mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-13 01:40:23 +00:00
123 lines
3.3 KiB
Go
123 lines
3.3 KiB
Go
/*
|
|
Copyright 2018 The Kubernetes 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 cephfs
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/json"
|
|
"fmt"
|
|
"os"
|
|
)
|
|
|
|
const (
|
|
cephUserPrefix = "user-"
|
|
cephEntityClientPrefix = "client."
|
|
)
|
|
|
|
type cephEntityCaps struct {
|
|
Mds string `json:"mds"`
|
|
Mon string `json:"mon"`
|
|
Osd string `json:"osd"`
|
|
}
|
|
|
|
type cephEntity struct {
|
|
Entity string `json:"entity"`
|
|
Key string `json:"key"`
|
|
Caps cephEntityCaps `json:"caps"`
|
|
}
|
|
|
|
func (ent *cephEntity) toCredentials() *credentials {
|
|
return &credentials{
|
|
id: ent.Entity[len(cephEntityClientPrefix):],
|
|
key: ent.Key,
|
|
}
|
|
}
|
|
|
|
func getCephUserName(volId volumeID) string {
|
|
return cephUserPrefix + string(volId)
|
|
}
|
|
|
|
func getCephUser(adminCr *credentials, volId volumeID) (*cephEntity, error) {
|
|
entityName := cephEntityClientPrefix + getCephUserName(volId)
|
|
|
|
var ents []cephEntity
|
|
args := [...]string{
|
|
"auth", "-f", "json", "-c", getCephConfPath(volId), "-n", cephEntityClientPrefix + adminCr.id,
|
|
"get", entityName,
|
|
}
|
|
|
|
out, err := execCommand("ceph", args[:]...)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("cephfs: ceph failed with following error: %s\ncephfs: ceph output: %s", err, out)
|
|
}
|
|
|
|
// Workaround for output from `ceph auth get`
|
|
// Contains non-json data: "exported keyring for ENTITY\n\n"
|
|
offset := bytes.Index(out, []byte("[{"))
|
|
|
|
if json.NewDecoder(bytes.NewReader(out[offset:])).Decode(&ents); err != nil {
|
|
return nil, fmt.Errorf("failed to decode json: %v", err)
|
|
}
|
|
|
|
if len(ents) != 1 {
|
|
return nil, fmt.Errorf("got unexpected number of entities for %s: expected 1, got %d", entityName, len(ents))
|
|
}
|
|
|
|
return &ents[0], nil
|
|
}
|
|
|
|
func createCephUser(volOptions *volumeOptions, adminCr *credentials, volId volumeID) (*cephEntity, error) {
|
|
caps := cephEntityCaps{
|
|
Mds: fmt.Sprintf("allow rw path=%s", getVolumeRootPathCeph(volId)),
|
|
Mon: "allow r",
|
|
Osd: fmt.Sprintf("allow rw pool=%s namespace=%s", volOptions.Pool, getVolumeNamespace(volId)),
|
|
}
|
|
|
|
var ents []cephEntity
|
|
args := [...]string{
|
|
"auth", "-f", "json", "-c", getCephConfPath(volId), "-n", cephEntityClientPrefix + adminCr.id,
|
|
"get-or-create", cephEntityClientPrefix + getCephUserName(volId),
|
|
"mds", caps.Mds,
|
|
"mon", caps.Mon,
|
|
"osd", caps.Osd,
|
|
}
|
|
|
|
if err := execCommandJson(&ents, "ceph", args[:]...); err != nil {
|
|
return nil, fmt.Errorf("error creating ceph user: %v", err)
|
|
}
|
|
|
|
return &ents[0], nil
|
|
}
|
|
|
|
func deleteCephUser(adminCr *credentials, volId volumeID) error {
|
|
userId := getCephUserName(volId)
|
|
|
|
args := [...]string{
|
|
"-c", getCephConfPath(volId), "-n", cephEntityClientPrefix + adminCr.id,
|
|
"auth", "rm", cephEntityClientPrefix + userId,
|
|
}
|
|
|
|
if err := execCommandAndValidate("ceph", args[:]...); err != nil {
|
|
return err
|
|
}
|
|
|
|
os.Remove(getCephKeyringPath(volId, userId))
|
|
os.Remove(getCephSecretPath(volId, userId))
|
|
|
|
return nil
|
|
}
|