Hands-on Lab·Certified Kubernetes Security Specialist
Static Analysis of Kubernetes Manifests
Admission control refuses a bad workload at the last possible moment. Static analysis refuses it in the pull request, and it needs no cluster, no registry and no network. This guide runs it on a bad manifest, fixes it, and makes it a gate.
Supply Chain Security Guide 30 of 40 Intermediate
- Kubernetesapiserver v1.36.4, kubelet v1.36.3
- Runtimecontainerd 2.2.6
- CNICilium 1.18.1 - tunnel/VXLAN, with Hubble relay and UI
- Host OSUbuntu 26.04 LTS, kernel 7.0.0-29
- Built withkubeadm v1.36.3 - podSubnet 10.244.0.0/16, serviceSubnet 10.96.0.0/12
- TimeAbout 15 min
- Reviewed25 August 2026
Written against the versions above. `trivy config` runs the same checks that other tools call KSV rules - kubesec and kube-linter cover similar ground. The tool matters less than having one in the pipeline.
| Server Name | IP Address | OS | Roles | CPU | RAM | HDD |
|---|---|---|---|---|---|---|
| CKA6001 | 192.168.0.46 | Ubuntu 26.04 LTS | Control Plane Node (tainted NoSchedule) | 2 Core | 4 GB | 50 GB |
| CKA6001-NODE01 | 192.168.0.47 | Ubuntu 26.04 LTS | Worker Node | 2 Core | 4 GB | 50 GB |
| CKA6001-NODE02 | 192.168.0.48 | Ubuntu 26.04 LTS | Worker Node | 2 Core | 4 GB | 50 GB |
Before you start
- guide 19 - the fields this checks for.
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A manifest nobody should merge
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Fix it and run the same check
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Make it a gate