Public Information

charts/instance/templates/networkpolicy.tpl

@@ -0,0 +1,115 @@
+{{- include "nplus.init" $ -}}
+{{- if ((.this.security).cni).createNetworkPolicy }}
+
+{{- if ((.this.security).cni).defaultIngressPolicy }}
+{{- if eq ((.this.security).cni).defaultIngressPolicy "deny" }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ .component.prefix }}default-deny-ingress
+  {{- if .this.utils.includeNamespace }}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
+  labels:
+    {{- include "nplus.instanceLabels" . | nindent 4 }}
+spec:
+  podSelector:
+    matchLabels:
+      nplus/group: {{ .instance.group }}
+  policyTypes:
+  - Ingress
+{{- end }}
+---
+{{- if eq ((.this.security).cni).defaultIngressPolicy "allow" }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ .component.prefix }}default-allow-ingress
+  {{- if .this.utils.includeNamespace }}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
+  labels:
+    {{- include "nplus.instanceLabels" . | nindent 4 }}
+spec:
+  podSelector:
+    matchLabels:
+      nplus/group: {{ .instance.group }}
+  policyTypes:
+  - Ingress
+  ingress:
+  - {}
+{{- end }}
+
+{{- end }}
+---
+{{- if ((.this.security).cni).defaultEgressPolicy }}
+{{- if eq ((.this.security).cni).defaultEgressPolicy "deny" }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ .component.prefix }}default-deny-egress
+  {{- if .this.utils.includeNamespace }}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
+  labels:
+    {{- include "nplus.instanceLabels" . | nindent 4 }}
+spec:
+  podSelector:
+    matchLabels:
+      nplus/group: {{ .instance.group }}
+  policyTypes:
+  - Egress
+{{- end }}
+---
+{{- if eq ((.this.security).cni).defaultEgressPolicy "allow" }}
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: {{ .component.prefix }}default-allow-egress
+  {{- if .this.utils.includeNamespace }}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
+  labels:
+    {{- include "nplus.instanceLabels" . | nindent 4 }}
+spec:
+  podSelector:
+    matchLabels:
+      nplus/group: {{ .instance.group }}
+  policyTypes:
+  - Egress
+  ingress:
+  - {}
+{{- end }}
+
+{{- end }}
+
+
+
+
+---
+kind: NetworkPolicy
+apiVersion: networking.k8s.io/v1
+metadata:
+  name: {{ .component.prefix }}allow-dns
+  {{- if .this.utils.includeNamespace }}
+  namespace: {{ .Release.Namespace }}
+  {{- end }}
+spec:
+  podSelector:
+    matchLabels:
+      nplus/group: {{ .instance.group }}
+  policyTypes:
+    - Egress
+  egress:
+  - to:
+    - namespaceSelector:
+        matchLabels:
+          kubernetes.io/metadata.name: kube-system
+    ports:
+      - protocol: UDP
+        port: 53
+      - protocol: TCP
+        port: 53
+
+
+{{- end }}