[bitnami/kong] feat: 🔒 Enable networkPolicy (#23184)

Signed-off-by: Javier Salmeron Garcia <jsalmeron@vmware.com>

bitnami/kong/templates/migrate-job-networkpolicy.yaml

@@ -0,0 +1,68 @@
+{{- /*
+Copyright VMware, Inc.
+SPDX-License-Identifier: APACHE-2.0
+*/}}
+
+{{- if and .Values.networkPolicy.enabled (or (eq .Values.database "postgresql") (eq .Values.database "cassandra")) }}
+kind: NetworkPolicy
+apiVersion: {{ include "common.capabilities.networkPolicy.apiVersion" . }}
+metadata:
+  name: {{ template "common.names.fullname" . }}-migrate
+  namespace: {{ include "common.names.namespace" . | quote }}
+  labels: {{- include "common.labels.standard" ( dict "customLabels" .Values.commonLabels "context" $ ) | nindent 4 }}
+    app.kubernetes.io/component: server
+  {{- if .Values.commonAnnotations }}
+  annotations: {{- include "common.tplvalues.render" ( dict "value" .Values.commonAnnotations "context" $ ) | nindent 4 }}
+  {{- end }}
+spec:
+  {{- $podLabels := include "common.tplvalues.merge" ( dict "values" ( list .Values.podLabels .Values.commonLabels ) "context" . ) }}
+  podSelector:
+    matchLabels: {{- include "common.labels.matchLabels" ( dict "customLabels" $podLabels "context" $ ) | nindent 6 }}
+      app.kubernetes.io/component: migration
+  policyTypes:
+    - Ingress
+    - Egress
+  {{- if .Values.networkPolicy.allowExternalEgress }}
+  egress:
+    - {}
+  {{- else }}
+  egress: 
+    - ports:
+        # Allow dns resolution
+        - port: 53
+          protocol: UDP
+        - port: 53
+          protocol: TCP
+    {{- if (eq .Values.database "postgresql") }}
+    # Allow connection to PostgreSQL
+    - ports:
+        - port: {{ include "kong.postgresql.port" . | trimAll "\"" | int }}
+      {{- if .Values.postgresql.enabled }}
+      to:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/name: postgresql
+              app.kubernetes.io/instance: {{ .Release.Name }}              
+      {{- end }}
+    {{- end }}
+    {{- if (eq .Values.database "cassandra") }}
+    # Allow connection to Cassandra
+    - ports:
+        - port: {{ include "kong.cassandra.port" . | trimAll "\"" | int }}
+      {{- if .Values.cassandra.enabled }}
+      to:
+        - podSelector:
+            matchLabels:
+              app.kubernetes.io/name: cassandra
+              app.kubernetes.io/instance: {{ .Release.Name }}              
+      {{- end }}
+    {{- end }}
+    {{- if .Values.networkPolicy.extraEgress }}
+    {{- include "common.tplvalues.render" ( dict "value" .Values.networkPolicy.extraEgress "context" $ ) | nindent 4 }}
+    {{- end }}
+  {{- end }}
+  ingress:
+    {{- if .Values.networkPolicy.extraIngress }}
+    {{- include "common.tplvalues.render" ( dict "value" .Values.networkPolicy.extraIngress "context" $ ) | nindent 4 }}
+    {{- end }}
+{{- end }}