Learn Kubernetes Weekly issue 162 · 17 Dec 2025

Kubernetes Python Moment, Migrating from Cloud, DRA Consumable Capacity, APIs with Kong Ingress Controller, Upstream Connect Errors

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Articles

  1. Kubernetes Needs Its Python Moment

    medium.com

    This article explains why Kubernetes needs a higher-level, intent-based layer so you can ship apps without writing huge YAML manifests.

    It also highlights approaches like KubeVela, OpenChoreo, and Score.

  2. The Ultimate Guide to Docker Build Cache

    depot.dev

    Master Docker build cache optimization with Depot's comprehensive guide.

    Learn layer caching strategies, BuildKit features, and cache mounting techniques to dramatically speed up your container builds and CI/CD pipelines.

    sponsored

  3. Migrating Kubernetes out of the Big Cloud Providers

    medium.com

    This article shares how the author moved workloads off the big managed Kubernetes clouds and onto cheaper VM providers like Hetzner, using a lighter control-plane setup.

  4. Kubernetes v1.34: DRA Consumable Capacity

    kubernetes.io

    This article explains that with Kubernetes v1.34, Dynamic Resource Allocation (DRA) adds consumable capacity, which lets devices share things like GPU memory or bandwidth in smaller, flexible chunks instead of giving everything to one pod.

  5. Managing APIs in Kubernetes with Kong Ingress Controller

    medium.com

    This article shows how to run Kong as an API gateway inside Kubernetes and expose it through Ingress.

  6. Fixing Upstream Connect Errors (Docker, Kubernetes, Spring Boot & More)

    dev.to

    This article explains what an upstream connect error is and why proxies or load balancers fail to reach a backend.

    It also shows common causes in Docker, Kubernetes and Spring Boot, such as wrong hostnames, network isolation and bad service selectors.

Articles worth checking out:

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Tutorials

  1. Depot Container Builds

    depot.dev

    This tutorial walks you step by step through building Docker images remotely by replacing docker build with depot build, using remote BuildKit with persistent caching, plus multi-platform support and CI integration examples.

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  2. Building AWS S3-Style Storage and Automated Static Site Deployment in Kubernetes

    davidwoglo.hashnode.dev

    This tutorial walks you through how to mimic S3-like object storage inside Kubernetes and automate static website deployments using that storage, letting you host static sites without relying on external S3.

  3. Secure your Kubernetes Cluster with Kong and Keycloak

    medium.com

    This article shows how to use the Kong OIDC plugin together with Keycloak to secure cluster services and HTTP routes at the API gateway level.

  4. Unpacking the cluster networking for Amazon EKS hybrid nodes

    repost.aws

    This tutorial walks you through how to set up networking for a cloud-to-on-premises hybrid Amazon EKS Hybrid Nodes cluster, covering compatible CNIs, CIDR planning, routing, and load-balancer options for hybrid workloads.

Kubernetes jobs

    • Platform Engineer with AMERICAN SYSTEMS

    • Salary: $155.7K to $260K a year

    • Location: remote from the United States of America

    • Tech stack: Kubernetes, Ansible, Shell, Python, Gitlab, Helm, Rancher

    • Systems Performance Engineer with Datadog

    • Salary: $187K to $240K a year

    • Location: based in the office (and remote from home) in Boston, MA / New York, NY, USA

    • Tech stack: Kubernetes, Datadog, containerd, AWS, Go, Javascript, Rust, C

    • Platform Engineer with Peraton

    • Salary: $112K to $179K a year

    • Location: based in the office in Washington, D.C, USA

    • Tech stack: Kubernetes, Grafana, AWS, Terraform, Shell, Python, Prometheus, Helm, ArgoCD

    • DevSecOps Engineer with Corelight

    • Salary: $221K to $268K a year

    • Location: remote from North America

    • Tech stack: Kubernetes, Go, Splunk

    • DevOps Engineer with Corelight

    • Salary: $158K to $198K a year

    • Location: remote from North America

    • Tech stack: Kubernetes, Grafana, AWS, Azure, GCP, Docker, Terraform, Pulumi, Ansible, Puppet

Discover more Kubernetes jobs on Kube Careers →

Code & tools

  1. Robusta KRR: resource optimizer

    github.com/robusta-dev

    Kubernetes Resource Recommender is a CLI tool for optimizing resource allocation in Kubernetes clusters.

    It gathers pod usage data from Prometheus and recommends requests and limits for CPU and memory.

    This reduces costs and improves performance.

  2. jthomperoo/predictive-horizontal-pod-autoscaler

    github.com/jthomperoo

    Predictive Horizontal Pod Autoscalers (PHPAs) are Horizontal Pod Autoscalers (HPAs) with extra predictive capabilities baked in.

    PHPAs allow you to apply statistical models to the results of HPA calculations to make proactive scaling decisions.

  3. k3s-io/kine

    github.com/k3s-io

    Kine is an etcdshim that translates etcd API to SQLite, Postgres, Mysql, and dqlite.

  4. kubetail: multi-pod logs

    github.com/johanhaleby

    Kubetail is a bash script that enables you to aggregate (tail/follow) logs from multiple pods into one stream.

    This is equivalent to running kubectl logs -f, but for multiple pods.

  5. k3k: nested k3s

    github.com/rancher

    k3k is a Kubernetes in Kubernetes tool that provides a way to run multiple embedded isolated k3s clusters on your kubernetes cluster.

Other interesting projects:

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Upcoming Kubernetes events

  1. Dec

    17

    Automating Kubernetes Rightsizing and Container-Level Cost Allocation

    Online webinar organized by StormForge.

    • This is a virtual event

    • This is a free event.

  2. Dec

    18

    Gateway API: The new normal in Cloud Native Networking

    In-person meetup organized by Cloud Native Santo Domingo.

    • Location: Santo Domingo, DO

    • This is a free event.

  3. Dec

    19

    Live Tailing Kubernetes Logs with Gonzo: Open Source TUI for Real-Time Insight

    In-person meetup organized by Cloud Native Dallas.

    • Location: Dallas, TX, USA

    • This is a free event.

  4. Dec

    19

    Certified Kubernetes AI Conformance Program: v1.0 Requirements & v2.0 Roadmap

    Online meetup organized by Artificial Intelligence Technical Community Group.

    • This is a virtual event

    • This is a free event.

  5. Dec

    19

    Preparing for the Retirement of Ingress NGINX: Practical Migration Strategies for Modern Kubernetes Teams

    Online meetup organized by Cloud Native Lagos.

    • This is a virtual event

    • This is a free event.

  6. Jan

    26

    Advanced Kubernetes course (London)

    In-person workshop organized by LearnKube.

    • Location: London, GB

    • This event requires an entrance fee

Discover more Kubernetes events on Kube Events →

Thanks to our sponsors who make Kube Today possible

  • LearnKube
  • Akamai
  • Fairwinds
  • Densify
Find out more about being a sponsor →

Kubernetes call for papers

  1. 59

    days

    CfgMgmtCamp 2026 Ghent

    The Call For Paper is open until 15 February 2026 at UTC. More info →
    • Location: Ghent, BE

    • In-person conference organized by CfgMgmtCamp.

    • The conference starts on the 4 February 2026.

    • Apply here
  2. 72

    days

    Container Days Hamburg 2026

    The Call For Paper is open until 28 February 2026 at UTC. More info →
    • Location: Hamburg, DE

    • In-person conference organized by Container Days.

    • The conference starts on the 4 September 2026.

    • Apply here
  3. 78

    days

    Cloud Native Days Italy 2026

    The Call For Paper is open until 6 March 2026 at UTC. More info →
    • Location: Bologna, IT

    • In-person conference organized by CND Italy.

    • The conference starts on the 18 May 2026.

    • Apply here
  4. 6

    days

    Kubernetes Community Days Guadalajara 2026

    The Call For Paper is open until 24 December 2025 at UTC. More info →
    • Location: Guadalajara, MX

    • In-person conference organized by KCD Guadalajara.

    • The conference starts on the 28 February 2026.

    • Apply here
  5. 45

    days

    KubeCon + CloudNativeCon India 2026

    The Call For Paper is open until 2 February 2026 at UTC. More info →
    • Location: Mumbai, IN

    • In-person conference organized by CNCF.

    • The conference starts on the 19 June 2026.

    • Apply here
  6. 46

    days

    Web Days Convention

    The Call For Paper is open until 2 February 2026 at UTC. More info →
    • Location: Aix-en-Provence, FR

    • In-person conference organized by Web Days.

    • The conference starts on the 6 February 2026.

    • Apply here
  7. 32

    days

    Devopsdays Atlanta

    The Call For Paper is open until 19 January 2026 at UTC. More info →
    • Location: Atlanta, GA, USA

    • In-person conference organized by Devopsdays.

    • The conference starts on the 21 April 2026.

    • Apply here
  8. 44

    days

    Devopsdays Copenhagen

    The Call For Paper is open until 31 January 2026 at UTC. More info →
    • Location: Copenhagen, DK

    • In-person conference organized by Devopsdays.

    • The conference starts on the 28 April 2026.

    • Apply here
  9. 3

    days

    Voxxed Days Bucharest

    The Call For Paper is open until 21 December 2025 at UTC. More info →
    • Location: Bucharest, RO

    • In-person conference organized by Incremental Development.

    • The conference starts on the 29 April 2026.

    • Apply here

Until next time!

— Gulcan

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