default --use-deprecated-gcs to true

tools/setup-envtest/README.md

@@ -41,12 +41,13 @@ setup-envtest use -i --use-env
 # sideload a pre-downloaded tarball as Kubernetes 1.16.2 into our store
 setup-envtest sideload 1.16.2 < downloaded-envtest.tar.gz
 
-# Per default envtest binaries are downloaded from: 
+# If --use-deprecated-gcs is set to false envtest binaries are downloaded from: 
 # https://raw.githubusercontent.com/kubernetes-sigs/controller-tools/master/envtest-releases.yaml
 # To download from a custom index use the following:
-setup-envtest use --index https://custom.com/envtest-releases.yaml
+# Note: In controller-runtime v0.19.0 --use-deprecated-gcs will default to false.
+setup-envtest use --use-deprecated-gcs=false --index https://custom.com/envtest-releases.yaml
 
-# To download from the kubebuilder-tools GCS bucket: (default behavior before v0.18)
+# To download from the kubebuilder-tools GCS bucket: (default behavior until v0.18)
 # Note: This is a Google-owned bucket and it might be shutdown at any time
 # see: https://github.com/kubernetes/k8s.io/issues/2647#event-12439345373
 # Note: This flag will also be removed soon.

tools/setup-envtest/main.go

@@ -50,15 +50,15 @@ var (
 	binDir = flag.String("bin-dir", "",
 		"directory to store binary assets (default: $OS_SPECIFIC_DATA_DIR/envtest-binaries)")
 
-	useDeprecatedGCS = flag.Bool("use-deprecated-gcs", false, "use GCS to fetch envtest binaries. Note: This is deprecated and will be removed soon. For more details see: https://github.com/kubernetes-sigs/controller-runtime/pull/2811")
+	useDeprecatedGCS = flag.Bool("use-deprecated-gcs", true, "use GCS to fetch envtest binaries. Note: This is deprecated and will be removed soon. For more details see: https://github.com/kubernetes-sigs/controller-runtime/pull/2811. In controller-runtime v0.19.0 this flag will default to false")
 
 	// These flags are only used with --use-deprecated-gcs.
 	remoteBucket = flag.String("remote-bucket", "kubebuilder-tools", "remote GCS bucket to download from (only used with --use-deprecated-gcs)")
 	remoteServer = flag.String("remote-server", "storage.googleapis.com",
 		"remote server to query from.  You can override this if you want to run "+
 			"an internal storage server instead, or for testing. (only used with --use-deprecated-gcs)")
 
-	// This flag is only used if --use-deprecated-gcs is not set or false (default).
+	// This flag is only used if --use-deprecated-gcs is set to false.
 	index = flag.String("index", remote.DefaultIndexURL, "index to discover envtest binaries (only used if --use-deprecated-gcs is not set, or set to false)")
 )