Пример #1
0
func (c *SnapshotInspectCommand) Run(args []string) int {
	cmdFlags := flag.NewFlagSet("get", flag.ContinueOnError)
	cmdFlags.Usage = func() { c.Ui.Output(c.Help()) }
	if err := cmdFlags.Parse(args); err != nil {
		return 1
	}

	var file string

	args = cmdFlags.Args()
	switch len(args) {
	case 0:
		c.Ui.Error("Missing FILE argument")
		return 1
	case 1:
		file = args[0]
	default:
		c.Ui.Error(fmt.Sprintf("Too many arguments (expected 1, got %d)", len(args)))
		return 1
	}

	// Open the file.
	f, err := os.Open(file)
	if err != nil {
		c.Ui.Error(fmt.Sprintf("Error opening snapshot file: %s", err))
		return 1
	}
	defer f.Close()

	meta, err := snapshot.Verify(f)
	if err != nil {
		c.Ui.Error(fmt.Sprintf("Error verifying snapshot: %s", err))
	}

	var b bytes.Buffer
	tw := tabwriter.NewWriter(&b, 0, 2, 6, ' ', 0)
	fmt.Fprintf(tw, "ID\t%s\n", meta.ID)
	fmt.Fprintf(tw, "Size\t%d\n", meta.Size)
	fmt.Fprintf(tw, "Index\t%d\n", meta.Index)
	fmt.Fprintf(tw, "Term\t%d\n", meta.Term)
	fmt.Fprintf(tw, "Version\t%d\n", meta.Version)
	if err = tw.Flush(); err != nil {
		c.Ui.Error(fmt.Sprintf("Error rendering snapshot info: %s", err))
	}

	c.Ui.Info(b.String())

	return 0
}
Пример #2
0
func (c *SnapshotSaveCommand) Run(args []string) int {
	cmdFlags := flag.NewFlagSet("get", flag.ContinueOnError)
	cmdFlags.Usage = func() { c.Ui.Output(c.Help()) }
	datacenter := cmdFlags.String("datacenter", "", "")
	token := cmdFlags.String("token", "", "")
	stale := cmdFlags.Bool("stale", false, "")
	httpAddr := HTTPAddrFlag(cmdFlags)
	if err := cmdFlags.Parse(args); err != nil {
		return 1
	}

	var file string

	args = cmdFlags.Args()
	switch len(args) {
	case 0:
		c.Ui.Error("Missing FILE argument")
		return 1
	case 1:
		file = args[0]
	default:
		c.Ui.Error(fmt.Sprintf("Too many arguments (expected 1, got %d)", len(args)))
		return 1
	}

	// Create and test the HTTP client
	conf := api.DefaultConfig()
	conf.Datacenter = *datacenter
	conf.Address = *httpAddr
	conf.Token = *token
	client, err := api.NewClient(conf)
	if err != nil {
		c.Ui.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
		return 1
	}

	// Take the snapshot.
	snap, qm, err := client.Snapshot().Save(&api.QueryOptions{
		AllowStale: *stale,
	})
	if err != nil {
		c.Ui.Error(fmt.Sprintf("Error saving snapshot: %s", err))
		return 1
	}
	defer snap.Close()

	// Save the file.
	f, err := os.Create(file)
	if err != nil {
		c.Ui.Error(fmt.Sprintf("Error creating snapshot file: %s", err))
		return 1
	}
	if _, err := io.Copy(f, snap); err != nil {
		f.Close()
		c.Ui.Error(fmt.Sprintf("Error writing snapshot file: %s", err))
		return 1
	}
	if err := f.Close(); err != nil {
		c.Ui.Error(fmt.Sprintf("Error closing snapshot file after writing: %s", err))
		return 1
	}

	// Read it back to verify.
	f, err = os.Open(file)
	if err != nil {
		c.Ui.Error(fmt.Sprintf("Error opening snapshot file for verify: %s", err))
		return 1
	}
	if _, err := snapshot.Verify(f); err != nil {
		f.Close()
		c.Ui.Error(fmt.Sprintf("Error verifying snapshot file: %s", err))
		return 1
	}
	if err := f.Close(); err != nil {
		c.Ui.Error(fmt.Sprintf("Error closing snapshot file after verify: %s", err))
		return 1
	}

	c.Ui.Info(fmt.Sprintf("Saved and verified snapshot to index %d", qm.LastIndex))
	return 0
}