Require Ingress HTTPS

 1apiVersion: kyverno.io/v1
 2kind: ClusterPolicy
 3metadata:
 4  name: require-ingress-https
 5  annotations:
 6    policies.kyverno.io/title: Require Ingress HTTPS
 7    policies.kyverno.io/category: Other
 8    policies.kyverno.io/severity: medium
 9    kyverno.io/kyverno-version: 1.9.0
10    kyverno.io/kubernetes-version: "1.24"
11    policies.kyverno.io/subject: Ingress
12    policies.kyverno.io/description: >-
13      Ingress resources should only allow secure traffic by disabling
14      HTTP and therefore only allowing HTTPS. This policy requires that all
15      Ingress resources set the annotation `kubernetes.io/ingress.allow-http` to
16      `"false"` and specify TLS in the spec.      
17spec:
18  background: true
19  validationFailureAction: audit
20  rules:
21  - name: has-annotation
22    match:
23      any:
24      - resources:
25          kinds:
26          - Ingress
27    preconditions:
28      all:
29      - key: "{{request.operation || 'BACKGROUND'}}"
30        operator: AnyIn
31        value:
32        - CREATE
33        - UPDATE
34    validate:
35      message: "The kubernetes.io/ingress.allow-http annotation must be set to false."
36      pattern:
37        metadata:
38          annotations:
39            kubernetes.io/ingress.allow-http: "false"
40  - name: has-tls
41    match:
42      any:
43      - resources:
44          kinds:
45          - Ingress
46    preconditions:
47      all:
48      - key: "{{request.operation || 'BACKGROUND'}}"
49        operator: AnyIn
50        value:
51        - CREATE
52        - UPDATE
53    validate:
54      message: "TLS must be defined."
55      deny:
56        conditions:
57          all:
58          - key: tls
59            operator: AnyNotIn
60            value: "{{ request.object.spec.keys(@) }}"