Support Karmada addon commands

Co-authored-by: duanmeng <duanmeng_yewu@cmss.chinamobile.com>
Signed-off-by: wuyingjun <wuyingjun_yewu@cmss.chinamobile.com>

pkg/karmadactl/addons/addons.go

@@ -0,0 +1,38 @@
+package addons
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"k8s.io/kubectl/pkg/util/templates"
+
+	"github.com/karmada-io/karmada/pkg/karmadactl/addons/install"
+)
+
+var (
+	addonsExamples = templates.Examples(`
+	# Enable or disable Karmada addons to the karmada-host cluster
+	%[1]s addons enable karmada-search
+	`)
+)
+
+func init() {
+	install.Install()
+}
+
+// NewCommandAddons enable or disable Karmada addons on karmada-host cluster
+func NewCommandAddons(parentCommand string) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:     "addons",
+		Short:   "enable or disable a Karmada addon",
+		Long:    "enable or disable a Karmada addon",
+		Example: fmt.Sprintf(addonsExamples, parentCommand),
+	}
+
+	addonsParentCommand := fmt.Sprintf("%s %s", parentCommand, "addons")
+	cmd.AddCommand(NewCmdAddonsList(addonsParentCommand))
+	cmd.AddCommand(NewCmdAddonsEnable(addonsParentCommand))
+	cmd.AddCommand(NewCmdAddonsDisable(addonsParentCommand))
+
+	return cmd
+}

pkg/karmadactl/addons/descheduler/descheduler.go

@@ -0,0 +1,83 @@
+package descheduler
+
+import (
+	"context"
+	"fmt"
+
+	appsv1 "k8s.io/api/apps/v1"
+	apierrors "k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	kuberuntime "k8s.io/apimachinery/pkg/runtime"
+	clientsetscheme "k8s.io/client-go/kubernetes/scheme"
+	"k8s.io/klog/v2"
+
+	addonsinit "github.com/karmada-io/karmada/pkg/karmadactl/addons/init"
+	"github.com/karmada-io/karmada/pkg/karmadactl/cmdinit/kubernetes"
+	initutils "github.com/karmada-io/karmada/pkg/karmadactl/cmdinit/utils"
+	"github.com/karmada-io/karmada/pkg/karmadactl/utils"
+)
+
+var karmadaDeschedulerLabels = map[string]string{"app": addonsinit.DeschedulerResourceName}
+
+// AddonDescheduler describe the descheduler addon command process
+var AddonDescheduler = &addonsinit.Addon{
+	Name:    addonsinit.DeschedulerResourceName,
+	Status:  status,
+	Enable:  enableDescheduler,
+	Disable: disableDescheduler,
+}
+
+var status = func(opts *addonsinit.CommandAddonsListOption) (string, error) {
+	deployment, err := opts.KubeClientSet.AppsV1().Deployments(opts.Namespace).Get(context.TODO(), addonsinit.DeschedulerResourceName, metav1.GetOptions{})
+	if err != nil {
+		if apierrors.IsNotFound(err) {
+			return addonsinit.AddonDisabledStatus, nil
+		}
+		return addonsinit.AddonUnknownStatus, err
+	}
+	if deployment.Status.Replicas != deployment.Status.ReadyReplicas ||
+		deployment.Status.Replicas != deployment.Status.AvailableReplicas {
+		return addonsinit.AddonUnhealthyStatus, nil
+	}
+
+	return addonsinit.AddonEnabledStatus, nil
+}
+
+var enableDescheduler = func(opts *addonsinit.CommandAddonsEnableOption) error {
+	// install karmada descheduler deployment on host cluster
+	karmadaDeschedulerDeploymentBytes, err := utils.ParseTemplate(karmadaDeschedulerDeployment, DeploymentReplace{
+		Namespace: opts.Namespace,
+		Replicas:  &opts.KarmadaDeschedulerReplicas,
+		Image:     opts.KarmadaDeschedulerImage,
+	})
+	if err != nil {
+		return fmt.Errorf("error when parsing karmada descheduler deployment template :%v", err)
+	}
+
+	karmadaDeschedulerDeployment := &appsv1.Deployment{}
+	if err := kuberuntime.DecodeInto(clientsetscheme.Codecs.UniversalDecoder(), karmadaDeschedulerDeploymentBytes, karmadaDeschedulerDeployment); err != nil {
+		return fmt.Errorf("decode descheduler deployment error: %v", err)
+	}
+
+	if err := utils.CreateOrUpdateDeployment(opts.KubeClientSet, karmadaDeschedulerDeployment); err != nil {
+		return fmt.Errorf("create karmada descheduler deployment error: %v", err)
+	}
+
+	if err := kubernetes.WaitPodReady(opts.KubeClientSet, opts.Namespace, initutils.MapToString(karmadaDeschedulerLabels), opts.WaitPodReadyTimeout); err != nil {
+		return fmt.Errorf("wait karmada descheduler pod timeout: %v", err)
+	}
+
+	klog.Infof("Install karmada descheduler deployment on host cluster successfully")
+	return nil
+}
+
+var disableDescheduler = func(opts *addonsinit.CommandAddonsDisableOption) error {
+	// uninstall karmada descheduler deployment on host cluster
+	deployClient := opts.KubeClientSet.AppsV1().Deployments(opts.Namespace)
+	if err := deployClient.Delete(context.TODO(), addonsinit.DeschedulerResourceName, metav1.DeleteOptions{}); err != nil && !apierrors.IsNotFound(err) {
+		return err
+	}
+
+	klog.Infof("Uninstall karmada descheduler deployment on host cluster successfully")
+	return nil
+}

pkg/karmadactl/addons/descheduler/manifests.go

@@ -0,0 +1,59 @@
+package descheduler
+
+const karmadaDeschedulerDeployment = `
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: karmada-descheduler
+  namespace: {{ .Namespace }}
+  labels:
+    app: karmada-descheduler
+spec:
+  selector:
+    matchLabels:
+      app: karmada-descheduler
+  replicas: {{ .Replicas }}
+  template:
+    metadata:
+      labels:
+        app: karmada-descheduler
+    spec:
+      tolerations:
+        - key: node-role.kubernetes.io/master
+          operator: Exists
+      containers:
+        - name: karmada-descheduler
+          image: {{ .Image }}
+          imagePullPolicy: IfNotPresent
+          command:
+            - /bin/karmada-descheduler
+            - --kubeconfig=/etc/kubeconfig
+            - --bind-address=0.0.0.0
+            - --leader-elect-resource-namespace={{ .Namespace }}
+            - --v=4
+          livenessProbe:
+            httpGet:
+              path: /healthz
+              port: 10358
+              scheme: HTTP
+            failureThreshold: 3
+            initialDelaySeconds: 15
+            periodSeconds: 15
+            timeoutSeconds: 5
+          volumeMounts:
+            - name: kubeconfig
+              subPath: kubeconfig
+              mountPath: /etc/kubeconfig
+      volumes:
+        - name: kubeconfig
+          secret:
+            secretName: kubeconfig
+`
+
+// DeploymentReplace is a struct to help to concrete
+// the karamda-descheduler deployment bytes with the deployment template
+type DeploymentReplace struct {
+	Namespace string
+	Replicas  *int32
+	Image     string
+}

pkg/karmadactl/addons/disable.go

@@ -0,0 +1,61 @@
+package addons
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"k8s.io/kubectl/pkg/util/templates"
+
+	addonsinit "github.com/karmada-io/karmada/pkg/karmadactl/addons/init"
+)
+
+var (
+	disableExample = templates.Examples(`
+	# Disable Karmada all addons except karmada-scheduler-estimator on Kubernetes cluster
+	%[1]s disable all
+	
+	# Disable Karmada search on Kubernetes cluster
+	%[1]s disable karmada-search
+	
+	# Disable Karmada search and descheduler on Kubernetes cluster
+	%[1]s disable karmada-search karmada-descheduler
+	
+	# Disable karmada search and scheduler-estimator of member1 cluster to the kubernetes cluster
+	%[1]s disable karmada-search karmada-scheduler-estimator --cluster member1
+
+	# Specify the host cluster kubeconfig
+	%[1]s disable Karmada-search --kubeconfig /root/.kube/config
+
+	# Specify the Karmada control plane kubeconfig
+	%[1]s disable karmada-search --karmada-kubeconfig /etc/karmada/karmada-apiserver.config
+
+	# Sepcify the namespace where Karmada components are installed
+	%[1]s disable karmada-search --namespace karmada-system
+	`)
+)
+
+// NewCmdAddonsDisable disable Karmada addons on Kubernetes
+func NewCmdAddonsDisable(parentCommand string) *cobra.Command {
+	opts := addonsinit.CommandAddonsDisableOption{}
+	cmd := &cobra.Command{
+		Use:          "disable",
+		Short:        "disable karmada addons from Kubernetes",
+		Long:         "disable Karmada addons from Kubernetes",
+		Example:      fmt.Sprintf(disableExample, parentCommand),
+		SilenceUsage: true,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if err := opts.Complete(); err != nil {
+				return err
+			}
+			if err := opts.Validate(args); err != nil {
+				return err
+			}
+			if err := opts.Run(args); err != nil {
+				return err
+			}
+			return nil
+		},
+	}
+	opts.GlobalCommandOptions.AddFlags(cmd.PersistentFlags())
+	return cmd
+}

pkg/karmadactl/addons/enable.go

@@ -0,0 +1,84 @@
+package addons
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+	"k8s.io/klog/v2"
+	"k8s.io/kubectl/pkg/util/templates"
+
+	addonsinit "github.com/karmada-io/karmada/pkg/karmadactl/addons/init"
+	"github.com/karmada-io/karmada/pkg/version"
+)
+
+var (
+	enableExample = templates.Examples(`
+	# Enable Karmada all addons except karmada-scheduler-estimator to Kubernetes cluster 
+	%[1]s enable all
+	
+	# Enable Karmada search to the Kubernetes cluster
+	%[1]s enable karmada-search
+	
+	# Enable karmada search and descheduler to the kubernetes cluster
+	%[1]s enable karmada-search karmada-descheduler
+
+	# Enable karmada search and scheduler-estimator of cluster member1 to the kubernetes cluster
+	%[1]s enable karmada-search karmada-scheduler-estimator -C member1 --member-kubeconfig /etc/karmada/member.config --member-context member1
+
+	# Specify the host cluster kubeconfig
+	%[1]s enable karmada-search --kubeconfig /root/.kube/config
+
+	# Specify the Karmada control plane kubeconfig
+	%[1]s enable karmada-search --karmada-kubeconfig /etc/karmada/karmada-apiserver.config
+
+	# Specify the karmada-search image
+	%[1]s enable karmada-search --karmada-search-image swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-scheduler-estimator:latest
+
+	# Sepcify the namespace where Karmada components are installed
+	%[1]s enable karmada-search --namespace karmada-system
+	`)
+)
+
+// NewCmdAddonsEnable enable Karmada addons on Kubernetes
+func NewCmdAddonsEnable(parentCommand string) *cobra.Command {
+	opts := addonsinit.CommandAddonsEnableOption{}
+	cmd := &cobra.Command{
+		Use:          "enable",
+		Short:        "enable Karmada addons from Kubernetes",
+		Long:         "enable Karmada addons from Kubernetes",
+		Example:      fmt.Sprintf(enableExample, parentCommand),
+		SilenceUsage: true,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			if err := opts.Complete(); err != nil {
+				return err
+			}
+			if err := opts.Validate(args); err != nil {
+				return err
+			}
+			if err := opts.Run(args); err != nil {
+				return err
+			}
+			return nil
+		},
+	}
+
+	releaseVer, err := version.ParseGitVersion(version.Get().GitVersion)
+	if err != nil {
+		klog.Infof("No default release version found. build version: %s", version.Get().String())
+		releaseVer = &version.ReleaseVersion{} // initialize to avoid panic
+	}
+
+	flags := cmd.PersistentFlags()
+	opts.GlobalCommandOptions.AddFlags(flags)
+	flags.IntVar(&opts.WaitPodReadyTimeout, "pod-timeout", 30, "Wait pod ready timeout.")
+	flags.IntVar(&opts.WaitAPIServiceReadyTimeout, "apiservice-timeout", 30, "Wait apiservice ready timeout.")
+	flags.StringVar(&opts.KarmadaSearchImage, "karmada-search-image", fmt.Sprintf("swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-search:%s", releaseVer.PatchRelease()), "karmada search image")
+	flags.Int32Var(&opts.KarmadaSearchReplicas, "karmada-search-replicas", 1, "Karmada search replica set")
+	flags.StringVar(&opts.KarmadaDeschedulerImage, "karmada-descheduler-image", fmt.Sprintf("swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-descheduler:%s", releaseVer.PatchRelease()), "karmada descheduler image")
+	flags.Int32Var(&opts.KarmadaDeschedulerReplicas, "karmada-descheduler-replicas", 1, "Karmada descheduler replica set")
+	flags.StringVar(&opts.KarmadaEstimatorImage, "karmada-estimator-image", fmt.Sprintf("swr.ap-southeast-1.myhuaweicloud.com/karmada/karmada-scheduler-estimator:%s", releaseVer.PatchRelease()), "karmada scheduler-estimator image")
+	flags.Int32Var(&opts.KarmadaEstimatorReplicas, "karmada-estimator-replicas", 1, "Karmada scheduler estimator replica set")
+	flags.StringVar(&opts.MemberKubeConfig, "member-kubeconfig", "", "Member cluster's kubeconfig which to deploy scheduler estimator")
+	flags.StringVar(&opts.MemberContext, "member-context", "", "Member cluster's context which to deploy scheduler estimator")
+	return cmd
+}