/
disallow-capabilities-strict.yaml
62 lines (62 loc) · 2.24 KB
/
disallow-capabilities-strict.yaml
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apiVersion: kyverno.io/v1
kind: ClusterPolicy
metadata:
name: disallow-capabilities-strict
annotations:
policies.kyverno.io/title: Disallow Capabilities (Strict)
policies.kyverno.io/category: Pod Security Standards (Restricted)
policies.kyverno.io/severity: medium
policies.kyverno.io/minversion: 1.6.0
kyverno.io/kubernetes-version: "1.22-1.23"
policies.kyverno.io/subject: Pod
policies.nirmata.io/remediation-docs: "https://docs.nirmata.io/policysets/podsecurity/restricted/disallow-capabilities-strict/"
policies.nirmata.io/remediation: "https://github.com/nirmata/kyverno-policies/tree/main/pod-security/restricted/disallow-capabilities-strict/remediate-disallow-capabilities-strict.yaml"
policies.kyverno.io/description: >-
Adding capabilities other than `NET_BIND_SERVICE` is disallowed. In addition,
all containers must explicitly drop `ALL` capabilities.
spec:
validationFailureAction: Audit
background: true
rules:
- name: require-drop-all
match:
any:
- resources:
kinds:
- Pod
operations:
- CREATE
- UPDATE
validate:
message: >-
Containers must drop `ALL` capabilities.
foreach:
- list: request.object.spec.[ephemeralContainers, initContainers, containers][]
deny:
conditions:
all:
- key: ALL
operator: AnyNotIn
value: "{{ element.securityContext.capabilities.drop[] || `[]` }}"
- name: adding-capabilities-strict
match:
any:
- resources:
kinds:
- Pod
operations:
- CREATE
- UPDATE
validate:
message: >-
Any capabilities added other than NET_BIND_SERVICE are disallowed.
foreach:
- list: request.object.spec.[ephemeralContainers, initContainers, containers][]
deny:
conditions:
all:
- key: "{{ element.securityContext.capabilities.add[] || `[]` }}"
operator: AnyNotIn
value:
- NET_BIND_SERVICE
- ""