feat: add support for specifying LoadBalancer class name (#15838)

This PR adds support for configuring the loadBalancerClass via the chart
values.

helm/coder/templates/service.yaml

@@ -35,6 +35,9 @@ spec:
   {{- with .Values.coder.service.externalTrafficPolicy }}
   externalTrafficPolicy: {{ . | quote }}
   {{- end }}
+  {{- with .Values.coder.service.loadBalancerClass }}
+  loadBalancerClass: {{ . | quote }}
+  {{- end }}
   {{- end }}
   selector:
     {{- include "coder.selectorLabels" . | nindent 4 }}

helm/coder/tests/chart_test.go

@@ -96,6 +96,10 @@ var testCases = []testCase{
 		name:          "topology",
 		expectedError: "",
 	},
+	{
+		name:          "svc_loadbalancer_class",
+		expectedError: "",
+	},
 }
 
 type testCase struct {

helm/coder/tests/testdata/svc_loadbalancer_class.golden

@@ -0,0 +1,191 @@
+---
+# Source: coder/templates/coder.yaml
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  annotations: {}
+  labels:
+    app.kubernetes.io/instance: release-name
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: coder
+    app.kubernetes.io/part-of: coder
+    app.kubernetes.io/version: 0.1.0
+    helm.sh/chart: coder-0.1.0
+  name: coder
+---
+# Source: coder/templates/rbac.yaml
+apiVersion: rbac.authorization.k8s.io/v1
+kind: Role
+metadata:
+  name: coder-workspace-perms
+rules:
+  - apiGroups: [""]
+    resources: ["pods"]
+    verbs:
+    - create
+    - delete
+    - deletecollection
+    - get
+    - list
+    - patch
+    - update
+    - watch
+  - apiGroups: [""]
+    resources: ["persistentvolumeclaims"]
+    verbs:
+    - create
+    - delete
+    - deletecollection
+    - get
+    - list
+    - patch
+    - update
+    - watch
+  - apiGroups:
+    - apps
+    resources:
+    - deployments
+    verbs:
+    - create
+    - delete
+    - deletecollection
+    - get
+    - list
+    - patch
+    - update
+    - watch
+---
+# Source: coder/templates/rbac.yaml
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: "coder"
+subjects:
+  - kind: ServiceAccount
+    name: "coder"
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: coder-workspace-perms
+---
+# Source: coder/templates/service.yaml
+apiVersion: v1
+kind: Service
+metadata:
+  name: coder
+  labels:
+    helm.sh/chart: coder-0.1.0
+    app.kubernetes.io/name: coder
+    app.kubernetes.io/instance: release-name
+    app.kubernetes.io/part-of: coder
+    app.kubernetes.io/version: "0.1.0"
+    app.kubernetes.io/managed-by: Helm
+  annotations:
+    {}
+spec:
+  type: LoadBalancer
+  sessionAffinity: None
+  ports:
+    - name: "http"
+      port: 80
+      targetPort: "http"
+      protocol: TCP
+      
+  externalTrafficPolicy: "Cluster"
+  loadBalancerClass: "test"
+  selector:
+    app.kubernetes.io/name: coder
+    app.kubernetes.io/instance: release-name
+---
+# Source: coder/templates/coder.yaml
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  annotations: {}
+  labels:
+    app.kubernetes.io/instance: release-name
+    app.kubernetes.io/managed-by: Helm
+    app.kubernetes.io/name: coder
+    app.kubernetes.io/part-of: coder
+    app.kubernetes.io/version: 0.1.0
+    helm.sh/chart: coder-0.1.0
+  name: coder
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app.kubernetes.io/instance: release-name
+      app.kubernetes.io/name: coder
+  template:
+    metadata:
+      annotations: {}
+      labels:
+        app.kubernetes.io/instance: release-name
+        app.kubernetes.io/managed-by: Helm
+        app.kubernetes.io/name: coder
+        app.kubernetes.io/part-of: coder
+        app.kubernetes.io/version: 0.1.0
+        helm.sh/chart: coder-0.1.0
+    spec:
+      affinity:
+        podAntiAffinity:
+          preferredDuringSchedulingIgnoredDuringExecution:
+          - podAffinityTerm:
+              labelSelector:
+                matchExpressions:
+                - key: app.kubernetes.io/instance
+                  operator: In
+                  values:
+                  - coder
+              topologyKey: kubernetes.io/hostname
+            weight: 1
+      containers:
+      - args:
+        - server
+        command:
+        - /opt/coder
+        env:
+        - name: CODER_HTTP_ADDRESS
+          value: 0.0.0.0:8080
+        - name: CODER_PROMETHEUS_ADDRESS
+          value: 0.0.0.0:2112
+        - name: CODER_ACCESS_URL
+          value: http://coder.default.svc.cluster.local
+        - name: KUBE_POD_IP
+          valueFrom:
+            fieldRef:
+              fieldPath: status.podIP
+        - name: CODER_DERP_SERVER_RELAY_URL
+          value: http://$(KUBE_POD_IP):8080
+        image: ghcr.io/coder/coder:latest
+        imagePullPolicy: IfNotPresent
+        lifecycle: {}
+        livenessProbe:
+          httpGet:
+            path: /healthz
+            port: http
+            scheme: HTTP
+        name: coder
+        ports:
+        - containerPort: 8080
+          name: http
+          protocol: TCP
+        readinessProbe:
+          httpGet:
+            path: /healthz
+            port: http
+            scheme: HTTP
+        resources: {}
+        securityContext:
+          allowPrivilegeEscalation: false
+          readOnlyRootFilesystem: null
+          runAsGroup: 1000
+          runAsNonRoot: true
+          runAsUser: 1000
+          seccompProfile:
+            type: RuntimeDefault
+        volumeMounts: []
+      restartPolicy: Always
+      serviceAccountName: coder
+      terminationGracePeriodSeconds: 60
+      volumes: []

helm/coder/tests/testdata/svc_loadbalancer_class.yaml

@@ -0,0 +1,6 @@
+coder:
+  image:
+    tag: latest
+
+  service:
+    loadBalancerClass: test

helm/coder/values.yaml

@@ -281,6 +281,9 @@ coder:
     # your cloud and specify it here in production to avoid accidental IP
     # address changes.
     loadBalancerIP: ""
+    # coder.service.loadBalancerClass -- The class name of the LoadBalancer. See:
+    # https://kubernetes.io/docs/concepts/services-networking/service/#load-balancer-class
+    loadBalancerClass: ""
     # coder.service.annotations -- The service annotations. See:
     # https://kubernetes.io/docs/concepts/services-networking/service/#internal-load-balancer
     annotations: {}