[AAI] Create Authorization Policies for AAI

- Create Authorization Policies for AAI
- Add initial authorized serviceAccounts for each sub-component service

Issue-ID: OOM-3126
Change-Id: Ic7fdaf595ae3534805a39859fe8e02b81999bef3
Signed-off-by: amatthews <adrian.matthews@est.tech>
Signed-off-by: AndrewLamb <andrew.a.lamb@est.tech>

1 files changed, 100 insertions, 0 deletions

diff --git a/kubernetes/aai/templates/authorizationpolicy.yaml b/kubernetes/aai/templates/authorizationpolicy.yaml
new file mode 100644
index 0000000000..fa59f52f35
--- /dev/null
+++ b/kubernetes/aai/templates/authorizationpolicy.yaml
@@ -0,0 +1,100 @@
+{{/*
+# Copyright © 2023 Nordix Foundation
+#
+# 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.
+*/}}
+
+{{- $dot := default . .dot -}}
+{{- $trustedDomain := default "cluster.local" $dot.Values.serviceMesh.authorizationPolicy.trustedDomain -}}
+{{- $authorizedPrincipals := default list $dot.Values.serviceMesh.authorizationPolicy.authorizedPrincipals -}}
+{{- $authorizedPrincipalsMetrics := default list $dot.Values.serviceMesh.authorizationPolicy.authorizedPrincipalsMetrics -}}
+{{- $defaultOperationMethods := list "GET" "POST" "PUT" "PATCH" "DELETE" -}}
+{{- $relName := include "common.release" . -}}
+
+{{- if (include "common.useAuthorizationPolicies" .) }}
+apiVersion: security.istio.io/v1beta1
+kind: AuthorizationPolicy
+metadata:
+  name: {{ include "common.fullname" (dict "suffix" "authz" "dot" . )}}
+  namespace: {{ include "common.namespace" . }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ include "common.name" . }}
+  action: ALLOW
+  rules:
+{{-   if $authorizedPrincipals }}
+{{-     range $principal := $authorizedPrincipals }}
+  - from:
+    - source:
+        principals:
+{{-       $namespace := default "onap" $principal.namespace -}}
+{{-       if eq "onap" $namespace }}
+        - "{{ $trustedDomain }}/ns/{{ $namespace }}/sa/{{ $relName }}-{{ $principal.serviceAccount }}"
+{{-       else }}
+        - "{{ $trustedDomain }}/ns/{{ $namespace }}/sa/{{ $principal.serviceAccount }}"
+{{-       end }}
+    to:
+    - operation:
+        methods:
+{{-       if $principal.allowedOperationMethods }}
+{{-         range $method := $principal.allowedOperationMethods }}
+        - {{ $method }}
+{{-         end }}
+{{-       else }}
+{{-           range $method := $defaultOperationMethods }}
+        - {{ $method }}
+{{-         end }}
+{{-       end }}
+{{-     end }}
+{{-   end }}
+{{- end }}
+---
+{{- if (include "common.useAuthorizationPolicies" .) }}
+apiVersion: security.istio.io/v1beta1
+kind: AuthorizationPolicy
+metadata:
+  name: {{ include "common.fullname" (dict "suffix" "metrics-authz" "dot" . )}}
+  namespace: {{ include "common.namespace" . }}
+spec:
+  selector:
+    matchLabels:
+      app: {{ include "common.name" . }}-metrics
+  action: ALLOW
+  rules:
+{{-   if $authorizedPrincipalsMetrics }}
+{{-     range $principal := $authorizedPrincipalsMetrics }}
+  - from:
+    - source:
+        principals:
+{{-       $namespace := default "onap" $principal.namespace -}}
+{{-       if eq "onap" $namespace }}
+        - "{{ $trustedDomain }}/ns/{{ $namespace }}/sa/{{ $relName }}-{{ $principal.serviceAccount }}"
+{{-       else }}
+        - "{{ $trustedDomain }}/ns/{{ $namespace }}/sa/{{ $principal.serviceAccount }}"
+{{-       end }}
+    to:
+    - operation:
+        methods:
+{{-       if $principal.allowedOperationMethods }}
+{{-         range $method := $principal.allowedOperationMethods }}
+        - {{ $method }}
+{{-         end }}
+{{-       else }}
+{{-           range $method := $defaultOperationMethods }}
+        - {{ $method }}
+{{-         end }}
+{{-       end }}
+{{-     end }}
+{{-   end }}
+{{- end }}