erwin-schleier.com

What It Is

erwin-schleier.com is the personal technical notes blog of erwin schleier, titled “tech notes & rabbit holes.” Based on the crawled content, it is not a SaaS developer tool or platform, but rather a collection of practical articles around DevOps, Kubernetes, GitOps, CI/CD, Ollama, and local LLMs. The homepage shows a total of 7 posts, covering topics such as Kubernetes Ingress, GitLab CI/CD, Argo CD, Prometheus/Grafana, and connecting VS Code to local models.

Core Evaluation

In terms of features and use cases, the site mainly provides tutorial-style content. For example, the Kubernetes Ingress article walks through prerequisites, installing NGINX Ingress Controller with Helm, creating DNS records, deploying a sample NGINX service, and configuring TLS with cert-manager and Let’s Encrypt. The steps are fairly complete. The Ollama article shows how to install Ollama, pull Qwen3.5, call the local 11434 API, and add a local model to the model selector in VS Code/GitHub Copilot.

The technical stack covered leans strongly toward cloud-native and DevOps topics, including Kubernetes, Helm, kubectl, NGINX Ingress Controller, cert-manager, Let’s Encrypt, GitLab CI/CD, ArgoCD, Renovate, Prometheus, Grafana, Ollama, and VS Code. The articles include Bash commands, YAML configurations, and curl API examples. The site itself does not state whether it is open source or closed source, nor does it provide any API/SDK; the API-related information mainly comes from the Ollama local interface discussed in the articles.

Pricing and Self-Hosting

The crawled content does not mention subscriptions, paid courses, or commercial licensing, so the articles appear to be free to read. In terms of self-hosting, the blog itself does not offer a packaged deployment option, but many of the articles focus on local or self-managed infrastructure practices, such as running Ollama locally or deploying Ingress and certificate management components on one’s own Kubernetes cluster.

Pros and Cons

The main strength is its practical orientation: commands, configurations, outputs, and verification steps are relatively concrete, making the articles directly useful for engineers with some background knowledge. The posts also explain key concepts, such as the difference between Ingress and an Ingress Controller. The drawbacks are its small content library—the crawled pages show only 7 posts—and the fact that it is not an official documentation site. It lacks a version compatibility matrix, systematic navigation, FAQs, and service/support commitments. There is also no Chinese-language content.

Who It’s For and Access from China

This site is suitable for DevOps engineers, beginner-to-intermediate Kubernetes users, and developers who want to try GitOps or connect local LLMs to an IDE. It is not suitable for teams looking for enterprise-grade support, commercial tool procurement, or a complete platform offering. The crawled text does not provide information about access from China, so that remains unknown; there is also no payment information. If access is unstable, users can prioritize the official documentation for Kubernetes, Helm, Ollama, GitLab, and Argo CD, or use documentation from domestic cloud vendors’ container services and KubeSphere community resources as alternatives.