Prevent Use of Default Project

 1apiVersion: kyverno.io/v1
 2kind: ClusterPolicy
 3metadata:
 4  name: application-prevent-default-project
 5  annotations:
 6    policies.kyverno.io/title: Prevent Use of Default Project
 7    policies.kyverno.io/category: Argo
 8    policies.kyverno.io/severity: medium
 9    kyverno.io/kyverno-version: 1.6.2
10    policies.kyverno.io/minversion: 1.6.0
11    kyverno.io/kubernetes-version: "1.23"
12    policies.kyverno.io/subject: Application
13    policies.kyverno.io/description: >-
14      This policy prevents the use of the default project in an Application.
15spec:
16  validationFailureAction: Audit
17  background: true
18  rules:
19    - name: default-project
20      match:
21        any:
22        - resources:
23            kinds:
24              - Application
25      preconditions:
26        all:
27        - key: "{{ request.operation || 'BACKGROUND' }}"
28          operator: NotEquals
29          value: DELETE
30      validate:
31        message: "The default project may not be used in an Application."
32        pattern:
33          spec:
34            project: "!default"