Kube Builders
@kube.builders
News and links on building infrastructure and Kubernetes clusters curated by the @Learnk8s.io team
More K8s news, events, jobs → https://kube.today
More K8s news, events, jobs → https://kube.today
Harvester turns bare-metal servers into a hyperconverged platform combining VMs and containers using Kubernetes, KubeVirt, Longhorn, and Rancher
It supports live migration and distributed storage and is built for core-to-edge ops
➜ https://ku.bz/0-LL0mwyj
It supports live migration and distributed storage and is built for core-to-edge ops
➜ https://ku.bz/0-LL0mwyj
September 21, 2026 at 3:31 PM
Harvester turns bare-metal servers into a hyperconverged platform combining VMs and containers using Kubernetes, KubeVirt, Longhorn, and Rancher
It supports live migration and distributed storage and is built for core-to-edge ops
➜ https://ku.bz/0-LL0mwyj
It supports live migration and distributed storage and is built for core-to-edge ops
➜ https://ku.bz/0-LL0mwyj
Goldpinger is a monitoring tool that runs as a DaemonSet and makes inter-pod calls to test connectivity
➤ https://ku.bz/D_P9JG76K
➤ https://ku.bz/D_P9JG76K
September 20, 2026 at 2:46 PM
Goldpinger is a monitoring tool that runs as a DaemonSet and makes inter-pod calls to test connectivity
➤ https://ku.bz/D_P9JG76K
➤ https://ku.bz/D_P9JG76K
This tutorial shows how to run Azure DevOps agents on AKS so that KEDA spins up a fresh agent pod whenever the pipeline queue grows and removes it when the job is done
➜ https://ku.bz/y7Kjp1WvS
➜ https://ku.bz/y7Kjp1WvS
September 18, 2026 at 3:31 PM
This tutorial shows how to run Azure DevOps agents on AKS so that KEDA spins up a fresh agent pod whenever the pipeline queue grows and removes it when the job is done
➜ https://ku.bz/y7Kjp1WvS
➜ https://ku.bz/y7Kjp1WvS
This article tells how a GPU passthrough on a k3s worker VM put a whole Proxmox host into a boot loop, and how masking the guest-start service at the GRUB prompt rescued it
➜ https://ku.bz/79pRFd6Zm
➜ https://ku.bz/79pRFd6Zm
September 15, 2026 at 5:56 PM
This article tells how a GPU passthrough on a k3s worker VM put a whole Proxmox host into a boot loop, and how masking the guest-start service at the GRUB prompt rescued it
➜ https://ku.bz/79pRFd6Zm
➜ https://ku.bz/79pRFd6Zm
This article opens up Xatastor, the storage system Xata built for millions of Postgres databases, explaining why they chose ZFS zvols over NVMe-oF instead of Ceph or Longhorn, and how their Kubernetes operator drives it
➤ https://ku.bz/LcBp9Pl1h
➤ https://ku.bz/LcBp9Pl1h
September 14, 2026 at 3:21 PM
This article opens up Xatastor, the storage system Xata built for millions of Postgres databases, explaining why they chose ZFS zvols over NVMe-oF instead of Ceph or Longhorn, and how their Kubernetes operator drives it
➤ https://ku.bz/LcBp9Pl1h
➤ https://ku.bz/LcBp9Pl1h
IncidentFox automates incident investigation with AI agents using 178+ tools for Kubernetes, AWS, and Grafana, featuring RAPTOR knowledge base for runbooks, alert correlation reducing noise by 85-95%, and Slack/GitHub/PagerDuty integrations
➤ https://ku.bz/r_Q9FFtc0
➤ https://ku.bz/r_Q9FFtc0
September 11, 2026 at 3:46 PM
IncidentFox automates incident investigation with AI agents using 178+ tools for Kubernetes, AWS, and Grafana, featuring RAPTOR knowledge base for runbooks, alert correlation reducing noise by 85-95%, and Slack/GitHub/PagerDuty integrations
➤ https://ku.bz/r_Q9FFtc0
➤ https://ku.bz/r_Q9FFtc0
This article explains why EKS sends most pod-to-pod traffic across availability zones and how the Kubernetes 1.35 trafficDistribution: PreferSameZone setting keeps it local and cuts the transfer bill
➜ https://ku.bz/rTP8hwDVQ
➜ https://ku.bz/rTP8hwDVQ
September 11, 2026 at 3:31 PM
This article explains why EKS sends most pod-to-pod traffic across availability zones and how the Kubernetes 1.35 trafficDistribution: PreferSameZone setting keeps it local and cuts the transfer bill
➜ https://ku.bz/rTP8hwDVQ
➜ https://ku.bz/rTP8hwDVQ
This case study explains how an ECS workload was migrated to EKS across two AWS regions with zero production downtime
It covers KEDA autoscaling, HashiCorp Vault, IRSA, disaster recovery, and a coordinated production cutover
➤ https://ku.bz/VDHmS189t
It covers KEDA autoscaling, HashiCorp Vault, IRSA, disaster recovery, and a coordinated production cutover
➤ https://ku.bz/VDHmS189t
September 10, 2026 at 4:11 PM
This case study explains how an ECS workload was migrated to EKS across two AWS regions with zero production downtime
It covers KEDA autoscaling, HashiCorp Vault, IRSA, disaster recovery, and a coordinated production cutover
➤ https://ku.bz/VDHmS189t
It covers KEDA autoscaling, HashiCorp Vault, IRSA, disaster recovery, and a coordinated production cutover
➤ https://ku.bz/VDHmS189t
NetObserv deploys an eBPF agent on every node to capture network flows, enrich them with Kubernetes metadata, and export to Loki, Prometheus, Kafka, or IPFIX — with a web console showing topology, raw flows, and traffic metrics
➜ https://ku.bz/STLN1Tks5
➜ https://ku.bz/STLN1Tks5
September 10, 2026 at 3:51 PM
NetObserv deploys an eBPF agent on every node to capture network flows, enrich them with Kubernetes metadata, and export to Loki, Prometheus, Kafka, or IPFIX — with a web console showing topology, raw flows, and traffic metrics
➜ https://ku.bz/STLN1Tks5
➜ https://ku.bz/STLN1Tks5
System Upgrade Controller upgrades your nodes from inside the cluster: you describe the change in a Plan resource and it runs the upgrade job on each node, cordoning and draining when you ask it to
➜ https://ku.bz/GyCBX9mcG
➜ https://ku.bz/GyCBX9mcG
September 8, 2026 at 3:51 PM
System Upgrade Controller upgrades your nodes from inside the cluster: you describe the change in a Plan resource and it runs the upgrade job on each node, cordoning and draining when you ask it to
➜ https://ku.bz/GyCBX9mcG
➜ https://ku.bz/GyCBX9mcG
MAAS (Metal-as-a-Service) is a production-grade tool that automates provisioning, network config, and OS installs (Ubuntu, CentOS, Windows, ESXi) across physical servers using PXE, IPAM, and full API-driven workflows
➤ https://ku.bz/9z6rg3_cZ
➤ https://ku.bz/9z6rg3_cZ
September 7, 2026 at 3:46 PM
MAAS (Metal-as-a-Service) is a production-grade tool that automates provisioning, network config, and OS installs (Ubuntu, CentOS, Windows, ESXi) across physical servers using PXE, IPAM, and full API-driven workflows
➤ https://ku.bz/9z6rg3_cZ
➤ https://ku.bz/9z6rg3_cZ
This tutorial teaches how to build a production-like Kubernetes cluster on bare metal using Hyper-V VMs with MetalLB, Ingress NGINX, Longhorn storage, and HPA
➤ https://ku.bz/lgLkmqb-9
➤ https://ku.bz/lgLkmqb-9
September 4, 2026 at 3:46 PM
This tutorial teaches how to build a production-like Kubernetes cluster on bare metal using Hyper-V VMs with MetalLB, Ingress NGINX, Longhorn storage, and HPA
➤ https://ku.bz/lgLkmqb-9
➤ https://ku.bz/lgLkmqb-9
Jarvis is a self-hosted web UI for Alertmanager where alerts are stored in a database, and people can claim and comment on them so the team sees who is handling what
➜ https://ku.bz/zYpq6w0-5
➜ https://ku.bz/zYpq6w0-5
September 4, 2026 at 3:31 PM
Jarvis is a self-hosted web UI for Alertmanager where alerts are stored in a database, and people can claim and comment on them so the team sees who is handling what
➜ https://ku.bz/zYpq6w0-5
➜ https://ku.bz/zYpq6w0-5
This tutorial shows how to build a local Kubernetes lab in Vagrant where MetalLB actually works, by giving each VM both a host-only and a bridged network
➜ https://ku.bz/lynZc_9xt
➜ https://ku.bz/lynZc_9xt
September 3, 2026 at 4:11 PM
This tutorial shows how to build a local Kubernetes lab in Vagrant where MetalLB actually works, by giving each VM both a host-only and a bridged network
➜ https://ku.bz/lynZc_9xt
➜ https://ku.bz/lynZc_9xt
This article shows how to set up logging on a shared GKE cluster so every team only sees the logs from their own namespaces, while the platform team still sees everything
➜ https://ku.bz/CnRnrXnVV
➜ https://ku.bz/CnRnrXnVV
August 31, 2026 at 3:31 PM
This article shows how to set up logging on a shared GKE cluster so every team only sees the logs from their own namespaces, while the platform team still sees everything
➜ https://ku.bz/CnRnrXnVV
➜ https://ku.bz/CnRnrXnVV
This tutorial shows how to automatically create and scale GitHub Actions runners on Kubernetes using Argo CD ApplicationSets that read config files from Git and deploy runner pods with custom resources and autoscaling
➤ https://ku.bz/0h2gRcqLb
➤ https://ku.bz/0h2gRcqLb
August 30, 2026 at 2:46 PM
This tutorial shows how to automatically create and scale GitHub Actions runners on Kubernetes using Argo CD ApplicationSets that read config files from Git and deploy runner pods with custom resources and autoscaling
➤ https://ku.bz/0h2gRcqLb
➤ https://ku.bz/0h2gRcqLb
KubeCM is a command-line tool that simplifies Kubernetes context management by allowing users to switch between clusters and namespaces with a single command
➤ https://ku.bz/Xs-l4WTH2
➤ https://ku.bz/Xs-l4WTH2
August 29, 2026 at 2:41 PM
KubeCM is a command-line tool that simplifies Kubernetes context management by allowing users to switch between clusters and namespaces with a single command
➤ https://ku.bz/Xs-l4WTH2
➤ https://ku.bz/Xs-l4WTH2
Rūsternetes is a from-scratch Rust reimplementation of Kubernetes with its own:
- API server,
- scheduler,
- controller manager,
- kubelet,
- kube-proxy,
- controllers,
- and conformance tests
➤ https://ku.bz/yjgm-qPVh
- API server,
- scheduler,
- controller manager,
- kubelet,
- kube-proxy,
- controllers,
- and conformance tests
➤ https://ku.bz/yjgm-qPVh
August 27, 2026 at 3:46 PM
Rūsternetes is a from-scratch Rust reimplementation of Kubernetes with its own:
- API server,
- scheduler,
- controller manager,
- kubelet,
- kube-proxy,
- controllers,
- and conformance tests
➤ https://ku.bz/yjgm-qPVh
- API server,
- scheduler,
- controller manager,
- kubelet,
- kube-proxy,
- controllers,
- and conformance tests
➤ https://ku.bz/yjgm-qPVh
l9gpu is a GPU telemetry agent that emits OpenTelemetry metrics with workload attribution built in, so you can see which pod, team or Slurm job is using each NVIDIA, AMD or Intel GPU
➜ https://ku.bz/JCtj79Xms
➜ https://ku.bz/JCtj79Xms
August 26, 2026 at 3:31 PM
l9gpu is a GPU telemetry agent that emits OpenTelemetry metrics with workload attribution built in, so you can see which pod, team or Slurm job is using each NVIDIA, AMD or Intel GPU
➜ https://ku.bz/JCtj79Xms
➜ https://ku.bz/JCtj79Xms
This case study shows how one team ran LiteLLM as a single gateway to many model providers on EKS, kept it highly available, and managed the whole thing with ArgoCD
➜ https://ku.bz/YKJG9_NH_
➜ https://ku.bz/YKJG9_NH_
August 25, 2026 at 3:31 PM
This case study shows how one team ran LiteLLM as a single gateway to many model providers on EKS, kept it highly available, and managed the whole thing with ArgoCD
➜ https://ku.bz/YKJG9_NH_
➜ https://ku.bz/YKJG9_NH_
This article explains how to control runaway GPU spend in Kubernetes by adding taints, quotas, labels, Prometheus rules, and admission controls so teams can see who is using expensive GPU workloads and why
➤ https://ku.bz/6cFxnhHGb
➤ https://ku.bz/6cFxnhHGb
August 22, 2026 at 2:41 PM
This article explains how to control runaway GPU spend in Kubernetes by adding taints, quotas, labels, Prometheus rules, and admission controls so teams can see who is using expensive GPU workloads and why
➤ https://ku.bz/6cFxnhHGb
➤ https://ku.bz/6cFxnhHGb
This tutorial explains how to build a Kubernetes operator that automatically manages Synology DSM reverse proxy rules from annotated Services, Ingresses, and Argo CD Applications
➤ https://ku.bz/P015Vw0wn
➤ https://ku.bz/P015Vw0wn
August 20, 2026 at 3:41 PM
This tutorial explains how to build a Kubernetes operator that automatically manages Synology DSM reverse proxy rules from annotated Services, Ingresses, and Argo CD Applications
➤ https://ku.bz/P015Vw0wn
➤ https://ku.bz/P015Vw0wn
Goldpinger is a monitoring tool that runs as a DaemonSet and makes inter-pod calls to test connectivity
➜ https://ku.bz/D_P9JG76K
➜ https://ku.bz/D_P9JG76K
August 20, 2026 at 3:26 PM
Goldpinger is a monitoring tool that runs as a DaemonSet and makes inter-pod calls to test connectivity
➜ https://ku.bz/D_P9JG76K
➜ https://ku.bz/D_P9JG76K
SloK lets teams define SLOs as Kubernetes custom resources, generate Prometheus rules, track error budgets, backtest SLO YAML, and view reliability trends in a dashboard
➤ https://ku.bz/XwCd1mhXc
➤ https://ku.bz/XwCd1mhXc
August 14, 2026 at 3:46 PM
SloK lets teams define SLOs as Kubernetes custom resources, generate Prometheus rules, track error budgets, backtest SLO YAML, and view reliability trends in a dashboard
➤ https://ku.bz/XwCd1mhXc
➤ https://ku.bz/XwCd1mhXc
This article opens up Xatastor, the storage system Xata built for millions of Postgres databases, explaining why they chose ZFS zvols over NVMe-oF instead of Ceph or Longhorn, and how their Kubernetes operator drives it
➜ https://ku.bz/LcBp9Pl1h
➜ https://ku.bz/LcBp9Pl1h
August 14, 2026 at 3:31 PM
This article opens up Xatastor, the storage system Xata built for millions of Postgres databases, explaining why they chose ZFS zvols over NVMe-oF instead of Ceph or Longhorn, and how their Kubernetes operator drives it
➜ https://ku.bz/LcBp9Pl1h
➜ https://ku.bz/LcBp9Pl1h