An Empirical Study on Kubernetes Operator Bugs | Proceedings of the 33rd ACM SIGSOFT International Symposium on Software Testing and Analysis
An Empirical Study on Kubernetes Operator Bugs
1_r/devopsish
From 2021 but still relevant | USB-C hubs and my slow descent into madness - Dennis Schubert
A short story of me trying out different USB-C hubs, taking them apart, and slowly descending into madness.
Last Week in Kubernetes Development - Week Ending September 15 2024
Week Ending September 15, 2024
https://lwkd.info/2024/20240918
Developer News
You have nine days left to vote for the Steering Committee, and five days left to request an eligibility exception.
The first New Contributor Orientation in Europe/Asia time zones has been rescheduled to Thursday September 19th, 2024, at 1:30 PT / 8:30 UTC / 10:30 CET / 14:00 IST.
Cailyn Edwards is joining SIG-Security as co-Chair.
If you’re interested in sharing an unconference topic at the Kubernetes Contributor Summit, it’s time to add yours to the list
Release Schedule
Next Deadline: Production Readiness Freeze, October 3
The release team is collecting Enhancements for tracking in 1.32. They will need to be ready for PRR on October 3 and Enhancements freeze a week later.
KEP of the Week
KEP 3960: Introducing Sleep Action for PreStop Hook
This KEP proposes to add a “sleep” action for the Pod Lifecycle’s PreStop and PostStart hooks. Before this KEP, for achieving the same result, users had to use the exec action and run the sleep command inside it. This required you to have a binary for the sleep command inside your image. Since this is a common usecase, this KEP proposed adding the sleep action as a first class citizen.
This KEP is targeting stable in the upcoming v1.32 release.
Other Merges
Allow Relaxed DNS search string validation per KEP-4427, a first-time feature contribution from Adrian Moisey
Contextually log client-go request and response with code locations
kubelet: add log and event for cgroup v2 with kernel older than 5.8
Proper request context for accessing the RBAC etcd registry replacing context.TODO()
Speed up Job controller, cutting response times by 99%, and double the speed of the event delete handler
Update CEL and its tests to be current for 1.32
Evaluate allow-metrics-labels while initializing metrics; can cause some to show up as “unexpected”
Keep the ImageVolume source for existing pods even if the feature gate is disabled while updating
kubeadm: handle bad subcommands more consistently, add activeDeadlineSeconds
Reregister kubelet plugins successfully on Windows
Add a couple new metrics to measure Event handling and a test case
Fix a bug that prevented reconciling large groups of Endpoints
Test Improvements: StorageFactory cohabiting
Deprecated
Remove some deprecated upgrade flags from kubeadm 1.32
GA Feature Gates removal: NodeOutOfServiceVolumeDetach, MinDomainsInPodTopologySpread, NewVolumeManagerReconstruction
Replace old json newSerializers with current NewSerializerWithOptions()
Version Updates
go.mod to go 1.23
etcd client to 3.5.16
via Last Week in Kubernetes Development https://lwkd.info/
September 18, 2024 at 06:00PM
Valkey 8.0 rides high at Open Source Summit in Vienna
Valkey 8.0 rides high at Open Source Summit in Vienna
The Linux Foundation put Valkey centre stage at the Open Source Summit Europe this week, as the Redis fork hit its first full-digit release. Redis switched the…
September 18, 2024 at 01:47PM
via Instapaper
Open Source Summit Vienna 2024 | Notes In The Margin
Open Source Summit Vienna 2024 | Notes In The Margin
This week I’ve been in Vienna for Open Source Summit EU. I’ve been attending this event for many years, and it’s always valuable in many ways. A lot of that…
September 18, 2024 at 10:46AM
via Instapaper
Chleba/netscanner: Terminal Network scanner & diagnostic tool with modern TUI
Terminal Network scanner & diagnostic tool with modern TUI - Chleba/netscanner
cargo install netscanner
tgraf/bmon: bandwidth monitor and rate estimator
bandwidth monitor and rate estimator. Contribute to tgraf/bmon development by creating an account on GitHub.
rodyherrera/Quantum: 🚀 Hackable & Self-hosted Open-Source alternative to Vercel, Heroku, Netlify, etc. All your applications, just in one place. Develop and deploy with your favorite tools, and enjoy continuous deployment with GitHub.
🚀 Hackable & Self-hosted Open-Source alternative to Vercel, Heroku, Netlify, etc. All your applications, just in one place. Develop and deploy with your favorite tools, and enjoy continuous...
Stargazers opencost/opencost
Stargazers · opencost/opencost
OpenCost — your favorite open source cost monitoring tool for Kubernetes and cloud spend OpenCost give teams visibility into current and historical Kubernetes…
September 17, 2024 at 01:27PM
via Instapaper
Configure ArgoCD Prometheus Grafana & AWS Load Balancer Controller on EKS Cluster using Terraform
Configure ArgoCD, Prometheus, Grafana & AWS Load Balancer Controller on EKS Cluster using Terraform
Demonstration GitHub Repository used in this demonstration- https://github.com/AmanPathak-DevOps/EKS-ArgoCD-AWS-LB-Controller-Terraform/tree/master So, I have…
September 17, 2024 at 12:33PM
via Instapaper
Prometheus 3.0 Beta Released | Prometheus
Prometheus 3.0 Beta Released | Prometheus
The Prometheus Team is proud to announce the availability of Prometheus Version 3.0-beta! You can download it here. As is traditional with a beta release, we do…
September 17, 2024 at 12:29PM
via Instapaper
Secure by Design Alert: Eliminating Cross-Site Scripting Vulnerabilities | CISA
Secure by Design Alert: Eliminating Cross-Site Scripting Vulnerabilities
If you’re in the US and haven’t registered to vote in the upcoming election please register to vote in your state via Vote.gov
Find the information you need to make registration and voting easy. Official voter registration website of the United States government.
Tortoise: outpacing the optimization challenges in Kubernetes with Kensei Nakada
Tortoise: outpacing the optimization challenges in Kubernetes, with Kensei Nakada
https://kube.fm/tortoise-kensei
In this KubeFM episode, Kensei Kanada discusses Tortoise, an open-source project he developed at Mercari to tackle Kubernetes resource optimization challenges. He explains the limitations of existing solutions like Horizontal Pod Autoscaler (HPA) and Vertical Pod Autoscaler (VPA), and how Tortoise aims to provide a more comprehensive and automated approach to resource management in Kubernetes clusters.
You will learn:
The complexities of resource optimization in Kubernetes, including the challenges of managing HPA, VPA, and manual tuning of resource requests and limits
How Tortoise automates resource optimization by replacing HPA and VPA, reducing the need for manual intervention and continuous tuning
The technical implementation of Tortoise, including its use of Custom Resource Definitions (CRDs) and how it interacts with existing Kubernetes components
Strategies for adopting and migrating to new tools like Tortoise in a large-scale Kubernetes environment
Sponsor
This episode is sponsored by Learnk8s — estimate the perfect cluster node with the Kubernetes Instance Calculator
More info
Find all the links and info for this episode here: https://kube.fm/tortoise-kensei
Interested in sponsoring an episode? Learn more.
via KubeFM https://kube.fm
September 17, 2024 at 06:00AM
AWS brings OpenSearch under the Linux Foundation umbrella | TechCrunch
AWS brings OpenSearch under the Linux Foundation umbrella | TechCrunch
Enterprise 12:01 AM PDT • September 16, 2024 Image Credits: Derick Hudson / Getty Images AWS today announced that it is transitioning OpenSearch, its open…
September 16, 2024 at 03:39PM
via Instapaper
Local sheriff: Write down all the addresses of Kamala supporters
Local sheriff: ‘Write down all the addresses’ of Kamala supporters
PORTAGE COUNTY, Ohio (WJW) – A local sheriff is making headlines after a controversial social media post. In a post on Saturday from the sheriff’s Facebook…
September 16, 2024 at 03:07PM
via Instapaper
YouTube
Stop Losing Requests! Learn Graceful Shutdown Techniques
In this video, we dive into the importance of graceful shutdowns for applications, whether running locally, in Docker containers, or Kubernetes clusters. Learn how to handle SIGTERM and SIGINT signals to ensure your app completes ongoing requests before shutting down. We'll show step-by-step how to implement signal handling for smooth shutdowns. Perfect for developers looking to enhance their app's reliability and user experience during upgrades or failures. Watch now to master graceful shutdowns across different environments!
GracefulShutdown #SignalHandling #Docker #Kubernetes
Consider joining the channel: https://www.youtube.com/c/devopstoolkit/join
▬▬▬▬▬▬ 🔗 Additional Info 🔗 ▬▬▬▬▬▬ ➡ Transcript and commands: https://devopstoolkit.live/containers/stop-losing-requests-learn-graceful-shutdown-techniques 🎬 Master Terminal Multiplexing with Zellij in Minutes!: https://youtu.be/ZndhImXIGlg 🎬 Is Timoni With CUE a Helm Replacement?: https://youtu.be/bbE1BFCs548
▬▬▬▬▬▬ 💰 Sponsorships 💰 ▬▬▬▬▬▬ If you are interested in sponsoring this channel, please visit https://devopstoolkit.live/sponsor for more information. Alternatively, feel free to contact me over Twitter or LinkedIn (see below).
▬▬▬▬▬▬ 👋 Contact me 👋 ▬▬▬▬▬▬ ➡ Twitter: https://twitter.com/vfarcic ➡ LinkedIn: https://www.linkedin.com/in/viktorfarcic/
▬▬▬▬▬▬ 🚀 Other Channels 🚀 ▬▬▬▬▬▬ 🎤 Podcast: https://www.devopsparadox.com/ 💬 Live streams: https://www.youtube.com/c/DevOpsParadox
▬▬▬▬▬▬ ⏱ Timecodes ⏱ ▬▬▬▬▬▬ 00:00 Introduction to Graceful Shutdown 02:45 Graceful Shut Down of Applications Running Locally 07:43 Graceful Shut Down of Docker Containers 11:13 Graceful Shut Down of Kubernetes Pods
via YouTube https://www.youtube.com/watch?v=eQPYsGrZW_E
UV — Oliver Andrich is (somewhat) sold
In this post, I talk about how my initial doubts about using UV for Python projects completely changed after giving it another shot. At first, I didn’t think the speed improvement was all that important, but once I saw how much UV could simplify managing different Python versions and tools, I realiz
Oliver Andrich
Valkey · Generally Available: Valkey 8.0.0
Today marks a milestone for the Valkey project: the first major release.
DamascenoRafael/reminders-menubar: Simple macOS menu bar application to view and interact with reminders. Developed with SwiftUI and using Apple Reminders as a source.
Simple macOS menu bar application to view and interact with reminders. Developed with SwiftUI and using Apple Reminders as a source. - DamascenoRafael/reminders-menubar
AMD GPU Linux Driver Becoming "Really Really Big" That It's Starting To Cause Problems
The modern AMD kernel graphics driver 'AMDGPU' is the biggest driver within the mainline Linux kernel and is approaching six million lines of code albeit a large chunk of that is made up of auto-generated header files for each supported GPU
JMBeresford/retrom: A centralized game library/collection management service with a focus on emulation
A centralized game library/collection management service with a focus on emulation - JMBeresford/retrom
Elon Musk Deletes Tweet That Asked Why No One Is Trying to Assassinate Biden and Harris
Elon Musk Deletes Tweet That Asked Why No One Is Trying to Assassinate Biden and Harris
Published September 16, 2024 | Comments (3) Elon Musk, co-founder of Tesla and SpaceX and owner of X Holdings Corp., speaks at the Milken Institute's Global…
September 16, 2024 at 10:28AM
via Instapaper
Here's When iOS 18 Rolls Out Today in Every Time Zone
Here's When iOS 18 Rolls Out Today in Every Time Zone
It's that time of year again. Apple is about to release iOS 18, which promises to bring a range of new features and improvements to iPhones worldwide. It's…
September 16, 2024 at 10:27AM
via Instapaper
AWS Welcomes the OpenSearch Software Foundation | Amazon Web Services
The OpenSearch project is moving to The Linux Foundation to become the OpenSearch Software Foundation.
Valkey Unlock 1 Million RPS: Experience Triple the Speed with Valkey - part 2
Valkey · Unlock 1 Million RPS: Experience Triple the Speed with Valkey - part 2
2024-09-13 · Dan Touitou, Uri Yagelnik In the first part of this blog, we described how we offloaded almost all I/O operations to I/O threads, thereby freeing…
September 16, 2024 at 09:10AM
via Instapaper
Linux dev swatted and handcuffed live during a development video stream — perps remain unidentified
René Rebe, a 25-year veteran of Free and Open-Source Software development, was swatted and taken in for questioning.
What’s Microsoft doing to prevent another CrowdStrike incident in the Windows kernel | Taking steps that drive resiliency and security for Windows customers
On Tuesday, Sept. 10, we hosted the Windows Endpoint Security Ecosystem Summit. This forum brought together a diverse group of endpoint security vendors and government officials from the U.S. and Europe to discuss strategies for improving resiliency
M4 Macs, New iPad Mini, and iPad 11 Expected at Upcoming Apple Event
Apple will likely hold another event in October this year to announce new Macs and iPads. If so, it would be the fourth time in the last five years that Apple has held an event in October.
1.3 million Android-based TV boxes backdoored; researchers still don’t know how
Infection corrals devices running AOSP-based firmware into a botnet.