feat: make DNS and DHCP container ports configurable

Replace hardcoded port values (53 for DNS, 67 for DHCP) with configurable
values from serviceDns.port and serviceDhcp.port in deployment and service
templates.

Inspired by MoJo2600#401

Author: madic-creates

charts/pihole/templates/deployment.yaml

@@ -247,13 +247,13 @@ spec:
           - containerPort: {{ .Values.webHttp }}
             name: http
             protocol: TCP
-          - containerPort: 53
+          - containerPort: {{ .Values.serviceDns.port }}
             name: dns
             protocol: TCP
           {{- if .Values.dnsHostPort.enabled }}
             hostPort: {{ .Values.dnsHostPort.port }}
           {{- end }}
-          - containerPort: 53
+          - containerPort: {{ .Values.serviceDns.port }}
             name: dns-udp
             protocol: UDP
           {{- if .Values.dnsHostPort.enabled }}
@@ -262,7 +262,7 @@ spec:
           - containerPort:  {{ .Values.webHttps }}
             name: https
             protocol: TCP
-          - containerPort: 67
+          - containerPort: {{ .Values.serviceDhcp.port }}
             name: client-udp
             protocol: UDP
           {{- if .Values.probes.liveness.enabled }}

charts/pihole/templates/service-dhcp.yaml

@@ -66,7 +66,7 @@ spec:
   externalTrafficPolicy: {{ .Values.serviceDhcp.externalTrafficPolicy }}
   {{- end }}
   ports:
-    - port: 67
+    - port: {{ .Values.serviceDhcp.port }}
       targetPort: client-udp
       protocol: UDP
       name: client-udp