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Best resources, news and tutorials about Kubernetes from last week.Kubernetes Weekly Newsletter, Kaptain, a FAUN Newsletter.
 
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Best resources, news and tutorials about Kubernetes from last week.
Kaptain
 
Curated Kubernetes news, tutorials, tools and more!
 
 
 
 

Imagine Docker Compose crossing paths with AI agents, while Pinterest leaves Hadoop in the dust with a turbocharged Kubernetes setup. Meanwhile, switching to Claude Code inside Docker containers could be the safety net your AI project never knew it needed and Helm’s a seamless dance partner for advanced deployments.


🤖 Automatic Helm Deployments with Ansible

🔄 Backup for GKE Supports Cross-Project Restore

🚀 Docker Brings Compose to the Agent Era

🐙 Docker Desktop 4.43: Expanded Model Runner

🔌 How I Finally Understood Virtual Machines vs Containers

🔧 Kubernetes List API: Performance Boosts

🌐 Next Gen Data Processing at Pinterest With Moka

🛠️ Use K8sGPT and Amazon Bedrock for Kubernetes

🗜️ Which Kubernetes is the Smallest?

🔍 Managing Kubernetes Port-Forwards in One Place


Keep forging ahead—innovation is your playground.


Have a great week!
FAUN Team
 
 
⭐ Patrons
 
info.perfectscale.io info.perfectscale.io
 
[WORKSHOP] Kubernetes Optimization Workshop (GPUs Included!)
 
 
Running Kubernetes efficiently is already complex. Add LLM workloads, and suddenly you're dealing with expensive GPU nodes that can't afford to sit idle.

Join Arthur Berezin (VP Product at PerfectScale by DoiT) and Anton Weiss (Chief Cluster Whisperer) as they share a clear, proven approach to optimizing Kubernetes costs without compromising reliability.

You'll learn:
→ How to manage CPU, memory, and GPU resources per workload.
→ How to align these with autoscaling for maximum efficiency.

✅ Clear code examples. ✅ Real use cases. ✅ No fluff.

Only 50 seats available. Register now !
 
 

👉 Spread the word and help developers find you by promoting your projects on FAUN. Get in touch for more information.

 
ℹ️ News, Updates & Announcements
 
kftray.app kftray.app
 
Manage all your kubernetes port-forwards in one place with
 
 

Meet the Rust-infused lifesaver sweeping away Kubernetes port-forwarding mayhem. It tames connections by routing everything through one neat hub. TCP and UDP? Handled effortlessly. Picture a pod bridging UDP traffic over TCP with precision, serving up a swanky GUI or a no-nonsense terminal view. Add a dash of Git magic for slick config syncing, and voilà—chaos controlled.

 
 
helpnetsecurity.com helpnetsecurity.com
 
Behind the code: How developers work in 2025
 
 

AI's Wobbly Ride with Developers—A staggering 76% of IT/SaaS folks embrace it, compared to a measly 22% across the board. Meanwhile, ChatGPT shoots up to an 82% adoption rate, blazing past others. The days of hunching over desktops are fading; 64% of devs now thrive in the cloud or remote setups. Security's finally getting its due, though planning and coordination still trip things up, like a pebble in your shoe. Python reigns supreme with 64% of users, MongoDB leads the database pack at 21%, and containers have conquered with a whopping 92% usage in IT.

 
 
venturebeat.com venturebeat.com
 
Solo.io wins ‘most likely to succeed’ award at VB Transform 2025 innovation showcase
 
 

Solo.io, a Cambridge-based cloud-native networking company, was named “Most Likely to Succeed” at the VB Transform Innovation Showcase in San Francisco on June 25.Founded in 2017, Solo.io offers tools to connect, secure, and monitor modern applications — especially those built on Kubernetes and microservices. The company raised \$135M in Series C funding in 2021 and holds a \$1B valuation

 
 
cloud.google.com cloud.google.com
 
Backup for GKE supports cross-project backup and restore
 
 

Backup for GKE just got a power-up. Now, you can zip data from one Google Cloud project and unpack it in another. This shake-up makes disaster recovery smoother, teamwork easier, and security tighter by keeping backups out of the wrong hands. All the control, none of the headache. No scripts needed.

 
 
docker.com docker.com
 
Docker Brings Compose to the Agent Era: Building AI Agents is Now Easy
 
 
Docker Compose now makes building and cranking up intelligent agents a breeze, effortlessly meshing with smart frameworks like Vercel AI SDK and Google's ADK. Unburden your machine by tossing compute-heavy tasks to the cloud with Docker Offload for that sweet GPU boost. Keep local resources untangled and your development journey smooth, from laptop to cloud, like it should be.
 
 
docker.com docker.com
 
Docker Desktop 4.43: Expanded Model Runner, Reimagined MCP Catalog, MCP Server Submissions, and Smarter Gordon
 
 
Docker Desktop 4.43 cranks up AI integration with the Model Runner. OpenAI APIs? Now they're putty in your hands. Fine-tune model runtime with ease. Enter Docker’s Gordon—the multitasker extraordinaire who juggles threads like a caffeinated circus performer. Enjoy speeds and accuracy that make old versions look like snails. To top it off, the Compose Bridge turns your Compose files into Kubernetes configs faster than you can say "YAML." One command. That's it.
 
 
aws.amazon.com aws.amazon.com
 
Use K8sGPT and Amazon Bedrock for simplified Kubernetes cluster maintenance
 
 

K8sGPT teams up with Amazon Bedrock to turbocharge Kubernetes operations. Think AI insights, faster debugging, and self-healing magic worthy of a veteran SRE. K8sGPT harnesses AI models like Claude and OpenAI in two ways: The trusty CLI for nimble maneuvers and Operator for relentless, watchful monitoring inside Kubernetes clusters.

 
 
 
🐾 From FAUNers
 
faun.pub faun.pub
 
I Generated Production-Ready Kubernetes Configs in 30 Seconds (Here’s How You Can Too)
 
 

C.R.A.F.T turns AI into your DevOps sidekick. It dishes out roles, actions, formats, and tones with swagger, wiping out any robotic boredom. Think custom prompts that crack the code of senior insights; it's like upgrading AI-pattern mimicry into a tête-à-tête with a tech sage.

 
 
faun.pub faun.pub
 
Migrating Amazon EKS to Bottlerocket AMI: Architecture, Real-World Issues & Fixes
 
 

Bottlerocket, Amazon's container host OS, scraps SSH like yesterday's software and opts for admin containers via SSM. It aligns beautifully with EKS security. Oh, and it teams up with Karpenter to launch nodes on the fly, keeping things smooth and snappy.

 
 
faun.pub faun.pub
 
Production-Grade ClickHouse Backup & Restore with GCS and Kubernetes
 
 

Wrangle ClickHouse backups in Kubernetes like you own the place. Get cozy with a sidecar tool and stash everything in GCS storage. Automate your glory with CronJobs and Jobs. Think midnight backups—handled without a sweat. Saves the 2 AM freakouts.

 
 

👉 Create your FAUN Page if it's not done yet and start sharing your blog posts, news, and tools on FAUN Developer Community, collect badges and more!
 

 
🔗 Stories, Tutorials & Articles
 
siderolabs.com siderolabs.com
 
Which Kubernetes is the Smallest? Examining Talos Linux, K3s, K0s, and More
 
 

Talos Linux slashes maintenance time by two-thirds. It outsmarts the competition with 47% less disk space and 49% less disk I/O. Say goodbye to OS bloat. Revel in simplicity.

 
 
xda-developers.com xda-developers.com
 
Gluetun is the best way to route your Docker containers through a VPN, here's how I use it
 
 

Gluetun provides a powerful and lightweight solution for routing outbound traffic from Docker containers through a secure VPN tunnel, offering improved privacy, isolation, and control for select applications in a home lab or development environment.

 
 
medium.com medium.com
 
Next Gen Data Processing at Massive Scale At Pinterest With Moka
 
 

Pinterest kicked its creaky Hadoop system to the curb and embraced Moka, a shiny Kubernetes + *AWS EKS platform, to crank up scalability and security.* Graviton ARM EC2 instances, Spark Operator, and Apache YuniKorn unleashed a performance beast and sliced costs. They wrestled with memory monsters and JDK upgrades, snagging a 5% performance upgrade. Moka now commands 70% of Pinterest's Spark workloads. By year's end, Hadoop will be six feet under.

 
 
medium.com medium.com
 
How I Finally Understood Virtual Machines vs Containers (Like Apartment Rentals)
 
 

VMs: Think of it as leasing that high-rise corner office—yours to deck out, private but a bit of a memory hog. Containers: More like shacking up with roommates—compact, super speedy, and easy to share the load.

 
 
faun.pub faun.pub
 
Automatic Helm Deployments with Ansible on Minikube: Jenkins & Grafana
 
 

Ansible wields its off-the-shelf modules like a charm bracelet, linking arms with Docker and Kubernetes. It turns the rut of Helm setup into a dance, orchestrating across machines like a seasoned conductor. Declare your Kubernetes resources with the flair of a playwright using Helm charts. Then, invite automation to join you for deployments that are as smooth as a Rube Goldberg machine when every piece clicks.

 
 
daryllswer.com daryllswer.com
 
How to configure routed IPv6 in Docker
 
 

Docker's playing it cool with native routed IPv6. No more clumsy hacks like NAT66. It’s Layer 3 purity—straight-up packet forwarding. Complexity? Toss it. Say hello to sleek routing. Bring your A-game with BGP for routing and tailor-made firewall rules for smooth, peer-to-peer traffic handling.

 
 
timsh.org timsh.org
 
Switching to Claude Code + VSCode inside Docker
 
 

Using Claude Code in Docker through VSCode's Dev Containers isn't just about tech—it’s about keeping your AI in a safe little box where it can't wreak havoc on your setup. Picture this: no panic over unexpected system tantrums. Plus, say goodbye to absurd rate limits and hefty bills. A bonus, particularly when side-by-side with the spendy likes of Cursor Pro.

 
 
ahmet.im ahmet.im
 
Kubernetes List API performance and reliability
 
 

Kubernetes has a meltdown during list calls in massive clusters. Imagine the apiservers screaming from out-of-memory pains when dealing with over 100k pods. Enter v1.31+, lending a hand with an in-memory watch cache to lighten the load. But let's be real—v1.34 is the hero we need, finally syncing pagination with the cache. Say goodbye to data overflows.

 
 
 
⚙️ Tools, Apps & Software
 
github.com github.com
 
ei-sugimoto/wakemae
 
 

Wakemae is a lightweight DNS server for Docker containers. Simply add labels to your containers to automatically access them by domain name. This project is similar dnsdock.

 
 
github.com github.com
 
replicatedhq/ttl.sh
 
 

An anonymous & ephemeral Docker image registry

 
 
github.com github.com
 
identiops/terraform-hcloud-k3s
 
 

Private k3s Kubernetes Terraform installer for Hetzner Cloud

 
 
github.com github.com
 
AvitalTamir/cyphernetes
 
 

A Kubernetes Query Language

 
 
github.com github.com
 
defenseunicorns-labs/cobol-demo
 
 

A Proof of Concept (PoC) for building and running Pro*COBOL programs in containers for deployment on Kubernetes

 
 

👉 Spread the word and help developers find and follow your Open Source project by promoting it on FAUN. Get in touch for more information.

 
🤔 Did you know?
 
 
Did you know that GitHub doesn’t use any secret VM booting tricks, but instead dramatically cuts CI/CD startup times by maintaining warm runner pools? These pools hold pre-configured VMs or containers ready with common dependencies, so jobs can begin in 5–10 seconds instead of minutes. As demand rises, additional runners are spun up, balancing developer speed, resource flexibility, and cost—all while avoiding cold-start delays.
 
 
😂 Meme of the week
 
 
 
 
🤖 Sensei Says
 
 

"In the labyrinth of modern infrastructure, automation is both the key and the minotaur."
— Sensei

 

(*) Sensei is a work-in-progress AI agent built by FAUN

 
👤 This Week's Human
 
 
Meet Bogdan Marian , Technical Director at Riverbed Technology. With over 20 years in software development across diverse sectors, Bogdan leads cutting-edge projects, such as an observability & monitoring SaaS product using micro-services on Azure. His commitment to fostering healthy engineering practices and his contributions to open source software since 2008 underscore his deep passion for technology. Known for his advocacy of continuous integration and delivery, Bogdan's dedication extends beyond code as a public speaker sharing insights at Romanian IT conferences.
 

💡 Engage with FAUN on LinkedIn — like, comment on, or share any of our posts on LinkedIn — you might be our next “This Week’s Human”!

 
❤️ Thanks for reading
 
 
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