Learn Kubernetes Weekly issue 151 · 1 Oct 2025
K8s Observability Day One, Debugging Packet Drops, Migrating 30+ Clusters, Gateway API v1.3.0, Inference Extension
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- Podcasts, mini-series, and interviews
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Articles
Kubernetes observability from day one - mixins on Grafana, mimir and alloy
amazinglyabstract.it
This article shows how to use Kubernetes Mixins (bundles of dashboards, alerts, rules in Jsonnet) to bootstrap observability in Grafana/Mimir/Alloy setups, with config overrides for custom metrics.
Troubleshooting packet drops in a Kubernetes-based observability platform
medium.com
In this case study, you will learn how the SRE team at Kapital Bank meticulously analyzed network kernel issues on a Kubernetes-based Memcached platform, uncovering and resolving intermittent performance problems through kernel parameter tuning.
How We Migrated 30+ Kubernetes Clusters to Terraform
medium.com
This case study describes how a team migrated 30+ Kubernetes clusters from Sceptre/CDK/CloudFormation to Terraform, using iterative waves, custom import tooling, and CI-driven validation to minimize risk.
Gateway API v1.3.0: Advancements in Request Mirroring, CORS, Gateway Merging, and Retry Budgets
kubernetes.io
This article introduces percentage-based request mirroring, CORS filtering, gateway merging, and retry budgets in Gateway API v1.3, highlighting which features are GA and which remain experimental.
Introducing Gateway API Inference Extension
kubernetes.io
This article introduces a Kubernetes Gateway API extension built for LLM/inference workloads, enabling model-aware routing, per-request criticality, and inference-optimized load balancing.
Kubernetes Node Stability and Performance: Tuning Kubelet for Better Resource Management
medium.com
This article explains how to configure kubelet resource reservations, eviction thresholds, and graceful shutdown settings to improve Kubernetes node stability and prevent crashes.
Articles worth checking out:
Teaching Claude to be Your Migration Engineer: A Stateful Kubernetes Story
Lost your YAMLs?
Tomorrow, I will show how I use Claude as my daily driver to solve all my Kubernetes (and non) tasks.
Tutorials
Dynamic PVC provisioning on AWS EKS
faun.pub
This tutorial demonstrates how to set up dynamic PersistentVolumeClaim (PVC) provisioning on AWS EKS using the AWS EBS CSI driver and Terraform.
medium.com
This tutorial explains how to configure GPU sharing via NVIDIA MPS on Oracle Kubernetes Engine (OKE).
It walks through GPU node pool setup, cloud-init customization, device-plugin Helm deploy, and testing shared access with 10 replicas.
Safeguarding OKE: Passwordless kubectl Access with OCI Instance Principals
ivan-delic.medium.com
This tutorial shows how to enable passwordless kubectl access to an Oracle Kubernetes Engine (OKE) cluster by using OCI Instance Principals, dynamic groups, scoped IAM policies, and the OCI CLI exec plugin.
Ben Poland walks through Faire's complete CI transformation, from a single Jenkins instance struggling with thousands of lines of Groovy to a distributed Buildkite system running across multiple Kubernetes clusters.
He details the technical challenges of running CI workloads at scale, including API rate limiting, etcd pressure points, and the trade-offs of splitting monolithic pipelines into service-scoped ones.
You will learn:
- How to architect CI systems that match team ownership and eliminate shared failure points across services
- Kubernetes scaling patterns for CI workloads, including multi-cluster strategies, predictive node provisioning, and handling API throttling
- Performance optimization techniques like Git mirroring, node-level caching, and spot instance management for variable CI demands
- Migration strategies and lessons learned from moving away from monolithic CI, including proof-of-concept approaches and avoiding the sunk cost fallacy
Kubernetes jobs
Machine Learning Engineer with Moser Consulting
Salary: $120K to $155K a year
Location: based in the office in Indianapolis, IN, USA
Tech stack: Kubernetes, Docker, Python
Software Engineer with xAI
Salary: $180K to $440K a year
Location: based in the office (and remote from home) in Palo Alto, CA, USA
Tech stack: Kubernetes, Docker, Rust, C++, Python, Typescript, PostgreSQL
Data Engineer with Komodo Health
Salary: $153K to $238K a year
Location: remote from the United States
Tech stack: Kubernetes, AWS, Docker, Python, SQL, PostgreSQL, Spark, Airflow, Snowflake, Terraform
System Administrator with NSW Police Force
Salary: $149.74K to $176.91K a year
Location: based in the office in Parramatta, AU
Tech stack: Kubernetes, OpenShift, Shell, Python, Ceph, Grafana, Prometheus
Head of Platform Engineering with Corelight
Salary: $225K to $277K a year
Location: remote from North America
Tech stack: Kubernetes, AWS, Azure, GCP, On-premise, Helm, Go, Python, Java, Scala
Discover more Kubernetes jobs on Kube Careers →
Code & tools
Helmper – Helm Charts and Image Registry Manager
github.com/ChristofferNissen
helmper is a Go program that reads Helm Charts from remote OCI registries and pushes the charts container images to your registries with optional OS-level vulnerability patching.
github.com/gianlucam76
K8s cleaner is a controller that identifies, removes, or updates stale/orphaned or unhealthy resources to maintain a clean and efficient Kubernetes cluster.
Auto-generate Kubernetes CRDs/Controllers from OpenAPI Specs
github.com/krateoplatformops
This controller takes an OpenAPI (OAS 3.0/3.1) spec and a user-defined
RestDefinition, then automatically generates CRDs and REST controllers to let you manage external APIs as Kubernetes resources.github.com/adrghph
This Helm chart deploys a passive-mode FTP server (vsftpd) in Kubernetes using NodePort and auto-generates HAProxy configuration for proper Passive FTP/FTPS support across nodes.
Kwatcher – External JSON-watch Kubernetes Operator
github.com/Berg-it
Kwatcher is an operator that automatically fetches external configurations via secure secrets, creates ConfigMaps, and triggers pod redeployments on data changes.
Other interesting projects:
Upcoming Kubernetes events
Oct
8
In-person conference organized by CNDA Austria.
Location: Vienna, AT
This event requires an entrance fee
Oct
8
Building and Scaling GenAI Inference Workloads with Amazon EKS
Online workshop organized by AWS + LearnKube.
This is a virtual event
This is a free event.
Oct
8
Online conference organized by CNCF.
This is a virtual event
This is a free event.
Oct
9
Kubernetes Community Days Warsaw 2025
In-person conference organized by KCD Warsaw.
Location: Warsaw, PL
This event requires an entrance fee
Oct
13
Advanced Kubernetes course (Amsterdam)
In-person workshop organized by Learnk8s.
Location: Amsterdam, NL
This event requires an entrance fee
Kubernetes call for papers
11
days
KubeCon + CloudNativeCon Europe 2026
The Call For Paper is open until 12 October 2025 at UTC. More info →
Location: Amsterdam, NL
In-person conference organized by Linux Foundation.
The conference starts on the 23 March 2026.
- Apply here
4
days
The Call For Paper is open until 5 October 2025 at UTC. More info →
Location: Paris, FR
In-person conference organized by CND France.
The conference starts on the 3 February 2026.
- Apply here
31
days
The Call For Paper is open until 2 November 2025 at UTC. More info →
Location: Los Angeles, CA, USA
In-person conference organized by Devopsdays.
The conference starts on the 7 March 2025.
- Apply here
expired
The Call For Paper was open until 1 October 2025 at UTC. More info →
Location: Wollongong, AU
In-person conference organized by Devopsdays.
The conference starts on the 26 November 2025.
- Apply here
29
days
The Call For Paper is open until 31 October 2025 at UTC. More info →
Location: Porto Alegre, BR
In-person conference organized by Devopsdays.
The conference starts on the 29 November 2025.
- Apply here
18
days
The Call For Paper is open until 20 October 2025 at UTC. More info →
Location: Salvador, BR
In-person conference organized by Devopsdays.
The conference starts on the 6 December 2025.
- Apply here
Until next time!
— Dan