Ensure that the --experimental-encryption-provider-config argument is set as appropriate (API Server)

Encrypt etcd key-value store.etcd is a highly available key-value store used by Kubernetes deployments for persistent storage of all of its REST API objects. These objects are sensitive in nature and should be encrypted at rest to avoid any disclosures.

Risk Level: Low
Cloud Entity: Pods
CloudGuard Rule ID: D9.K8S.CRY.15
Covered by Spectral: Yes
Category: Compute


KubernetesPod where labels contain [value='kube-apiserver'] and namespace = 'kube-system' should have spec.containers with [parsedArgs contain [key like 'experimental-encryption-provider-config' ]]


Follow the Kubernetes documentation and configure a EncryptionConfig file.
Then, edit the API server pod specification file $apiserverconf on the
master node and set the --experimental-encryption-provider-config parameter
to the path of that file:


Pods are the smallest deployable units of computing that can be created and managed in Kubernetes.A Pod is a group of one or more containers (such as Docker containers), with shared storage/network, and a specification for how to run the containers.

Compliance Frameworks

  • CIS Kubernetes Benchmark v1.4.0
  • Kubernetes NIST.SP.800-190
  • Kubernetes v.1.13 CloudGuard Best Practices
  • Kubernetes v.1.14 CloudGuard Best Practices