chore: adding psp-users CEL policy

artifacthub/library/pod-security-policy/users/1.1.0/artifacthub-pkg.yml

@@ -0,0 +1,22 @@
+version: 1.1.0
+name: k8spspallowedusers
+displayName: Allowed Users
+createdAt: "2024-05-30T00:06:50Z"
+description: Controls the user and group IDs of the container and some volumes. Corresponds to the `runAsUser`, `runAsGroup`, `supplementalGroups`, and `fsGroup` fields in a PodSecurityPolicy. For more information, see https://kubernetes.io/docs/concepts/policy/pod-security-policy/#users-and-groups
+digest: 8ec0383edcc95ade56ab32b52ce565ea315fc30ca18b337592ed4284c36eeef7
+license: Apache-2.0
+homeURL: https://open-policy-agent.github.io/gatekeeper-library/website/users
+keywords:
+    - gatekeeper
+    - open-policy-agent
+    - policies
+readme: |-
+    # Allowed Users
+    Controls the user and group IDs of the container and some volumes. Corresponds to the `runAsUser`, `runAsGroup`, `supplementalGroups`, and `fsGroup` fields in a PodSecurityPolicy. For more information, see https://kubernetes.io/docs/concepts/policy/pod-security-policy/#users-and-groups
+install: |-
+    ### Usage
+    ```shell
+    kubectl apply -f https://raw.githubusercontent.com/open-policy-agent/gatekeeper-library/master/artifacthub/library/pod-security-policy/users/1.1.0/template.yaml
+    ```
+provider:
+    name: Gatekeeper Library

artifacthub/library/pod-security-policy/users/1.1.0/kustomization.yaml

@@ -0,0 +1,2 @@
+resources:
+  - template.yaml

artifacthub/library/pod-security-policy/users/1.1.0/samples/psp-pods-allowed-user-ranges/constraint.yaml

@@ -0,0 +1,30 @@
+apiVersion: constraints.gatekeeper.sh/v1beta1
+kind: K8sPSPAllowedUsers
+metadata:
+  name: psp-pods-allowed-user-ranges
+spec:
+  match:
+    kinds:
+      - apiGroups: [""]
+        kinds: ["Pod"]
+  parameters:
+    runAsUser:
+      rule: MustRunAs # MustRunAsNonRoot # RunAsAny 
+      ranges:
+        - min: 100
+          max: 200
+    runAsGroup:
+      rule: MustRunAs # MayRunAs # RunAsAny 
+      ranges:
+        - min: 100
+          max: 200
+    supplementalGroups:
+      rule: MustRunAs # MayRunAs # RunAsAny 
+      ranges:
+        - min: 100
+          max: 200
+    fsGroup:
+      rule: MustRunAs # MayRunAs # RunAsAny 
+      ranges:
+        - min: 100
+          max: 200

artifacthub/library/pod-security-policy/users/1.1.0/samples/psp-pods-allowed-user-ranges/disallowed_ephemeral.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx-users-disallowed
+  labels:
+    app: nginx-users
+spec:
+  securityContext:
+    supplementalGroups:
+      - 250
+    fsGroup: 250
+  ephemeralContainers:
+    - name: nginx
+      image: nginx
+      securityContext:
+        runAsUser: 250
+        runAsGroup: 250

artifacthub/library/pod-security-policy/users/1.1.0/samples/psp-pods-allowed-user-ranges/example_allowed.yaml

@@ -0,0 +1,17 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx-users-allowed
+  labels:
+    app: nginx-users
+spec:
+  securityContext:
+    supplementalGroups:
+      - 199
+    fsGroup: 199
+  containers:
+    - name: nginx
+      image: nginx
+      securityContext:
+        runAsUser: 199
+        runAsGroup: 199

artifacthub/library/pod-security-policy/users/1.1.0/samples/psp-pods-allowed-user-ranges/example_disallowed.yaml

@@ -0,0 +1,23 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: nginx-users-disallowed
+  labels:
+    app: nginx-users
+spec:
+  securityContext:
+    supplementalGroups:
+      - 250
+    fsGroup: 250
+  containers:
+    - name: nginx
+      image: nginx
+      securityContext:
+        runAsUser: 250
+        runAsGroup: 250
+  initContainers:
+    - name: init-nginx
+      image: nginx
+      securityContext:
+        runAsUser: 250
+        runAsGroup: 250

artifacthub/library/pod-security-policy/users/1.1.0/samples/psp-pods-allowed-user-ranges/update.yaml

@@ -0,0 +1,22 @@
+kind: AdmissionReview
+apiVersion: admission.k8s.io/v1beta1
+request:
+  operation: "UPDATE"
+  object:
+    apiVersion: v1
+    kind: Pod
+    metadata:
+      name: nginx-users-disallowed
+      labels:
+        app: nginx-users
+    spec:
+      securityContext:
+        supplementalGroups:
+          - 250
+        fsGroup: 250
+      containers:
+        - name: nginx
+          image: nginx
+          securityContext:
+            runAsUser: 250
+            runAsGroup: 250

artifacthub/library/pod-security-policy/users/1.1.0/suite.yaml

@@ -0,0 +1,25 @@
+kind: Suite
+apiVersion: test.gatekeeper.sh/v1alpha1
+metadata:
+  name: users
+tests:
+- name: users-and-groups-together
+  template: template.yaml
+  constraint: samples/psp-pods-allowed-user-ranges/constraint.yaml
+  cases:
+  - name: example-disallowed
+    object: samples/psp-pods-allowed-user-ranges/example_disallowed.yaml
+    assertions:
+    - violations: yes
+  - name: example-allowed
+    object: samples/psp-pods-allowed-user-ranges/example_allowed.yaml
+    assertions:
+    - violations: no
+  - name: disallowed-ephemeral
+    object: samples/psp-pods-allowed-user-ranges/disallowed_ephemeral.yaml
+    assertions:
+    - violations: yes
+  - name: update
+    object: samples/psp-pods-allowed-user-ranges/update.yaml
+    assertions:
+    - violations: no