Files
cloudpods/pkg/compute/models/snapshotpolicycache.go
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2019-09-05 11:09:02 +08:00

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// Copyright 2019 Yunion
//
// 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 models
import (
"context"
"database/sql"
"fmt"
"strings"
"time"
"yunion.io/x/jsonutils"
"yunion.io/x/pkg/errors"
"yunion.io/x/pkg/util/stringutils"
"yunion.io/x/sqlchemy"
api "yunion.io/x/onecloud/pkg/apis/compute"
"yunion.io/x/onecloud/pkg/appsrv"
"yunion.io/x/onecloud/pkg/cloudcommon/db"
"yunion.io/x/onecloud/pkg/cloudcommon/db/lockman"
"yunion.io/x/onecloud/pkg/cloudprovider"
"yunion.io/x/onecloud/pkg/httperrors"
"yunion.io/x/onecloud/pkg/mcclient"
)
type SSnapshotPolicyCacheManager struct {
db.SResourceBaseManager
}
type SSnapshotPolicyCache struct {
db.SResourceBase
SManagedResourceBase
Id string `width:"128" charset:"ascii" primary:"true" list:"user"`
SnapshotpolicyId string `width:"128" charset:"ascii" create:"required"`
CloudregionId string `width:"128" charset:"ascii" create:"required"`
ExternalId string `width:"256" charset:"utf8" index:"true" list:"admin" create:"admin_optional"`
}
var SnapshotPolicyCacheManager *SSnapshotPolicyCacheManager
func init() {
SnapshotPolicyCacheManager = &SSnapshotPolicyCacheManager{
db.NewResourceBaseManager(
SSnapshotPolicyCache{},
"snapshotpolicycache_tbl",
"snapshotpolicycache",
"snapshotpolicycaches",
),
}
SnapshotPolicyCacheManager.SetVirtualObject(SnapshotPolicyCacheManager)
}
func (spc *SSnapshotPolicyCache) BeforeInsert() {
if len(spc.Id) == 0 {
spc.Id = stringutils.UUID4()
}
}
func (spcm *SSnapshotPolicyCacheManager) FilterById(q *sqlchemy.SQuery, idStr string) *sqlchemy.SQuery {
return q.Equals("id", idStr)
}
func (spcm *SSnapshotPolicyCacheManager) GetIStandaloneModelManager() db.IStandaloneModelManager {
return spcm.GetVirtualObject().(db.IStandaloneModelManager)
}
func (spc *SSnapshotPolicyCache) GetIStandaloneModel() db.IStandaloneModel {
return spc.GetVirtualObject().(db.IStandaloneModel)
}
func (spc *SSnapshotPolicyCache) ClearSchedDescCache() error {
return nil
}
func (spcm *SSnapshotPolicyCacheManager) ListItemFilter(ctx context.Context, q *sqlchemy.SQuery, userCred mcclient.TokenCredential,
query jsonutils.JSONObject) (*sqlchemy.SQuery, error) {
q, err := spcm.SResourceBaseManager.ListItemFilter(ctx, q, userCred, query)
if err != nil {
return nil, err
}
if defsecgroup, _ := query.GetString("snapshotpolicy"); len(defsecgroup) > 0 {
secgroup, err := SecurityGroupManager.FetchByIdOrName(userCred, defsecgroup)
if err != nil {
if err == sql.ErrNoRows {
return nil, httperrors.NewResourceNotFoundError2(SecurityGroupManager.Keyword(), defsecgroup)
} else {
return nil, httperrors.NewGeneralError(err)
}
}
q = q.Equals("snapshotpolicy_id", secgroup.GetId())
}
return q, nil
}
func (spc *SSnapshotPolicyCache) GetIRegion() (cloudprovider.ICloudRegion, error) {
provider, err := spc.GetDriver()
if err != nil {
return nil, err
}
if region := CloudregionManager.FetchRegionById(spc.CloudregionId); region != nil {
return provider.GetIRegionById(region.ExternalId)
}
return nil, fmt.Errorf("failed to find iregion for snapshotpolicycache %s: cloudregion %s manager %s", spc.Id,
spc.CloudregionId, spc.ManagerId)
}
func (spc *SSnapshotPolicyCache) GetSnapshotPolicy() (*SSnapshotPolicy, error) {
model, err := SnapshotPolicyManager.FetchById(spc.SnapshotpolicyId)
if err != nil {
return nil, fmt.Errorf("failed to fetchsnapshotpolicy by %s", spc.SnapshotpolicyId)
}
return model.(*SSnapshotPolicy), nil
}
func (spc *SSnapshotPolicyCache) SetExternalId(userCred mcclient.TokenCredential, externalId string) error {
diff, err := db.Update(spc, func() error {
spc.ExternalId = externalId
return nil
})
if err != nil {
return err
}
db.OpsLog.LogEvent(spc, db.ACT_UPDATE, diff, userCred)
return nil
}
func (spc SSnapshotPolicyCache) GetExternalId() string {
return spc.ExternalId
}
// =============================================== detach and delete ===================================================
func (spc *SSnapshotPolicyCache) RealDetele(ctx context.Context, userCred mcclient.TokenCredential) error {
return db.DeleteModel(ctx, userCred, spc)
}
// ================================================= new and regist ====================================================
func (spcm *SSnapshotPolicyCacheManager) NewCache(ctx context.Context, userCred mcclient.TokenCredential,
snapshotPolicyId, regionId, providerId string) (*SSnapshotPolicyCache, error) {
snapshotPolicyCache := SSnapshotPolicyCache{
SnapshotpolicyId: snapshotPolicyId,
CloudregionId: regionId,
}
snapshotPolicyCache.ManagerId = providerId
err := snapshotPolicyCache.CreateCloudSnapshotPolicy()
if err != nil {
return nil, err
}
// should have lock
if err := spcm.TableSpec().Insert(&snapshotPolicyCache); err != nil {
return nil, errors.Wrapf(err, "insert snapshotpolicycache failed")
}
return &snapshotPolicyCache, nil
}
func (spcm *SSnapshotPolicyCacheManager) NewCacheWithExternalId(ctx context.Context, userCred mcclient.TokenCredential,
snapshotPolicyId, externalId, regionId, providerId string) (*SSnapshotPolicyCache, error) {
snapshotPolicyCache := SSnapshotPolicyCache{
SnapshotpolicyId: snapshotPolicyId,
CloudregionId: regionId,
ExternalId: externalId,
}
snapshotPolicyCache.ManagerId = providerId
// should have lock
if err := spcm.TableSpec().Insert(&snapshotPolicyCache); err != nil {
return nil, errors.Wrapf(err, "insert snapshotpolicycache failed")
}
return &snapshotPolicyCache, nil
}
func (spcm *SSnapshotPolicyCacheManager) Register(ctx context.Context, userCred mcclient.TokenCredential, snapshotPolicyId,
regionId string, providerId string) (*SSnapshotPolicyCache, error) {
// Many request about same snapshot policy with same region and provider coming will cause many same cache
// building without lock, so we must Lock.
lockman.LockRawObject(ctx, snapshotPolicyId, regionId+providerId)
defer lockman.ReleaseRawObject(ctx, snapshotPolicyId, regionId+providerId)
snapshotPolicyCache, err := spcm.FetchSnapshotPolicyCache(snapshotPolicyId, regionId, providerId)
// error
if err != nil {
return nil, err
}
// no cache
if snapshotPolicyCache != nil {
return snapshotPolicyCache, nil
}
return spcm.NewCache(ctx, userCred, snapshotPolicyId, regionId, providerId)
}
func (spcm *SSnapshotPolicyCacheManager) RegisterWithExternalID(ctx context.Context, userCred mcclient.TokenCredential,
snapshotPolicyId, externalId, regionId, providerId string) (*SSnapshotPolicyCache, error) {
snapshotPolicyCache, err := spcm.FetchSnapshotPolicyCache(snapshotPolicyId, regionId, providerId)
// error
if err != nil {
return nil, err
}
// no cache
if snapshotPolicyCache != nil {
return snapshotPolicyCache, nil
}
return spcm.NewCacheWithExternalId(ctx, userCred, snapshotPolicyId, externalId, regionId, providerId)
}
// ==================================================== fetch =========================================================
func (spcm *SSnapshotPolicyCacheManager) FetchSnapshotpolicyCaheById(cacheId string) (*SSnapshotPolicyCache, error) {
q := spcm.FilterById(spcm.Query(), cacheId)
return spcm.fetchByQuery(q)
}
func (spcm *SSnapshotPolicyCacheManager) FetchSnapshotPolicyCache(snapshotPolicyId, regionId, providerId string) (*SSnapshotPolicyCache, error) {
q := spcm.Query()
q.Filter(sqlchemy.AND(sqlchemy.Equals(q.Field("snapshotpolicy_id"), snapshotPolicyId),
sqlchemy.Equals(q.Field("cloudregion_id"), regionId),
sqlchemy.Equals(q.Field("manager_id"), providerId)))
return spcm.fetchByQuery(q)
}
func (spcm *SSnapshotPolicyCacheManager) FetchSnapshotPolicyCacheByExtId(externalId, regionId,
providerId string) (*SSnapshotPolicyCache, error) {
q := spcm.Query()
q.Filter(sqlchemy.AND(sqlchemy.Equals(q.Field("external_id"), externalId),
sqlchemy.Equals(q.Field("cloudregion_id"), regionId),
sqlchemy.Equals(q.Field("manager_id"), providerId)))
return spcm.fetchByQuery(q)
}
func (spcm *SSnapshotPolicyCacheManager) FetchAllByExtIds(externalIds []string, regionId,
providerId string) ([]SSnapshotPolicyCache, error) {
q := spcm.Query().In("external_id", externalIds).Equals("cloudregion_id", regionId).Equals("manager_id", providerId)
return spcm.fetchAllByQuery(q)
}
func (spcm *SSnapshotPolicyCacheManager) FetchAllBySnpId(snapshotPolicyId string) ([]SSnapshotPolicyCache, error) {
q := spcm.Query().Equals("snapshotpolicy_id", snapshotPolicyId)
return spcm.fetchAllByQuery(q)
}
func (spcm *SSnapshotPolicyCacheManager) FetchAllByRegionProvider(cloudregionId,
managerId string) ([]SSnapshotPolicyCache, error) {
q := spcm.Query().Equals("cloudregion_id", cloudregionId).Equals("manager_id", managerId)
return spcm.fetchAllByQuery(q)
}
func (spcm *SSnapshotPolicyCacheManager) fetchAllByQuery(q *sqlchemy.SQuery) ([]SSnapshotPolicyCache, error) {
caches := make([]SSnapshotPolicyCache, 0, 1)
if err := db.FetchModelObjects(spcm, q, &caches); err != nil {
return nil, err
}
return caches, nil
}
func (spcm *SSnapshotPolicyCacheManager) fetchByQuery(q *sqlchemy.SQuery) (*SSnapshotPolicyCache, error) {
count, err := q.CountWithError()
if err != nil {
return nil, err
}
if count == 0 {
return nil, nil
}
snapshotPolicyCache := SSnapshotPolicyCache{}
// if exist, only one
q.First(&snapshotPolicyCache)
snapshotPolicyCache.SetModelManager(spcm, &snapshotPolicyCache)
return &snapshotPolicyCache, nil
}
// ============================================== cloud operation ======================================================
// This function should call in the task.
type sOperaResult struct {
err error
snapshotPolicyId string
}
func (spcm *SSnapshotPolicyCacheManager) UpdateCloudSnapshotPolicy(snapshotPolicyId string,
input *cloudprovider.SnapshotPolicyInput) error {
//todo maybe
return fmt.Errorf("Not implement")
}
func (spcm *SSnapshotPolicyCacheManager) DeleteCloudSnapshotPolices(ctx context.Context,
userCred mcclient.TokenCredential, snapshotPolicyId string) error {
spCaches, err := spcm.FetchAllBySnpId(snapshotPolicyId)
if err != nil {
return errors.Wrapf(err, "fetch all snapshotPolicyCaches ofsnapshotpolicy %s failed", snapshotPolicyId)
}
if len(spCaches) == 0 {
return nil
}
wm := appsrv.NewWorkerManager("delete-cloud-snapshotpolices", len(spCaches), 1, false)
retChan := make(chan sOperaResult)
for i := range spCaches {
spc := spCaches[i]
wm.Run(func() {
err := spc.DeleteCloudSnapshotPolicy()
if err != nil {
retChan <- sOperaResult{err, spc.GetId()}
return
}
err = spc.RealDetele(ctx, userCred)
if err != nil {
retChan <- sOperaResult{errors.Wrap(err, "delete cache in database failed"), spc.GetId()}
return
}
retChan <- sOperaResult{nil, spc.GetId()}
}, nil, func(e error) {
retChan <- sOperaResult{e, spc.GetId()}
})
}
failedRecord := make([]string, 0)
for i := 0; i < len(spCaches); i++ {
ret := <-retChan
if ret.err != nil {
failedRecord = append(failedRecord, fmt.Sprintf("%s failed because that %s", ret.snapshotPolicyId,
ret.err.Error()))
}
}
if len(failedRecord) != 0 {
return fmt.Errorf("delete: " + strings.Join(failedRecord, "; "))
}
return nil
}
func (spc *SSnapshotPolicyCache) CreateCloudSnapshotPolicy() error {
// create correspondingsnapshotpolicy in cloud
iregion, err := spc.GetIRegion()
if err != nil {
return err
}
snapshotPolicy, err := spc.GetSnapshotPolicy()
if err != nil {
return err
}
externalId, err := iregion.CreateSnapshotPolicy(snapshotPolicy.GenerateCreateSpParams())
if err != nil {
return errors.Wrap(err, "createsnapshotpolicy failed")
}
spc.ExternalId = externalId
iPolicy, err := iregion.GetISnapshotPolicyById(externalId)
if err != nil {
return err
}
err = cloudprovider.WaitStatus(iPolicy, api.SNAPSHOT_POLICY_READY, 10*time.Second, 300*time.Second)
if err != nil {
return err
}
return nil
}
func (spc *SSnapshotPolicyCache) DeleteCloudSnapshotPolicy() error {
if len(spc.ExternalId) > 0 {
iregion, err := spc.GetIRegion()
if err != nil {
return err
}
cloudSp, err := iregion.GetISnapshotPolicyById(spc.ExternalId)
if err == cloudprovider.ErrNotFound {
return nil
}
if err != nil {
return errors.Wrap(err, "fetch snapshotpolicy from cloud before deleting failed")
}
if cloudSp == nil {
return nil
}
return iregion.DeleteSnapshotPolicy(spc.ExternalId)
}
return nil
}
func (spc *SSnapshotPolicyCache) UpdateCloudSnapshotPolicy(input *cloudprovider.SnapshotPolicyInput) error {
iregion, err := spc.GetIRegion()
if err != nil {
return err
}
err = iregion.UpdateSnapshotPolicy(input, spc.ExternalId)
if err != nil {
return errors.Wrap(err, "createsnapshotpolicy failed")
}
return nil
}