Blog about DevOps and morehttps://www.mares.cz/enhttps://www.mares.cz//en/blog/replacing-kubernetes-ingress-nginxhttps://www.mares.cz//en/blog/replacing-kubernetes-ingress-nginxFinding a simple replacement for Kubernetes Ingress-NGINX. Ingress controllers are complex, and matching the simplicity of NGINX is hard.Thu, 05 Mar 2026 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/kubernetes-ingress-nginx-is-retiringhttps://www.mares.cz//en/blog/kubernetes-ingress-nginx-is-retiringIngress-NGINX enters minimal maintenance in March 2026. What it means for your clusters, realistic alternatives, and migration tips.Wed, 19 Nov 2025 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/kubecon-2025-day-onehttps://www.mares.cz//en/blog/kubecon-2025-day-oneKubeCon in London has officially begun and I dove right into the action, gathering all the insights and news I could.Thu, 03 Apr 2025 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/kubecon-co-located-events-2025https://www.mares.cz//en/blog/kubecon-co-located-events-2025Notes from KubeCon 2025 co-located events in London: ArgoCon, CiliumCon, Platform Engineering Day, Data on Kubernetes, and more.Wed, 02 Apr 2025 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/rejekts-2025-day-twohttps://www.mares.cz//en/blog/rejekts-2025-day-twoWhat was Monday aka the second day at Cloud Native Rejekts 2025 in London like? What are Rejekts? And what did I learn?Tue, 01 Apr 2025 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/rejekts-2025-day-onehttps://www.mares.cz//en/blog/rejekts-2025-day-oneWhat was the first day (Sunday) at Cloud Native Rejekts 2025 in London like? What are Rejekts? And what did I learn?Mon, 31 Mar 2025 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/prometheus-v3https://www.mares.cz//en/blog/prometheus-v3After more than 7 years, the new major version Prometheus 3.0 is here! What's new, what's changing, and what's been removed -- find out in this article.Mon, 18 Nov 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/s3-the-ftp-of-the-cloudhttps://www.mares.cz//en/blog/s3-the-ftp-of-the-cloudA closer look at AWS S3 and object storage as the cloud standard. Comparing cloud-hosted and self-hosted solutions for your workloads.Mon, 28 Oct 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/cloudnativepg-postgresql-on-kuberneteshttps://www.mares.cz//en/blog/cloudnativepg-postgresql-on-kubernetesCloudNativePG is an open-source Kubernetes operator for PostgreSQL. It handles cluster creation, scaling, backups, recovery, and monitoring.Thu, 17 Oct 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/helm-vs-kustomize-vs-yamlhttps://www.mares.cz//en/blog/helm-vs-kustomize-vs-yamlThere are several ways to deploy applications to a Kubernetes cluster — in this article, we'll look at three major ones.Tue, 01 Oct 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/gitops-and-argocdhttps://www.mares.cz//en/blog/gitops-and-argocdIn this article, we'll look at GitOps and the Argo CD tool, which is one of the tools for implementing GitOps.Tue, 24 Sep 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/gitlab-ci-vs-github-actionshttps://www.mares.cz//en/blog/gitlab-ci-vs-github-actionsAn in-depth comparison of GitLab CI and GitHub Actions — covering pipelines, runners, and key features of both CI/CD platforms.Mon, 16 Sep 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/docker-and-backend-containerization-dominancehttps://www.mares.cz//en/blog/docker-and-backend-containerization-dominanceIn this article, I'll cover the history of containers, application containerization, and the history of container orchestration.Tue, 10 Sep 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/terraform-infrastructure-as-codehttps://www.mares.cz//en/blog/terraform-infrastructure-as-codeTerraform lets you manage infrastructure as code — versioned, repeatable, and no more clicking through consoles or guessing server configs.Mon, 02 Sep 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/why-kuberneteshttps://www.mares.cz//en/blog/why-kubernetesIn this article, I write about why Kubernetes is so widespread and why it will be with us for a long time to come.Mon, 26 Aug 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/what-is-githttps://www.mares.cz//en/blog/what-is-gitWhat is Git? Perhaps a trivial question for some, but for others it's still a mystery. A brief summary of what Git is and how to use it.Mon, 19 Aug 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/kcd-prague-2024https://www.mares.cz//en/blog/kcd-prague-2024What was this year's Kubernetes Community Days Prague 2024 by the CNCF CZ/SK community like? Read about the experience and check out photos from the conference.Sat, 08 Jun 2024 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/upgrading-k3s-with-system-upgrade-controller-and-argo-cdhttps://www.mares.cz//en/blog/upgrading-k3s-with-system-upgrade-controller-and-argo-cdHow to automate k3s cluster upgrades using System Upgrade Controller and Argo CD with a GitOps approach.Thu, 17 Nov 2022 00:00:00 GMTvojtech@mares.czhttps://www.mares.cz//en/blog/gitlab-emails-with-aws-ses-via-terraformhttps://www.mares.cz//en/blog/gitlab-emails-with-aws-ses-via-terraformGitLab SMTP configuration for AWS SES with domain verification and DNS records managed by TerraformTue, 12 Apr 2022 00:00:00 GMTvojtech@mares.cz