feat(argo-cd): Make AWS ALB GRPC backend protocol version configurable (#909)

Signed-off-by: Sander van Schie <sandervanschie@gmail.com>

charts/argo-cd/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 appVersion: 2.1.1
 description: A Helm chart for ArgoCD, a declarative, GitOps continuous delivery tool for Kubernetes.
 name: argo-cd
-version: 3.17.4
+version: 3.17.5
 home: https://github.com/argoproj/argo-helm
 icon: https://argoproj.github.io/argo-cd/assets/logo.png
 keywords:
@@ -21,4 +21,4 @@ dependencies:
     condition: redis-ha.enabled
 annotations:
   artifacthub.io/changes: |
-    - "[Changed]: Upgrade dex server to 2.30.0"
+    - "[Changed]: Make AWS ALB GRPC backend protocol version configurable"

charts/argo-cd/README.md

@@ -329,6 +329,7 @@ NAME: my-release
 | server.ingressGrpc.tls | Ingress TLS configuration for dedicated [gRPC-ingress] | `[]` |
 | server.ingressGrpc.isAWSALB | Setup up GRPC ingress to work with an AWS ALB | `false` |
 | server.ingressGrpc.awsALB.serviceType | Service type for the AWS ALB GRPC service | `NodePort` |
+| server.ingressGrpc.awsALB.backendProtocolVersion | Backend protocol version for the AWS ALB GRPC service | `HTTP2` |
 | server.route.enabled | Enable a OpenShift route for the server | `false` |
 | server.route.hostname | Hostname of OpenShift route | `""` |
 | server.lifecycle | PostStart and PreStop hooks configuration | `{}` |

charts/argo-cd/templates/argocd-server/alb-grpc-service.yaml

@@ -3,7 +3,7 @@ apiVersion: v1
 kind: Service
 metadata:
   annotations:
-    alb.ingress.kubernetes.io/backend-protocol-version: HTTP2 #This tells AWS to send traffic from the ALB using HTTP2. Can use GRPC as well if you want to leverage GRPC specific features
+    alb.ingress.kubernetes.io/backend-protocol-version: {{ .Values.server.ingressGrpc.awsALB.backendProtocolVersion }}
   labels:
     {{- include "argo-cd.labels" (dict "context" . "component" (print .Values.server.name "-gprc") "name" (print .Values.server.name "-grpc")) | nindent 4 }}
   name: {{ template "argo-cd.server.fullname" . }}-grpc

charts/argo-cd/values.yaml

@@ -644,14 +644,15 @@ server:
     labels: {}
     ingressClassName: ""
 
-    ## Service Type if isAWSALB is set to true
-    ## Can be of type NodePort or ClusterIP depending on which mode you are
-    ## are running. Instance mode needs type NodePort, IP mode needs type
-    ## ClusterIP
-    ## Ref: https://kubernetes-sigs.github.io/aws-load-balancer-controller/v2.2/how-it-works/#ingress-traffic
-    ##
     awsALB:
+      ## Service Type if isAWSALB is set to true
+      ## Can be of type NodePort or ClusterIP depending on which mode you are
+      ## are running. Instance mode needs type NodePort, IP mode needs type
+      ## ClusterIP
+      ## Ref: https://kubernetes-sigs.github.io/aws-load-balancer-controller/v2.2/how-it-works/#ingress-traffic
       serviceType: NodePort
+      # This tells AWS to send traffic from the ALB using HTTP2. Can use GRPC as well if you want to leverage GRPC specific features
+      backendProtocolVersion: HTTP2
 
     ## Argo Ingress.
     ## Hostnames must be provided if Ingress is enabled.