[WIP] add Manager for RBD volumes and snapshots

internal/rbd/manager.go

@@ -0,0 +1,42 @@
+package rbd
+
+import (
+	"context"
+
+	types "github.com/ceph/ceph-csi/internal/rbd_types"
+	"github.com/ceph/ceph-csi/internal/util"
+)
+
+var _ types.Manager = &rbdManager{}
+
+type rbdManager struct{}
+
+func (mgr *rbdManager) GetVolumeByID(ctx context.Context, id string, secrets map[string]string) (types.Volume, error) {
+	creds, err := util.NewUserCredentials(secrets)
+	if err != nil {
+		return nil, err
+	}
+	defer creds.DeleteCredentials()
+
+	volume, err := GenVolFromVolID(ctx, id, creds, secrets)
+	if err != nil {
+		return nil, err
+	}
+
+	return volume, nil
+}
+
+func (mgr *rbdManager) GetSnapshotByID(ctx context.Context, id string, secrets map[string]string) (types.Snapshot, error) {
+	creds, err := util.NewUserCredentials(secrets)
+	if err != nil {
+		return nil, err
+	}
+	defer creds.DeleteCredentials()
+
+	snap, err := genSnapFromSnapID(ctx, id, creds, secrets)
+	if err != nil {
+		return nil, err
+	}
+
+	return snap, nil
+}

internal/rbd_types/manager.go

@@ -0,0 +1,28 @@
+/*
+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.
+*/
+
+//nolint:golint // this package should be renamed to rbd/types
+package rbd_types
+
+import (
+	"context"
+)
+
+// Manager provides a way for other packages to get Volumes and Snapshots.
+type Manager interface {
+	GetVolumeByID(ctx context.Context, id string, secrets map[string]string) (Volume, error)
+	GetSnapshotByID(ctx context.Context, id string, secrets map[string]string) (Snapshot, error)
+}