🛠️ 2025-10-24 Tech Update Summary

🔹 Kubernetes - 7 Common Kubernetes Pitfalls (and How I Learned to Avoid Them)

The blog post titled “7 Common Kubernetes Pitfalls (and How I Learned to Avoid Them)” outlines challenges encountered when using Kubernetes and offers strategies to prevent them. The author describes their initial struggles with Kubernetes and provides insights into seven common pitfalls. These include:

  1. Skipping Resource Requests and Limits: Not defining CPU and memory requirements can lead to resource starvation or hoarding. It’s important to set and monitor these values to ensure efficient cluster management.

  2. Underestimating Liveness and Readiness Probes: Without these probes, Kubernetes might not correctly assess container health, causing issues like unresponsive applications. Simple probes can help manage container health effectively.

  3. Relying Solely on Container Logs: Using only kubectl logs can lead to lost data since logs aren’t preserved after container deletion. Centralizing logs and adopting tools like Fluentd or Fluent Bit is recommended.

  4. Treating Dev and Prod the Same: Using identical configurations across environments can cause performance or security issues. Customizing settings for different environments is crucial.

  5. Leaving Old Resources: Unused resources can consume cluster space and increase costs. Regular audits and labeling resources help manage this.

  6. Diving Too Deep into Networking Too Soon: Implementing complex networking solutions without understanding basic Kubernetes networking can complicate troubleshooting. Start with simple setups and gradually introduce advanced features.

  7. Going Too Light on Security and RBAC: Insecure configurations can lead to vulnerabilities. Use RBAC, pin image versions, and enforce security contexts to mitigate risks.

The post emphasizes learning from mistakes and understanding Kubernetes to avoid unnecessary challenges. It encourages using official documentation and community resources for further learning. 👉 Read more

🔹 Spring Boot - A Bootiful Podcast: Spring team engineer Dariusz Jędrzejczyk on the latest-and-greatest in the reactive world, MCP, and more

The blog post is about a podcast episode featuring Dariusz Jędrzejczyk, a Spring team engineer. In the episode, they discuss the latest advancements in the reactive programming world, Multi-Cloud Platform (MCP), and other related topics. The conversation is aimed at Spring enthusiasts who are interested in staying updated with new developments in these areas. 👉 Read more

🔹 Docker - Docker + E2B: Building the Future of Trusted AI

The blog post titled “Docker + E2B: Building the Future of Trusted AI” discusses the increasing importance of trust in the era of AI agents. As teams are at different stages in adopting AI agents, ensuring these agents operate securely is a major concern. Docker, a platform used by over 20 million developers, plays a crucial role in building and distributing software safely, helping to address these trust issues. The post likely elaborates on how Docker and E2B are contributing to a secure environment for AI development and deployment, emphasizing the need for trusted software in the burgeoning field of AI agents. 👉 Read more

🔹 Java - Three Upcoming G1 Improvements - Inside Java Newscast #99

The blog post discusses upcoming improvements to Java’s G1 garbage collector. These include the recently merged JEP 522, which adds a second card table to boost throughput, and the candidate JEP 523, which proposes making G1 the default garbage collector even in scenarios where Serial GC was traditionally used. Additionally, there are draft proposals for implementing automatic heap sizing for both G1 and ZGC. 👉 Read more

🔹 Golang - Flight Recorder in Go 1.25

The blog post discusses the introduction of a new diagnostic tool called “Flight Recorder” in Go version 1.25. This tool is designed to help developers capture and analyze detailed runtime information about their Go applications. By recording events and states over time, Flight Recorder aims to improve the debugging and performance optimization processes, making it easier for developers to identify and resolve issues in their applications. The post likely provides an overview of how Flight Recorder works, its benefits, and potential use cases within Go development. 👉 Read more

🔹 Helm - Helm Turns 10

The blog post celebrates the 10th anniversary of Helm, which originated from a hackathon shortly after the release of Kubernetes 1.1.0. The first commit to the Helm project was made by Matt Butcher on October 19, 2015. This initial version, known as Helm v1, is documented in the helm-classic Git repository. Helm later merged with Deployment Manager and became part of the Kubernetes project. 👉 Read more