![](/images/yuyatinnefeld.png)
Yuya Tinnefeld
"We can't control the ocean, but we can learn how to surf the waves."
Starting a new role has opened up a deeper dive into the world of Service Mesh, especially Istio. Recently, I found myself stumbling when a colleague asked, “What exactly gets installed with istioctl install --set profile=demo -y” or “How does the Ingress Gateway work? What’s the difference between Istio Ingress...
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TestKube 🚀 Getting Started with TestKube - Kubernetes-Native Testing Framework
Recently, I explored TestKube for a project involving service mesh provisioning verification in Kubernetes clusters. As I’ll be using TestKube extensively, I’m creating this guide for both myself and my blog readers.
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Istio Mastery ⛵ Sidercar-Less with Ambient Mesh
Welcome to Istio Mastery Guide!
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Service Mesh 🌐 Comparing Different Providers
Welcome to my Service Mesh Comparison Guide!
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Navigating the Shift ☁️ Exploring Azure after GCP
Embarking on a journey from GCP (Google Cloud Platform) to the Microsoft Azure, I find myself at the crossroads of technological transition. Having honed my skills within the realms of GCP, I will soon be working in a company where Microsoft Azure is used. As I embark on this transformative...
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Kubernetes Debugging - Tips and Best Practices
Welcome to the comprehensive guide on Kubernetes debugging. Recently, I found myself immersed in lengthy debugging sessions due to typos in Kubernetes configurations, prompting the realization of the need for a structured approach. In this post, we’ll explore the intricate world of Kubernetes troubleshooting, offering insights into best practices and...
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Istio Mastery ⛵ Session 5 - Troubleshooting / Debugging
Welcome to Istio Hands-On Pt 5!
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Istio Mastery ⛵ Session 4 - Security
Welcome to Istio Hands-On Pt 4!
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Istio Mastery ⛵ Session 3 - Traffic Management
Welcome to Istio Hands-On Pt 3!
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Istio Mastery ⛵ Session 2 - Observability
Welcome to Istio Hands-On Pt 2!
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Istio Mastery ⛵ Session 1 - Setup Istio Environment
Welcome to Istio Hands-On Pt 1!
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Istio Mastery ⛵ Session 0 - Microservices Deployment
Welcome to the Istio Hands-On series!
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Exploring Inner Peace 🧘 A Beginner's Guide to Vipassana Meditation
Over the past months, I’ve found myself drawn to the world of spirituality, delving into yoga philosophy, Buddhism, and mindfulness techniques like Vipassana and Zazen. This past Christmas, I embarked on a 10-day Vipassana retreat at the Dhamma Center in Cambodia, eager to delve deeper into this powerful practice.
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Service Mesh 🌐 A Deep Dive into the Istio Core Components
Having explored the concept of service meshes in our previous blog post, we’re now ready to delve deeper into the Istio world, the most widely adopted open-source service mesh platform. While this blog post focuses on establishing a fundamental understanding of Istio’s core features and components, it may serve as...
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Service Mesh 🌐 From Monolith to Mesh - Building Resilient Software
A few days ago, I was discussing the significance of monolithic architecture, microservices and service mesh. However, upon further thought, I realized it’s more relevant to consider when we should embark on the journey of transitioning to microservices and service mesh. In this blog post, I’ll delve into a fairy...
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SOLID & IDEALS 🖼️ Part 2 - Build Awesome Microservices With IDEALS!
In my second post about architecture design we will discuss IDEALS. If you’re unfamiliar with SOLID, please check it out here before diving into this blog post. After reading this article, you’ll be able to consider not only your software application but also the cloud infrastructure level.
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SOLID & IDEALS 🖼️ Part 1 - Improving Your Code Quality With SOLID!
In my daily work, I usually concentrate on building CI/CD pipelines, designing cloud infrastructures, monitoring these systems, and developing data pipelines. However, last week brought an exciting change from my typical routine as I ventured into the realm of software engineering principles, particularly “SOLID” and “IDEALS”.
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The C4 Model 🗺️ How to effectively communicate about software architecture
Hey there, I was recently presented with the chance to collaborate on crafting architectural diagrams using the C4 Model in my workplace and want to demonstrate how to create a software architecture diagram using the C4 model, and also guide you through implementing diagrams as code using the tool “Structurizr...
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PCA 🔥 120 Questions for Prometheus Certified Associate Exam
Hey there, fellow Prometheus enthusiasts!
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Meet Mr. Ranedeer 🤖 Your Fun and Knowledgeable AI Tutor
When it comes to learning complex topics like DevOps tech stacks, Golang, or cloud provider APIs, having a reliable and engaging learning tool can make all the difference. Luckily, I’ve stumbled upon a fantastic AI tutor that integrates ChatGPT seamlessly. Allow me to introduce you to Mr. Ranedeer AI Tutor,...
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The Power of Versatility 👨🚀 Why Specialization Alone Won't Cut It for Software Engineers
Hello there! Let me introduce myself briefly. I currently work as an IT specialist, specifically as a DevOps engineer, at a prominent German food retail company. My focus is on automating software lifecycle processes. Although my experience in the software engineering field is relatively short, I can’t help but wonder...
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Prometheus Made Easy 🤖 A 5-Minute Crash Course
In today’s dynamic and fast-paced technology landscape, monitoring and ensuring the health and performance of your systems and applications is of utmost importance. This is where Prometheus comes into the picture. With its robust features and flexibility, Prometheus has gained popularity as a leading solution for gathering metrics, visualizing data,...
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Vault 🤖 HashiCorp Vault Associate Cheat Sheet
This week I passed the Vault Associate certification exam and would like to share my preparation notes with those who are interested in passing the exam and becoming certified.
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Hello World 👶 My First Blog Post
For some time now, I have been desiring to create a personal website. This would be a place where I can store various files and documents, and potentially host a blog where I can freely express my personal and professional thoughts.