Category: IT Security

Hello! This is the third installment of our GitOps series. We’ve previously looked at the definition and use cases of GitOps. Today, we’ll delve deeper into its foundations, exploring the four absolute principles that underpin GitOps and the realistic challenges encountered when applying them in real-world scenarios. Beyond simple theory, I’ll guide you in detail…

Hello! Following up on our previous discussion about the concept of GitOps, today we’ll dive deep into practical use cases under the theme: “So, how can GitOps actually be utilized?” Beyond mere theory, I’ll thoroughly explore how GitOps is transforming businesses in real-world scenarios! 🚀 GitOps goes beyond being just a tool for deploying applications;…

Hello! Today, we’re going to dive deep into GitOps, which has become the pinnacle of modern DevOps and an essential operating model in cloud-native environments. 🚀 If you read through this for about 10 minutes, you’ll perfectly understand everything from why GitOps emerged to its actual implementation principles. GitOps, in one sentence, is defined as…

Hello. If the Platform Maturity Model I previously organized shows ‘how prepared an organization is,’ then DORA Metrics are a powerful tool to prove ‘what performance that platform is actually achieving.’ I will detail this in a blog post format. Today, we will delve deeply into DORA Metrics, which are essential to know when you…

The following article is a Gemini translation of the CNCF Platform Whitepaper.  Original: https://tag-app-delivery.cncf.io/whitepapers/platform-eng-maturity-model/ Cloud Native Computing Foundation (CNCF) Platform Working Group Announcement Version 1.0.0 | Released October 31, 2023 1. Introduction The CNCF’s initial ‘Platform Definition Whitepaper’ describes what an internal platform for cloud computing is and the value it promises to enterprises. However,…

Hello! This is the fourth installment in the Kyverno series, the sophisticated architect of cluster security. 👷‍♀️ In the last session, we clearly understood the differences between Policy and ClusterPolicy. Now, let’s dive deep into the most crucial blocks for defining “which resources, under what conditions, this policy will apply to?” when writing policies: Match…

Hello! This is the third installment of the Kyverno Master Guide, which is responsible for Kubernetes security and operational stability. 🛡️ Last time, we briefly touched upon basic installation using Helm and optimizing values.yaml. Today, we will delve deeply into the most crucial topic that should never be overlooked in a production environment: “Kyverno High…

Hello! This is the second part of the Kyverno series, the core of Kubernetes security. 🛡️ Last time, we looked at the overall architecture of Kyverno. Today, we’ll dive into practice and discuss “How to perfectly install and optimize Kyverno in a cluster?” In particular, we will thoroughly explore the installation using Helm, which is…

Hello everyone! Today, we’re going to dive deep into Kyverno’s architecture and its core components, which are essential for Kubernetes operations and a key topic for the KCA exam. 🕵️‍♂️ When operating Kubernetes, you might wonder, “Who deployed a Pod without security settings in my cluster?” This is where Kyverno comes in as a savior.…

Hello! This is the fifth installment of the GitOps series. So far, we’ve looked at concepts, principles, and operating models. Now it’s time to answer the most practical question: “So, which tool should I use?” As of 2026, there are many excellent GitOps tools on the market, but choosing the right one for your team’s…