Add Istio Operatorless Network Policy support

Description:

• Adds support to package for Istio Operatorless Network Policy dynamic values. Istio Operatorless dynamic values only get applied when Istio3 is enabled in the Big Bang umbrella.
• If no IstioNamespaaceSelector values are found the value defaults to the defualt operator deployment value: istio-controlplane.

Add Dynamic values for Istio Operatorless:

1. Identify the Ingress/Egress policies in the linked table with hardcoded namespace selector labels.
2. For Egress policies replace hardcoded namespaceSelector labels app.kubernetes.io/name: istio-controlplane with:

{{- if .Values.networkPolicies.istioNamespaceSelector }}
app.kubernetes.io/name: {{ .Values.networkPolicies.istioNamespaceSelector.ingress }}
{{- else }}
app.kubernetes.io/name: "istio-controlplane"
{{- end }}

3. For Ingress policies replace hardcoded namespaceSelector labels app.kubernetes.io/name: istio-controlplane values with the following:

{{- if .Values.networkPolicies.istioNamespaceSelector }}
app.kubernetes.io/name: {{ .Values.networkPolicies.istioNamespaceSelector.ingress }}
{{- else }}
app.kubernetes.io/name: "istio-controlplane"
{{- end }}

Testing Validation:

• Create k3d dev cluster and deploy Big Bang with the package enabled and pointed to the MR branch.
• Validate there are no deployment issues.
• For deployments using Istio Operator confirm that package network policies listed in table still have the istio-control namespace selector label applied

added kindfeature priority4 teamService Mesh labels

set weight to 1

changed iteration to Big Bang Iterations Feb 4, 2025 - Feb 17, 2025

assigned to @jimmy.bourque

added to epic big-bang&352 (closed)

mentioned in merge request !159 (merged)

added statusreview label

mentioned in merge request big-bang/bigbang!5760 (merged)

closed with merge request big-bang/bigbang!5760 (merged)

mentioned in commit big-bang/bigbang@85d0b476

removed statusreview label