mirror of https://github.com/status-im/consul.git
108 lines
2.3 KiB
Go
108 lines
2.3 KiB
Go
package restore
|
|
|
|
import (
|
|
"flag"
|
|
"fmt"
|
|
"os"
|
|
|
|
"github.com/hashicorp/consul/command/flags"
|
|
"github.com/mitchellh/cli"
|
|
)
|
|
|
|
func New(ui cli.Ui) *cmd {
|
|
c := &cmd{UI: ui}
|
|
c.init()
|
|
return c
|
|
}
|
|
|
|
type cmd struct {
|
|
UI cli.Ui
|
|
flags *flag.FlagSet
|
|
http *flags.HTTPFlags
|
|
help string
|
|
}
|
|
|
|
func (c *cmd) init() {
|
|
c.flags = flag.NewFlagSet("", flag.ContinueOnError)
|
|
c.http = &flags.HTTPFlags{}
|
|
flags.Merge(c.flags, c.http.ClientFlags())
|
|
flags.Merge(c.flags, c.http.ServerFlags())
|
|
c.help = flags.Usage(help, c.flags)
|
|
}
|
|
|
|
func (c *cmd) Run(args []string) int {
|
|
if err := c.flags.Parse(args); err != nil {
|
|
return 1
|
|
}
|
|
|
|
var file string
|
|
|
|
args = c.flags.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
|
|
client, err := c.http.APIClient()
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error connecting to Consul agent: %s", err))
|
|
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()
|
|
|
|
// Restore the snapshot.
|
|
err = client.Snapshot().Restore(nil, f)
|
|
if err != nil {
|
|
c.UI.Error(fmt.Sprintf("Error restoring snapshot: %s", err))
|
|
return 1
|
|
}
|
|
|
|
c.UI.Info("Restored snapshot")
|
|
return 0
|
|
}
|
|
|
|
func (c *cmd) Synopsis() string {
|
|
return synopsis
|
|
}
|
|
|
|
func (c *cmd) Help() string {
|
|
return c.help
|
|
}
|
|
|
|
const synopsis = "Restores snapshot of Consul server state"
|
|
const help = `
|
|
Usage: consul snapshot restore [options] FILE
|
|
|
|
Restores an atomic, point-in-time snapshot of the state of the Consul servers
|
|
which includes key/value entries, service catalog, prepared queries, sessions,
|
|
and ACLs.
|
|
|
|
Restores involve a potentially dangerous low-level Raft operation that is not
|
|
designed to handle server failures during a restore. This command is primarily
|
|
intended to be used when recovering from a disaster, restoring into a fresh
|
|
cluster of Consul servers.
|
|
|
|
If ACLs are enabled, a management token must be supplied in order to perform
|
|
snapshot operations.
|
|
|
|
To restore a snapshot from the file "backup.snap":
|
|
|
|
$ consul snapshot restore backup.snap
|
|
|
|
For a full list of options and examples, please see the Consul documentation.
|
|
`
|