Merge pull request kubernetes#90404 from beautytiger/200423-nil-check

cleanup: delete unnacessary nil check before range

Author: k8s-ci-robot

test/utils/runners.go

@@ -635,37 +635,27 @@ func (config *RCConfig) create() error {
 }
 
 func (config *RCConfig) applyTo(template *v1.PodTemplateSpec) {
-	if config.Env != nil {
-		for k, v := range config.Env {
-			c := &template.Spec.Containers[0]
-			c.Env = append(c.Env, v1.EnvVar{Name: k, Value: v})
-		}
+	for k, v := range config.Env {
+		c := &template.Spec.Containers[0]
+		c.Env = append(c.Env, v1.EnvVar{Name: k, Value: v})
 	}
-	if config.Labels != nil {
-		for k, v := range config.Labels {
-			template.ObjectMeta.Labels[k] = v
-		}
+	for k, v := range config.Labels {
+		template.ObjectMeta.Labels[k] = v
 	}
-	if config.NodeSelector != nil {
-		template.Spec.NodeSelector = make(map[string]string)
-		for k, v := range config.NodeSelector {
-			template.Spec.NodeSelector[k] = v
-		}
+	template.Spec.NodeSelector = make(map[string]string)
+	for k, v := range config.NodeSelector {
+		template.Spec.NodeSelector[k] = v
 	}
 	if config.Tolerations != nil {
 		template.Spec.Tolerations = append([]v1.Toleration{}, config.Tolerations...)
 	}
-	if config.Ports != nil {
-		for k, v := range config.Ports {
-			c := &template.Spec.Containers[0]
-			c.Ports = append(c.Ports, v1.ContainerPort{Name: k, ContainerPort: int32(v)})
-		}
+	for k, v := range config.Ports {
+		c := &template.Spec.Containers[0]
+		c.Ports = append(c.Ports, v1.ContainerPort{Name: k, ContainerPort: int32(v)})
 	}
-	if config.HostPorts != nil {
-		for k, v := range config.HostPorts {
-			c := &template.Spec.Containers[0]
-			c.Ports = append(c.Ports, v1.ContainerPort{Name: k, ContainerPort: int32(v), HostPort: int32(v)})
-		}
+	for k, v := range config.HostPorts {
+		c := &template.Spec.Containers[0]
+		c.Ports = append(c.Ports, v1.ContainerPort{Name: k, ContainerPort: int32(v), HostPort: int32(v)})
 	}
 	if config.CpuLimit > 0 || config.MemLimit > 0 || config.GpuLimit > 0 {
 		template.Spec.Containers[0].Resources.Limits = v1.ResourceList{}