Adds "storageclass" configuration parameter for S3 driver.

Defaults to STANDARD, also supports REDUCED_REDUNDANCY.

Signed-off-by: Brian Bland <brian.bland@docker.com>
This commit is contained in:
Brian Bland 2016-01-28 15:48:49 -08:00
parent 6417c05a27
commit 8e7910826e
2 changed files with 26 additions and 2 deletions

View file

@ -1,7 +1,7 @@
// Package s3 provides a storagedriver.StorageDriver implementation to
// store blobs in Amazon S3 cloud storage.
//
// This package leverages the AdRoll/goamz client library for interfacing with
// This package leverages the docker/goamz client library for interfacing with
// s3.
//
// Because s3 is a key, value store the Stat call does not support last modification
@ -59,6 +59,7 @@ type DriverParameters struct {
V4Auth bool
ChunkSize int64
RootDirectory string
StorageClass s3.StorageClass
UserAgent string
}
@ -79,6 +80,7 @@ type driver struct {
ChunkSize int64
Encrypt bool
RootDirectory string
StorageClass s3.StorageClass
pool sync.Pool // pool []byte buffers used for WriteStream
zeros []byte // shared, zero-valued buffer used for WriteStream
@ -183,6 +185,21 @@ func FromParameters(parameters map[string]interface{}) (*Driver, error) {
rootDirectory = ""
}
storageClass := s3.StandardStorage
storageClassParam, ok := parameters["storageclass"]
if ok {
storageClassString, ok := storageClassParam.(string)
if !ok {
return nil, fmt.Errorf("The storageclass parameter must be one of %v, %v invalid", []s3.StorageClass{s3.StandardStorage, s3.ReducedRedundancy}, storageClassParam)
}
// All valid storage class parameters are UPPERCASE, so be a bit more flexible here
storageClassCasted := s3.StorageClass(strings.ToUpper(storageClassString))
if storageClassCasted != s3.StandardStorage && storageClassCasted != s3.ReducedRedundancy {
return nil, fmt.Errorf("The storageclass parameter must be one of %v, %v invalid", []s3.StorageClass{s3.StandardStorage, s3.ReducedRedundancy}, storageClassParam)
}
storageClass = storageClassCasted
}
userAgent, ok := parameters["useragent"]
if !ok {
userAgent = ""
@ -198,6 +215,7 @@ func FromParameters(parameters map[string]interface{}) (*Driver, error) {
v4AuthBool,
chunkSize,
fmt.Sprint(rootDirectory),
storageClass,
fmt.Sprint(userAgent),
}
@ -259,6 +277,7 @@ func New(params DriverParameters) (*Driver, error) {
ChunkSize: params.ChunkSize,
Encrypt: params.Encrypt,
RootDirectory: params.RootDirectory,
StorageClass: params.StorageClass,
zeros: make([]byte, params.ChunkSize),
}
@ -826,7 +845,10 @@ func hasCode(err error, code string) bool {
}
func (d *driver) getOptions() s3.Options {
return s3.Options{SSE: d.Encrypt}
return s3.Options{
SSE: d.Encrypt,
StorageClass: d.StorageClass,
}
}
func getPermissions() s3.ACL {

View file

@ -10,6 +10,7 @@ import (
storagedriver "github.com/docker/distribution/registry/storage/driver"
"github.com/docker/distribution/registry/storage/driver/testsuites"
"github.com/docker/goamz/aws"
"github.com/docker/goamz/s3"
"gopkg.in/check.v1"
)
@ -69,6 +70,7 @@ func init() {
v4AuthBool,
minChunkSize,
rootDirectory,
s3.StandardStorage,
"",
}