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

1. 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

2. Running MySQL on Kubernetes

   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

3. 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.

5. Container-aware GOMAXPROCS

   go.dev

   This article explains how Go 1.25 introduces automatic GOMAXPROCS configuration based on container CPU limits to prevent throttling in Kubernetes environments.

Tutorials

1. 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

4. 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.

Kubernetes jobs

1. • 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

2. • 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

3. • 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

4. • 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

5. • 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

2. Hortator

   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.

3. 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.

4. KubeVPN: Kubernetes VPN

   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.

5. Zot: OCI registry

   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:

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Upcoming Kubernetes events

1. PlatformCON

   Online conference organized by Platform Engineering.

   • This is a virtual event

   • This event requires an entrance fee

2. IEEE Cloud Summit 2026

   In-person conference organized by IEEE Technical Committee on Cloud Computing.

   • Location: Washington, D.C., USA

   • This event requires an entrance fee

5. DWX

   In-person conference organized by Ebner Media Group.

   • Location: Mannheim, DE

   • This event requires an entrance fee

Discover more Kubernetes events on Kube Events →

Kubernetes call for papers

2. 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

6. 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

9. OmniOpenCon 2026

   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

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