Kubernetes Security Concepts

Internal

• Kubernetes Concepts

Transport Security

• https://kubernetes.io/docs/reference/access-authn-authz/#transport-security

Service Account

A service account provides an identity for processes that run in a pod. Pods that want to interact with the API Server will authenticate with a particular service account. By default, in absence of specific configuration, the pods will authenticate as the default service account in the namespace they are running in.

TODO:

• https://kubernetes.io/docs/tasks/configure-pod-container/configure-service-account/
• https://kubernetes.io/docs/reference/access-authn-authz/service-accounts-admin/

Default Service Account

Each namespace comes with a default service account:

apiVersion: v1
kind: ServiceAccount
metadata:
  name: default
  namespace: default
secrets:
- name: default-token-dddkl

Service Account Operations

• Details about the Namespace's Default Service Account

Role Based Access Control (RBAC)

In Kubernetes, granting a role to an application-specific service account is a best practice to ensure that the application is operated in a specified scope.

TODO:

• https://kubernetes.io/docs/reference/access-authn-authz/rbac/#service-account-permissions
• https://docs.bitnami.com/kubernetes/how-to/configure-rbac-in-your-kubernetes-cluster/

RBAC Operations

• Assigning a Cluster Role to a Service Account