Merge pull request #6154 from fenglixa/add-istio

Add istio addon for minikube
kubernetes · Dec 27, 2019 · df9cac8 · df9cac8
2 parents 6b0e2ca + c2ba574
commit df9cac8
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diff --git a/cmd/minikube/cmd/config/config.go b/cmd/minikube/cmd/config/config.go
@@ -147,6 +147,18 @@ var settings = []Setting{
 		validations: []setFn{IsValidAddon},
 		callbacks:   []setFn{EnableOrDisableAddon},
 	},
+	{
+		name:        "istio-provisioner",
+		set:         SetBool,
+		validations: []setFn{IsValidAddon},
+		callbacks:   []setFn{EnableOrDisableAddon},
+	},
+	{
+		name:        "istio",
+		set:         SetBool,
+		validations: []setFn{IsValidAddon},
+		callbacks:   []setFn{EnableOrDisableAddon},
+	},
 	{
 		name:        "addon-manager",
 		set:         SetBool,

diff --git a/cmd/minikube/cmd/config/util.go b/cmd/minikube/cmd/config/util.go
@@ -32,6 +32,7 @@ import (
 	"k8s.io/minikube/pkg/minikube/machine"
 	"k8s.io/minikube/pkg/minikube/out"
 	"k8s.io/minikube/pkg/minikube/storageclass"
+	pkgutil "k8s.io/minikube/pkg/util"
 )
 
 // defaultStorageClassProvisioner is the name of the default storage class provisioner
@@ -125,6 +126,16 @@ func EnableOrDisableAddon(name string, val string) error {
 		return nil
 	}
 
+	if name == "istio" && enable {
+		minMem := 8192
+		minCpus := 4
+		memorySizeMB := pkgutil.CalculateSizeInMB(viper.GetString("memory"))
+		cpuCount := viper.GetInt("cpus")
+		if memorySizeMB < minMem || cpuCount < minCpus {
+			out.WarningT("Enable istio needs {{.minMem}} MB of memory and {{.minCpus}} CPUs.", out.V{"minMem": minMem, "minCpus": minCpus})
+		}
+	}
+
 	// TODO(r2d4): config package should not reference API, pull this out
 	api, err := machine.NewAPIClient()
 	if err != nil {

diff --git a/deploy/addons/addon-manager.yaml.tmpl b/deploy/addons/addon-manager.yaml.tmpl
@@ -33,6 +33,8 @@ spec:
       value: "5"
     - name: ADDON_MANAGER_LEADER_ELECTION
       value: "false"
+    - name: KUBECTL_EXTRA_PRUNE_WHITELIST
+      value: install.istio.io/v1alpha2/IstioControlPlane
     imagePullPolicy: IfNotPresent
     resources:
       requests:

diff --git a/deploy/addons/istio-provisioner/istio-operator.yaml.tmpl b/deploy/addons/istio-provisioner/istio-operator.yaml.tmpl
@@ -0,0 +1,271 @@
+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: istio-operator
+  labels:
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: EnsureExists 
+...
+---
+apiVersion: apiextensions.k8s.io/v1beta1
+kind: CustomResourceDefinition
+metadata:
+  name: istiocontrolplanes.install.istio.io
+  labels:
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: EnsureExists 
+spec:
+  group: install.istio.io
+  names:
+    kind: IstioControlPlane
+    listKind: IstioControlPlaneList
+    plural: istiocontrolplanes
+    singular: istiocontrolplane
+    shortNames:
+    - icp
+  scope: Namespaced
+  subresources:
+    status: {}
+  validation:
+    openAPIV3Schema:
+      properties:
+        apiVersion:
+          description: 'APIVersion defines the versioned schema of this representation
+            of an object. Servers should convert recognized schemas to the latest
+            internal value, and may reject unrecognized values.
+            More info: https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md#resources'
+          type: string
+        kind:
+          description: 'Kind is a string value representing the REST resource this
+            object represents. Servers may infer this from the endpoint the client
+            submits requests to. Cannot be updated. In CamelCase.
+            More info: https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md#types-kinds'
+          type: string
+        spec:
+          description: 'Specification of the desired state of the istio control plane resource.
+            More info: https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md#spec-and-status'
+          type: object
+        status:
+          description: 'Status describes each of istio control plane component status at the current time.
+            0 means NONE, 1 means UPDATING, 2 means HEALTHY, 3 means ERROR, 4 means RECONCILING.
+            More info: https://github.com/istio/operator/blob/master/pkg/apis/istio/v1alpha2/v1alpha2.pb.html &
+            https://github.com/kubernetes/community/blob/master/contributors/devel/sig-architecture/api-conventions.md#spec-and-status'
+          type: object
+  versions:
+  - name: v1alpha2
+    served: true
+    storage: true
+...
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  namespace: istio-operator
+  name: istio-operator
+  labels:
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: EnsureExists 
+...
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  creationTimestamp: null
+  name: istio-operator
+  labels:
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: EnsureExists 
+rules:
+# istio groups
+- apiGroups:
+  - authentication.istio.io
+  resources:
+  - '*'
+  verbs:
+  - '*'
+- apiGroups:
+  - config.istio.io
+  resources:
+  - '*'
+  verbs:
+  - '*'
+- apiGroups:
+  - install.istio.io
+  resources:
+  - '*'
+  verbs:
+  - '*'
+- apiGroups:
+  - networking.istio.io
+  resources:
+  - '*'
+  verbs:
+  - '*'
+- apiGroups:
+  - rbac.istio.io
+  resources:
+  - '*'
+  verbs:
+  - '*'
+- apiGroups:
+  - security.istio.io
+  resources:
+  - '*'
+  verbs:
+  - '*'
+# k8s groups
+- apiGroups:
+  - admissionregistration.k8s.io
+  resources:
+  - mutatingwebhookconfigurations
+  - validatingwebhookconfigurations
+  verbs:
+  - '*'
+- apiGroups:
+  - apiextensions.k8s.io
+  resources:
+  - customresourcedefinitions.apiextensions.k8s.io
+  - customresourcedefinitions
+  verbs:
+  - '*'
+- apiGroups:
+  - apps
+  - extensions
+  resources:
+  - daemonsets
+  - deployments
+  - deployments/finalizers
+  - ingresses
+  - replicasets
+  - statefulsets
+  verbs:
+  - '*'
+- apiGroups:
+  - autoscaling
+  resources:
+  - horizontalpodautoscalers
+  verbs:
+  - '*'
+- apiGroups:
+  - monitoring.coreos.com
+  resources:
+  - servicemonitors
+  verbs:
+  - get
+  - create
+- apiGroups:
+  - policy
+  resources:
+  - poddisruptionbudgets
+  verbs:
+  - '*'
+- apiGroups:
+  - rbac.authorization.k8s.io
+  resources:
+  - clusterrolebindings
+  - clusterroles
+  - roles
+  - rolebindings
+  verbs:
+  - '*'
+- apiGroups:
+  - ""
+  resources:
+  - configmaps  
+  - endpoints
+  - events
+  - namespaces
+  - pods
+  - persistentvolumeclaims
+  - secrets
+  - services
+  - serviceaccounts  
+  verbs:
+  - '*'
+...
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: istio-operator
+  labels:
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: EnsureExists 
+subjects:
+- kind: ServiceAccount
+  name: istio-operator
+  namespace: istio-operator
+roleRef:
+  kind: ClusterRole
+  name: istio-operator
+  apiGroup: rbac.authorization.k8s.io
+...
+---
+apiVersion: v1
+kind: Service
+metadata:
+  namespace: istio-operator
+  labels:
+    name: istio-operator
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: EnsureExists 
+  name: istio-operator-metrics
+spec:
+  ports:
+  - name: http-metrics
+    port: 8383
+    targetPort: 8383
+  selector:
+    name: istio-operator
+...
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  namespace: istio-operator
+  name: istio-operator
+  labels:
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: Reconcile 
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      name: istio-operator
+  template:
+    metadata:
+      labels:
+        name: istio-operator
+        kubernetes.io/minikube-addons: istio
+        addonmanager.kubernetes.io/mode: EnsureExists 
+    spec:
+      serviceAccountName: istio-operator
+      containers:
+        - name: istio-operator
+          image: docker.io/istio/operator:1.4.0
+          command:
+          - istio-operator
+          - server
+          imagePullPolicy: Always
+          resources:
+            limits:
+              cpu: 200m
+              memory: 256Mi
+            requests:
+              cpu: 50m
+              memory: 128Mi
+          env:
+            - name: WATCH_NAMESPACE
+              value: ""
+            - name: LEADER_ELECTION_NAMESPACE
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.namespace
+            - name: POD_NAME
+              valueFrom:
+                fieldRef:
+                  fieldPath: metadata.name
+            - name: OPERATOR_NAME
+              value: "istio-operator"
+...
diff --git a/deploy/addons/istio/README.md b/deploy/addons/istio/README.md
@@ -0,0 +1,26 @@
+## istio Addon
+[istio](https://istio.io/docs/setup/getting-started/) - Cloud platforms provide a wealth of benefits for the organizations that use them.
+
+### Enabling istio
+Propose to startup minikube with at least 8192 MB of memory and 4 CPUs to enable istio.
+To enable this addon, simply run:
+
+```shell script
+minikube addons enable istio
+```
+
+In a minute or so istio default components will be installed into your cluster. You could run `kubectl get po -n istio-system` to see the progress for istio installation.
+
+### Testing installation
+
+```shell script
+kubectl get po -n istio-system
+```
+
+If everything went well you shouldn't get any errors about istio being installed in your cluster. If you haven't deployed any releases `kubectl get po -n istio-system` won't return anything.
+
+### Deprecation of istio
+To disable this addon, simply run:
+```shell script
+minikube addons disable istio
+```
diff --git a/deploy/addons/istio/istio-default-profile.yaml.tmpl b/deploy/addons/istio/istio-default-profile.yaml.tmpl
@@ -0,0 +1,10 @@
+apiVersion: install.istio.io/v1alpha2
+kind: IstioControlPlane
+metadata:
+  namespace: istio-operator
+  name: example-istiocontrolplane
+  labels:
+    kubernetes.io/minikube-addons: istio
+    addonmanager.kubernetes.io/mode: Reconcile 
+spec:
+  profile: default
diff --git a/deploy/addons/layouts/istio/single.html b/deploy/addons/layouts/istio/single.html
@@ -0,0 +1,5 @@
+{{ define "main" }}
+   <div style="padding-top:20px">
+      {{ .Render "content" }}
+   </div>
+{{ end }}
diff --git a/pkg/minikube/assets/addons.go b/pkg/minikube/assets/addons.go
@@ -190,6 +190,22 @@ var Addons = map[string]*Addon{
 			"0640",
 			true),
 	}, false, "ingress"),
+	"istio-provisioner": NewAddon([]*BinAsset{
+		MustBinAsset(
+			"deploy/addons/istio-provisioner/istio-operator.yaml.tmpl",
+			vmpath.GuestAddonsDir,
+			"istio-operator.yaml",
+			"0640",
+			true),
+	}, true, "istio-provisioner"),
+	"istio": NewAddon([]*BinAsset{
+		MustBinAsset(
+			"deploy/addons/istio/istio-default-profile.yaml.tmpl",
+			vmpath.GuestAddonsDir,
+			"istio-default-profile.yaml",
+			"0640",
+			false),
+	}, false, "istio"),
 	"metrics-server": NewAddon([]*BinAsset{
 		MustBinAsset(
 			"deploy/addons/metrics-server/metrics-apiservice.yaml.tmpl",