allow to override metallb shared key

library/common-test/tests/service/service_test.yaml

@@ -230,6 +230,26 @@ tests:
             some_key: value
             some_key1: value1
 
+  - it: should pass with addAnnotations set to true and overridden metalLBSharedKey
+    documentIndex: *serviceDoc
+    set:
+      addAnnotations:
+        traefik: true
+        metallb: true
+      service:
+        main:
+          type: LoadBalancer
+          metalLBSharedKey: custom-shared-key
+          ports:
+            main:
+              protocol: HTTPS
+    asserts:
+      - equal:
+          path: metadata.annotations
+          value:
+            traefik.ingress.kubernetes.io/service.serversscheme: https
+            metallb.universe.tf/allow-shared-ip: custom-shared-key
+
   - it: should pass with labels
     documentIndex: *serviceDoc
     set:

library/common/1.0.0/templates/class/_service.tpl

@@ -32,13 +32,17 @@ metadata:
   {{- with (include "ix.v1.common.util.labels.render" (dict "root" $root "labels" $labels) | trim) }}
   labels:
     {{- . | nindent 4 }}
-  {{- end }}
+  {{- end -}}
   {{- $additionalAnnotations := dict -}}
-  {{- if and $root.Values.addAnnotations.traefik (eq ($primaryPort.protocol | default "") "HTTPS") }}
+  {{- if and $root.Values.addAnnotations.traefik (eq ($primaryPort.protocol | default "") "HTTPS") -}}
     {{- $_ := set $additionalAnnotations "traefik.ingress.kubernetes.io/service.serversscheme" "https" -}}
   {{- end -}}
-  {{- if and $root.Values.addAnnotations.metallb (eq $svcType "LoadBalancer") }}
-    {{- $_ := set $additionalAnnotations "metallb.universe.tf/allow-shared-ip" (include "ix.v1.common.names.fullname" $root) }}
+  {{- if and $root.Values.addAnnotations.metallb (eq $svcType "LoadBalancer") -}}
+    {{- $sharedLBKey := include "ix.v1.common.names.fullname" $root -}}
+    {{- with $svcValues.metalLBSharedKey -}}
+      {{- $sharedLBKey = tpl . $root -}}
+    {{- end -}}
+    {{- $_ := set $additionalAnnotations "metallb.universe.tf/allow-shared-ip" $sharedLBKey -}}
   {{- end -}}
   {{- $annotations := (mustMerge ($svcValues.annotations | default dict) (include "ix.v1.common.annotations" $root | fromYaml) $additionalAnnotations) -}}
   {{- with (include "ix.v1.common.util.annotations.render" (dict "root" $root "annotations" $annotations) | trim) }}