{{- /*
Copyright 2018, AT&T Intellectual Property

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/}}

{{- if .Values.manifests.podsecuritypolicy }}
{{- $envAll := . }}

{{- /* Create one ClusterRole and PSP per PSP definition in values */}}
{{- range $pspName, $pspDetails := .Values.data }}
{{- if and $pspName $pspDetails }}
---
apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
  name: {{ $pspName }}
  labels:
{{ tuple $envAll "podsecuritypolicy" "policy" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
{{- if $pspDetails.annotations }}
  annotations:
{{ toYaml $pspDetails.annotations | indent 4 }}
{{- end }}
spec:
{{ toYaml $pspDetails.spec | indent 2 }}
---
kind: ClusterRole
apiVersion: rbac.authorization.k8s.io/v1
metadata:
  name: {{ $pspName }}
  labels:
{{ tuple $envAll "podsecuritypolicy" "policy" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
rules:
- apiGroups: ['policy']
  resources: ['podsecuritypolicies']
  verbs: ['use']
  resourceNames:
  - {{ $pspName }}
{{- end }}
{{- end }}

{{- /* Configure ClusterRoles to bind to different subjects as defaults */}}
{{- if .Values.conf.defaults }}
{{- range $rbacSubject, $defaultRole := .Values.conf.defaults }}
{{- if and $defaultRole (not (eq "nil" $defaultRole)) }}
---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1
metadata:
{{- /* NOTE: the role name is included in the name of the binding below
     for the sake of chart upgrades.  The roleRef for a binding is immutable,
     so if the the defaultRole changes, we need a different binding to
     reflect that. This issue was only sporadic! */}}
  name: psp-binding-for-{{- $rbacSubject | replace ":" "-" -}}-{{- $defaultRole }}
  labels:
{{ tuple $envAll "podsecuritypolicy" "policy" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
roleRef:
  kind: ClusterRole
  name: {{ $defaultRole }}
  apiGroup: rbac.authorization.k8s.io
subjects:
- kind: Group
  name: system:{{- $rbacSubject }}
  apiGroup: rbac.authorization.k8s.io
{{- end }}
{{- end }}
{{- end }}
{{- /* Configure ClusterRoles to bind to non-default subjects */}}
{{- if .Values.conf.serviceaccounts }}
{{- range $rbacSubject, $rbacRole := .Values.conf.serviceaccounts }}
{{- if and $rbacSubject (not (eq "nil" $rbacRole)) }}
{{- $subjectName := ( $rbacSubject | split ":" )._1 | default "default" }}
{{- $subjectNamespace := ($rbacSubject | split ":" )._0 }}
---
apiVersion: "rbac.authorization.k8s.io/v1"
kind: "ClusterRoleBinding"
metadata:
{{- /* NOTE: the role name is included in the name of the binding below
     for the sake of chart upgrades.  The roleRef for a binding is immutable,
     so if the the defaultRole changes, we need a different binding to
     reflect that. This issue was only sporadic! */}}
  name: psp-binding-for-{{- $subjectNamespace -}}-{{- $subjectName -}}-{{- $rbacRole }}
  labels:
{{ tuple $envAll "podsecuritypolicy" "policy" | include "helm-toolkit.snippets.kubernetes_metadata_labels" | indent 4 }}
roleRef:
  kind: "ClusterRole"
  name: {{ $rbacRole | quote }}
  apiGroup: "rbac.authorization.k8s.io"
subjects:
- kind: "ServiceAccount"
  name: {{ $subjectName | quote }}
  namespace: {{ $subjectNamespace| quote }}
{{- end }}
{{- end }}
{{- end }}
{{- end }}