make catalog ref configurable via CATALOG_IMG env var

Signed-off-by: Bryce Palmer <everettraven@gmail.com>

test/operator-framework-e2e/operator_framework_test.go

@@ -2,6 +2,7 @@ package operatore2e
 
 import (
 	"context"
+	"os"
 	"testing"
 	"time"
 
@@ -51,6 +52,16 @@ var _ = BeforeSuite(func() {
 	ctx = context.Background()
 })
 
+// Since the CATALOG_IMG environment variable is used to configure the
+// tag of the catalog image that is built see if it is specified and use
+// it if it is. Otherwise use the default that is used in setup.sh
+func getCatalogRef() string {
+	if val, exist := os.LookupEnv("CATALOG_IMG"); exist {
+		return val
+	}
+	return "oc-opdev-e2e.operatorframework.io/catalog:e2e"
+}
+
 var _ = Describe("Operator Framework E2E", func() {
 	var catalog *catalogd.Catalog
 	BeforeEach(func() {
@@ -62,8 +73,7 @@ var _ = Describe("Operator Framework E2E", func() {
 				Source: catalogd.CatalogSource{
 					Type: catalogd.SourceTypeImage,
 					Image: &catalogd.ImageSource{
-						// TODO: make this configurable
-						Ref: "localhost/catalog:e2e",
+						Ref: getCatalogRef(),
 					},
 				},
 			},