mirror of
https://github.com/etcd-io/etcd.git
synced 2024-09-27 06:25:44 +00:00
76 lines
2.1 KiB
Go
76 lines
2.1 KiB
Go
// Copyright 2016 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package command
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import (
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"context"
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"fmt"
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"github.com/spf13/cobra"
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"go.uber.org/zap"
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"go.etcd.io/etcd/client/pkg/v3/logutil"
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snapshot "go.etcd.io/etcd/client/v3/snapshot"
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"go.etcd.io/etcd/pkg/v3/cobrautl"
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)
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// NewSnapshotCommand returns the cobra command for "snapshot".
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func NewSnapshotCommand() *cobra.Command {
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cmd := &cobra.Command{
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Use: "snapshot <subcommand>",
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Short: "Manages etcd node snapshots",
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}
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cmd.AddCommand(NewSnapshotSaveCommand())
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return cmd
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}
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func NewSnapshotSaveCommand() *cobra.Command {
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return &cobra.Command{
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Use: "save <filename>",
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Short: "Stores an etcd node backend snapshot to a given file",
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Run: snapshotSaveCommandFunc,
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}
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}
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func snapshotSaveCommandFunc(cmd *cobra.Command, args []string) {
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if len(args) != 1 {
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err := fmt.Errorf("snapshot save expects one argument")
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cobrautl.ExitWithError(cobrautl.ExitBadArgs, err)
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}
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lg, err := logutil.CreateDefaultZapLogger(zap.InfoLevel)
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if err != nil {
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cobrautl.ExitWithError(cobrautl.ExitError, err)
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}
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cfg := mustClientCfgFromCmd(cmd)
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// if user does not specify "--command-timeout" flag, there will be no timeout for snapshot save command
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ctx, cancel := context.WithCancel(context.Background())
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if isCommandTimeoutFlagSet(cmd) {
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ctx, cancel = commandCtx(cmd)
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}
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defer cancel()
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path := args[0]
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version, err := snapshot.SaveWithVersion(ctx, lg, *cfg, path)
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if err != nil {
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cobrautl.ExitWithError(cobrautl.ExitInterrupted, err)
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}
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fmt.Printf("Snapshot saved at %s\n", path)
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if version != "" {
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fmt.Printf("Server version %s\n", version)
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}
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}
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