feat: Add ability to specify load balancer class (#67)

Adds the ability to specify a load balancer class:
https://kubernetes.io/docs/concepts/services-networking/service/#load-balancer-class

Using the value `service.loadBalancerClass`, default is an empty string,
if an empty string the value will not be set retaining compatibility
with older but still tested kubernetes versions in the pipeline (1.23).

This PR cherry picks the commit from #62 and updates the docs, etc to
support the release to artifact hub on merge to main.

Author: bryopsida

.github/workflows/helm-qa.yml

@@ -15,7 +15,6 @@ jobs:
           - name: default
             ct_extra_args: >-
               --upgrade
-              --helm-extra-set-args='--set=service.type=ClusterIP'
     name: 'Helm (${{ matrix.suite.name }})'
     uses: curium-rocks/flows/.github/workflows/helm-qa.yml@main
     with:

helm/wireguard/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v2
 name: wireguard
 description: A Helm chart for managing a wireguard vpn in kubernetes
 type: application
-version: 0.27.0
+version: 0.28.0
 appVersion: "0.0.0"
 maintainers:
   - name: bryopsida

helm/wireguard/README.md

@@ -1,6 +1,6 @@
 # wireguard
 
-![Version: 0.27.0](https://img.shields.io/badge/Version-0.27.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 0.0.0](https://img.shields.io/badge/AppVersion-0.0.0-informational?style=flat-square)
+![Version: 0.28.0](https://img.shields.io/badge/Version-0.28.0-informational?style=flat-square) ![Type: application](https://img.shields.io/badge/Type-application-informational?style=flat-square) ![AppVersion: 0.0.0](https://img.shields.io/badge/AppVersion-0.0.0-informational?style=flat-square)
 
 A Helm chart for managing a wireguard vpn in kubernetes
 
@@ -122,6 +122,7 @@ A Helm chart for managing a wireguard vpn in kubernetes
 | service.enabled | bool | `true` | Whether the service will be created or not |
 | service.externalTrafficPolicy | string | `""` | External Traffic Policy for the service |
 | service.extraPorts | list | `[]` | Extra ports that can be attached to the service object, these are passed directly to the port array on the service and must be well formed to the specification |
+| service.loadBalancerClass | string | `""` | loadBalancerClass for Service Controllers that support it |
 | service.loadBalancerIP | string | `""` | IP to assign to the LoadBalancer service |
 | service.nodePort | int | `31820` | Node port, only valid with service type: NodePort |
 | service.port | int | `51820` | Service port, default is 51820 UDP |

helm/wireguard/templates/service-health-endpoint.yaml

@@ -25,4 +25,7 @@ spec:
     {{- end }}
   selector:
     app: "{{ .Release.Name }}-wireguard"
+  {{- if and .Values.healthSideCar.service.loadBalancerClass (semverCompare ">=1.24-0" .Capabilities.KubeVersion.Version) }}
+  loadBalancerClass: {{ .Values.healthSideCar.service.loadBalancerClass }}
+  {{- end }}
 {{- end }}

helm/wireguard/templates/service.yaml

@@ -30,4 +30,7 @@ spec:
   {{- if .Values.service.loadBalancerIP }}
   loadBalancerIP: {{ .Values.service.loadBalancerIP }}
   {{- end }}
+  {{- if and .Values.service.loadBalancerClass (semverCompare ">=1.24-0" .Capabilities.KubeVersion.Version) }}
+  loadBalancerClass: {{ .Values.service.loadBalancerClass }}
+  {{- end }}
 {{- end }}

helm/wireguard/values.yaml

@@ -92,6 +92,8 @@ service:
   annotations: {}
   # -- Extra ports that can be attached to the service object, these are passed directly to the port array on the service and must be well formed to the specification
   extraPorts: []
+  # -- loadBalancerClass for Service Controllers that support it
+  loadBalancerClass: ""
 # -- Name of a secret with a wireguard private key on key privatekey, if not provided on first install a hook generates one.
 secretName: ~
 replicaCount: 3