93 lines
3.7 KiB
Go
93 lines
3.7 KiB
Go
/*
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Copyright 2017 the Heptio Ark contributors.
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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 (
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"io"
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"time"
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"k8s.io/apimachinery/pkg/runtime"
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)
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// ObjectStore exposes basic object-storage operations required
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// by Ark.
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type ObjectStore interface {
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// Init prepares the ObjectStore for usage using the provided map of
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// configuration key-value pairs. It returns an error if the ObjectStore
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// cannot be initialized from the provided config.
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Init(config map[string]string) error
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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.Reader) 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. For example, if the bucket contains
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// the keys "foo-1/bar", "foo-1/baz", and "foo-2/baz", and the delimiter
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// is "/", this will return the slice {"foo-1", "foo-2"}.
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ListCommonPrefixes(bucket string, delimiter string) ([]string, error)
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// ListObjects gets a list of all keys in the specified bucket
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// that have the given prefix.
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ListObjects(bucket, prefix string) ([]string, error)
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// DeleteObject removes the 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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// CreateSignedURL creates a pre-signed URL for the given bucket and key that expires after ttl.
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CreateSignedURL(bucket, key string, ttl time.Duration) (string, error)
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}
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// BlockStore exposes basic block-storage operations required
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// by Ark.
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type BlockStore interface {
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// Init prepares the BlockStore for usage using the provided map of
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// configuration key-value pairs. It returns an error if the BlockStore
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// cannot be initialized from the provided config.
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Init(config map[string]string) error
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// CreateVolumeFromSnapshot creates a new block volume in the specified
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// availability zone, 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, volumeAZ string, iops *int64) (volumeID string, err error)
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// GetVolumeID returns the cloud provider specific identifier for the PersistentVolume.
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GetVolumeID(pv runtime.Unstructured) (string, error)
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// SetVolumeID sets the cloud provider specific identifier for the PersistentVolume.
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SetVolumeID(pv runtime.Unstructured, volumeID string) (runtime.Unstructured, error)
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// GetVolumeInfo returns the type and IOPS (if using provisioned IOPS) for
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// the specified block volume in the given availability zone.
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GetVolumeInfo(volumeID, volumeAZ 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, volumeAZ string) (ready bool, err 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, volumeAZ 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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