open-vault/command/write.go

151 lines
3.6 KiB
Go

package command
import (
"fmt"
"io"
"os"
"strings"
"github.com/mitchellh/cli"
"github.com/posener/complete"
)
var _ cli.Command = (*WriteCommand)(nil)
var _ cli.CommandAutocomplete = (*WriteCommand)(nil)
// WriteCommand is a Command that puts data into the Vault.
type WriteCommand struct {
*BaseCommand
flagForce bool
testStdin io.Reader // for tests
}
func (c *WriteCommand) Synopsis() string {
return "Write data, configuration, and secrets"
}
func (c *WriteCommand) Help() string {
helpText := `
Usage: vault write [options] PATH [DATA K=V...]
Writes data to Vault at the given path. The data can be credentials, secrets,
configuration, or arbitrary data. The specific behavior of this command is
determined at the thing mounted at the path.
Data is specified as "key=value" pairs. If the value begins with an "@", then
it is loaded from a file. If the value is "-", Vault will read the value from
stdin.
Persist data in the generic secrets engine:
$ vault write secret/my-secret foo=bar
Create a new encryption key in the transit secrets engine:
$ vault write -f transit/keys/my-key
Upload an AWS IAM policy from a file on disk:
$ vault write aws/roles/ops policy=@policy.json
Configure access to Consul by providing an access token:
$ echo $MY_TOKEN | vault write consul/config/access token=-
For a full list of examples and paths, please see the documentation that
corresponds to the secret engines in use.
` + c.Flags().Help()
return strings.TrimSpace(helpText)
}
func (c *WriteCommand) Flags() *FlagSets {
set := c.flagSet(FlagSetHTTP | FlagSetOutputField | FlagSetOutputFormat)
f := set.NewFlagSet("Command Options")
f.BoolVar(&BoolVar{
Name: "force",
Aliases: []string{"f"},
Target: &c.flagForce,
Default: false,
EnvVar: "",
Completion: complete.PredictNothing,
Usage: "Allow the operation to continue with no key=value pairs. This " +
"allows writing to keys that do not need or expect data.",
})
return set
}
func (c *WriteCommand) AutocompleteArgs() complete.Predictor {
// Return an anything predictor here. Without a way to access help
// information, we don't know what paths we could write to.
return complete.PredictAnything
}
func (c *WriteCommand) AutocompleteFlags() complete.Flags {
return c.Flags().Completions()
}
func (c *WriteCommand) Run(args []string) int {
f := c.Flags()
if err := f.Parse(args); err != nil {
c.UI.Error(err.Error())
return 1
}
args = f.Args()
switch {
case len(args) < 1:
c.UI.Error(fmt.Sprintf("Not enough arguments (expected 1, got %d)", len(args)))
return 1
case len(args) == 1 && !c.flagForce:
c.UI.Error("Must supply data or use -force")
return 1
}
// Pull our fake stdin if needed
stdin := (io.Reader)(os.Stdin)
if c.testStdin != nil {
stdin = c.testStdin
}
path := sanitizePath(args[0])
data, err := parseArgsData(stdin, args[1:])
if err != nil {
c.UI.Error(fmt.Sprintf("Failed to parse K=V data: %s", err))
return 1
}
client, err := c.Client()
if err != nil {
c.UI.Error(err.Error())
return 2
}
secret, err := client.Logical().Write(path, data)
if err != nil {
c.UI.Error(fmt.Sprintf("Error writing data to %s: %s", path, err))
return 2
}
if secret == nil {
// Don't output anything unless using the "table" format
if c.flagFormat == "table" {
c.UI.Info(fmt.Sprintf("Success! Data written to: %s", path))
}
return 0
}
// Handle single field output
if c.flagField != "" {
return PrintRawField(c.UI, secret, c.flagField)
}
return OutputSecret(c.UI, c.flagFormat, secret)
}