73 lines
2.8 KiB
Go
73 lines
2.8 KiB
Go
/*
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Copyright 2017 Heptio Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cloudprovider
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import "io"
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// ObjectStorageAdapter exposes basic object-storage operations required
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// by Ark.
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type ObjectStorageAdapter interface {
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// PutObject creates a new object using the data in body within the specified
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// object storage bucket with the given key.
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PutObject(bucket string, key string, body io.ReadSeeker) error
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// GetObject retrieves the object with the given key from the specified
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// bucket in object storage.
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GetObject(bucket string, key string) (io.ReadCloser, error)
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// ListCommonPrefixes gets a list of all object key prefixes that come
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// before the provided delimiter (this is often used to simulate a directory
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// hierarchy in object storage).
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ListCommonPrefixes(bucket string, delimiter string) ([]string, error)
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// DeleteObject removes object with the specified key from the given
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// bucket.
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DeleteObject(bucket string, key string) error
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}
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// BlockStorageAdapter exposes basic block-storage operations required
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// by Ark.
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type BlockStorageAdapter interface {
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// CreateVolumeFromSnapshot creates a new block volume, initialized from the provided snapshot,
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// and with the specified type and IOPS (if using provisioned IOPS).
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CreateVolumeFromSnapshot(snapshotID, volumeType string, iops *int64) (volumeID string, err error)
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// GetVolumeInfo returns the type and IOPS (if using provisioned IOPS) for a specified block
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// volume.
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GetVolumeInfo(volumeID string) (string, *int64, error)
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// IsVolumeReady returns whether the specified volume is ready to be used.
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IsVolumeReady(volumeID string) (ready bool, err error)
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// ListSnapshots returns a list of all snapshots matching the specified set of tag key/values.
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ListSnapshots(tagFilters map[string]string) ([]string, error)
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// CreateSnapshot creates a snapshot of the specified block volume, and applies the provided
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// set of tags to the snapshot.
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CreateSnapshot(volumeID string, tags map[string]string) (snapshotID string, err error)
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// DeleteSnapshot deletes the specified volume snapshot.
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DeleteSnapshot(snapshotID string) error
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}
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// StorageAdapter exposes object- and block-storage interfaces and associated methods
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// for a given storage provider.
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type StorageAdapter interface {
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ObjectStorage() ObjectStorageAdapter
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BlockStorage() BlockStorageAdapter
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}
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