Require Run As ContainerUser (Windows)

 1apiVersion: kyverno.io/v1
 2kind: ClusterPolicy
 3metadata:
 4  name: require-run-as-containeruser
 5  annotations:
 6    policies.kyverno.io/title: Require Run As ContainerUser (Windows)
 7    policies.kyverno.io/category: Windows Security
 8    policies.kyverno.io/severity: medium
 9    policies.kyverno.io/subject: Pod
10    kyverno.io/kyverno-version: 1.6.0
11    kyverno.io/kubernetes-version: "1.22-1.28"
12    policies.kyverno.io/description: >-
13      Containers must be required to run as ContainerUser. This policy ensures that the fields 
14      spec.securityContext.windowsOptions.runAsUserName,
15      spec.containers[*].securityContext.windowsOptions.runAsUserName, 
16      spec.initContainers[*].securityContext.windowsOptions.runAsUserName,
17      and  is either unset or set to ContainerUser.
18spec:
19  validationFailureAction: Audit
20  background: true
21  rules:
22    - name: require-run-as-containeruser
23      match:
24        any:
25          - resources:
26              kinds:
27                - Pod
28      validate:
29        message: >-
30          Running the container as ContainerAdministrator,NT AUTHORITY\NETWORK SERVICE, NT AUTHORITY\LOCAL SERVICE is not allowed.
31        pattern:
32          spec:
33            =(securityContext):
34              =(windowsOptions):
35                =(runAsUserName): "ContainerUser"
36            =(initContainers):
37              - =(securityContext):
38                  =(windowsOptions):
39                    =(runAsUserName): "ContainerUser"
40            containers:
41              - =(securityContext):
42                  =(windowsOptions):
43                    =(runAsUserName): "ContainerUser"