feat: helm integration (#12)

* fix: unify env vars names across all products

- terraform provider
- ccm
- csi

* feat(helm): add helm chart for cloud provider

.gitignore

@@ -4,9 +4,9 @@
 build/
 
 #################################
-# Secret files                  #
+# Helm files                    #
 #################################
-/releases/dev/secret.yaml
+/charts/xelon-ccm/values-dev.yaml
 
 #################################
 # Golang files                  #

charts/xelon-ccm/.helmignore

@@ -0,0 +1,30 @@
+#################################
+# Git & GitHub files             #
+#################################
+.git/
+.github/
+.gitignore
+
+#################################
+# IDE generated files           #
+#################################
+.idea/
+.vscode/
+.project
+*.iml
+
+#################################
+# Logs and temp files           #
+#################################
+*.bak
+*.log
+*.orig
+*.swp
+*~
+
+#################################
+# OS generated files            #
+#################################
+Thumbs.db
+.directory
+.DS_Store

charts/xelon-ccm/Chart.yaml

@@ -0,0 +1,7 @@
+apiVersion: v2
+name: xelon-cloud-controller-manager
+version: 0.1.0
+description: A Helm Chart for the Cloud Controller Manager on Xelon HQ
+type: application
+
+appVersion: "1.0.0"

charts/xelon-ccm/templates/NOTES.txt

@@ -0,0 +1,4 @@
+Xelon Cloud Provider {{ .Chart.AppVersion }} was deployed in namespace {{ .Release.Namespace }}.
+
+To verify that xelon-cloud-controller-manager has successfully started, run:
+    kubectl -n kube-system logs --selector app=xelon-cloud-controller-manager

charts/xelon-ccm/templates/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "xelon-ccm.name" -}}
+{{- default .Chart.Name .Values.nameOverride | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Create a default fully qualified app name.
+We truncate at 63 chars because some Kubernetes name fields are limited to this (by the DNS naming spec).
+If release name contains chart name it will be used as a full name.
+*/}}
+{{- define "xelon-ccm.fullname" -}}
+{{- if .Values.fullnameOverride }}
+{{- .Values.fullnameOverride | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- $name := default .Chart.Name .Values.nameOverride }}
+{{- if contains $name .Release.Name }}
+{{- .Release.Name | trunc 63 | trimSuffix "-" }}
+{{- else }}
+{{- printf "%s-%s" .Release.Name $name | trunc 63 | trimSuffix "-" }}
+{{- end }}
+{{- end }}
+{{- end }}
+
+{{/*
+Create chart name and version as used by the chart label.
+*/}}
+{{- define "xelon-ccm.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "xelon-ccm.labels" -}}
+helm.sh/chart: {{ include "xelon-ccm.chart" . }}
+{{ include "xelon-ccm.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "xelon-ccm.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "xelon-ccm.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

charts/xelon-ccm/templates/deployment.yaml

@@ -0,0 +1,71 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: xelon-cloud-controller-manager
+  namespace: kube-system
+spec:
+  replicas: 1
+  revisionHistoryLimit: 2
+  selector:
+    matchLabels:
+      app: xelon-cloud-controller-manager
+  template:
+    metadata:
+      labels:
+        app: xelon-cloud-controller-manager
+    spec:
+      dnsPolicy: Default
+      hostNetwork: true
+      priorityClassName: ""
+      serviceAccountName: xelon-cloud-controller-manager
+      tolerations:
+        - key: "CriticalAddonsOnly"
+          operator: "Exists"
+        - key: "node.cloudprovider.kubernetes.io/uninitialized"
+          value: "true"
+          effect: NoSchedule
+        - key: "node-role.kubernetes.io/master"
+          effect: NoSchedule
+        - key: "node.kubernetes.io/not-ready"
+          operator: Exists
+          effect: NoSchedule
+        - key: "node.kubernetes.io/unreachable"
+          operator: Exists
+          effect: NoSchedule
+      containers:
+        - name: xelon-cloud-controller-manager
+          image: {{ .Values.image.repository }}:{{ .Values.image.tag }}
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            - "--leader-elect=false"
+            - "--v=2"
+          env:
+            - name: XELON_BASE_URL
+              valueFrom:
+                secretKeyRef:
+                  name: xelon-ccm-credentials
+                  key: baseUrl
+            - name: XELON_CLIENT_ID
+              valueFrom:
+                secretKeyRef:
+                  name: xelon-ccm-credentials
+                  key: clientId
+            - name: XELON_CLOUD_ID
+              valueFrom:
+                secretKeyRef:
+                  name: xelon-ccm-credentials
+                  key: cloudId
+            - name: XELON_KUBERNETES_CLUSTER_ID
+              valueFrom:
+                secretKeyRef:
+                  name: xelon-ccm-credentials
+                  key: kubernetesClusterId
+            - name: XELON_TOKEN
+              valueFrom:
+                secretKeyRef:
+                  name: xelon-ccm-credentials
+                  key: token
+          resources:
+            requests:
+              cpu: 100m
+              memory: 50Mi

charts/xelon-ccm/templates/rbac.yaml

@@ -0,0 +1,52 @@
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  annotations:
+    rbac.authorization.kubernetes.io/autoupdate: "true"
+  name: system:xelon-cloud-controller-manager
+rules:
+  - apiGroups: [""]
+    resources: ["endpoints"]
+    verbs: ["create", "get", "list", "update", "watch"]
+  - apiGroups: [""]
+    resources: ["events"]
+    verbs: ["create", "patch", "update"]
+  - apiGroups: [""]
+    resources: ["nodes"]
+    verbs: ["*"]
+  - apiGroups: [""]
+    resources: ["nodes/status"]
+    verbs: ["patch"]
+  - apiGroups: [""]
+    resources: ["secrets"]
+    verbs: ["get", "list", "watch"]
+  - apiGroups: [""]
+    resources: ["services"]
+    verbs: ["list", "patch", "update", "watch"]
+  - apiGroups: [""]
+    resources: ["services/status"]
+    verbs: ["list", "patch", "update", "watch"]
+  - apiGroups: [""]
+    resources: ["serviceaccounts"]
+    verbs: ["create"]
+  - apiGroups: [""]
+    resources: ["persistentvolumes"]
+    verbs: ["get", "list", "update", "watch"]
+  - apiGroups: ["coordination.k8s.io"]
+    resources: ["leases"]
+    verbs: ["create", "get", "list", "update", "watch"]
+
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: system:xelon-cloud-controller-manager
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:xelon-cloud-controller-manager
+subjects:
+  - kind: ServiceAccount
+    name: xelon-cloud-controller-manager
+    namespace: kube-system

charts/xelon-ccm/templates/secret.yaml

@@ -0,0 +1,12 @@
+apiVersion: v1
+kind: Secret
+metadata:
+  name: xelon-ccm-credentials
+  namespace: kube-system
+type: Opaque
+stringData:
+  baseUrl: {{ .Values.xelon.baseUrl | quote }}
+  clientId: {{ .Values.xelon.clientId | quote }}
+  cloudId: {{ .Values.xelon.cloudId | quote }}
+  kubernetesClusterId: {{ .Values.xelon.kubernetesClusterId | quote }}
+  token: {{ .Values.xelon.token | quote }}

charts/xelon-ccm/templates/serviceaccount.yaml

@@ -0,0 +1,5 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: xelon-cloud-controller-manager
+  namespace: kube-system

charts/xelon-ccm/values.yaml

@@ -0,0 +1,17 @@
+image:
+  repository: xelonag/xelon-cloud-controller-manager
+  tag: "dev"
+  pullPolicy: Always
+
+replicaCount: 1
+
+imagePullSecrets: []
+nameOverride: ""
+fullnameOverride: ""
+
+xelon:
+  baseUrl: "https://vdc.xelon.ch/api/service/"
+  clientId: ""
+  cloudId: ""
+  kubernetesClusterId: ""
+  token: ""

cmd/xelon-cloud-controller-manager/main.go

@@ -57,7 +57,7 @@ func cloudInitializer(c *config.CompletedConfig) cloudprovider.Interface {
 	cloudConfig := c.ComponentConfig.KubeCloudShared.CloudProvider
 	cloud, err := cloudprovider.InitCloudProvider(cloudConfig.Name, cloudConfig.CloudConfigFile)
 	if err != nil {
-		klog.Errorf("failed to initizlize cloud provider: %v", err)
+		klog.Errorf("failed to initialize cloud provider: %v", err)
 		os.Exit(1)
 	}
 	if cloud == nil {

internal/xelon/cloud.go

@@ -16,7 +16,7 @@ import (
 const (
 	ProviderName string = "xelon"
 
-	xelonAPIURLEnv              string = "XELON_API_URL"
+	xelonBaseURLEnv             string = "XELON_BASE_URL"
 	xelonClientIDEnv            string = "XELON_CLIENT_ID"
 	xelonCloudIDEnv             string = "XELON_CLOUD_ID"
 	xelonKubernetesClusterIDEnv string = "XELON_KUBERNETES_CLUSTER_ID"
@@ -57,7 +57,7 @@ func newCloud() (cloudprovider.Interface, error) {
 
 	userAgent := "xelon-cloud-controller-manager"
 	opts := []xelon.ClientOption{xelon.WithUserAgent(userAgent)}
-	if apiURL := os.Getenv(xelonAPIURLEnv); apiURL != "" {
+	if apiURL := os.Getenv(xelonBaseURLEnv); apiURL != "" {
 		opts = append(opts, xelon.WithBaseURL(apiURL))
 	}
 	if clientID := os.Getenv(xelonClientIDEnv); clientID != "" {