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fix Scaled down deployments cannot identify old replica sets

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This commit is contained in:
shiywang
2017-03-22 17:26:13 +08:00
parent e3f6f14bf0
commit 49161d1b18
4 changed files with 62 additions and 139 deletions
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120
pkg/controller/deployment/util/deployment_util_test.go
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@@ -241,7 +241,7 @@ func generateDeployment(image string) extensions.Deployment {
}
}
func TestGetNewRC(t *testing.T) {
func TestGetNewRS(t *testing.T) {
newDeployment := generateDeployment("nginx")
newRC := generateRS(newDeployment)
@@ -297,27 +297,23 @@ func TestGetNewRC(t *testing.T) {
}
}
func TestGetOldRCs(t *testing.T) {
func TestGetOldRSs(t *testing.T) {
newDeployment := generateDeployment("nginx")
newRS := generateRS(newDeployment)
newRS.Status.FullyLabeledReplicas = *(newRS.Spec.Replicas)
newPod := generatePodFromRS(newRS)
// create 2 old deployments and related replica sets/pods, with the same labels but different template
oldDeployment := generateDeployment("nginx")
oldDeployment.Spec.Template.Spec.Containers[0].Name = "nginx-old-1"
oldRS := generateRS(oldDeployment)
oldRS.Status.FullyLabeledReplicas = *(oldRS.Spec.Replicas)
oldPod := generatePodFromRS(oldRS)
oldDeployment2 := generateDeployment("nginx")
oldDeployment2.Spec.Template.Spec.Containers[0].Name = "nginx-old-2"
oldRS2 := generateRS(oldDeployment2)
oldRS2.Status.FullyLabeledReplicas = *(oldRS2.Spec.Replicas)
oldPod2 := generatePodFromRS(oldRS2)
// create 1 ReplicaSet that existed before the deployment,
// with the same labels as the deployment, but no ControllerRef.
existedPod := generatePod(newDeployment.Spec.Template.Labels, "foo")
existedRS := generateRSWithLabel(newDeployment.Spec.Template.Labels, "foo")
existedRS.Status.FullyLabeledReplicas = *(existedRS.Spec.Replicas)
@@ -329,13 +325,6 @@ func TestGetOldRCs(t *testing.T) {
{
"No old ReplicaSets",
[]runtime.Object{
&v1.PodList{
Items: []v1.Pod{
generatePod(newDeployment.Spec.Template.Labels, "foo"),
generatePod(newDeployment.Spec.Template.Labels, "bar"),
newPod,
},
},
&extensions.ReplicaSetList{
Items: []extensions.ReplicaSet{
generateRS(generateDeployment("foo")),
@@ -344,21 +333,11 @@ func TestGetOldRCs(t *testing.T) {
},
},
},
[]*extensions.ReplicaSet{},
nil,
},
{
"Has old ReplicaSet",
[]runtime.Object{
&v1.PodList{
Items: []v1.Pod{
oldPod,
oldPod2,
generatePod(map[string]string{"name": "bar"}, "bar"),
generatePod(map[string]string{"name": "xyz"}, "xyz"),
existedPod,
generatePod(newDeployment.Spec.Template.Labels, "abc"),
},
},
&extensions.ReplicaSetList{
Items: []extensions.ReplicaSet{
oldRS2,
@@ -376,12 +355,10 @@ func TestGetOldRCs(t *testing.T) {
for _, test := range tests {
fakeClient := &fake.Clientset{}
fakeClient = addListPodsReactor(fakeClient, test.objs[0])
fakeClient = addListRSReactor(fakeClient, test.objs[1])
fakeClient = addGetRSReactor(fakeClient, test.objs[1])
fakeClient = addUpdatePodsReactor(fakeClient)
fakeClient = addListRSReactor(fakeClient, test.objs[0])
fakeClient = addGetRSReactor(fakeClient, test.objs[0])
fakeClient = addUpdateRSReactor(fakeClient)
rss, _, err := GetOldReplicaSets(&newDeployment, fakeClient)
_, rss, err := GetOldReplicaSets(&newDeployment, fakeClient)
if err != nil {
t.Errorf("In test case %s, got unexpected error %v", test.test, err)
}
@@ -558,6 +535,7 @@ func TestFindOldReplicaSets(t *testing.T) {
deployment := generateDeployment("nginx")
newRS := generateRS(deployment)
*(newRS.Spec.Replicas) = 1
newRS.Labels[extensions.DefaultDeploymentUniqueLabelKey] = "hash"
newRS.CreationTimestamp = later
@@ -571,70 +549,54 @@ func TestFindOldReplicaSets(t *testing.T) {
oldRS.Status.FullyLabeledReplicas = *(oldRS.Spec.Replicas)
oldRS.CreationTimestamp = before
newPod := generatePodFromRS(newRS)
oldPod := generatePodFromRS(oldRS)
tests := []struct {
test string
deployment extensions.Deployment
rsList []*extensions.ReplicaSet
podList *v1.PodList
expected []*extensions.ReplicaSet
test string
deployment extensions.Deployment
rsList []*extensions.ReplicaSet
podList *v1.PodList
expected []*extensions.ReplicaSet
expectedRequire []*extensions.ReplicaSet
}{
{
test: "Get old ReplicaSets",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&newRS, &oldRS},
podList: &v1.PodList{
Items: []v1.Pod{
newPod,
oldPod,
},
},
expected: []*extensions.ReplicaSet{&oldRS},
test: "Get old ReplicaSets",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&newRS, &oldRS},
expected: []*extensions.ReplicaSet{&oldRS},
expectedRequire: nil,
},
{
test: "Get old ReplicaSets with no new ReplicaSet",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&oldRS},
podList: &v1.PodList{
Items: []v1.Pod{
oldPod,
},
},
expected: []*extensions.ReplicaSet{&oldRS},
test: "Get old ReplicaSets with no new ReplicaSet",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&oldRS},
expected: []*extensions.ReplicaSet{&oldRS},
expectedRequire: nil,
},
{
test: "Get old ReplicaSets with two new ReplicaSets, only the oldest new ReplicaSet is seen as new ReplicaSet",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&oldRS, &newRS, &newRSDup},
podList: &v1.PodList{
Items: []v1.Pod{
newPod,
oldPod,
},
},
expected: []*extensions.ReplicaSet{&oldRS, &newRS},
test: "Get old ReplicaSets with two new ReplicaSets, only the oldest new ReplicaSet is seen as new ReplicaSet",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&oldRS, &newRS, &newRSDup},
expected: []*extensions.ReplicaSet{&oldRS, &newRS},
expectedRequire: []*extensions.ReplicaSet{&newRS},
},
{
test: "Get empty old ReplicaSets",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&newRS},
podList: &v1.PodList{
Items: []v1.Pod{
newPod,
},
},
expected: []*extensions.ReplicaSet{},
test: "Get empty old ReplicaSets",
deployment: deployment,
rsList: []*extensions.ReplicaSet{&newRS},
expected: nil,
expectedRequire: nil,
},
}
for _, test := range tests {
old, _, err := FindOldReplicaSets(&test.deployment, test.rsList, test.podList)
sort.Sort(controller.ReplicaSetsByCreationTimestamp(old))
requireRS, allRS, err := FindOldReplicaSets(&test.deployment, test.rsList)
sort.Sort(controller.ReplicaSetsByCreationTimestamp(allRS))
sort.Sort(controller.ReplicaSetsByCreationTimestamp(test.expected))
if !reflect.DeepEqual(old, test.expected) || err != nil {
t.Errorf("In test case %q, expected %#v, got %#v: %v", test.test, test.expected, old, err)
if !reflect.DeepEqual(allRS, test.expected) || err != nil {
t.Errorf("In test case %q, expected %#v, got %#v: %v", test.test, test.expected, allRS, err)
}
// RSs are getting filtered correctly by rs.spec.replicas
if !reflect.DeepEqual(requireRS, test.expectedRequire) || err != nil {
t.Errorf("In test case %q, expected %#v, got %#v: %v", test.test, test.expectedRequire, requireRS, err)
}
}
}