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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 (
"context"
"fmt"
"os"
"path/filepath"
"github.com/fatih/color"
"github.com/pingcap/tiup/pkg/cluster/ansible"
"github.com/pingcap/tiup/pkg/cluster/ctxt"
"github.com/pingcap/tiup/pkg/cluster/spec"
"github.com/pingcap/tiup/pkg/tui"
"github.com/pingcap/tiup/pkg/utils"
"github.com/spf13/cobra"
)
func newImportCmd() *cobra.Command {
var (
ansibleDir string
inventoryFileName string
ansibleCfgFile string
rename string
noBackup bool
)
cmd := &cobra.Command{
Use: "import",
Short: "Import an exist TiDB cluster from TiDB-Ansible",
RunE: func(cmd *cobra.Command, args []string) error {
// Use current directory as ansibleDir by default
if ansibleDir == "" {
cwd, err := os.Getwd()
if err != nil {
return err
}
ansibleDir = cwd
}
ctx := ctxt.New(
context.Background(),
gOpt.Concurrency,
log,
)
// migrate cluster metadata from Ansible inventory
clsName, clsMeta, inv, err := ansible.ReadInventory(ctx, ansibleDir, inventoryFileName)
if err != nil {
return err
}
// Rename the imported cluster
if rename != "" {
clsName = rename
}
if clsName == "" {
return fmt.Errorf("cluster name should not be empty")
}
exist, err := tidbSpec.Exist(clsName)
if err != nil {
return err
}
if exist {
return errDeployNameDuplicate.
New("Cluster name '%s' is duplicated", clsName).
WithProperty(tui.SuggestionFromFormat(
"%s", fmt.Sprintf("Please use --rename `NAME` to specify another name (You can use `%s list` to see all clusters)", tui.OsArgs0())))
}
// prompt for backups
backupDir := spec.ClusterPath(clsName, "ansible-backup")
backupFile := filepath.Join(ansibleDir, fmt.Sprintf("tiup-%s.bak", inventoryFileName))
prompt := fmt.Sprintf("The ansible directory will be moved to %s after import.", backupDir)
if noBackup {
log.Infof("The '--no-backup' flag is set, the ansible directory will be kept at its current location.")
prompt = fmt.Sprintf("The inventory file will be renamed to %s after import.", backupFile)
}
log.Warnf("TiDB-Ansible and TiUP Cluster can NOT be used together, please DO NOT try to use ansible to manage the imported cluster anymore to avoid metadata conflict.")
log.Infof("%s", prompt)
if !skipConfirm {
err = tui.PromptForConfirmOrAbortError("Do you want to continue? [y/N]: ")
if err != nil {
return err
}
}
if !skipConfirm {
err = tui.PromptForConfirmOrAbortError(
"Prepared to import TiDB %s cluster %s.\nDo you want to continue? [y/N]:",
clsMeta.Version,
clsName)
if err != nil {
return err
}
}
// parse config and import nodes
if err = ansible.ParseAndImportInventory(
ctx,
ansibleDir,
ansibleCfgFile,
clsMeta,
inv,
gOpt.SSHTimeout,
gOpt.SSHType,
); err != nil {
return err
}
// copy SSH key to TiUP profile directory
if err = utils.MkdirAll(spec.ClusterPath(clsName, "ssh"), 0755); err != nil {
return err
}
srcKeyPathPriv := ansible.SSHKeyPath()
srcKeyPathPub := srcKeyPathPriv + ".pub"
dstKeyPathPriv := spec.ClusterPath(clsName, "ssh", "id_rsa")
dstKeyPathPub := dstKeyPathPriv + ".pub"
if err = utils.Copy(srcKeyPathPriv, dstKeyPathPriv); err != nil {
return err
}
if err = utils.Copy(srcKeyPathPub, dstKeyPathPub); err != nil {
return err
}
// copy config files form deployment servers
if err = ansible.ImportConfig(ctx, clsName, clsMeta, gOpt); err != nil {
return err
}
// copy config detail to meta file
if err = ansible.LoadConfig(clsName, clsMeta); err != nil {
return err
}
if err = spec.SaveClusterMeta(clsName, clsMeta); err != nil {
return err
}
// comment config to avoid duplicated copy
if err = ansible.CommentConfig(clsName); err != nil {
return err
}
// backup ansible files
if noBackup {
// rename original TiDB-Ansible inventory file
if err = utils.Move(filepath.Join(ansibleDir, inventoryFileName), backupFile); err != nil {
return err
}
log.Infof("Ansible inventory renamed to %s.", color.HiCyanString(backupFile))
} else {
// move original TiDB-Ansible directory to a staged location
if err = utils.Move(ansibleDir, backupDir); err != nil {
return err
}
log.Infof("Ansible inventory saved in %s.", color.HiCyanString(backupDir))
}
log.Infof("Cluster %s imported.", clsName)
fmt.Printf("Try `%s` to show node list and status of the cluster.\n",
color.HiYellowString("%s display %s", tui.OsArgs0(), clsName))
return nil
},
}
cmd.Flags().StringVarP(&ansibleDir, "dir", "d", "", "The path to TiDB-Ansible directory")
cmd.Flags().StringVar(&inventoryFileName, "inventory", ansible.AnsibleInventoryFile, "The name of inventory file")
cmd.Flags().StringVar(&ansibleCfgFile, "ansible-config", ansible.AnsibleConfigFile, "The path to ansible.cfg")
cmd.Flags().StringVarP(&rename, "rename", "r", "", "Rename the imported cluster to `NAME`")
cmd.Flags().BoolVar(&noBackup, "no-backup", false, "Don't backup ansible dir, useful when there're multiple inventory files")
return cmd
}
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