Block Pod Exec by Namespace Name

 1apiVersion: kyverno.io/v1
 2kind: ClusterPolicy
 3metadata:
 4  name: deny-exec-by-namespace-name
 5  annotations:
 6    policies.kyverno.io/title: Block Pod Exec by Namespace Name
 7    policies.kyverno.io/category: Sample
 8    policies.kyverno.io/minversion: 1.6.0
 9    policies.kyverno.io/subject: Pod
10    policies.kyverno.io/description: >-
11      The `exec` command may be used to gain shell access, or run other commands, in a Pod's container. While this can
12      be useful for troubleshooting purposes, it could represent an attack vector and is discouraged.
13      This policy blocks Pod exec commands to Pods in a Namespace called `pci`.      
14spec:
15  validationFailureAction: enforce
16  background: false
17  rules:
18  - name: deny-exec-ns-pci
19    match:
20      any:
21      - resources:
22          kinds:
23          - PodExecOptions
24    preconditions:
25      all:
26      - key: "{{ request.operation || 'BACKGROUND' }}"
27        operator: Equals
28        value: CONNECT
29    validate:
30      message: Pods in this namespace may not be exec'd into.
31      deny:
32        conditions:
33          any:
34          - key: "{{ request.namespace }}"
35            operator: Equals
36            value: pci