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Azure Storage Emulator support (#3285) 

* azureblob - Add support for Azure Storage Emulator to test things locally.

Testing - Verified changes by testing manually.

* docs: update azureblob docs to reflect support of storage emulator
This commit is contained in:
Sandeep 2019-06-26 20:46:22 -07:00 committed by GitHub
parent a1840f6fc7
commit fc44eb4093
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2 changed files with 31 additions and 3 deletions
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28
backend/azureblob/azureblob.go
View File

@ -53,6 +53,11 @@ const (
maxUploadCutoff = 256 * fs.MebiByte
defaultAccessTier = azblob.AccessTierNone
maxTryTimeout = time.Hour * 24 * 365 //max time of an azure web request response window (whether or not data is flowing)
// Default storage account, key and blob endpoint for emulator support,
// though it is a base64 key checked in here, it is publicly available secret.
emulatorAccount = "devstoreaccount1"
emulatorAccountKey = "Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw=="
emulatorBlobEndpoint = "http://127.0.0.1:10000/devstoreaccount1"
)
// Register with Fs
@ -63,13 +68,17 @@ func init() {
NewFs: NewFs,
Options: []fs.Option{{
Name: "account",
Help: "Storage Account Name (leave blank to use connection string or SAS URL)",
Help: "Storage Account Name (leave blank to use connection string or SAS URL or Emulator)",
}, {
Name: "key",
Help: "Storage Account Key (leave blank to use connection string or SAS URL)",
Help: "Storage Account Key (leave blank to use connection string or SAS URL or Emulator)",
}, {
Name: "sas_url",
Help: "SAS URL for container level access only\n(leave blank if using account/key or connection string)",
Help: "SAS URL for container level access only\n(leave blank if using account/key or connection string or Emulator)",
}, {
Name: "use_emulator",
Help: "Uses local storage emulator if provided as 'true' (leave blank if using real azure storage endpoint)",
Default: false,
}, {
Name: "endpoint",
Help: "Endpoint for the service\nLeave blank normally.",
@ -129,6 +138,7 @@ type Options struct {
ChunkSize fs.SizeSuffix `config:"chunk_size"`
ListChunkSize uint `config:"list_chunk"`
AccessTier string `config:"access_tier"`
UseEmulator bool `config:"use_emulator"`
}
// Fs represents a remote azure server
@ -366,6 +376,18 @@ func NewFs(name, root string, m configmap.Mapper) (fs.Fs, error) {
containerURL azblob.ContainerURL
)
switch {
case opt.UseEmulator:
credential, err := azblob.NewSharedKeyCredential(emulatorAccount, emulatorAccountKey)
if err != nil {
return nil, errors.Wrapf(err, "Failed to parse credentials")
}
u, err = url.Parse(emulatorBlobEndpoint)
if err != nil {
return nil, errors.Wrap(err, "failed to make azure storage url from account and endpoint")
}
pipeline := f.newPipeline(credential, azblob.PipelineOptions{Retry: azblob.RetryOptions{TryTimeout: maxTryTimeout}})
serviceURL = azblob.NewServiceURL(*u, pipeline)
containerURL = serviceURL.NewContainerURL(container)
case opt.Account != "" && opt.Key != "":
credential, err := azblob.NewSharedKeyCredential(opt.Account, opt.Key)
if err != nil {

6
docs/content/azureblob.md
View File

@ -279,3 +279,9 @@ tiering blob to "Hot" or "Cool".
MD5 sums are only uploaded with chunked files if the source has an MD5
sum. This will always be the case for a local to azure copy.
### Azure Storage Emulator Support ###
You can test rlcone with storage emulator locally, to do this make sure azure storage emulator
installed locally and set up a new remote with `rclone config` follow instructions described in
introduction, set `use_emulator` config as `true`, you do not need to provide default account name
or key if using emulator.