fix race condition while creating buckets

go.mod

@@ -4,13 +4,33 @@ go 1.15
 
 require (
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
+	github.com/golang/protobuf v1.4.3 // indirect
+	github.com/google/go-cmp v0.5.2 // indirect
+	github.com/google/uuid v1.1.2 // indirect
+	github.com/gopherjs/gopherjs v0.0.0-20190328170749-bb2674552d8f // indirect
+	github.com/kr/text v0.2.0 // indirect
 	github.com/kubernetes-sigs/container-object-storage-interface-api v0.0.0-20201210173615-0c3244fa34b9
+	github.com/mailru/easyjson v0.7.6 // indirect
+	github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/smartystreets/assertions v1.1.1 // indirect
 	github.com/spf13/cobra v1.1.1
 	github.com/spf13/viper v1.7.1
+	github.com/stretchr/testify v1.6.1 // indirect
+	golang.org/x/crypto v0.0.0-20201124201722-c8d3bf9c5392 // indirect
+	golang.org/x/net v0.0.0-20201216054612-986b41b23924 // indirect
+	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d // indirect
+	golang.org/x/text v0.3.4 // indirect
 	golang.org/x/time v0.0.0-20191024005414-555d28b269f0
+	golang.org/x/tools v0.0.0-20210108195828-e2f9c7f1fc8e // indirect
+	gopkg.in/check.v1 v1.0.0-20200902074654-038fdea0a05b // indirect
+	gopkg.in/ini.v1 v1.57.0 // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776 // indirect
 	k8s.io/api v0.19.4
 	k8s.io/apiextensions-apiserver v0.19.4
 	k8s.io/apimachinery v0.19.4
 	k8s.io/client-go v0.19.4
+	k8s.io/klog/v2 v2.4.0 // indirect
+	k8s.io/kube-openapi v0.0.0-20201113171705-d219536bb9fd // indirect
 	sigs.k8s.io/controller-tools v0.4.1
 )