CKA

Security Contexts

백셀건전지 2022. 2. 10. 18:25

https://kubernetes.io/docs/tasks/configure-pod-container/security-context/

 

Configure a Security Context for a Pod or Container

A security context defines privilege and access control settings for a Pod or Container. Security context settings include, but are not limited to: Discretionary Access Control: Permission to access an object, like a file, is based on user ID (UID) and gro

kubernetes.io

apiVersion: v1
kind: Pod
metadata:
  name: security-context-demo
spec:
  volumes:
  - name: sec-ctx-vol
    emptyDir: {}
  containers:
  - name: sec-ctx-demo
    image: busybox
    command: [ "sh", "-c", "sleep 1h" ]
    volumeMounts:
    - name: sec-ctx-vol
      mountPath: /data/demo
    securityContext:
      runAsUser: 1000
      capabilities:
        add: ["NET_ADMIN", "SYS_TIME"]

- 아래의 Pod manifest는 sidecar container는 1001번 user로, web container는 1002번 user로 실행된다.

apiVersion: v1
kind: Pod
metadata:
  name: multi-pod
spec:
  securityContext:
    runAsUser: 1001
  containers:
  -  image: ubuntu
     name: web
     command: ["sleep", "5000"]
     securityContext:
      runAsUser: 1002

  -  image: ubuntu
     name: sidecar
     command: ["sleep", "5000"]

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