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3752fd0386
- Kyverno 3.3.4 via Helm (HA config: 3 admission, 2 background replicas) - Validation policies: - disallow-privileged-containers (Enforce) - require-resource-limits (Enforce) - require-labels (Audit - standard k8s labels) - require-run-as-non-root (Audit) - disallow-latest-tag (Enforce - GitOps reproducibility) - Mutating policy: - add-default-securitycontext (seccomp, drop caps, read-only fs) - System namespaces excluded (kube-system, kyverno, istio-system) - Auto-discovered by ArgoCD ApplicationSet Reference: CIS Kubernetes Benchmark, Pod Security Standards
55 lines
1.8 KiB
YAML
55 lines
1.8 KiB
YAML
# infrastructure/kyverno/policies/require-non-root.yaml
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# Requires containers to run as non-root user
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# Security baseline: CIS Benchmark 5.2.6
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apiVersion: kyverno.io/v1
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kind: ClusterPolicy
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metadata:
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name: require-run-as-non-root
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annotations:
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policies.kyverno.io/title: Require Run As Non-Root
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policies.kyverno.io/category: Pod Security Standards (Restricted)
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policies.kyverno.io/severity: high
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policies.kyverno.io/subject: Pod
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policies.kyverno.io/description: >-
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Running as root inside a container is a security risk. If a
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container breakout occurs, root in the container could become
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root on the host. This policy requires containers to run as
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a non-root user.
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spec:
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validationFailureAction: Audit # Audit first, Enforce after baseline
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background: true
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rules:
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- name: run-as-non-root
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match:
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any:
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- resources:
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kinds:
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- Pod
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exclude:
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any:
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- resources:
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namespaces:
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- kube-system
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- kyverno
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- istio-system
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validate:
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message: "Containers must run as non-root. Set runAsNonRoot: true or specify a non-root runAsUser."
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anyPattern:
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# Pattern 1: Pod-level runAsNonRoot
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- spec:
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securityContext:
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runAsNonRoot: true
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# Pattern 2: Container-level runAsNonRoot
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- spec:
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containers:
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- securityContext:
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runAsNonRoot: true
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# Pattern 3: Explicit non-root UID (>= 1000)
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- spec:
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securityContext:
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runAsUser: ">999"
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- spec:
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containers:
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- securityContext:
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runAsUser: ">999"
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