mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-23 13:30:23 +00:00
166eaf700f
Adds encryption in StorageClass as a parameter. Encryption passphrase is stored in kubernetes secrets per StorageClass. Implements rbd volume encryption relying on dm-crypt and cryptsetup using LUKS extension The change is related to proposal made earlier. This is a first part of the full feature that adds encryption with passphrase stored in secrets. Signed-off-by: Vasyl Purchel vasyl.purchel@workday.com Signed-off-by: Andrea Baglioni andrea.baglioni@workday.com Signed-off-by: Ioannis Papaioannou ioannis.papaioannou@workday.com Signed-off-by: Paul Mc Auley paul.mcauley@workday.com Signed-off-by: Sergio de Carvalho sergio.carvalho@workday.com
68 lines
2.1 KiB
Go
68 lines
2.1 KiB
Go
/*
|
|
Copyright 2019 The Ceph-CSI Authors.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
package util
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"os/exec"
|
|
"strings"
|
|
)
|
|
|
|
// LuksFormat sets up volume as an encrypted LUKS partition
|
|
func LuksFormat(devicePath, passphrase string) (stdout, stderr []byte, err error) {
|
|
return execCryptsetupCommand(&passphrase, "-q", "luksFormat", "--hash", "sha256", devicePath, "-d", "/dev/stdin")
|
|
}
|
|
|
|
// LuksOpen opens LUKS encrypted partition and sets up a mapping
|
|
func LuksOpen(devicePath, mapperFile, passphrase string) (stdout, stderr []byte, err error) {
|
|
return execCryptsetupCommand(&passphrase, "luksOpen", devicePath, mapperFile, "-d", "/dev/stdin")
|
|
}
|
|
|
|
// LuksClose removes existing mapping
|
|
func LuksClose(mapperFile string) (stdout, stderr []byte, err error) {
|
|
return execCryptsetupCommand(nil, "luksClose", mapperFile)
|
|
}
|
|
|
|
// LuksStatus returns encryption status of a provided device
|
|
func LuksStatus(mapperFile string) (stdout, stderr []byte, err error) {
|
|
return execCryptsetupCommand(nil, "status", mapperFile)
|
|
}
|
|
|
|
func execCryptsetupCommand(stdin *string, args ...string) (stdout, stderr []byte, err error) {
|
|
var (
|
|
program = "cryptsetup"
|
|
cmd = exec.Command(program, args...) // nolint: gosec, #nosec
|
|
sanitizedArgs = StripSecretInArgs(args)
|
|
stdoutBuf bytes.Buffer
|
|
stderrBuf bytes.Buffer
|
|
)
|
|
|
|
cmd.Stdout = &stdoutBuf
|
|
cmd.Stderr = &stderrBuf
|
|
if stdin != nil {
|
|
cmd.Stdin = strings.NewReader(*stdin)
|
|
}
|
|
|
|
if err := cmd.Run(); err != nil {
|
|
return stdoutBuf.Bytes(), stderrBuf.Bytes(), fmt.Errorf("an error (%v)"+
|
|
" occurred while running %s args: %v", err, program, sanitizedArgs)
|
|
}
|
|
|
|
return stdoutBuf.Bytes(), nil, nil
|
|
}
|