122 lines
4.1 KiB
Go
122 lines
4.1 KiB
Go
/*
|
|
Copyright 2016 The Rook Authors. All rights reserved.
|
|
|
|
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 client
|
|
|
|
import (
|
|
"encoding/json"
|
|
"fmt"
|
|
"log"
|
|
"strings"
|
|
)
|
|
|
|
type CephStoragePoolSummary struct {
|
|
Name string `json:"poolname"`
|
|
Number int `json:"poolnum"`
|
|
}
|
|
|
|
type CephStoragePoolDetails struct {
|
|
Name string `json:"pool"`
|
|
Number int `json:"pool_id"`
|
|
Size uint `json:"size"`
|
|
ErasureCodeProfile string `json:"erasure_code_profile"`
|
|
}
|
|
|
|
func ListPoolSummaries(conn Connection) ([]CephStoragePoolSummary, error) {
|
|
cmd := map[string]interface{}{"prefix": "osd lspools"}
|
|
buf, err := ExecuteMonCommand(conn, cmd, "list pools")
|
|
if err != nil {
|
|
return nil, fmt.Errorf("failed to list pools: %+v", err)
|
|
}
|
|
|
|
var pools []CephStoragePoolSummary
|
|
err = json.Unmarshal(buf, &pools)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("unmarshal failed: %+v. raw buffer response: %s", err, string(buf))
|
|
}
|
|
|
|
return pools, nil
|
|
}
|
|
|
|
func GetPoolDetails(conn Connection, name string) (CephStoragePoolDetails, error) {
|
|
cmd := map[string]interface{}{"prefix": "osd pool get", "pool": name, "var": "all"}
|
|
buf, err := ExecuteMonCommand(conn, cmd, "get pool")
|
|
if err != nil {
|
|
return CephStoragePoolDetails{}, fmt.Errorf("failed to get pool %s details: %+v", name, err)
|
|
}
|
|
|
|
// The response for osd pool get when passing var=all is actually malformed JSON similar to:
|
|
// {"pool":"rbd","size":1}{"pool":"rbd","min_size":2}...
|
|
// Note the multiple top level entities, one for each property returned. To workaround this,
|
|
// we split the JSON response string into its top level entities, then iterate through them, cleaning
|
|
// up the JSON. A single pool details object is repeatedly used to unmarshal each JSON snippet into.
|
|
// Since previously set fields remain intact if they are not overwritten, the result is the JSON
|
|
// unmarshalling of all properties in the response.
|
|
var poolDetails CephStoragePoolDetails
|
|
poolDetailsUnits := strings.Split(string(buf), "}{")
|
|
for i := range poolDetailsUnits {
|
|
pdu := poolDetailsUnits[i]
|
|
if !strings.HasPrefix(pdu, "{") {
|
|
pdu = "{" + pdu
|
|
}
|
|
if !strings.HasSuffix(pdu, "}") {
|
|
pdu += "}"
|
|
}
|
|
err := json.Unmarshal([]byte(pdu), &poolDetails)
|
|
if err != nil {
|
|
return CephStoragePoolDetails{}, fmt.Errorf("unmarshal failed: %+v. raw buffer response: %s", err, string(buf))
|
|
}
|
|
}
|
|
|
|
return poolDetails, nil
|
|
}
|
|
|
|
func CreatePool(conn Connection, newPool CephStoragePoolDetails) (string, error) {
|
|
cmd := map[string]interface{}{"prefix": "osd pool create", "pool": newPool.Name}
|
|
|
|
if newPool.ErasureCodeProfile != "" {
|
|
cmd["pool_type"] = "erasure"
|
|
cmd["erasure_code_profile"] = newPool.ErasureCodeProfile
|
|
} else {
|
|
cmd["pool_type"] = "replicated"
|
|
}
|
|
|
|
buf, info, err := ExecuteMonCommandWithInfo(conn, cmd, "create pool")
|
|
if err != nil {
|
|
return "", fmt.Errorf("mon_command %s failed, buf: %s, info: %s: %+v", cmd, string(buf), info, err)
|
|
}
|
|
|
|
if newPool.ErasureCodeProfile == "" && newPool.Size > 0 {
|
|
// the pool is type replicated, set the size for the pool now that it's been created
|
|
if err = SetPoolProperty(conn, newPool.Name, "size", newPool.Size); err != nil {
|
|
return "", err
|
|
}
|
|
}
|
|
|
|
log.Printf("creating pool %s succeeded, info: %s, buf: %s", newPool.Name, info, string(buf))
|
|
|
|
return info, nil
|
|
}
|
|
|
|
func SetPoolProperty(conn Connection, name, propName string, propVal interface{}) error {
|
|
cmd := map[string]interface{}{"prefix": "osd pool set", "pool": name, "var": propName, "val": propVal}
|
|
buf, info, err := ExecuteMonCommandWithInfo(conn, cmd, "set pool")
|
|
if err != nil {
|
|
return fmt.Errorf("mon_command %s failed, buf: %s, info: %s: %+v", cmd, string(buf), info, err)
|
|
}
|
|
|
|
return nil
|
|
}
|