VictoriaMetrics: fixing the “no matches for kind VMAnomaly” error
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10 July 2025

It’s not the first time I’ve encountered similar errors when upgrading VictoriaMetrics, so it’s time to note a solution. So, after upgrading the victoria-metrics-k8s-stack 0.55.0 => 0.56.0, errors appeared in the Operator logs: … {“logger”:”controller-runtime.source.EventHandler”,”msg”:”if kind is a CRD, it should be installed before calling Start”,”kind”:”VMAnomaly.operator.victoriametrics.com”,”error”:”no matches for kind \”VMAnomaly\” in version \”operator.victoriametrics.com/v1\””} … {“logger”:”setup”,”msg”:”cannot… Read More »

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Arch Linux: linux-firmware-nvidia: /usr/lib/firmware/nvidia/ exists in filesystem
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9 July 2025

Even though the changes were announced in emails from Arch Linux, for some reason, many people have had problems with the latest update: in the Arch Linux subreddits on Reddit, people are complaining like “Everything is broken, what should I do now?” Let’s see how to complete the upgrade and what exactly has changed. The… Read More »

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Kubernetes: 503 errors with AWS ALB possible causes and solutions
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9 July 2025

After migration to a new EKS cluster, we started getting alerts about 503 errors sometimes. The errors were happened in three cases: sometimes without any deployment, when all Pods were Running && Ready sometimes during deployment – but only on Dev, because there is only one Pod for API and sometimes during Karpenter Consolidation. Let’s… Read More »

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VictoriaMetrics: migrating VMSingle and VictoriaLogs data between Kubernetes cluster
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5 July 2025

We have VictoriaMetrics and VictoriaLogs running on an AWS Elastic Kubernetes Service cluster. We do major upgrades to EKS by creating a new cluster, and therefore we have to transfer monitoring data from the old VMSingle instance to the new one. For VictoriaMetrics, there is the vmctl tool which can migrate data through the APIs… Read More »

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Terraform: using import, and some hidden pitfalls
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15 June 2025

Terraform has two ways to bring existing resources under Terraform management – using the Terraform CLI and the terraform import command, or using the import resource. Why might we need to import resources? if we already have a manually configured (the “clickops”) service that we want to bring under Terraform management (for example, the common… Read More »

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AI: Introduction to Ollama for local LLM launch
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31 May 2025

I would really like to play with some LLMs locally, because it will allow to better understand the nuances of their work. It’s like getting acquainted with AWS without having dealt with at least VirtualBox before – working with the AWS Console or AWS API will not give an understanding of what is happening under… Read More »

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AI: What is the MCP?
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21 May 2025

Everyone around us is talking about MCPs all the time, and it’s time to understand the topic. So, today we will deal with the basic concepts – “what it is in general”, then we will write our own “micro-MCP server”, and in the next post – something more real, about working with VictoriaLogs. LLM Limitations… Read More »

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