Add registry prefix option

This allows to pre-pull the images and running benchmarks against a
local registry.

Signed-off-by: Sascha Grunert <sgrunert@suse.com>

cmd/critest/cri_test.go

@@ -130,6 +130,7 @@ func TestCRISuite(t *testing.T) {
 
 	if *isBenchMark {
 		flag.Set("ginkgo.focus", "benchmark")
+		flag.Set("ginkgo.succinct", "true")
 	} else {
 		// Skip benchmark measurements for validation tests.
 		flag.Set("ginkgo.skipMeasurements", "true")

pkg/framework/test_context.go

@@ -42,6 +42,8 @@ type TestContextType struct {
 
 	// Test configuration.
 	IsLcow bool
+
+	RegistryPrefix string
 }
 
 // TestContext is a test context.
@@ -77,4 +79,5 @@ func RegisterFlags() {
 	} else {
 		TestContext.IsLcow = false
 	}
+	flag.StringVar(&TestContext.RegistryPrefix, "registry-prefix", "", "A possible registry prefix added to all images, like 'localhost:5000/'")
 }

pkg/framework/util.go

@@ -297,6 +297,7 @@ func ListImage(c internalapi.ImageManagerService, filter *runtimeapi.ImageFilter
 
 // PullPublicImage pulls the public image named imageName.
 func PullPublicImage(c internalapi.ImageManagerService, imageName string, podConfig *runtimeapi.PodSandboxConfig) string {
+	imageName = TestContext.RegistryPrefix + imageName
 	if !strings.Contains(imageName, ":") {
 		imageName = imageName + ":latest"
 		Logf("Use latest as default image tag.")