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[WIP] refactor common attributes and journalling in struct groupObject
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,167 @@ | ||
| /* | ||
| Copyright 2024 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 rbd_group | ||
|
|
||
| import ( | ||
| "context" | ||
| "errors" | ||
|
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| "github.com/ceph/go-ceph/rados" | ||
|
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| "github.com/ceph/ceph-csi/internal/journal" | ||
| "github.com/ceph/ceph-csi/internal/util" | ||
| ) | ||
|
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| type groupObject struct { | ||
| clusterID string | ||
|
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| credentials *util.Credentials | ||
| secrets map[string]string | ||
| monitors string | ||
| pool string | ||
|
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| // temporary connection attributes | ||
| conn *util.ClusterConnection | ||
| ioctx *rados.IOContext | ||
|
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| // journalling related attributes | ||
| journal journal.VolumeGroupJournal | ||
| journalPool string | ||
|
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| // id is a unique value for this volume group in the Ceph cluster, it | ||
| // is used to find the group in the journal. | ||
| id string | ||
|
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| // name is used in RBD API calls as the name of this object | ||
| name string | ||
| } | ||
|
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| func (obj *groupObject) Destroy(ctx context.Context) { | ||
| if obj.journal != nil { | ||
| obj.journal.Destroy() | ||
| obj.journal = nil | ||
| } | ||
|
|
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| if obj.credentials != nil { | ||
| obj.credentials.DeleteCredentials() | ||
| obj.credentials = nil | ||
| } | ||
| } | ||
|
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| func (obj *groupObject) resolveByID(ctx context.Context, id string, secrets map[string]string) error { | ||
| csiID := util.CSIIdentifier{} | ||
|
|
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| err := csiID.DecomposeCSIID(id) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| mons, _, err := util.GetMonsAndClusterID(ctx, csiID.ClusterID, false) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| namespace, err := util.GetRadosNamespace(util.CsiConfigFile, csiID.ClusterID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| obj.clusterID = csiID.ClusterID | ||
| obj.monitors = mons | ||
| obj.secrets = secrets | ||
| obj.id = id | ||
|
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| obj.credentials, err = util.NewUserCredentials(secrets) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| defer func() { | ||
| if err != nil { | ||
| obj.Destroy(ctx) | ||
| } | ||
| }() | ||
|
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| pool, err := util.GetPoolName(mons, obj.credentials, csiID.LocationID) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| err = obj.SetJournalNamespace(ctx, pool, namespace) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| // SetMonitors connects to the Ceph cluster. | ||
| func (obj *groupObject) SetMonitors(ctx context.Context, monitors string) error { | ||
| conn := &util.ClusterConnection{} | ||
| err := conn.Connect(monitors, obj.credentials) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| obj.conn = conn | ||
| obj.monitors = monitors | ||
|
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| return nil | ||
| } | ||
|
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| // SetPool uses the connection to the Ceph cluster to create an IOContext to | ||
| // the pool. | ||
| func (obj *groupObject) SetPool(ctx context.Context, pool string) error { | ||
| if obj.conn == nil { | ||
| return ErrRBDGroupNotConnected | ||
| } | ||
|
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| ioctx, err := obj.conn.GetIoctx(pool) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| obj.pool = pool | ||
| obj.ioctx = ioctx | ||
|
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| return nil | ||
| } | ||
|
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| func (obj *groupObject) SetJournalNamespace(ctx context.Context, pool, namespace string) error { | ||
| if obj.conn == nil { | ||
| return ErrRBDGroupNotConnected | ||
| } | ||
|
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| vgj := journal.NewCSIVolumeGroupJournal(groupSuffix) | ||
| vgj.SetNamespace(namespace) | ||
| err := vgj.Connect(obj.monitors, namespace, obj.credentials) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
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| obj.journal = vgj | ||
| obj.journalPool = pool | ||
|
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| return nil | ||
| } | ||
|
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| func (obj *groupObject) GetID(ctx context.Context) (string, error) { | ||
| if obj.id == "" { | ||
| return "", errors.New("BUG: ID is no set") | ||
| } | ||
|
|
||
| return obj.id, nil | ||
| } |
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