new way of doin

helm-charts/dashy/charts/common/templates/lib/endpointSlice/_endpoints.tpl

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+{{/* EndpointSlice - endpoints */}}
+{{/* Call this template:
+{{ include "tc.v1.common.lib.endpointslice.endpoints" (dict "rootCtx" $rootCtx "objectData" $objectData) -}}
+rootCtx: The root context of the chart.
+objectData: The object data of the service
+*/}}
+
+{{- define "tc.v1.common.lib.endpointslice.endpoints" -}}
+  {{- $rootCtx := .rootCtx -}}
+  {{- $objectData := .objectData -}}
+
+  {{- if not $objectData.externalIP -}}
+    {{- fail "EndpointSlice - Expected non-empty <externalIP>" -}}
+  {{- end -}}
+
+  {{- if not (kindIs "string" $objectData.externalIP) -}} {{/* Only single IP is supported currently on this lib */}}
+    {{- fail (printf "EndpointSlice - Expected <externalIP> to be a [string], but got [%s]" (kindOf $objectData.externalIP)) -}}
+  {{- end }}
+- addresses:
+  - {{ tpl $objectData.externalIP $rootCtx }}
+{{- end -}}

helm-charts/dashy/charts/common/templates/lib/endpointSlice/_ports.tpl

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+{{/* EndpointSlice - Ports */}}
+{{/* Call this template:
+{{ include "tc.v1.common.lib.endpointslice.ports" (dict "rootCtx" $rootCtx "objectData" $objectData) -}}
+rootCtx: The root context of the chart.
+objectData: The object data of the service
+*/}}
+
+{{- define "tc.v1.common.lib.endpointslice.ports" -}}
+  {{- $rootCtx := .rootCtx -}}
+  {{- $objectData := .objectData -}}
+
+  {{- $tcpProtocols := (list "tcp" "http" "https") -}}
+  {{- range $name, $portValues := $objectData.ports -}}
+    {{- if $portValues.enabled -}}
+      {{- $protocol := $rootCtx.Values.fallbackDefaults.serviceProtocol -}} {{/* Default to fallback protocol, if no protocol is defined */}}
+      {{- $port := $portValues.targetPort | default $portValues.port -}}
+
+      {{/* Expand targetPort */}}
+      {{- if (kindIs "string" $port) -}}
+        {{- $port = (tpl $port $rootCtx) -}}
+      {{- end -}}
+      {{- $port = int $port -}}
+
+      {{- with $portValues.protocol -}}
+        {{- $protocol = tpl . $rootCtx -}}
+
+        {{- if mustHas $protocol $tcpProtocols -}}
+          {{- $protocol = "tcp" -}}
+        {{- end -}}
+      {{- end }}
+- name: {{ $name }}
+  port: {{ $port }}
+  protocol: {{ $protocol | upper }}
+      {{- with $portValues.appProtocol }}
+  appProtocol: {{ tpl . $rootCtx | lower }}
+      {{- end -}}
+    {{- end -}}
+  {{- end -}}
+
+{{- end -}}