758 lines
22 KiB
Go
758 lines
22 KiB
Go
/*
|
|
Copyright 2015 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 cmd
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/http"
|
|
"net/url"
|
|
"os"
|
|
"reflect"
|
|
"strconv"
|
|
"strings"
|
|
"testing"
|
|
"time"
|
|
|
|
"github.com/spf13/cobra"
|
|
|
|
apierrors "k8s.io/apimachinery/pkg/api/errors"
|
|
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
|
|
"k8s.io/apimachinery/pkg/runtime"
|
|
"k8s.io/apimachinery/pkg/runtime/schema"
|
|
"k8s.io/apimachinery/pkg/types"
|
|
"k8s.io/apimachinery/pkg/util/wait"
|
|
"k8s.io/kubernetes/pkg/api"
|
|
"k8s.io/kubernetes/pkg/api/testapi"
|
|
"k8s.io/kubernetes/pkg/apis/batch"
|
|
"k8s.io/kubernetes/pkg/apis/extensions"
|
|
"k8s.io/kubernetes/pkg/apis/policy"
|
|
"k8s.io/kubernetes/pkg/client/restclient/fake"
|
|
cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
|
|
cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
|
|
)
|
|
|
|
const (
|
|
EvictionMethod = "Eviction"
|
|
DeleteMethod = "Delete"
|
|
)
|
|
|
|
var node *api.Node
|
|
var cordoned_node *api.Node
|
|
|
|
func TestMain(m *testing.M) {
|
|
// Create a node.
|
|
node = &api.Node{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "node",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
},
|
|
Spec: api.NodeSpec{
|
|
ExternalID: "node",
|
|
},
|
|
Status: api.NodeStatus{},
|
|
}
|
|
clone, _ := api.Scheme.DeepCopy(node)
|
|
|
|
// A copy of the same node, but cordoned.
|
|
cordoned_node = clone.(*api.Node)
|
|
cordoned_node.Spec.Unschedulable = true
|
|
os.Exit(m.Run())
|
|
}
|
|
|
|
func TestCordon(t *testing.T) {
|
|
tests := []struct {
|
|
description string
|
|
node *api.Node
|
|
expected *api.Node
|
|
cmd func(cmdutil.Factory, io.Writer) *cobra.Command
|
|
arg string
|
|
expectFatal bool
|
|
}{
|
|
{
|
|
description: "node/node syntax",
|
|
node: cordoned_node,
|
|
expected: node,
|
|
cmd: NewCmdUncordon,
|
|
arg: "node/node",
|
|
expectFatal: false,
|
|
},
|
|
{
|
|
description: "uncordon for real",
|
|
node: cordoned_node,
|
|
expected: node,
|
|
cmd: NewCmdUncordon,
|
|
arg: "node",
|
|
expectFatal: false,
|
|
},
|
|
{
|
|
description: "uncordon does nothing",
|
|
node: node,
|
|
expected: node,
|
|
cmd: NewCmdUncordon,
|
|
arg: "node",
|
|
expectFatal: false,
|
|
},
|
|
{
|
|
description: "cordon does nothing",
|
|
node: cordoned_node,
|
|
expected: cordoned_node,
|
|
cmd: NewCmdCordon,
|
|
arg: "node",
|
|
expectFatal: false,
|
|
},
|
|
{
|
|
description: "cordon for real",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
cmd: NewCmdCordon,
|
|
arg: "node",
|
|
expectFatal: false,
|
|
},
|
|
{
|
|
description: "cordon missing node",
|
|
node: node,
|
|
expected: node,
|
|
cmd: NewCmdCordon,
|
|
arg: "bar",
|
|
expectFatal: true,
|
|
},
|
|
{
|
|
description: "uncordon missing node",
|
|
node: node,
|
|
expected: node,
|
|
cmd: NewCmdUncordon,
|
|
arg: "bar",
|
|
expectFatal: true,
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
f, tf, codec, ns := cmdtesting.NewAPIFactory()
|
|
new_node := &api.Node{}
|
|
updated := false
|
|
tf.Client = &fake.RESTClient{
|
|
NegotiatedSerializer: ns,
|
|
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
|
|
m := &MyReq{req}
|
|
switch {
|
|
case m.isFor("GET", "/nodes/node"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, test.node)}, nil
|
|
case m.isFor("GET", "/nodes/bar"):
|
|
return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: stringBody("nope")}, nil
|
|
case m.isFor("PUT", "/nodes/node"):
|
|
data, err := ioutil.ReadAll(req.Body)
|
|
if err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
defer req.Body.Close()
|
|
if err := runtime.DecodeInto(codec, data, new_node); err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
if !reflect.DeepEqual(test.expected.Spec, new_node.Spec) {
|
|
t.Fatalf("%s: expected:\n%v\nsaw:\n%v\n", test.description, test.expected.Spec, new_node.Spec)
|
|
}
|
|
updated = true
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, new_node)}, nil
|
|
default:
|
|
t.Fatalf("%s: unexpected request: %v %#v\n%#v", test.description, req.Method, req.URL, req)
|
|
return nil, nil
|
|
}
|
|
}),
|
|
}
|
|
tf.ClientConfig = defaultClientConfig()
|
|
|
|
buf := bytes.NewBuffer([]byte{})
|
|
cmd := test.cmd(f, buf)
|
|
|
|
saw_fatal := false
|
|
func() {
|
|
defer func() {
|
|
// Recover from the panic below.
|
|
_ = recover()
|
|
// Restore cmdutil behavior
|
|
cmdutil.DefaultBehaviorOnFatal()
|
|
}()
|
|
cmdutil.BehaviorOnFatal(func(e string, code int) {
|
|
saw_fatal = true
|
|
panic(e)
|
|
})
|
|
cmd.SetArgs([]string{test.arg})
|
|
cmd.Execute()
|
|
}()
|
|
|
|
if test.expectFatal {
|
|
if !saw_fatal {
|
|
t.Fatalf("%s: unexpected non-error", test.description)
|
|
}
|
|
if updated {
|
|
t.Fatalf("%s: unexpcted update", test.description)
|
|
}
|
|
}
|
|
|
|
if !test.expectFatal && saw_fatal {
|
|
t.Fatalf("%s: unexpected error", test.description)
|
|
}
|
|
if !reflect.DeepEqual(test.expected.Spec, test.node.Spec) && !updated {
|
|
t.Fatalf("%s: node never updated", test.description)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDrain(t *testing.T) {
|
|
labels := make(map[string]string)
|
|
labels["my_key"] = "my_value"
|
|
|
|
rc := api.ReplicationController{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "rc",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
SelfLink: testapi.Default.SelfLink("replicationcontrollers", "rc"),
|
|
},
|
|
Spec: api.ReplicationControllerSpec{
|
|
Selector: labels,
|
|
},
|
|
}
|
|
|
|
rc_anno := make(map[string]string)
|
|
rc_anno[api.CreatedByAnnotation] = refJson(t, &rc)
|
|
|
|
rc_pod := api.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
Annotations: rc_anno,
|
|
},
|
|
Spec: api.PodSpec{
|
|
NodeName: "node",
|
|
},
|
|
}
|
|
|
|
ds := extensions.DaemonSet{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "ds",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
SelfLink: "/apis/extensions/v1beta1/namespaces/default/daemonsets/ds",
|
|
},
|
|
Spec: extensions.DaemonSetSpec{
|
|
Selector: &metav1.LabelSelector{MatchLabels: labels},
|
|
},
|
|
}
|
|
|
|
ds_anno := make(map[string]string)
|
|
ds_anno[api.CreatedByAnnotation] = refJson(t, &ds)
|
|
|
|
ds_pod := api.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
Annotations: ds_anno,
|
|
},
|
|
Spec: api.PodSpec{
|
|
NodeName: "node",
|
|
},
|
|
}
|
|
|
|
job := batch.Job{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "job",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
SelfLink: "/apis/batch/v1/namespaces/default/jobs/job",
|
|
},
|
|
Spec: batch.JobSpec{
|
|
Selector: &metav1.LabelSelector{MatchLabels: labels},
|
|
},
|
|
}
|
|
|
|
job_pod := api.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
Annotations: map[string]string{api.CreatedByAnnotation: refJson(t, &job)},
|
|
},
|
|
}
|
|
|
|
rs := extensions.ReplicaSet{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "rs",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
SelfLink: testapi.Default.SelfLink("replicasets", "rs"),
|
|
},
|
|
Spec: extensions.ReplicaSetSpec{
|
|
Selector: &metav1.LabelSelector{MatchLabels: labels},
|
|
},
|
|
}
|
|
|
|
rs_anno := make(map[string]string)
|
|
rs_anno[api.CreatedByAnnotation] = refJson(t, &rs)
|
|
|
|
rs_pod := api.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
Annotations: rs_anno,
|
|
},
|
|
Spec: api.PodSpec{
|
|
NodeName: "node",
|
|
},
|
|
}
|
|
|
|
naked_pod := api.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
},
|
|
Spec: api.PodSpec{
|
|
NodeName: "node",
|
|
},
|
|
}
|
|
|
|
emptydir_pod := api.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "bar",
|
|
Namespace: "default",
|
|
CreationTimestamp: metav1.Time{Time: time.Now()},
|
|
Labels: labels,
|
|
},
|
|
Spec: api.PodSpec{
|
|
NodeName: "node",
|
|
Volumes: []api.Volume{
|
|
{
|
|
Name: "scratch",
|
|
VolumeSource: api.VolumeSource{EmptyDir: &api.EmptyDirVolumeSource{Medium: ""}},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
tests := []struct {
|
|
description string
|
|
node *api.Node
|
|
expected *api.Node
|
|
pods []api.Pod
|
|
rcs []api.ReplicationController
|
|
replicaSets []extensions.ReplicaSet
|
|
args []string
|
|
expectFatal bool
|
|
expectDelete bool
|
|
}{
|
|
{
|
|
description: "RC-managed pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{rc_pod},
|
|
rcs: []api.ReplicationController{rc},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "DS-managed pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{ds_pod},
|
|
rcs: []api.ReplicationController{rc},
|
|
args: []string{"node"},
|
|
expectFatal: true,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "DS-managed pod with --ignore-daemonsets",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{ds_pod},
|
|
rcs: []api.ReplicationController{rc},
|
|
args: []string{"node", "--ignore-daemonsets"},
|
|
expectFatal: false,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "Job-managed pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{job_pod},
|
|
rcs: []api.ReplicationController{rc},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "RS-managed pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{rs_pod},
|
|
replicaSets: []extensions.ReplicaSet{rs},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "naked pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{naked_pod},
|
|
rcs: []api.ReplicationController{},
|
|
args: []string{"node"},
|
|
expectFatal: true,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "naked pod with --force",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{naked_pod},
|
|
rcs: []api.ReplicationController{},
|
|
args: []string{"node", "--force"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "pod with EmptyDir",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{emptydir_pod},
|
|
args: []string{"node", "--force"},
|
|
expectFatal: true,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "pod with EmptyDir and --delete-local-data",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{emptydir_pod},
|
|
args: []string{"node", "--force", "--delete-local-data=true"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "empty node",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []api.Pod{},
|
|
rcs: []api.ReplicationController{rc},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: false,
|
|
},
|
|
}
|
|
|
|
testEviction := false
|
|
for i := 0; i < 2; i++ {
|
|
testEviction = !testEviction
|
|
var currMethod string
|
|
if testEviction {
|
|
currMethod = EvictionMethod
|
|
} else {
|
|
currMethod = DeleteMethod
|
|
}
|
|
for _, test := range tests {
|
|
new_node := &api.Node{}
|
|
deleted := false
|
|
evicted := false
|
|
f, tf, codec, ns := cmdtesting.NewAPIFactory()
|
|
tf.Client = &fake.RESTClient{
|
|
NegotiatedSerializer: ns,
|
|
Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
|
|
m := &MyReq{req}
|
|
switch {
|
|
case req.Method == "GET" && req.URL.Path == "/api":
|
|
apiVersions := metav1.APIVersions{
|
|
Versions: []string{"v1"},
|
|
}
|
|
return genResponseWithJsonEncodedBody(apiVersions)
|
|
case req.Method == "GET" && req.URL.Path == "/apis":
|
|
groupList := metav1.APIGroupList{
|
|
Groups: []metav1.APIGroup{
|
|
{
|
|
Name: "policy",
|
|
PreferredVersion: metav1.GroupVersionForDiscovery{
|
|
GroupVersion: "policy/v1beta1",
|
|
},
|
|
},
|
|
},
|
|
}
|
|
return genResponseWithJsonEncodedBody(groupList)
|
|
case req.Method == "GET" && req.URL.Path == "/api/v1":
|
|
resourceList := metav1.APIResourceList{
|
|
GroupVersion: "v1",
|
|
}
|
|
if testEviction {
|
|
resourceList.APIResources = []metav1.APIResource{
|
|
{
|
|
Name: EvictionSubresource,
|
|
Kind: EvictionKind,
|
|
},
|
|
}
|
|
}
|
|
return genResponseWithJsonEncodedBody(resourceList)
|
|
case m.isFor("GET", "/nodes/node"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, test.node)}, nil
|
|
case m.isFor("GET", "/namespaces/default/replicationcontrollers/rc"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &test.rcs[0])}, nil
|
|
case m.isFor("GET", "/namespaces/default/daemonsets/ds"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(testapi.Extensions.Codec(), &ds)}, nil
|
|
case m.isFor("GET", "/namespaces/default/jobs/job"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(testapi.Batch.Codec(), &job)}, nil
|
|
case m.isFor("GET", "/namespaces/default/replicasets/rs"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(testapi.Extensions.Codec(), &test.replicaSets[0])}, nil
|
|
case m.isFor("GET", "/namespaces/default/pods/bar"):
|
|
return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: objBody(codec, &api.Pod{})}, nil
|
|
case m.isFor("GET", "/pods"):
|
|
values, err := url.ParseQuery(req.URL.RawQuery)
|
|
if err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
get_params := make(url.Values)
|
|
get_params["fieldSelector"] = []string{"spec.nodeName=node"}
|
|
if !reflect.DeepEqual(get_params, values) {
|
|
t.Fatalf("%s: expected:\n%v\nsaw:\n%v\n", test.description, get_params, values)
|
|
}
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &api.PodList{Items: test.pods})}, nil
|
|
case m.isFor("GET", "/replicationcontrollers"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &api.ReplicationControllerList{Items: test.rcs})}, nil
|
|
case m.isFor("PUT", "/nodes/node"):
|
|
data, err := ioutil.ReadAll(req.Body)
|
|
if err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
defer req.Body.Close()
|
|
if err := runtime.DecodeInto(codec, data, new_node); err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
if !reflect.DeepEqual(test.expected.Spec, new_node.Spec) {
|
|
t.Fatalf("%s: expected:\n%v\nsaw:\n%v\n", test.description, test.expected.Spec, new_node.Spec)
|
|
}
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, new_node)}, nil
|
|
case m.isFor("DELETE", "/namespaces/default/pods/bar"):
|
|
deleted = true
|
|
return &http.Response{StatusCode: 204, Header: defaultHeader(), Body: objBody(codec, &test.pods[0])}, nil
|
|
case m.isFor("POST", "/namespaces/default/pods/bar/eviction"):
|
|
evicted = true
|
|
return &http.Response{StatusCode: 201, Header: defaultHeader(), Body: policyObjBody(&policy.Eviction{})}, nil
|
|
default:
|
|
t.Fatalf("%s: unexpected request: %v %#v\n%#v", test.description, req.Method, req.URL, req)
|
|
return nil, nil
|
|
}
|
|
}),
|
|
}
|
|
tf.ClientConfig = defaultClientConfig()
|
|
|
|
buf := bytes.NewBuffer([]byte{})
|
|
errBuf := bytes.NewBuffer([]byte{})
|
|
cmd := NewCmdDrain(f, buf, errBuf)
|
|
|
|
saw_fatal := false
|
|
func() {
|
|
defer func() {
|
|
// Recover from the panic below.
|
|
_ = recover()
|
|
// Restore cmdutil behavior
|
|
cmdutil.DefaultBehaviorOnFatal()
|
|
}()
|
|
cmdutil.BehaviorOnFatal(func(e string, code int) { saw_fatal = true; panic(e) })
|
|
cmd.SetArgs(test.args)
|
|
cmd.Execute()
|
|
}()
|
|
|
|
if test.expectFatal {
|
|
if !saw_fatal {
|
|
t.Fatalf("%s: unexpected non-error when using %s", test.description, currMethod)
|
|
}
|
|
}
|
|
|
|
if test.expectDelete {
|
|
// Test Delete
|
|
if !testEviction && !deleted {
|
|
t.Fatalf("%s: pod never deleted", test.description)
|
|
}
|
|
// Test Eviction
|
|
if testEviction && !evicted {
|
|
t.Fatalf("%s: pod never evicted", test.description)
|
|
}
|
|
}
|
|
if !test.expectDelete {
|
|
if deleted {
|
|
t.Fatalf("%s: unexpected delete when using %s", test.description, currMethod)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestDeletePods(t *testing.T) {
|
|
ifHasBeenCalled := map[string]bool{}
|
|
tests := []struct {
|
|
description string
|
|
interval time.Duration
|
|
timeout time.Duration
|
|
expectPendingPods bool
|
|
expectError bool
|
|
expectedError *error
|
|
getPodFn func(namespace, name string) (*api.Pod, error)
|
|
}{
|
|
{
|
|
description: "Wait for deleting to complete",
|
|
interval: 100 * time.Millisecond,
|
|
timeout: 10 * time.Second,
|
|
expectPendingPods: false,
|
|
expectError: false,
|
|
expectedError: nil,
|
|
getPodFn: func(namespace, name string) (*api.Pod, error) {
|
|
oldPodMap, _ := createPods(false)
|
|
newPodMap, _ := createPods(true)
|
|
if oldPod, found := oldPodMap[name]; found {
|
|
if _, ok := ifHasBeenCalled[name]; !ok {
|
|
ifHasBeenCalled[name] = true
|
|
return &oldPod, nil
|
|
}
|
|
if oldPod.ObjectMeta.Generation < 4 {
|
|
newPod := newPodMap[name]
|
|
return &newPod, nil
|
|
}
|
|
return nil, apierrors.NewNotFound(schema.GroupResource{Resource: "pods"}, name)
|
|
|
|
}
|
|
return nil, apierrors.NewNotFound(schema.GroupResource{Resource: "pods"}, name)
|
|
},
|
|
},
|
|
{
|
|
description: "Deleting could timeout",
|
|
interval: 200 * time.Millisecond,
|
|
timeout: 3 * time.Second,
|
|
expectPendingPods: true,
|
|
expectError: true,
|
|
expectedError: &wait.ErrWaitTimeout,
|
|
getPodFn: func(namespace, name string) (*api.Pod, error) {
|
|
oldPodMap, _ := createPods(false)
|
|
if oldPod, found := oldPodMap[name]; found {
|
|
return &oldPod, nil
|
|
}
|
|
return nil, fmt.Errorf("%q: not found", name)
|
|
},
|
|
},
|
|
{
|
|
description: "Client error could be passed out",
|
|
interval: 200 * time.Millisecond,
|
|
timeout: 5 * time.Second,
|
|
expectPendingPods: true,
|
|
expectError: true,
|
|
expectedError: nil,
|
|
getPodFn: func(namespace, name string) (*api.Pod, error) {
|
|
return nil, errors.New("This is a random error for testing")
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
f, _, _, _ := cmdtesting.NewAPIFactory()
|
|
o := DrainOptions{}
|
|
o.mapper, _ = f.Object()
|
|
o.out = os.Stdout
|
|
_, pods := createPods(false)
|
|
pendingPods, err := o.waitForDelete(pods, test.interval, test.timeout, false, test.getPodFn)
|
|
|
|
if test.expectError {
|
|
if err == nil {
|
|
t.Fatalf("%s: unexpected non-error", test.description)
|
|
} else if test.expectedError != nil {
|
|
if *test.expectedError != err {
|
|
t.Fatalf("%s: the error does not match expected error", test.description)
|
|
}
|
|
}
|
|
}
|
|
if !test.expectError && err != nil {
|
|
t.Fatalf("%s: unexpected error", test.description)
|
|
}
|
|
if test.expectPendingPods && len(pendingPods) == 0 {
|
|
t.Fatalf("%s: unexpected empty pods", test.description)
|
|
}
|
|
if !test.expectPendingPods && len(pendingPods) > 0 {
|
|
t.Fatalf("%s: unexpected pending pods", test.description)
|
|
}
|
|
}
|
|
}
|
|
|
|
func createPods(ifCreateNewPods bool) (map[string]api.Pod, []api.Pod) {
|
|
podMap := make(map[string]api.Pod)
|
|
podSlice := []api.Pod{}
|
|
for i := 0; i < 8; i++ {
|
|
var uid types.UID
|
|
if ifCreateNewPods {
|
|
uid = types.UID(i)
|
|
} else {
|
|
uid = types.UID(strconv.Itoa(i) + strconv.Itoa(i))
|
|
}
|
|
pod := api.Pod{
|
|
ObjectMeta: metav1.ObjectMeta{
|
|
Name: "pod" + strconv.Itoa(i),
|
|
Namespace: "default",
|
|
UID: uid,
|
|
Generation: int64(i),
|
|
},
|
|
}
|
|
podMap[pod.Name] = pod
|
|
podSlice = append(podSlice, pod)
|
|
}
|
|
return podMap, podSlice
|
|
}
|
|
|
|
type MyReq struct {
|
|
Request *http.Request
|
|
}
|
|
|
|
func (m *MyReq) isFor(method string, path string) bool {
|
|
req := m.Request
|
|
|
|
return method == req.Method && (req.URL.Path == path ||
|
|
req.URL.Path == strings.Join([]string{"/api/v1", path}, "") ||
|
|
req.URL.Path == strings.Join([]string{"/apis/extensions/v1beta1", path}, "") ||
|
|
req.URL.Path == strings.Join([]string{"/apis/batch/v1", path}, ""))
|
|
}
|
|
|
|
func refJson(t *testing.T, o runtime.Object) string {
|
|
ref, err := api.GetReference(o)
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
|
|
_, _, codec, _ := cmdtesting.NewAPIFactory()
|
|
json, err := runtime.Encode(codec, &api.SerializedReference{Reference: *ref})
|
|
if err != nil {
|
|
t.Fatalf("unexpected error: %v", err)
|
|
}
|
|
|
|
return string(json)
|
|
}
|