Fix NoCredentialProviders error when accessing public bucket on Minio (…

…#133)

* Regenerate: Fix README CI failures

Signed-off-by: Kemal Akkoyun <kakkoyun@gmail.com>

* fix #132

Co-authored-by: Kemal Akkoyun <kakkoyun@gmail.com>
Co-authored-by: Antonio Kovačeivć <antonio.kovacevic@codebreaker.hr>
Co-authored-by: Kemal Akkoyun <kakkoyun@users.noreply.github.com>

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Unreleased
 
+- Fixed Anonymous Credentials Error on public buckets
+  - Fixes [#132](https://github.com/meltwater/drone-cache/issues/132)
+
 ### Added
 
 - [#102](https://github.com/meltwater/drone-cache/pull/102) Implement option to disable cache rebuild if it already exists in storage.

storage/backend/s3/s3.go

@@ -35,6 +35,7 @@ func New(l log.Logger, c Config, debug bool) (*Backend, error) {
 		Endpoint:         &c.Endpoint,
 		DisableSSL:       aws.Bool(!strings.HasPrefix(c.Endpoint, "https://")),
 		S3ForcePathStyle: aws.Bool(c.PathStyle),
+		Credentials:      credentials.AnonymousCredentials,
 	}
 
 	if c.Key != "" && c.Secret != "" {