func init() {
accessKey := os.Getenv("AWS_ACCESS_KEY")
secretKey := os.Getenv("AWS_SECRET_KEY")
bucket := os.Getenv("S3_BUCKET")
encrypt := os.Getenv("S3_ENCRYPT")
secure := os.Getenv("S3_SECURE")
v4auth := os.Getenv("S3_USE_V4_AUTH")
region := os.Getenv("AWS_REGION")
endpoint := os.Getenv("BUCKET_ENDPOINT")
root, err := ioutil.TempDir("", "driver-")
if err != nil {
panic(err)
}
defer os.Remove(root)
s3DriverConstructor = func(rootDirectory string) (*Driver, error) {
encryptBool := false
if encrypt != "" {
encryptBool, err = strconv.ParseBool(encrypt)
if err != nil {
return nil, err
}
}
secureBool := true
if secure != "" {
secureBool, err = strconv.ParseBool(secure)
if err != nil {
return nil, err
}
}
v4AuthBool := false
if v4auth != "" {
v4AuthBool, err = strconv.ParseBool(v4auth)
if err != nil {
return nil, err
}
}
endpointStr := ""
if endpoint != "" {
endpointStr = endpoint
}
parameters := DriverParameters{
accessKey,
secretKey,
bucket,
aws.GetRegion(region),
encryptBool,
secureBool,
v4AuthBool,
minChunkSize,
rootDirectory,
endpointStr,
}
return New(parameters)
}
// Skip S3 storage driver tests if environment variable parameters are not provided
skipS3 = func() string {
if accessKey == "" || secretKey == "" || region == "" || bucket == "" || encrypt == "" {
return "Must set AWS_ACCESS_KEY, AWS_SECRET_KEY, AWS_REGION, S3_BUCKET, and S3_ENCRYPT to run S3 tests"
}
return ""
}
testsuites.RegisterSuite(func() (storagedriver.StorageDriver, error) {
return s3DriverConstructor(root)
}, skipS3)
}
// FromParameters constructs a new Driver with a given parameters map
// Required parameters:
// - accesskey
// - secretkey
// - region
// - bucket
// - encrypt
func FromParameters(parameters map[string]interface{}) (*Driver, error) {
// Providing no values for these is valid in case the user is authenticating
// with an IAM on an ec2 instance (in which case the instance credentials will
// be summoned when GetAuth is called)
accessKey, ok := parameters["accesskey"]
if !ok {
accessKey = os.Getenv("AWS_ACCESS_KEY")
}
secretKey, ok := parameters["secretkey"]
if !ok {
secretKey = os.Getenv("AWS_SECRET_KEY")
}
regionName, ok := parameters["region"]
if !ok || fmt.Sprint(regionName) == "" {
//return nil, fmt.Errorf("No region parameter provided")
regionName = os.Getenv("AWS_REGION")
}
region := aws.GetRegion(fmt.Sprint(regionName))
if region.Name == "" {
return nil, fmt.Errorf("Invalid region provided: %v", region)
}
bucket, ok := parameters["bucket"]
if !ok || fmt.Sprint(bucket) == "" {
bucket = os.Getenv("AWS_BUCKET")
}
encryptBool := false
encrypt, ok := parameters["encrypt"]
if ok {
encryptBool, ok = encrypt.(bool)
if !ok {
return nil, fmt.Errorf("The encrypt parameter should be a boolean")
}
}
secureBool := false
secure, ok := parameters["secure"]
if ok {
secureBool, ok = secure.(bool)
if !ok {
return nil, fmt.Errorf("The secure parameter should be a boolean")
}
}
v4AuthBool := false
v4Auth, ok := parameters["v4auth"]
if ok {
v4AuthBool, ok = v4Auth.(bool)
if !ok {
return nil, fmt.Errorf("The v4auth parameter should be a boolean")
}
}
customURlstr := ""
if region.Name == "Custom" {
customURL, ok := parameters["customEndpoint"]
if ok {
customURlstr, ok = customURL.(string)
if customURlstr == "" {
customURlstr = os.Getenv("BUCKET_ENDPOINT")
}
region.EC2Endpoint = customURlstr
region.S3Endpoint = customURlstr
}
}
chunkSize := int64(defaultChunkSize)
chunkSizeParam, ok := parameters["chunksize"]
if ok {
switch v := chunkSizeParam.(type) {
case string:
vv, err := strconv.ParseInt(v, 0, 64)
if err != nil {
return nil, fmt.Errorf("chunksize parameter must be an integer, %v invalid", chunkSizeParam)
}
chunkSize = vv
case int64:
chunkSize = v
case int, uint, int32, uint32, uint64:
chunkSize = reflect.ValueOf(v).Convert(reflect.TypeOf(chunkSize)).Int()
default:
return nil, fmt.Errorf("invalid valud for chunksize: %#v", chunkSizeParam)
}
if chunkSize < minChunkSize {
return nil, fmt.Errorf("The chunksize %#v parameter should be a number that is larger than or equal to %d", chunkSize, minChunkSize)
}
}
rootDirectory, ok := parameters["rootdirectory"]
if !ok {
rootDirectory = ""
}
params := DriverParameters{
fmt.Sprint(accessKey),
fmt.Sprint(secretKey),
fmt.Sprint(bucket),
region,
encryptBool,
secureBool,
v4AuthBool,
chunkSize,
fmt.Sprint(rootDirectory),
customURlstr,
}
fmt.Printf("Creating new S3 Driver\n")
return New(params)
}