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Allow authentication using connection string when targeting Azure Blob Storage (#383)

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* Allow authentication using connection string when targeting Azure Blob Storage

* Bail on ambiguous configuration
This commit is contained in:
Frederik Ring
2024-03-08 20:23:30 +01:00
committed by GitHub
parent e8562b1785
commit baf34ec1f7
4 changed files with 22 additions and 3 deletions
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14
internal/storage/azure/azure.go
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@@ -33,12 +33,17 @@ type Config struct {
AccountName string
ContainerName string
PrimaryAccountKey string
ConnectionString string
Endpoint string
RemotePath string
}
// NewStorageBackend creates and initializes a new Azure Blob Storage backend.
func NewStorageBackend(opts Config, logFunc storage.Log) (storage.Backend, error) {
if opts.PrimaryAccountKey != "" && opts.ConnectionString != "" {
return nil, errwrap.Wrap(nil, "using primary account key and connection string are mutually exclusive")
}
endpointTemplate, err := template.New("endpoint").Parse(opts.Endpoint)
if err != nil {
return nil, errwrap.Wrap(err, "error parsing endpoint template")
@@ -58,7 +63,12 @@ func NewStorageBackend(opts Config, logFunc storage.Log) (storage.Backend, error
client, err = azblob.NewClientWithSharedKeyCredential(normalizedEndpoint, cred, nil)
if err != nil {
return nil, errwrap.Wrap(err, "error creating Azure client")
return nil, errwrap.Wrap(err, "error creating azure client from primary account key")
}
} else if opts.ConnectionString != "" {
client, err = azblob.NewClientFromConnectionString(opts.ConnectionString, nil)
if err != nil {
return nil, errwrap.Wrap(err, "error creating azure client from connection string")
}
} else {
cred, err := azidentity.NewManagedIdentityCredential(nil)
@@ -67,7 +77,7 @@ func NewStorageBackend(opts Config, logFunc storage.Log) (storage.Backend, error
}
client, err = azblob.NewClient(normalizedEndpoint, cred, nil)
if err != nil {
return nil, errwrap.Wrap(err, "error creating Azure client")
return nil, errwrap.Wrap(err, "error creating azure client from managed identity")
}
}