chore: add charts for mcs controller manager

charts/mcs-controller-manager/.helmignore

@@ -0,0 +1,23 @@
+# Patterns to ignore when building packages.
+# This supports shell glob matching, relative path matching, and
+# negation (prefixed with !). Only one pattern per line.
+.DS_Store
+# Common VCS dirs
+.git/
+.gitignore
+.bzr/
+.bzrignore
+.hg/
+.hgignore
+.svn/
+# Common backup files
+*.swp
+*.bak
+*.tmp
+*.orig
+*~
+# Various IDEs
+.project
+.idea/
+*.tmproj
+.vscode/

charts/mcs-controller-manager/Chart.yaml

@@ -0,0 +1,24 @@
+apiVersion: v2
+name: mcs-controller-manager
+description: A Helm chart for Kubernetes
+
+# A chart can be either an 'application' or a 'library' chart.
+#
+# Application charts are a collection of templates that can be packaged into versioned archives
+# to be deployed.
+#
+# Library charts provide useful utilities or functions for the chart developer. They're included as
+# a dependency of application charts to inject those utilities and functions into the rendering
+# pipeline. Library charts do not define any templates and therefore cannot be deployed.
+type: application
+
+# This is the chart version. This version number should be incremented each time you make changes
+# to the chart and its templates, including the app version.
+# Versions are expected to follow Semantic Versioning (https://semver.org/)
+version: 0.1.0
+
+# This is the version number of the application being deployed. This version number should be
+# incremented each time you make changes to the application. Versions are not expected to
+# follow Semantic Versioning. They should reflect the version the application is using.
+# It is recommended to use it with quotes.
+appVersion: "v0.1.0"

charts/mcs-controller-manager/README.md

@@ -0,0 +1,42 @@
+# Azure Fleet MultiClusterService Controller Manager Helm Chart
+
+## Install CRD
+
+```bash
+# Go to root folder of fleet-networking repo
+cd <REPO_DIRECTORY>/fleet-networking
+kubectl apply -f config/crd/*
+```
+
+## Install Chart
+
+```bash
+# Helm install under root directory of fleet-networking repo
+helm install mcs-controller-manager ./charts/mcs-controller-manager/
+```
+
+_See [helm install](https://helm.sh/docs/helm/helm_install/) for command documentation._
+
+## Upgrade Chart
+
+```bash
+# Helm upgrade under root directory of fleet-networking repo
+helm upgrade mcs-controller-manager ./charts/mcs-controller-manager/
+```
+
+## Parameters
+
+| Parameter | Description | Default |
+|:-|:-|:-|
+| replicaCount | The number of mcs-controller-manager replicas to deploy | `1` |
+| image.repository | Image repository | `ghcr.io/azure/fleet-networking/mcs-controller-manager` |
+| image.pullPolicy | Image pullPolicy | `IfNotPresent` |
+| image.tag | The image tag to use | `v0.1.0` |
+| logVerbosity | Log level. Uses V logs (klog) | `2` |
+| fleetSystemNamespace | Namespace that this Helm chart is installed on and reserved by fleet. | `fleet-system` |
+| resources | The resource request/limits for the container image | limits: 500m CPU, 1Gi, requests: 100m CPU, 128Mi |
+| podAnnotations | Pod Annotations | `{}` |
+| affinity | The node affinity to use for pod scheduling | `{}` |
+| tolerations | The toleration to use for pod scheduling | `[]` |
+
+## Contributing Changes

charts/mcs-controller-manager/templates/_helpers.tpl

@@ -0,0 +1,51 @@
+{{/*
+Expand the name of the chart.
+*/}}
+{{- define "mcs-controller-manager.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 "mcs-controller-manager.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 "mcs-controller-manager.chart" -}}
+{{- printf "%s-%s" .Chart.Name .Chart.Version | replace "+" "_" | trunc 63 | trimSuffix "-" }}
+{{- end }}
+
+{{/*
+Common labels
+*/}}
+{{- define "mcs-controller-manager.labels" -}}
+helm.sh/chart: {{ include "mcs-controller-manager.chart" . }}
+{{ include "mcs-controller-manager.selectorLabels" . }}
+{{- if .Chart.AppVersion }}
+app.kubernetes.io/version: {{ .Chart.AppVersion | quote }}
+{{- end }}
+app.kubernetes.io/managed-by: {{ .Release.Service }}
+{{- end }}
+
+{{/*
+Selector labels
+*/}}
+{{- define "mcs-controller-manager.selectorLabels" -}}
+app.kubernetes.io/name: {{ include "mcs-controller-manager.name" . }}
+app.kubernetes.io/instance: {{ .Release.Name }}
+{{- end }}

charts/mcs-controller-manager/templates/deployment.yaml

@@ -0,0 +1,56 @@
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: {{ include "mcs-controller-manager.fullname" . }}
+  namespace: {{ .Values.fleetSystemNamespace }}
+  labels:
+    {{- include "mcs-controller-manager.labels" . | nindent 4 }}
+spec:
+  replicas: {{ .Values.replicaCount }}
+  selector:
+    matchLabels:
+      {{- include "mcs-controller-manager.selectorLabels" . | nindent 6 }}
+  template:
+    metadata:
+      {{- with .Values.podAnnotations }}
+      annotations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      labels:
+        {{- include "mcs-controller-manager.selectorLabels" . | nindent 8 }}
+    spec:
+      serviceAccountName: {{ include "mcs-controller-manager.fullname" . }}-sa
+      containers:
+        - name: {{ .Chart.Name }}
+          image: "{{ .Values.image.repository }}:{{ .Values.image.tag | default .Chart.AppVersion }}"
+          imagePullPolicy: {{ .Values.image.pullPolicy }}
+          args:
+            - --leader-elect={{ .Values.enableLeaderElection }}
+            - --fleet-system-namespace={{ .Values.fleetSystemNamespace }}
+            - --v={{ .Values.logVerbosity }}
+          ports:
+          - containerPort: 8081
+            name: healthz
+            protocol: TCP
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: healthz
+          readinessProbe:
+            httpGet:
+              path: /readyz
+              port: healthz
+          resources:
+            {{- toYaml .Values.resources | nindent 12 }}
+      {{- with .Values.nodeSelector }}
+      nodeSelector:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.affinity }}
+      affinity:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}
+      {{- with .Values.tolerations }}
+      tolerations:
+        {{- toYaml . | nindent 8 }}
+      {{- end }}

charts/mcs-controller-manager/templates/rbac.yaml

@@ -0,0 +1,70 @@
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  creationTimestamp: null
+  name: {{ include "mcs-controller-manager.fullname" . }}-role
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - services
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - networking.fleet.azure.com
+  resources:
+  - multiclusterservices
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+- apiGroups:
+  - networking.fleet.azure.com
+  resources:
+  - multiclusterservices/finalizers
+  verbs:
+  - get
+  - update
+- apiGroups:
+  - networking.fleet.azure.com
+  resources:
+  - multiclusterservices/status
+  verbs:
+  - get
+  - patch
+  - update
+- apiGroups:
+  - networking.fleet.azure.com
+  resources:
+  - serviceimports
+  verbs:
+  - create
+  - delete
+  - get
+  - list
+  - patch
+  - update
+  - watch
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: {{ include "mcs-controller-manager.fullname" . }}-role-binding
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: {{ include "mcs-controller-manager.fullname" . }}-role
+subjects:
+  - kind: ServiceAccount
+    name: {{ include "mcs-controller-manager.fullname" . }}-sa
+    namespace: {{ .Values.fleetSystemNamespace }}

charts/mcs-controller-manager/templates/serviceaccount.yaml

@@ -0,0 +1,7 @@
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: {{ include "mcs-controller-manager.fullname" . }}-sa
+  namespace: {{ .Values.fleetSystemNamespace }}
+  labels:
+    {{- include "mcs-controller-manager.labels" . | nindent 4 }}

charts/mcs-controller-manager/values.yaml

@@ -0,0 +1,31 @@
+# Default values for mcs-controller-manager.
+# This is a YAML-formatted file.
+# Declare variables to be passed into your templates.
+
+replicaCount: 1
+
+image:
+  repository: ghcr.io/azure/fleet-networking/mcs-controller-manager
+  pullPolicy: IfNotPresent
+  # Overrides the image tag whose default is the chart appVersion.
+  tag: "v0.1.0"
+
+logVerbosity: 2
+
+fleetSystemNamespace: fleet-system
+
+resources:
+  limits:
+    cpu: 500m
+    memory: 1Gi
+  requests:
+    cpu: 100m
+    memory: 128Mi
+
+podAnnotations: {}
+
+nodeSelector: {}
+
+tolerations: []
+
+affinity: {}

cmd/hub-net-controller-manager/main.go

@@ -50,7 +50,7 @@ func main() {
 	var probeAddr string
 	flag.StringVar(&metricsAddr, "metrics-bind-address", ":8080", "The address the metric endpoint binds to.")
 	flag.StringVar(&probeAddr, "health-probe-bind-address", ":8081", "The address the probe endpoint binds to.")
-	flag.BoolVar(&enableLeaderElection, "leader-elect", false,
+	flag.BoolVar(&enableLeaderElection, "leader-elect", true,
 		"Enable leader election for controller manager. "+
 			"Enabling this will ensure there is only one active controller manager.")
 	opts := zap.Options{