feat: add profile/install/uninstall/upgrade command (#538)

pkg/cmd/hgctl/upgrade.go

@@ -0,0 +1,49 @@
+// 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 (
+	"github.com/alibaba/higress/pkg/cmd/options"
+	"github.com/spf13/cobra"
+)
+
+type upgradeArgs struct {
+	*InstallArgs
+}
+
+func addUpgradeFlags(cmd *cobra.Command, args *upgradeArgs) {
+	cmd.PersistentFlags().StringArrayVarP(&args.Set, "set", "s", nil, setFlagHelpStr)
+	cmd.PersistentFlags().StringVarP(&args.ManifestsPath, "manifests", "d", "", manifestsFlagHelpStr)
+}
+
+// newUpgradeCmd upgrades Istio control plane in-place with eligibility checks.
+func newUpgradeCmd() *cobra.Command {
+	upgradeArgs := &upgradeArgs{
+		InstallArgs: &InstallArgs{},
+	}
+	upgradeCmd := &cobra.Command{
+		Use:   "upgrade",
+		Short: "Upgrade Higress in-place",
+		Long: "The upgrade command is an alias for the install command" +
+			" that performs additional upgrade-related checks.",
+		RunE: func(cmd *cobra.Command, args []string) (e error) {
+			return Install(cmd.OutOrStdout(), upgradeArgs.InstallArgs)
+		},
+	}
+	addUpgradeFlags(upgradeCmd, upgradeArgs)
+	flags := upgradeCmd.Flags()
+	options.AddKubeConfigFlags(flags)
+	return upgradeCmd
+}