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// Copyright 2020 PingCAP, Inc.
//
// 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package command
import (
"crypto/tls"
operator "github.com/pingcap/tiup/pkg/cluster/operation"
"github.com/pingcap/tiup/pkg/cluster/spec"
"github.com/pingcap/tiup/pkg/cluster/task"
"github.com/spf13/cobra"
)
func newScaleInCmd() *cobra.Command {
cmd := &cobra.Command{
Use: "scale-in <cluster-name>",
Short: "Scale in a TiDB cluster",
RunE: func(cmd *cobra.Command, args []string) error {
if len(args) != 1 {
return cmd.Help()
}
clusterName := args[0]
scale := func(b *task.Builder, imetadata spec.Metadata, tlsCfg *tls.Config) {
metadata := imetadata.(*spec.ClusterMeta)
nodes := gOpt.Nodes
if !gOpt.Force {
nodes = operator.AsyncNodes(metadata.Topology, nodes, false)
}
b.ClusterOperate(metadata.Topology, operator.ScaleInOperation, gOpt, tlsCfg).
UpdateMeta(clusterName, metadata, nodes).
UpdateTopology(clusterName, tidbSpec.Path(clusterName), metadata, nodes)
}
return cm.ScaleIn(clusterName, skipConfirm, gOpt, scale)
},
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
switch len(args) {
case 0:
return shellCompGetClusterName(cm, toComplete)
default:
return nil, cobra.ShellCompDirectiveNoFileComp
}
},
}
cmd.Flags().StringSliceVarP(&gOpt.Nodes, "node", "N", nil, "Specify the nodes (required)")
cmd.Flags().Uint64Var(&gOpt.APITimeout, "transfer-timeout", 600, "Timeout in seconds when transferring PD and TiKV store leaders, also for TiCDC drain one capture")
cmd.Flags().BoolVar(&gOpt.Force, "force", false, "Force just try stop and destroy instance before removing the instance from topo")
_ = cmd.MarkFlagRequired("node")
return cmd
}
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