Learn Kubernetes Weekly issue 189 · 24 Jun 2026
Zero-Downtime Ingress on GCP, Enterprise AI GPUaaS, Operator Conditions and Phases, Container-Aware GOMAXPROCS, Pod OOM Kills
This issue is brought to you by Solanica - replace RDS with a self-hosted DBaaS on your own Kubernetes clusters with automated Day 2 operations and zero vendor lock-in.
Articles
Zero-Downtime Kubernetes Ingress Controllers on GCP
medium.com
This case study explains why Nginx Ingress Controller causes TCP connection timeouts on GKE during pod termination.
It traces:
- kube-proxy health check delays (~5s),
- GCP LB probe intervals (24s),
- and KEP-1669 terminating endpoint behavior
solanica.io
This whitepaper explains how to run production MySQL on Kubernetes with
- proxy layers,
- replication topologies,
- Guaranteed QoS,
- storage tradeoffs,
- monitoring, backups, PITR, and operator selection.
sponsored
Architecting GPUaaS for Enterprise AI On-Prem
sassonjoe66.medium.com
This article explains how a single-node OpenShift cluster can be turned into a multi-tenant on-premises GPU platform with reservation-based scheduling, MIG partitioning, time slicing, isolated namespaces, and controller-driven self-healing.
Conditions, Phases, and Declarative Phase Rules in Kubernetes Operators
dev.to
This article explains:
- why Kubernetes operator status conditions should be the single source of truth,
- how phase should be derived from conditions via declarative rules,
- and introduces a Go library for doing this with an interactive browser demo.
go.dev
This article explains how Go 1.25 introduces automatic GOMAXPROCS configuration based on container CPU limits to prevent throttling in Kubernetes environments.
Why your kubernetes Pod was OOM killed and who really killed it
dev.to
This article explains that Kubernetes OOMKilled events do not always come from a small memory limit, and shows how kubelet eviction, cgroup limits, and the Linux kernel OOM killer each terminate pods differently.
Turn your Kubernetes clusters into a self-hosted DBaaS
Deploy, manage, and observe stateful workloads across any Kubernetes fleet—while keeping your data strictly within your perimeter.
Tutorials
Running PostgreSQL on Kubernetes
solanica.io
This whitepaper explains how to run production PostgreSQL on Kubernetes with PgBouncer, Patroni or CloudNativePG HA, WAL-aware storage, Prometheus monitoring, pgBackRest backups, PITR, and operator selection.
sponsored
GitOps at Enterprise Scale: Inside WSC Sports Deployment Platform
medium.com
This case study shows how WSC Sports rebuilt their entire deployment model from helm upgrade pipelines to full GitOps using ArgoCD ApplicationSets, covering:
- single-chart monorepo design,
- shadow deployments,
- AppProjects,
- CI code freeze gates.
Deploy production generative AI at the edge using Amazon EKS Hybrid Nodes with NVIDIA DGX
aws.amazon.com
This tutorial shows how to run production generative AI at the edge by attaching on-prem NVIDIA DGX systems to an Amazon EKS control plane with hybrid nodes, GPU Operator, and NVIDIA NIM.
Deploying OpenClaw on Kubernetes with Helm
serhanekici.com
This tutorial shows how to deploy OpenClaw on Kubernetes with a Helm chart and ArgoCD, using persistent storage, config modes, secrets handling, and network policies to reduce the blast radius of an AI agent.
From client-go to controller-runtime: Rebuilding a Kubernetes Controller
dev.to
This tutorial shows how to migrate a Kubernetes controller from raw client-go to controller-runtime, covering Manager, Reconciler, cached client and automatic workqueue with a working Mini Task Runner example.
Kubernetes jobs
Software Engineer with PatientPoint
Salary: $88.3K to $164K a year
Location: remote from
Tech stack: Kubernetes, Kubernetes, AWS, Amazon ECS, Docker, observability tools, New Relic, Sentry, performance monitoring platforms, HIPAA
Solution Engineer with Everpure
Salary: $88.2K to $275K a year
Location: remote from
Tech stack: Kubernetes, Kubernetes, AWS EC2, EKS, AKS, AWS, Azure, GKE, GCP, Slurm
Software Engineer with Phaidra
Salary: $123.76K to $200.2K a year
Location: remote from
Tech stack: Kubernetes, Kubernetes, GKE, Docker, GCP, Grafana Cloud, alerting, monitoring, on-call, Prometheus
Software Engineer with RD Station
Salary: $30.24K to $193.3K a year
Location: remote from
Tech stack: Kubernetes, Kubernetes, Docker, alerting, monitoring, logging, Datadog, tracing, Rollbar, CI/CD
Platform Engineer with Cerebras Systems
Salary: $63K to $401.5K a year
Location: based in the office in Sunnyvale, CA, USA
Tech stack: Kubernetes, Kubernetes, Compute, Cloud, Container, observability, K8s operators, TLS, security, mTLS
Discover more Kubernetes jobs on Kube Careers →
Code & tools
OpenEverest: Open-Source Database Platform for Kubernetes
github.com/openeverest
OpenEverest is an open-source cloud-native database platform for provisioning and managing PostgreSQL, MySQL, and MongoDB on any Kubernetes infrastructure, in the cloud or on-prem.
github.com/hortator-ai
Hortator lets AI agents spawn sub-agents at runtime, with each agent running in its own pod with budget caps, network policies, PII redaction, and capability inheritance so children can never escalate beyond their parent's permissions.
Kogaro – Kubernetes Configuration Hygiene Agent
github.com/topiaruss
Kogaro continuously validates Kubernetes config with 60+ checks across reference, resource, security, image, and network domains, catching silent failures before they impact production.
github.com/kubenetworks
KubeVPN is a tool that seamlessly connects to your Kubernetes cluster network, allowing you to access cluster resources from your local machine.
github.com/project-zot
zot is a production-ready vendor-neutral OCI image registry - images stored in OCI image format, distribution specification on-the-wire
Other interesting projects:
Upcoming Kubernetes events
Jun
26
Online conference organized by Platform Engineering.
This is a virtual event
This event requires an entrance fee
Jun
26
In-person conference organized by IEEE Technical Committee on Cloud Computing.
Location: Washington, D.C., USA
This event requires an entrance fee
Jun
27
Kubernetes Community Days Kuala Lumpur 2026
In-person conference organized by KCD Kuala Lumpur 2026.
Location: Kuala Lumpur, MY
This event requires an entrance fee
Use KUBEEVENTS to get 10% off
Jun
30
Cloud Native Summit Munich 2026
In-person conference organized by Cloud Native Summit Munich.
Location: Munich, DE
This event requires an entrance fee
Jul
2
In-person conference organized by Ebner Media Group.
Location: Mannheim, DE
This event requires an entrance fee
Jul
23
Online workshop organized by LearnKube.
This is a virtual event
This event requires an entrance fee
Kubernetes call for papers
12
days
Kubernetes Community Days São Paulo 2026
The Call For Paper is open until 6 July 2026 at UTC. More info →
Location: São Paulo, BR
In-person conference organized by KCD Brasil.
The conference starts on the 26 September 2026.
- Apply here
37
days
ContainerDays & AI Context Singapore
The Call For Paper is open until 31 July 2026 at UTC. More info →
Location: Singapore, SG
In-person conference organized by ContainerDays.
The conference starts on the 28 October 2026.
- Apply here
3
days
Kubernetes Community Days Washington DC 2026
The Call For Paper is open until 27 June 2026 at UTC. More info →
Location: Washington, DC, USA
In-person conference organized by KCD Washington DC.
The conference starts on the 15 September 2026.
- Apply here
22
days
Kubernetes Community Days Porto 2026
The Call For Paper is open until 16 July 2026 at UTC. More info →
Location: Porto, PT
In-person conference organized by KCD Porto.
The conference starts on the 20 November 2026.
- Apply here
5
days
Kubernetes Community Days Nigeria 2026
The Call For Paper is open until 29 June 2026 at UTC. More info →
Location: Lagos, NG
In-person conference organized by KCD Nigeria.
The conference starts on the 24 October 2026.
- Apply here
2
days
Kubernetes Community Days Korea 2026
The Call For Paper is open until 26 June 2026 at UTC. More info →
Location: Seoul, KR
In-person conference organized by KCD South Korea.
The conference starts on the 1 September 2026.
- Apply here
20
days
Kubernetes Community Days Gujarat 2026
The Call For Paper is open until 15 July 2026 at UTC. More info →
Location: Ahmedabad, IN
In-person conference organized by KCD Gujarat.
The conference starts on the 19 September 2026.
- Apply here
24
days
Kubernetes Community Days Sofia 2026
The Call For Paper is open until 18 July 2026 at UTC. More info →
Location: Sofia, BG
In-person conference organized by KCD Sofia.
The conference starts on the 29 September 2026.
- Apply here
68
days
The Call For Paper is open until 31 August 2026 at UTC. More info →
Location: Bucharest, RO
In-person conference organized by OmniOpenCon.
The conference starts on the 18 October 2026.
- Apply here
Enjoy this one.
See you next week!
— Gulcan