kubernetes progress_test 源码
kubernetes progress_test 代码
文件路径：/pkg/controller/deployment/progress_test.go
/*
Copyright 2017 The Kubernetes 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 deployment
import (
"context"
"math"
"testing"
"time"
apps "k8s.io/api/apps/v1"
"k8s.io/api/core/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/client-go/kubernetes/fake"
"k8s.io/client-go/util/workqueue"
"k8s.io/kubernetes/pkg/controller/deployment/util"
)
func newDeploymentStatus(replicas, updatedReplicas, availableReplicas int32) apps.DeploymentStatus {
return apps.DeploymentStatus{
Replicas: replicas,
UpdatedReplicas: updatedReplicas,
AvailableReplicas: availableReplicas,
}
}
// assumes the retuned deployment is always observed - not needed to be tested here.
func currentDeployment(pds *int32, replicas, statusReplicas, updatedReplicas, availableReplicas int32, conditions []apps.DeploymentCondition) *apps.Deployment {
d := &apps.Deployment{
ObjectMeta: metav1.ObjectMeta{
Name: "progress-test",
},
Spec: apps.DeploymentSpec{
ProgressDeadlineSeconds: pds,
Replicas: &replicas,
Strategy: apps.DeploymentStrategy{
Type: apps.RecreateDeploymentStrategyType,
},
},
Status: newDeploymentStatus(statusReplicas, updatedReplicas, availableReplicas),
}
d.Status.Conditions = conditions
return d
}
// helper to create RS with given availableReplicas
func newRSWithAvailable(name string, specReplicas, statusReplicas, availableReplicas int) *apps.ReplicaSet {
rs := rs(name, specReplicas, nil, metav1.Time{})
rs.Status = apps.ReplicaSetStatus{
Replicas: int32(statusReplicas),
AvailableReplicas: int32(availableReplicas),
}
return rs
}
func TestRequeueStuckDeployment(t *testing.T) {
pds := int32(60)
infinite := int32(math.MaxInt32)
failed := []apps.DeploymentCondition{
{
Type: apps.DeploymentProgressing,
Status: v1.ConditionFalse,
Reason: util.TimedOutReason,
},
}
stuck := []apps.DeploymentCondition{
{
Type: apps.DeploymentProgressing,
Status: v1.ConditionTrue,
LastUpdateTime: metav1.Date(2017, 2, 15, 18, 49, 00, 00, time.UTC),
},
}
tests := []struct {
name string
d *apps.Deployment
status apps.DeploymentStatus
nowFn func() time.Time
expected time.Duration
}{
{
name: "nil progressDeadlineSeconds specified",
d: currentDeployment(nil, 4, 3, 3, 2, nil),
status: newDeploymentStatus(3, 3, 2),
expected: time.Duration(-1),
},
{
name: "infinite progressDeadlineSeconds specified",
d: currentDeployment(&infinite, 4, 3, 3, 2, nil),
status: newDeploymentStatus(3, 3, 2),
expected: time.Duration(-1),
},
{
name: "no progressing condition found",
d: currentDeployment(&pds, 4, 3, 3, 2, nil),
status: newDeploymentStatus(3, 3, 2),
expected: time.Duration(-1),
},
{
name: "complete deployment does not need to be requeued",
d: currentDeployment(&pds, 3, 3, 3, 3, nil),
status: newDeploymentStatus(3, 3, 3),
expected: time.Duration(-1),
},
{
name: "already failed deployment does not need to be requeued",
d: currentDeployment(&pds, 3, 3, 3, 0, failed),
status: newDeploymentStatus(3, 3, 0),
expected: time.Duration(-1),
},
{
name: "stuck deployment - 30s",
d: currentDeployment(&pds, 3, 3, 3, 1, stuck),
status: newDeploymentStatus(3, 3, 1),
nowFn: func() time.Time { return metav1.Date(2017, 2, 15, 18, 49, 30, 00, time.UTC).Time },
expected: 30 * time.Second,
},
{
name: "stuck deployment - 1s",
d: currentDeployment(&pds, 3, 3, 3, 1, stuck),
status: newDeploymentStatus(3, 3, 1),
nowFn: func() time.Time { return metav1.Date(2017, 2, 15, 18, 49, 59, 00, time.UTC).Time },
expected: 1 * time.Second,
},
{
name: "failed deployment - less than a second => now",
d: currentDeployment(&pds, 3, 3, 3, 1, stuck),
status: newDeploymentStatus(3, 3, 1),
nowFn: func() time.Time { return metav1.Date(2017, 2, 15, 18, 49, 59, 1, time.UTC).Time },
expected: time.Duration(0),
},
{
name: "failed deployment - now",
d: currentDeployment(&pds, 3, 3, 3, 1, stuck),
status: newDeploymentStatus(3, 3, 1),
nowFn: func() time.Time { return metav1.Date(2017, 2, 15, 18, 50, 00, 00, time.UTC).Time },
expected: time.Duration(0),
},
{
name: "failed deployment - 1s after deadline",
d: currentDeployment(&pds, 3, 3, 3, 1, stuck),
status: newDeploymentStatus(3, 3, 1),
nowFn: func() time.Time { return metav1.Date(2017, 2, 15, 18, 50, 01, 00, time.UTC).Time },
expected: time.Duration(0),
},
{
name: "failed deployment - 60s after deadline",
d: currentDeployment(&pds, 3, 3, 3, 1, stuck),
status: newDeploymentStatus(3, 3, 1),
nowFn: func() time.Time { return metav1.Date(2017, 2, 15, 18, 51, 00, 00, time.UTC).Time },
expected: time.Duration(0),
},
}
dc := &DeploymentController{
queue: workqueue.NewNamedRateLimitingQueue(workqueue.DefaultControllerRateLimiter(), "doesnt_matter"),
}
dc.enqueueDeployment = dc.enqueue
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
if test.nowFn != nil {
nowFn = test.nowFn
}
got := dc.requeueStuckDeployment(test.d, test.status)
if got != test.expected {
t.Errorf("%s: got duration: %v, expected duration: %v", test.name, got, test.expected)
}
})
}
}
func TestSyncRolloutStatus(t *testing.T) {
pds := int32(60)
testTime := metav1.Date(2017, 2, 15, 18, 49, 00, 00, time.UTC)
failedTimedOut := apps.DeploymentCondition{
Type: apps.DeploymentProgressing,
Status: v1.ConditionFalse,
Reason: util.TimedOutReason,
}
newRSAvailable := apps.DeploymentCondition{
Type: apps.DeploymentProgressing,
Status: v1.ConditionTrue,
Reason: util.NewRSAvailableReason,
LastUpdateTime: testTime,
LastTransitionTime: testTime,
}
replicaSetUpdated := apps.DeploymentCondition{
Type: apps.DeploymentProgressing,
Status: v1.ConditionTrue,
Reason: util.ReplicaSetUpdatedReason,
LastUpdateTime: testTime,
LastTransitionTime: testTime,
}
tests := []struct {
name string
d *apps.Deployment
allRSs []*apps.ReplicaSet
newRS *apps.ReplicaSet
conditionType apps.DeploymentConditionType
conditionStatus v1.ConditionStatus
conditionReason string
lastUpdate metav1.Time
lastTransition metav1.Time
}{
{
name: "General: remove Progressing condition and do not estimate progress if deployment has no Progress Deadline",
d: currentDeployment(nil, 3, 2, 2, 2, []apps.DeploymentCondition{replicaSetUpdated}),
allRSs: []*apps.ReplicaSet{newRSWithAvailable("bar", 0, 1, 1)},
newRS: newRSWithAvailable("foo", 3, 2, 2),
},
{
name: "General: do not estimate progress of deployment with only one active ReplicaSet",
d: currentDeployment(&pds, 3, 3, 3, 3, []apps.DeploymentCondition{newRSAvailable}),
allRSs: []*apps.ReplicaSet{newRSWithAvailable("bar", 3, 3, 3)},
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.NewRSAvailableReason,
lastUpdate: testTime,
lastTransition: testTime,
},
{
name: "DeploymentProgressing: dont update lastTransitionTime if deployment already has Progressing=True",
d: currentDeployment(&pds, 3, 2, 2, 2, []apps.DeploymentCondition{replicaSetUpdated}),
allRSs: []*apps.ReplicaSet{newRSWithAvailable("bar", 0, 1, 1)},
newRS: newRSWithAvailable("foo", 3, 2, 2),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.ReplicaSetUpdatedReason,
lastTransition: testTime,
},
{
name: "DeploymentProgressing: update everything if deployment has Progressing=False",
d: currentDeployment(&pds, 3, 2, 2, 2, []apps.DeploymentCondition{failedTimedOut}),
allRSs: []*apps.ReplicaSet{newRSWithAvailable("bar", 0, 1, 1)},
newRS: newRSWithAvailable("foo", 3, 2, 2),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.ReplicaSetUpdatedReason,
},
{
name: "DeploymentProgressing: create Progressing condition if it does not exist",
d: currentDeployment(&pds, 3, 2, 2, 2, []apps.DeploymentCondition{}),
allRSs: []*apps.ReplicaSet{newRSWithAvailable("bar", 0, 1, 1)},
newRS: newRSWithAvailable("foo", 3, 2, 2),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.ReplicaSetUpdatedReason,
},
{
name: "DeploymentComplete: dont update lastTransitionTime if deployment already has Progressing=True",
d: currentDeployment(&pds, 3, 3, 3, 3, []apps.DeploymentCondition{replicaSetUpdated}),
allRSs: []*apps.ReplicaSet{},
newRS: newRSWithAvailable("foo", 3, 3, 3),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.NewRSAvailableReason,
lastTransition: testTime,
},
{
name: "DeploymentComplete: update everything if deployment has Progressing=False",
d: currentDeployment(&pds, 3, 3, 3, 3, []apps.DeploymentCondition{failedTimedOut}),
allRSs: []*apps.ReplicaSet{},
newRS: newRSWithAvailable("foo", 3, 3, 3),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.NewRSAvailableReason,
},
{
name: "DeploymentComplete: create Progressing condition if it does not exist",
d: currentDeployment(&pds, 3, 3, 3, 3, []apps.DeploymentCondition{}),
allRSs: []*apps.ReplicaSet{},
newRS: newRSWithAvailable("foo", 3, 3, 3),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.NewRSAvailableReason,
},
{
name: "DeploymentComplete: defend against NPE when newRS=nil",
d: currentDeployment(&pds, 0, 3, 3, 3, []apps.DeploymentCondition{replicaSetUpdated}),
allRSs: []*apps.ReplicaSet{newRSWithAvailable("foo", 0, 0, 0)},
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionTrue,
conditionReason: util.NewRSAvailableReason,
},
{
name: "DeploymentTimedOut: update status if rollout exceeds Progress Deadline",
d: currentDeployment(&pds, 3, 2, 2, 2, []apps.DeploymentCondition{replicaSetUpdated}),
allRSs: []*apps.ReplicaSet{},
newRS: newRSWithAvailable("foo", 3, 2, 2),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionFalse,
conditionReason: util.TimedOutReason,
},
{
name: "DeploymentTimedOut: do not update status if deployment has existing timedOut condition",
d: currentDeployment(&pds, 3, 2, 2, 2, []apps.DeploymentCondition{failedTimedOut}),
allRSs: []*apps.ReplicaSet{},
newRS: newRSWithAvailable("foo", 3, 2, 2),
conditionType: apps.DeploymentProgressing,
conditionStatus: v1.ConditionFalse,
conditionReason: util.TimedOutReason,
lastUpdate: testTime,
lastTransition: testTime,
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
fake := fake.Clientset{}
dc := &DeploymentController{
client: &fake,
}
if test.newRS != nil {
test.allRSs = append(test.allRSs, test.newRS)
}
err := dc.syncRolloutStatus(context.TODO(), test.allRSs, test.newRS, test.d)
if err != nil {
t.Error(err)
}
newCond := util.GetDeploymentCondition(test.d.Status, test.conditionType)
switch {
case newCond == nil:
if test.d.Spec.ProgressDeadlineSeconds != nil && *test.d.Spec.ProgressDeadlineSeconds != math.MaxInt32 {
t.Errorf("%s: expected deployment condition: %s", test.name, test.conditionType)
}
case newCond.Status != test.conditionStatus || newCond.Reason != test.conditionReason:
t.Errorf("%s: DeploymentProgressing has status %s with reason %s. Expected %s with %s.", test.name, newCond.Status, newCond.Reason, test.conditionStatus, test.conditionReason)
case !test.lastUpdate.IsZero() && test.lastUpdate != testTime:
t.Errorf("%s: LastUpdateTime was changed to %s but expected %s;", test.name, test.lastUpdate, testTime)
case !test.lastTransition.IsZero() && test.lastTransition != testTime:
t.Errorf("%s: LastTransitionTime was changed to %s but expected %s;", test.name, test.lastTransition, testTime)
}
})
}
}
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