vpa: container controlled values e2e

vertical-pod-autoscaler/e2e/v1/admission_controller.go

@@ -166,6 +166,44 @@ var _ = AdmissionControllerE2eDescribe("Admission-controller", func() {
 		}
 	})
 
+	ginkgo.It("keeps limits unchanged when container controlled values is requests only", func() {
+		d := NewHamsterDeploymentWithResourcesAndLimits(f,
+			ParseQuantityOrDie("100m") /*cpu request*/, ParseQuantityOrDie("100Mi"), /*memory request*/
+			ParseQuantityOrDie("500m") /*cpu limit*/, ParseQuantityOrDie("500Mi") /*memory limit*/)
+
+		ginkgo.By("Setting up a VPA CRD")
+		vpaCRD := NewVPA(f, "hamster-vpa", hamsterTargetRef)
+		vpaCRD.Status.Recommendation = &vpa_types.RecommendedPodResources{
+			ContainerRecommendations: []vpa_types.RecommendedContainerResources{{
+				ContainerName: "hamster",
+				Target: apiv1.ResourceList{
+					apiv1.ResourceCPU:    ParseQuantityOrDie("250m"),
+					apiv1.ResourceMemory: ParseQuantityOrDie("200Mi"),
+				},
+			}},
+		}
+		containerControlledValuesRequestsOnly := vpa_types.ContainerControlledValuesRequestsOnly
+		vpaCRD.Spec.ResourcePolicy = &vpa_types.PodResourcePolicy{
+			ContainerPolicies: []vpa_types.ContainerResourcePolicy{{
+				ContainerName:    "hamster",
+				ControlledValues: &containerControlledValuesRequestsOnly,
+			}},
+		}
+		InstallVPA(f, vpaCRD)
+
+		ginkgo.By("Setting up a hamster deployment")
+		podList := startDeploymentPods(f, d)
+
+		// Originally Pods had 100m CPU, 100Mi of memory, but admission controller
+		// should change it to 250m CPU and 200Mi of memory. Limits should stay unchanged.
+		for _, pod := range podList.Items {
+			gomega.Expect(*pod.Spec.Containers[0].Resources.Requests.Cpu()).To(gomega.Equal(ParseQuantityOrDie("250m")))
+			gomega.Expect(*pod.Spec.Containers[0].Resources.Requests.Memory()).To(gomega.Equal(ParseQuantityOrDie("200Mi")))
+			gomega.Expect(*pod.Spec.Containers[0].Resources.Limits.Cpu()).To(gomega.Equal(ParseQuantityOrDie("500m")))
+			gomega.Expect(*pod.Spec.Containers[0].Resources.Limits.Memory()).To(gomega.Equal(ParseQuantityOrDie("500Mi")))
+		}
+	})
+
 	ginkgo.It("caps request according to container max limit set in LimitRange", func() {
 		startCpuRequest := ParseQuantityOrDie("100m")
 		startCpuLimit := ParseQuantityOrDie("150m")