support bluegreen release: release logic

Signed-off-by: yunbo <[email protected]>

pkg/controller/rollout/rollout_bluegreen_test.go

@@ -0,0 +1,331 @@
+/*
+Copyright 2022 The Kruise Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package rollout
+
+import (
+	"context"
+	"reflect"
+	"testing"
+
+	"github.com/openkruise/rollouts/api/v1alpha1"
+	"github.com/openkruise/rollouts/api/v1beta1"
+	"github.com/openkruise/rollouts/pkg/trafficrouting"
+	"github.com/openkruise/rollouts/pkg/util"
+	apps "k8s.io/api/apps/v1"
+	corev1 "k8s.io/api/core/v1"
+	netv1 "k8s.io/api/networking/v1"
+
+	// metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+	"k8s.io/apimachinery/pkg/util/intstr"
+	"k8s.io/client-go/tools/record"
+	utilpointer "k8s.io/utils/pointer"
+	"sigs.k8s.io/controller-runtime/pkg/client"
+	"sigs.k8s.io/controller-runtime/pkg/client/fake"
+)
+
+func TestBlueGreenRunCanary(t *testing.T) {
+	cases := []struct {
+		name         string
+		getObj       func() ([]*apps.Deployment, []*apps.ReplicaSet)
+		getNetwork   func() ([]*corev1.Service, []*netv1.Ingress)
+		getRollout   func() (*v1beta1.Rollout, *v1beta1.BatchRelease)
+		expectStatus func() *v1beta1.RolloutStatus
+		expectBr     func() *v1beta1.BatchRelease
+	}{
+		{
+			name: "run bluegreen upgrade1",
+			getObj: func() ([]*apps.Deployment, []*apps.ReplicaSet) {
+				dep1 := deploymentDemo.DeepCopy()
+				rs1 := rsDemo.DeepCopy()
+				return []*apps.Deployment{dep1}, []*apps.ReplicaSet{rs1}
+			},
+			getNetwork: func() ([]*corev1.Service, []*netv1.Ingress) {
+				return []*corev1.Service{demoService.DeepCopy()}, []*netv1.Ingress{demoIngress.DeepCopy()}
+			},
+			getRollout: func() (*v1beta1.Rollout, *v1beta1.BatchRelease) {
+				obj := rolloutDemoBlueGreen.DeepCopy()
+				obj.Status.BlueGreenStatus.ObservedWorkloadGeneration = 2
+				obj.Status.BlueGreenStatus.RolloutHash = "f55bvd874d5f2fzvw46bv966x4bwbdv4wx6bd9f7b46ww788954b8z8w29b7wxfd"
+				obj.Status.BlueGreenStatus.StableRevision = "pod-template-hash-v1"
+				obj.Status.BlueGreenStatus.UpdatedRevision = "6f8cc56547"
+				obj.Status.BlueGreenStatus.CurrentStepIndex = 1
+				obj.Status.BlueGreenStatus.NextStepIndex = 2
+				obj.Status.BlueGreenStatus.CurrentStepState = v1beta1.CanaryStepStateUpgrade
+				cond := util.GetRolloutCondition(obj.Status, v1beta1.RolloutConditionProgressing)
+				cond.Reason = v1alpha1.ProgressingReasonInRolling
+				util.SetRolloutCondition(&obj.Status, *cond)
+				return obj, nil
+			},
+			expectStatus: func() *v1beta1.RolloutStatus {
+				s := rolloutDemoBlueGreen.Status.DeepCopy()
+				s.BlueGreenStatus.ObservedWorkloadGeneration = 2
+				s.BlueGreenStatus.RolloutHash = "f55bvd874d5f2fzvw46bv966x4bwbdv4wx6bd9f7b46ww788954b8z8w29b7wxfd"
+				s.BlueGreenStatus.StableRevision = "pod-template-hash-v1"
+				s.BlueGreenStatus.UpdatedRevision = "6f8cc56547"
+				s.BlueGreenStatus.CurrentStepIndex = 1
+				s.BlueGreenStatus.NextStepIndex = 2
+				s.BlueGreenStatus.CurrentStepState = v1beta1.CanaryStepStateUpgrade
+				cond := util.GetRolloutCondition(*s, v1beta1.RolloutConditionProgressing)
+				cond.Reason = v1alpha1.ProgressingReasonInRolling
+				util.SetRolloutCondition(s, *cond)
+				return s
+			},
+			expectBr: func() *v1beta1.BatchRelease {
+				br := batchDemo.DeepCopy()
+				br.Spec.ReleasePlan.Batches = []v1beta1.ReleaseBatch{
+					{
+						CanaryReplicas: intstr.FromString("50%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+				}
+				br.Spec.ReleasePlan.BatchPartition = utilpointer.Int32(0)
+				br.Spec.ReleasePlan.RollingStyle = v1beta1.BlueGreenRollingStyle
+				return br
+			},
+		},
+		{
+			name: "run bluegreen traffic routing",
+			getObj: func() ([]*apps.Deployment, []*apps.ReplicaSet) {
+				dep1 := deploymentDemo.DeepCopy()
+				rs1 := rsDemo.DeepCopy()
+				rs2 := rsDemo.DeepCopy()
+				rs2.Name = "echoserver-canary"
+				rs2.Labels["pod-template-hash"] = "pod-template-hash-v2"
+				rs2.Spec.Template.Spec.Containers[0].Image = "echoserver:v2"
+				return []*apps.Deployment{dep1}, []*apps.ReplicaSet{rs1, rs2}
+			},
+			getNetwork: func() ([]*corev1.Service, []*netv1.Ingress) {
+				return []*corev1.Service{demoService.DeepCopy()}, []*netv1.Ingress{demoIngress.DeepCopy()}
+			},
+			getRollout: func() (*v1beta1.Rollout, *v1beta1.BatchRelease) {
+				obj := rolloutDemoBlueGreen.DeepCopy()
+				obj.Status.BlueGreenStatus.ObservedWorkloadGeneration = 2
+				obj.Status.BlueGreenStatus.RolloutHash = "f55bvd874d5f2fzvw46bv966x4bwbdv4wx6bd9f7b46ww788954b8z8w29b7wxfd"
+				obj.Status.BlueGreenStatus.StableRevision = "pod-template-hash-v1"
+				obj.Status.BlueGreenStatus.UpdatedRevision = "6f8cc56547"
+				obj.Status.BlueGreenStatus.CurrentStepIndex = 1
+				obj.Status.BlueGreenStatus.NextStepIndex = 2
+				obj.Status.BlueGreenStatus.CurrentStepState = v1beta1.CanaryStepStateUpgrade
+				cond := util.GetRolloutCondition(obj.Status, v1beta1.RolloutConditionProgressing)
+				cond.Reason = v1alpha1.ProgressingReasonInRolling
+				util.SetRolloutCondition(&obj.Status, *cond)
+				br := batchDemo.DeepCopy()
+				br.Spec.ReleasePlan.Batches = []v1beta1.ReleaseBatch{
+					{
+						CanaryReplicas: intstr.FromString("50%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+				}
+				br.Spec.ReleasePlan.BatchPartition = utilpointer.Int32(0)
+				br.Spec.ReleasePlan.RollingStyle = v1beta1.BlueGreenRollingStyle
+				br.Status = v1beta1.BatchReleaseStatus{
+					ObservedGeneration:      1,
+					ObservedReleasePlanHash: util.HashReleasePlanBatches(&br.Spec.ReleasePlan),
+					CanaryStatus: v1beta1.BatchReleaseCanaryStatus{
+						CurrentBatchState:    v1beta1.ReadyBatchState,
+						CurrentBatch:         0,
+						UpdatedReplicas:      1,
+						UpdatedReadyReplicas: 1,
+					},
+				}
+				return obj, br
+			},
+			expectStatus: func() *v1beta1.RolloutStatus {
+				s := rolloutDemoBlueGreen.Status.DeepCopy()
+				s.BlueGreenStatus.ObservedWorkloadGeneration = 2
+				s.BlueGreenStatus.RolloutHash = "f55bvd874d5f2fzvw46bv966x4bwbdv4wx6bd9f7b46ww788954b8z8w29b7wxfd"
+				s.BlueGreenStatus.StableRevision = "pod-template-hash-v1"
+				s.BlueGreenStatus.UpdatedRevision = "6f8cc56547"
+				s.BlueGreenStatus.PodTemplateHash = "pod-template-hash-v2"
+				s.BlueGreenStatus.UpdatedReplicas = 1
+				s.BlueGreenStatus.UpdatedReadyReplicas = 1
+				s.BlueGreenStatus.CurrentStepIndex = 1
+				s.BlueGreenStatus.NextStepIndex = 2
+				s.BlueGreenStatus.CurrentStepState = v1beta1.CanaryStepStateTrafficRouting
+				cond := util.GetRolloutCondition(*s, v1beta1.RolloutConditionProgressing)
+				cond.Reason = v1alpha1.ProgressingReasonInRolling
+				util.SetRolloutCondition(s, *cond)
+				return s
+			},
+			expectBr: func() *v1beta1.BatchRelease {
+				br := batchDemo.DeepCopy()
+				br.Spec.ReleasePlan.Batches = []v1beta1.ReleaseBatch{
+					{
+						CanaryReplicas: intstr.FromString("50%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+					{
+						CanaryReplicas: intstr.FromString("100%"),
+					},
+				}
+				br.Spec.ReleasePlan.BatchPartition = utilpointer.Int32(0)
+				br.Spec.ReleasePlan.RollingStyle = v1beta1.BlueGreenRollingStyle
+				return br
+			},
+		},
+	}
+
+	for _, cs := range cases {
+		t.Run(cs.name, func(t *testing.T) {
+			deps, rss := cs.getObj()
+			rollout, br := cs.getRollout()
+			fc := fake.NewClientBuilder().WithScheme(scheme).WithObjects(rollout).Build()
+			for _, rs := range rss {
+				_ = fc.Create(context.TODO(), rs)
+			}
+			for _, dep := range deps {
+				_ = fc.Create(context.TODO(), dep)
+			}
+			if br != nil {
+				_ = fc.Create(context.TODO(), br)
+			}
+			ss, in := cs.getNetwork()
+			_ = fc.Create(context.TODO(), ss[0])
+			_ = fc.Create(context.TODO(), in[0])
+			r := &RolloutReconciler{
+				Client:                fc,
+				Scheme:                scheme,
+				Recorder:              record.NewFakeRecorder(10),
+				finder:                util.NewControllerFinder(fc),
+				trafficRoutingManager: trafficrouting.NewTrafficRoutingManager(fc),
+			}
+			r.blueGreenManager = &blueGreenReleaseManager{
+				Client:                fc,
+				trafficRoutingManager: r.trafficRoutingManager,
+				recorder:              r.Recorder,
+			}
+			workload, err := r.finder.GetWorkloadForRef(rollout)
+			if err != nil {
+				t.Fatalf("GetWorkloadForRef failed: %s", err.Error())
+			}
+			c := &RolloutContext{
+				Rollout:   rollout,
+				NewStatus: rollout.Status.DeepCopy(),
+				Workload:  workload,
+			}
+			err = r.blueGreenManager.runCanary(c)
+			if err != nil {
+				t.Fatalf("reconcileRolloutProgressing failed: %s", err.Error())
+			}
+			checkBatchReleaseEqual(fc, t, client.ObjectKey{Name: rollout.Name}, cs.expectBr())
+			cStatus := c.NewStatus.DeepCopy()
+			cStatus.Message = ""
+			if cStatus.BlueGreenStatus != nil {
+				cStatus.BlueGreenStatus.LastUpdateTime = nil
+				cStatus.BlueGreenStatus.Message = ""
+			}
+			cond := util.GetRolloutCondition(*cStatus, v1beta1.RolloutConditionProgressing)
+			cond.Message = ""
+			util.SetRolloutCondition(cStatus, *cond)
+			expectStatus := cs.expectStatus()
+			if !reflect.DeepEqual(expectStatus, cStatus) {
+				t.Fatalf("expect(%s), but get(%s)", util.DumpJSON(cs.expectStatus()), util.DumpJSON(cStatus))
+			}
+		})
+	}
+}
+
+func TestBlueGreenRunCanaryPaused(t *testing.T) {
+	cases := []struct {
+		name         string
+		getRollout   func() *v1beta1.Rollout
+		expectStatus func() *v1beta1.RolloutStatus
+	}{
+		{
+			name: "paused, last step, 60% weight",
+			getRollout: func() *v1beta1.Rollout {
+				obj := rolloutDemoBlueGreen.DeepCopy()
+				obj.Status.BlueGreenStatus.ObservedWorkloadGeneration = 2
+				obj.Status.BlueGreenStatus.RolloutHash = "f55bvd874d5f2fzvw46bv966x4bwbdv4wx6bd9f7b46ww788954b8z8w29b7wxfd"
+				obj.Status.BlueGreenStatus.StableRevision = "pod-template-hash-v1"
+				obj.Status.BlueGreenStatus.UpdatedRevision = "6f8cc56547"
+				obj.Status.BlueGreenStatus.CurrentStepIndex = 3
+				obj.Status.BlueGreenStatus.NextStepIndex = 4
+				obj.Status.BlueGreenStatus.PodTemplateHash = "pod-template-hash-v2"
+				obj.Status.BlueGreenStatus.CurrentStepState = v1beta1.CanaryStepStatePaused
+				return obj
+			},
+			expectStatus: func() *v1beta1.RolloutStatus {
+				obj := rolloutDemoBlueGreen.Status.DeepCopy()
+				obj.BlueGreenStatus.ObservedWorkloadGeneration = 2
+				obj.BlueGreenStatus.RolloutHash = "f55bvd874d5f2fzvw46bv966x4bwbdv4wx6bd9f7b46ww788954b8z8w29b7wxfd"
+				obj.BlueGreenStatus.StableRevision = "pod-template-hash-v1"
+				obj.BlueGreenStatus.UpdatedRevision = "6f8cc56547"
+				obj.BlueGreenStatus.CurrentStepIndex = 3
+				obj.BlueGreenStatus.NextStepIndex = 4
+				obj.BlueGreenStatus.PodTemplateHash = "pod-template-hash-v2"
+				obj.BlueGreenStatus.CurrentStepState = v1beta1.CanaryStepStatePaused
+				return obj
+			},
+		},
+	}
+
+	for _, cs := range cases {
+		t.Run(cs.name, func(t *testing.T) {
+			rollout := cs.getRollout()
+			fc := fake.NewClientBuilder().WithScheme(scheme).WithObjects(rollout).Build()
+			r := &RolloutReconciler{
+				Client:                fc,
+				Scheme:                scheme,
+				Recorder:              record.NewFakeRecorder(10),
+				finder:                util.NewControllerFinder(fc),
+				trafficRoutingManager: trafficrouting.NewTrafficRoutingManager(fc),
+			}
+			r.blueGreenManager = &blueGreenReleaseManager{
+				Client:                fc,
+				trafficRoutingManager: r.trafficRoutingManager,
+				recorder:              r.Recorder,
+			}
+			c := &RolloutContext{
+				Rollout:   rollout,
+				NewStatus: rollout.Status.DeepCopy(),
+			}
+			err := r.blueGreenManager.runCanary(c)
+			if err != nil {
+				t.Fatalf("reconcileRolloutProgressing failed: %s", err.Error())
+			}
+			cStatus := c.NewStatus.DeepCopy()
+			cStatus.BlueGreenStatus.LastUpdateTime = nil
+			cStatus.BlueGreenStatus.Message = ""
+			cStatus.Message = ""
+			if !reflect.DeepEqual(cs.expectStatus(), cStatus) {
+				t.Fatalf("expect(%s), but get(%s)", util.DumpJSON(cs.expectStatus()), util.DumpJSON(cStatus))
+			}
+		})
+	}
+}