HPC Learning Hub

Browser-based trainers for Kubernetes, Slurm, Spack & Apptainer. No cluster needed.

[HPC Learning Hub @hpclearninghub]

Free KCNA practice quiz — now live 🎓

All 5 CNCF exam domains, instant explanations, no signup, runs in your browser.

Completes the Kubestronaut path on KT: KCNA + CKA + CKAD + CKS — no cluster needed.

https://t.co/XkpUeqa7pN

[HPC Learning Hub @hpclearninghub]

https://t.co/nlg9r6Rl4M

[HPC Learning Hub @hpclearninghub]

🔐 New on KubernetesTrainer: a full CKS track. 30 hands-on security scenarios in your browser — no cluster, no setup.

Pod Security, AppArmor, seccomp, RBAC, OPA Gatekeeper, audit logging, encryption at rest.

CKA + CKAD + CKS now live 👇

[HPC Learning Hub @hpclearninghub]

https://t.co/UhJiybulOL

[HPC Learning Hub @hpclearninghub]

Shipped 6 new CKA scenarios on KubernetesTrainer — Jobs, HPA, ConfigMaps, Secrets, scale-to-zero recovery & RBAC.

Real kubectl in your browser, graded on actual cluster state, not on typing the right command.

33 scenarios · 10 free
#CKA

[HPC Learning Hub @hpclearninghub]

https://t.co/qBRqUiHAEx

[HPC Learning Hub @hpclearninghub]

Prepping for the CKA? Skip the cluster setup.

KubernetesTrainer is a browser terminal that emulates a real K8s v1.36 node. Instant, mobile, free to start.

Troubleshooting is 30% of the exam — so break a cluster and fix it for real. No shortcuts.

kubectl in 5 seconds 👇

[HPC Learning Hub @hpclearninghub]

🐛 New on KubernetesTrainer: Break the Cluster mode.

Click → a real CKA bug appears. Fix it with real kubectl set image, patch, scale, taint, create role. 20 scenarios across all 5 CKA exam domains.

Beat the clock. In your browser. No setup.

https://t.co/sRSrrKYBlu #CKA

[HPC Learning Hub @hpclearninghub]

Reactive log streaming on KubernetesTrainer — kubelet.log and containerd.log react to your real kubectl commands:

tail -f /var/log/kubelet.log
kubectl scale deployment web --replicas=8

Real correlation in your browser. Free tier today.

https://t.co/sRSrrKYBlu

#CKA #Kubernetes

[HPC Learning Hub @hpclearninghub]

https://t.co/qBRqUiHAEx update 🚀

New: timed Mock Exam (13 tasks, 2h, 66% to pass — like the real CKA)

Plus 23 hands-on scenarios, full kubectl/helm/vim, ~90% tab completion.

Free tier: 10 scenarios, no signup.

https://t.co/sRSrrKYBlu

#kubernetes #cka

[HPC Learning Hub @hpclearninghub]

New on https://t.co/qBRqUiHAEx: full CKA practice path 🚀

23 hands-on scenarios, 10 free + 13 premium. Multistep workflows that match real exam tasks.

Gateway API ✓ etcd backup/restore ✓ kubeadm upgrade ✓ RBAC chains ✓

2967 automated tests verify every command.

[HPC Learning Hub @hpclearninghub]

Kubernetes v1.36 "Haru" is out!

https://t.co/qBRqUiHAEx now has full support:
→ User Namespaces GA (hostUsers: false)
→ MutatingAdmissionPolicy GA
→ VolumeGroupSnapshot GA
→ kubectl diff --show-secret

Browser-based. Free tier.
https://t.co/UhJiybulOL

[HPC Learning Hub @hpclearninghub]

Most K8s training platforms are stuck on v1.29. That's EOL.

https://t.co/qBRqUiHAEx just upgraded to v1.35.3 + Helm 4.1.3 — what production actually runs today.

Practice in-place pod resize, kuberc, KYAML, SSA, OCI digests — in a browser.

https://t.co/UhJiybulOL

[HPC Learning Hub @hpclearninghub]

Node maintenance in Kubernetes:

1. cordon — stop new pods landing there
2. drain — evict existing pods gracefully
3. do your maintenance
4. uncordon — bring it back

kubectl cordon worker-2
kubectl drain worker-2 --ignore-daemonsets
kubectl uncordon worker-2

#Kubernetes

[HPC Learning Hub @hpclearninghub]

Built four browser-based terminal simulators for HPC
and cloud-native infrastructure.

kubectl, Helm, Slurm, Spack, Apptainer — all working
in your browser. No cluster, no install.

https://t.co/1dUP6Fry8X

#Kubernetes #HPC #DevOps #CKA #kubectl