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Merge pull request #1345 from harshavardhana/creds

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Refactor credentials management to support multiple mechanisms.
This commit is contained in:
Alexander Neumann 2017-10-11 21:01:19 +02:00
commit 0addd90e14
1 changed files with 25 additions and 18 deletions
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43
internal/backend/s3/s3.go
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@ -40,24 +40,31 @@ func open(cfg Config, rt http.RoundTripper) (*Backend, error) {
minio.MaxRetry = int(cfg.MaxRetries)
}
var client *minio.Client
var err error
if cfg.KeyID == "" || cfg.Secret == "" {
debug.Log("key/secret not found, trying to get them from IAM")
creds := credentials.NewIAM("")
client, err = minio.NewWithCredentials(cfg.Endpoint, creds, !cfg.UseHTTP, "")
if err != nil {
return nil, errors.Wrap(err, "minio.NewWithCredentials")
}
} else {
debug.Log("key/secret found")
client, err = minio.New(cfg.Endpoint, cfg.KeyID, cfg.Secret, !cfg.UseHTTP)
if err != nil {
return nil, errors.Wrap(err, "minio.New")
}
// Chains all credential types, starting with
// Static credentials provided by user.
// IAM profile based credentials. (performs an HTTP
// call to a pre-defined endpoint, only valid inside
// configured ec2 instances)
// AWS env variables such as AWS_ACCESS_KEY_ID
// Minio env variables such as MINIO_ACCESS_KEY
creds := credentials.NewChainCredentials([]credentials.Provider{
&credentials.Static{
Value: credentials.Value{
AccessKeyID: cfg.KeyID,
SecretAccessKey: cfg.Secret,
},
},
&credentials.IAM{
Client: &http.Client{
Transport: http.DefaultTransport,
},
},
&credentials.EnvAWS{},
&credentials.EnvMinio{},
})
client, err := minio.NewWithCredentials(cfg.Endpoint, creds, !cfg.UseHTTP, "")
if err != nil {
return nil, errors.Wrap(err, "minio.NewWithCredentials")
}
sem, err := backend.NewSemaphore(cfg.Connections)