feat: Add cri proxy for e2e_node

add example of using CRI proxy

fix:  Invalid function call

fix:  Optimize getPodImagePullDuration

fix:  Return error if the CRI Proxy is undefined

chore:  add a document

test/e2e_node/utils_linux.go

@@ -20,6 +20,8 @@ limitations under the License.
 package e2enode
 
 import (
+	"fmt"
+
 	libcontainercgroups "github.com/opencontainers/runc/libcontainer/cgroups"
 )
 
@@ -27,3 +29,21 @@ import (
 func IsCgroup2UnifiedMode() bool {
 	return libcontainercgroups.IsCgroup2UnifiedMode()
 }
+
+// addCRIProxyInjector registers an injector function for the CRIProxy.
+func addCRIProxyInjector(injector func(apiName string) error) error {
+	if e2eCriProxy != nil {
+		e2eCriProxy.AddInjector(injector)
+		return nil
+	}
+	return fmt.Errorf("failed to add injector because the CRI Proxy is undefined")
+}
+
+// resetCRIProxyInjector resets all injector functions for the CRIProxy.
+func resetCRIProxyInjector() error {
+	if e2eCriProxy != nil {
+		e2eCriProxy.ResetInjectors()
+		return nil
+	}
+	return fmt.Errorf("failed to reset injector because the CRI Proxy is undefined")
+}