feat(argo-rollouts): add loadBalancerClass field for Service resource (#2772)

Most users of ArgoCD may use `Ingress` (and soon `HTTPRoute`), but for those who may want to use `Service` of type `LoadBalancer`, this would be useful.
The `loadBalancerClass` field would allow for a `CloudProvider` agnostic way of offloading the reconciliation for Kubernetes Service resources of type `LoadBalancer` to an external controller.

Signed-off-by: Gazal Gafoor <gazal.gafoor@rea-group.com>
Signed-off-by: Gazal <gazal.gafoor@rea-group.com>
Co-authored-by: Aikawa <yu.croco@gmail.com>

charts/argo-rollouts/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: v1.7.2
 description: A Helm chart for Argo Rollouts
 name: argo-rollouts
-version: 2.37.5
+version: 2.37.6
 home: https://github.com/argoproj/argo-helm
 icon: https://argoproj.github.io/argo-rollouts/assets/logo.png
 keywords:
@@ -19,4 +19,4 @@ annotations:
     url: https://argoproj.github.io/argo-helm/pgp_keys.asc
   artifacthub.io/changes: |
     - kind: changed
-      description: Bump argo-rollouts to v1.7.2
+      description: add loadBalancerClass field for Service resources

charts/argo-rollouts/README.md

@@ -182,6 +182,7 @@ For full list of changes please check ArtifactHub [changelog].
 | dashboard.service.annotations | object | `{}` | Service annotations |
 | dashboard.service.externalIPs | list | `[]` | Dashboard service external IPs |
 | dashboard.service.labels | object | `{}` | Service labels |
+| dashboard.service.loadBalancerClass | string | `""` | The class of the load balancer implementation |
 | dashboard.service.loadBalancerIP | string | `""` | LoadBalancer will get created with the IP specified in this field |
 | dashboard.service.loadBalancerSourceRanges | list | `[]` | Source IP ranges to allow access to service from |
 | dashboard.service.nodePort | int | `nil` | Service nodePort |

charts/argo-rollouts/templates/dashboard/service.yaml

@@ -22,6 +22,9 @@ spec:
   externalIPs: {{- toYaml . | nindent 4 }}
   {{- end }}
   {{- if eq .Values.dashboard.service.type "LoadBalancer" }}
+    {{- with .Values.dashboard.service.loadBalancerClass }}
+  loadBalancerClass: {{ . }}
+    {{- end }}
     {{- with .Values.dashboard.service.loadBalancerIP }}
   loadBalancerIP: {{ . | quote }}
     {{- end }}

charts/argo-rollouts/values.yaml

@@ -356,6 +356,8 @@ dashboard:
   service:
     # -- Sets the type of the Service
     type: ClusterIP
+    # -- The class of the load balancer implementation
+    loadBalancerClass: ""
     # -- LoadBalancer will get created with the IP specified in this field
     loadBalancerIP: ""
     # -- Source IP ranges to allow access to service from