upgrade to istio 1.19 (#1211)

Co-authored-by: CH3CHO <ch3cho@qq.com>
Co-authored-by: rinfx <893383980@qq.com>

hgctl/pkg/uninstall.go

@@ -0,0 +1,140 @@
+// Copyright (c) 2022 Alibaba Group Holding Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package hgctl
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+
+	"github.com/alibaba/higress/hgctl/pkg/helm"
+	"github.com/alibaba/higress/hgctl/pkg/installer"
+	"github.com/alibaba/higress/hgctl/pkg/util"
+	"github.com/alibaba/higress/pkg/cmd/options"
+	"github.com/spf13/cobra"
+)
+
+type uninstallArgs struct {
+	// purgeResources delete  all of installed resources.
+	purgeResources bool
+}
+
+func addUninstallFlags(cmd *cobra.Command, args *uninstallArgs) {
+	cmd.PersistentFlags().BoolVarP(&args.purgeResources, "purge-resources", "", false,
+		"Delete  all of IstioAPI,GatewayAPI resources")
+}
+
+// newUninstallCmd command uninstalls Istio from a cluster
+func newUninstallCmd() *cobra.Command {
+	uiArgs := &uninstallArgs{}
+	uninstallCmd := &cobra.Command{
+		Use:   "uninstall",
+		Short: "Uninstall higress from a cluster",
+		Long:  "The uninstall command uninstalls higress from a cluster or local environment",
+		Example: `# Uninstall higress 
+  hgctl uninstal
+  
+  # Uninstall higress, istioAPI and GatewayAPI from a cluster
+  hgctl uninstall --purge-resources
+`,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			return uninstall(cmd.OutOrStdout(), uiArgs)
+		},
+	}
+	addUninstallFlags(uninstallCmd, uiArgs)
+	flags := uninstallCmd.Flags()
+	options.AddKubeConfigFlags(flags)
+	return uninstallCmd
+}
+
+// uninstall uninstalls control plane by either pruning by target revision or deleting specified manifests.
+func uninstall(writer io.Writer, uiArgs *uninstallArgs) error {
+	fmt.Fprintf(writer, "⌛️ Checking higress installed profiles...\n")
+	profileContexts, _ := getAllProfiles()
+	if len(profileContexts) == 0 {
+		fmt.Fprintf(writer, "\nHigress hasn't been installed yet!\n")
+		return nil
+	}
+
+	setFlags := make([]string, 0)
+
+	profileContext := promptProfileContexts(writer, profileContexts)
+	_, profile, err := helm.GenProfileFromProfileContent(util.ToYAML(profileContext.Profile), "", setFlags)
+	if err != nil {
+		return err
+	}
+
+	fmt.Fprintf(writer, "\n🧐 Validating Profile: \"%s\" \n", profileContext.PathOrName)
+	err = profile.Validate()
+	if err != nil {
+		return err
+	}
+
+	if !promptUninstall(writer) {
+		return nil
+	}
+
+	if profile.Global.Install == helm.InstallK8s || profile.Global.Install == helm.InstallLocalK8s {
+		if profile.Global.EnableIstioAPI {
+			profile.Global.EnableIstioAPI = uiArgs.purgeResources
+		}
+		if profile.Global.EnableGatewayAPI {
+			profile.Global.EnableGatewayAPI = uiArgs.purgeResources
+		}
+	}
+
+	err = uninstallManifests(profile, writer, uiArgs)
+	if err != nil {
+		return err
+	}
+
+	// Remove "~/.hgctl/profiles/install.yaml"
+	if oldProfileName, isExisted := installer.GetInstalledYamlPath(); isExisted {
+		_ = os.Remove(oldProfileName)
+	}
+
+	return nil
+}
+
+func promptUninstall(writer io.Writer) bool {
+	answer := ""
+	for {
+		fmt.Fprintf(writer, "All Higress resources will be uninstalled from the cluster. \nProceed? (y/N)")
+		fmt.Scanln(&answer)
+		if strings.TrimSpace(answer) == "y" {
+			fmt.Fprintf(writer, "\n")
+			return true
+		}
+		if strings.TrimSpace(answer) == "N" {
+			fmt.Fprintf(writer, "Cancelled.\n")
+			return false
+		}
+	}
+}
+
+func uninstallManifests(profile *helm.Profile, writer io.Writer, uiArgs *uninstallArgs) error {
+	installer, err := installer.NewInstaller(profile, writer, false, false, installer.UninstallInstallerMode)
+	if err != nil {
+		return err
+	}
+
+	err = installer.UnInstall()
+	if err != nil {
+		return err
+	}
+
+	return nil
+}