting system information from a bunch of Kubernetes clusters
Throughout our experience in maintaining a large fleet of Kubernetes clusters (over 150), we have always dreamed of having a handy tool for viewing what their overall state is and keeping them homogeneous. We were primarily interested in the following readings: The Kubernetes version — to ensure that all the clusters are “on the edge”; […]
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December 22, 2021 Deckhouse Kubernetes Platform v1.28.0 is released
The new stable Deckhouse version brings some awesome improvements and updates, such as upgrades of K8s system components, the ability to change CRIs in clusters with a single master node, and about a dozen other changes. Let’s take a closer look at some of them. Significant changes in v1.28.0 Kubernetes upgrades. This release introduces new […]
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December 8, 2021 Deckhouse Kubernetes Platform v1.27.0 is released
The new stable release of the Deckhouse platform brings over 30 changes and improvements. A detailed list of Deckhouse v1.27.0 changes is available in the changelog; this post summarises the most useful and notable ones. Significant changes The new cert-manager version. The cert-manager module now runs cert-manager v1.5.4; the old version (v0.10.0) is also still […]
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December 7, 2021 werf v1.2 is now stable! Here’s what it is all about
werf is a CLI Open Source tool for building applications and deploying them to Kubernetes clusters. Version 1.2 features many new changes and improvements. We have been thoroughly testing and refining them as part of the Early-Access version over the last eleven months (since January 2021). Finally, we are pleased to announce that it has […]
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November 26, 2021 Running fault-tolerant Keycloak with Infinispan in Kubernetes
This article provides a summary of our experience deploying Keycloak, the popular single sign-on (SSO) solution, together with Infinispan, the in-memory data store for caching user metadata, to a Kubernetes cluster and ensuring stability and scalability in such a setup. The scope of Keycloak Keycloak (KC) is an Open Source software developed by Red Hat. […]
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November 19, 2021 Running MongoDB in Kubernetes: An overview of existing solutions
MongoDB is one of the most popular NoSQL/document-oriented databases in the world of web development. For that reason, many of our clients use it in their applications (including production-grade apps). Many of those applications are running on Kubernetes. In this article, we would like to share our experience in running MongoDB on K8s. What options […]
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November 17, 2021 Deckhouse Kubernetes Platform v1.26.0 is released
The new stable release of Deckhouse, the Kubernetes platform by Flant, — v1.26.0 — includes almost 60 changes, fixes, and improvements. This is the second major update to the Deckhouse platform since its public release in July. Notable changes and new modules The update mechanism configuration. You can now specify a convenient time period when […]
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October 29, 2021 The v1.0 release of addon-operator for Kubernetes brings stable Go hooks and more
We are happy to announce addon-operator v1.0 – the long-awaited major release of our Open Source tool for creating and dealing with add-ons in Kubernetes! addon-operator manages K8s modules based on Helm and capabilities provided by our another tool, shell-operator. The latter is designed to create Kubernetes operators quickly and effortlessly. Please, refer to the […]
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