130 lines
2.5 KiB
Go
130 lines
2.5 KiB
Go
// Copyright (c) HashiCorp, Inc.
|
|
// SPDX-License-Identifier: MPL-2.0
|
|
|
|
package command
|
|
|
|
import (
|
|
"fmt"
|
|
"io"
|
|
"os"
|
|
"strings"
|
|
|
|
"github.com/mitchellh/cli"
|
|
"github.com/posener/complete"
|
|
)
|
|
|
|
var (
|
|
_ cli.Command = (*OperatorRaftSnapshotSaveCommand)(nil)
|
|
_ cli.CommandAutocomplete = (*OperatorRaftSnapshotSaveCommand)(nil)
|
|
)
|
|
|
|
type OperatorRaftSnapshotSaveCommand struct {
|
|
*BaseCommand
|
|
}
|
|
|
|
func (c *OperatorRaftSnapshotSaveCommand) Synopsis() string {
|
|
return "Saves a snapshot of the current state of the Raft cluster into a file"
|
|
}
|
|
|
|
func (c *OperatorRaftSnapshotSaveCommand) Help() string {
|
|
helpText := `
|
|
Usage: vault operator raft snapshot save <snapshot_file>
|
|
|
|
Saves a snapshot of the current state of the Raft cluster into a file.
|
|
|
|
$ vault operator raft snapshot save raft.snap
|
|
|
|
` + c.Flags().Help()
|
|
|
|
return strings.TrimSpace(helpText)
|
|
}
|
|
|
|
func (c *OperatorRaftSnapshotSaveCommand) Flags() *FlagSets {
|
|
set := c.flagSet(FlagSetHTTP | FlagSetOutputFormat)
|
|
|
|
return set
|
|
}
|
|
|
|
func (c *OperatorRaftSnapshotSaveCommand) AutocompleteArgs() complete.Predictor {
|
|
return complete.PredictAnything
|
|
}
|
|
|
|
func (c *OperatorRaftSnapshotSaveCommand) AutocompleteFlags() complete.Flags {
|
|
return c.Flags().Completions()
|
|
}
|
|
|
|
func (c *OperatorRaftSnapshotSaveCommand) Run(args []string) int {
|
|
f := c.Flags()
|
|
|
|
if err := f.Parse(args); err != nil {
|
|
c.UI.Error(err.Error())
|
|
return 1
|
|
}
|
|
|
|
path := ""
|
|
|
|
args = f.Args()
|
|
switch len(args) {
|
|
case 1:
|
|
path = strings.TrimSpace(args[0])
|
|
default:
|
|
c.UI.Error(fmt.Sprintf("Incorrect arguments (expected 1, got %d)", len(args)))
|
|
return 1
|
|
}
|
|
|
|
if len(path) == 0 {
|
|
c.UI.Error("Output file name is required")
|
|
return 1
|
|
}
|
|
|
|
w := &lazyOpenWriter{
|
|
openFunc: func() (io.WriteCloser, error) {
|
|
return os.OpenFile(path, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0o600)
|
|
},
|
|
}
|
|
|
|
client, err := c.Client()
|
|
if err != nil {
|
|
w.Close()
|
|
c.UI.Error(err.Error())
|
|
return 2
|
|
}
|
|
|
|
err = client.Sys().RaftSnapshot(w)
|
|
if err != nil {
|
|
w.Close()
|
|
c.UI.Error(fmt.Sprintf("Error taking the snapshot: %s", err))
|
|
return 2
|
|
}
|
|
|
|
err = w.Close()
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error taking the snapshot: %s", err))
|
|
return 2
|
|
}
|
|
return 0
|
|
}
|
|
|
|
type lazyOpenWriter struct {
|
|
openFunc func() (io.WriteCloser, error)
|
|
writer io.WriteCloser
|
|
}
|
|
|
|
func (l *lazyOpenWriter) Write(p []byte) (n int, err error) {
|
|
if l.writer == nil {
|
|
var err error
|
|
l.writer, err = l.openFunc()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
}
|
|
return l.writer.Write(p)
|
|
}
|
|
|
|
func (l *lazyOpenWriter) Close() error {
|
|
if l.writer != nil {
|
|
return l.writer.Close()
|
|
}
|
|
return nil
|
|
}
|