Fix support for min.io with Google Cloud Storage (#152)

Adds MINIO_BUCKET_SEP options to control the separator string

compose/service/service.go

@@ -108,7 +108,7 @@ func Initialize(ctx context.Context, log *zap.Logger, s store.Storer, c Config)
 		if c.Storage.MinioEndpoint != "" {
 			var bucket = svcPath
 			if c.Storage.MinioBucket != "" {
-				bucket = c.Storage.MinioBucket + "/" + svcPath
+				bucket = c.Storage.MinioBucket + c.Storage.MinioBucketSep + svcPath
 			}
 
 			DefaultObjectStore, err = minio.New(bucket, minio.Options{

pkg/options/objectStore.gen.go

@@ -17,6 +17,7 @@ type (
 		MinioSecretKey string `env:"MINIO_SECRET_KEY"`
 		MinioSSECKey   string `env:"MINIO_SSEC_KEY"`
 		MinioBucket    string `env:"MINIO_BUCKET"`
+		MinioBucketSep string `env:"MINIO_BUCKET_SEP"`
 		MinioStrict    bool   `env:"MINIO_STRICT"`
 	}
 )
@@ -24,9 +25,10 @@ type (
 // ObjectStore initializes and returns a ObjectStoreOpt with default values
 func ObjectStore() (o *ObjectStoreOpt) {
 	o = &ObjectStoreOpt{
-		Path:        "var/store",
-		MinioSecure: true,
-		MinioStrict: false,
+		Path:           "var/store",
+		MinioSecure:    true,
+		MinioBucketSep: "/",
+		MinioStrict:    false,
 	}
 
 	fill(o)

pkg/options/objectStore.yaml

@@ -30,6 +30,11 @@ props:
   - name: minioBucket
     env: MINIO_BUCKET
 
+  - name: minioBucketSep
+    env: MINIO_BUCKET_SEP
+    default: "/"
+    description: Used between MINIO_BUCKET and the service name (e.g system). Ignored if MINIO_BUCKET is not set. Required in latest versions of min.io since "/" is not accepted anymore in bucket names.
+
   - name: minioStrict
     type: bool
     env: MINIO_STRICT

system/service/service.go

@@ -123,7 +123,7 @@ func Initialize(ctx context.Context, log *zap.Logger, s store.Storer, c Config)
 		if c.Storage.MinioEndpoint != "" {
 			var bucket = svcPath
 			if c.Storage.MinioBucket != "" {
-				bucket = c.Storage.MinioBucket + "/" + svcPath
+				bucket = c.Storage.MinioBucket + c.Storage.MinioBucketSep + svcPath
 			}
 
 			DefaultObjectStore, err = minio.New(bucket, minio.Options{