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Kubernetes Security

Kubernetes Security

Kubernetes Security

Kubernetes Security

Kubernetes Security

Kubernetes Security

Kubernetes Security

Kubernetes Security

Kubernetes Security

Kubernetes Security Challenges

Kubernetes introduces a large attack surface: the API server, etcd, kubelets, and container runtime all need protection.

RBAC Configuration

Implement least-privilege RBAC:

apiVersion: rbac.authorization.k8s.io/v1

kind: Role

metadata:

namespace: development

name: pod-reader

rules:

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\- apiGroups: [""]

resources: ["pods", "pods/log"]

verbs: ["get", "watch", "list"]

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\---

apiVersion: rbac.authorization.k8s.io/v1

kind: RoleBinding

metadata:

namespace: development

name: read-pods

subjects:

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\- kind: ServiceAccount

name: developer-sa

namespace: development

roleRef:

kind: Role

name: pod-reader

apiGroup: rbac.authorization.k8s.io

ClusterRole for cluster-wide resources:

apiVersion: rbac.authorization.k8s.io/v1

kind: ClusterRole

metadata:

name: metrics-reader

rules:

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\- nonResourceURLs: ["/metrics"]

verbs: ["get"]

Pod Security Standards

Enforce Pod Security Standards with admission controllers:

Pod Security Admission

apiVersion: pods-security.admission.config.k8s.io/v1

kind: PodSecurityConfiguration

defaults:

enforce: "restricted"

enforce-version: "latest"

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