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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 (
"path/filepath"
"github.com/pingcap/tiup/pkg/cluster/manager"
operator "github.com/pingcap/tiup/pkg/cluster/operation"
"github.com/pingcap/tiup/pkg/cluster/spec"
"github.com/pingcap/tiup/pkg/cluster/task"
"github.com/pingcap/tiup/pkg/utils"
"github.com/spf13/cobra"
)
func newScaleOutCmd() *cobra.Command {
opt := manager.DeployOptions{
IdentityFile: filepath.Join(utils.UserHome(), ".ssh", "id_rsa"),
}
cmd := &cobra.Command{
Use: "scale-out <cluster-name> [topology.yaml]",
Short: "Scale out a TiDB cluster",
SilenceUsage: true,
RunE: func(cmd *cobra.Command, args []string) error {
var (
clusterName string
topoFile string
)
// tiup cluster scale-out --stage1 --stage2
// is equivalent to
// tiup cluster scale-out
if opt.Stage1 && opt.Stage2 {
opt.Stage1 = false
opt.Stage2 = false
}
if opt.Stage2 && len(args) == 1 {
clusterName = args[0]
} else {
if len(args) != 2 {
return cmd.Help()
}
clusterName = args[0]
topoFile = args[1]
}
return cm.ScaleOut(
clusterName,
topoFile,
postScaleOutHook,
final,
opt,
skipConfirm,
gOpt,
)
},
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
switch len(args) {
case 0:
return shellCompGetClusterName(cm, toComplete)
case 1:
return nil, cobra.ShellCompDirectiveDefault
default:
return nil, cobra.ShellCompDirectiveNoFileComp
}
},
}
cmd.Flags().StringVarP(&opt.User, "user", "u", utils.CurrentUser(), "The user name to login via SSH. The user must has root (or sudo) privilege.")
cmd.Flags().BoolVarP(&opt.SkipCreateUser, "skip-create-user", "", false, "(EXPERIMENTAL) Skip creating the user specified in topology.")
cmd.Flags().StringVarP(&opt.IdentityFile, "identity_file", "i", opt.IdentityFile, "The path of the SSH identity file. If specified, public key authentication will be used.")
cmd.Flags().BoolVarP(&opt.UsePassword, "password", "p", false, "Use password of target hosts. If specified, password authentication will be used.")
cmd.Flags().BoolVarP(&opt.NoLabels, "no-labels", "", false, "Don't check TiKV labels")
cmd.Flags().BoolVarP(&opt.Stage1, "stage1", "", false, "Don't start the new instance after scale-out, need to manually execute cluster scale-out --stage2")
cmd.Flags().BoolVarP(&opt.Stage2, "stage2", "", false, "Start the new instance and init config after scale-out --stage1")
return cmd
}
func final(builder *task.Builder, name string, meta spec.Metadata, gOpt operator.Options) {
builder.UpdateTopology(name,
tidbSpec.Path(name),
meta.(*spec.ClusterMeta),
nil, /* deleteNodeIds */
)
}
func postScaleOutHook(builder *task.Builder, newPart spec.Topology, gOpt operator.Options) {
postDeployHook(builder, newPart, gOpt)
}
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