mirror.patch

diff --git a/conformance/setup.go b/conformance/setup.go
index 50ff4c8..b267e6d 100644
--- a/conformance/setup.go
+++ b/conformance/setup.go
@@ -77,6 +77,7 @@ const (
 	envVarCrossmountNamespace       = "OCI_CROSSMOUNT_NAMESPACE"
 	envVarAutomaticCrossmount       = "OCI_AUTOMATIC_CROSSMOUNT"
 	envVarReportDir                 = "OCI_REPORT_DIR"
+	envVarMirrorURL                 = "OCI_MIRROR_URL"
 
 	emptyLayerTestTag = "emptylayer"
 	testTagName       = "tagtest0"
@@ -185,6 +186,8 @@ func init() {
 		crossmountNamespace = fmt.Sprintf("conformance-%s", uuid.New())
 	}
 
+	mirrorURL := os.Getenv(envVarMirrorURL)
+
 	debug, _ := strconv.ParseBool(os.Getenv(envVarDebug))
 
 	for envVar, enableTest := range testMap {
@@ -209,6 +212,8 @@ func init() {
 	client.SetLogger(logger)
 	client.SetCookieJar(nil)
 
+	client.SetQueryParam("ns", mirrorURL)
+
 	// create a unique config for each workflow category
 	for i := 0; i < numWorkflows; i++ {