mirror of
https://github.com/optim-enterprises-bv/kubernetes.git
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1008 lines
29 KiB
Go
1008 lines
29 KiB
Go
/*
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Copyright 2015 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package cmd
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import (
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"errors"
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"fmt"
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"io"
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"io/ioutil"
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"net/http"
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"net/url"
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"os"
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"reflect"
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"strconv"
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"strings"
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"testing"
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"time"
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"github.com/spf13/cobra"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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batchv1 "k8s.io/api/batch/v1"
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corev1 "k8s.io/api/core/v1"
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extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
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policyv1beta1 "k8s.io/api/policy/v1beta1"
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apierrors "k8s.io/apimachinery/pkg/api/errors"
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metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
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"k8s.io/apimachinery/pkg/runtime"
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"k8s.io/apimachinery/pkg/runtime/schema"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/apimachinery/pkg/util/strategicpatch"
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"k8s.io/apimachinery/pkg/util/wait"
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"k8s.io/cli-runtime/pkg/genericclioptions/printers"
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"k8s.io/client-go/rest/fake"
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cmdtesting "k8s.io/kubernetes/pkg/kubectl/cmd/testing"
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cmdutil "k8s.io/kubernetes/pkg/kubectl/cmd/util"
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"k8s.io/kubernetes/pkg/kubectl/scheme"
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)
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const (
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EvictionMethod = "Eviction"
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DeleteMethod = "Delete"
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)
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var node *corev1.Node
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var cordoned_node *corev1.Node
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func boolptr(b bool) *bool { return &b }
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func TestMain(m *testing.M) {
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// Create a node.
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node = &corev1.Node{
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ObjectMeta: metav1.ObjectMeta{
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Name: "node",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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},
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Status: corev1.NodeStatus{},
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}
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// A copy of the same node, but cordoned.
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cordoned_node = node.DeepCopy()
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cordoned_node.Spec.Unschedulable = true
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os.Exit(m.Run())
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}
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func TestCordon(t *testing.T) {
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tests := []struct {
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description string
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node *corev1.Node
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expected *corev1.Node
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cmd func(cmdutil.Factory, genericclioptions.IOStreams) *cobra.Command
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arg string
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expectFatal bool
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}{
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{
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description: "node/node syntax",
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node: cordoned_node,
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expected: node,
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cmd: NewCmdUncordon,
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arg: "node/node",
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expectFatal: false,
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},
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{
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description: "uncordon for real",
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node: cordoned_node,
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expected: node,
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cmd: NewCmdUncordon,
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arg: "node",
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expectFatal: false,
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},
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{
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description: "uncordon does nothing",
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node: node,
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expected: node,
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cmd: NewCmdUncordon,
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arg: "node",
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expectFatal: false,
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},
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{
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description: "cordon does nothing",
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node: cordoned_node,
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expected: cordoned_node,
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cmd: NewCmdCordon,
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arg: "node",
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expectFatal: false,
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},
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{
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description: "cordon for real",
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node: node,
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expected: cordoned_node,
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cmd: NewCmdCordon,
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arg: "node",
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expectFatal: false,
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},
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{
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description: "cordon missing node",
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node: node,
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expected: node,
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cmd: NewCmdCordon,
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arg: "bar",
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expectFatal: true,
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},
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{
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description: "uncordon missing node",
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node: node,
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expected: node,
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cmd: NewCmdUncordon,
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arg: "bar",
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expectFatal: true,
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},
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}
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for _, test := range tests {
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t.Run(test.description, func(t *testing.T) {
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tf := cmdtesting.NewTestFactory()
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defer tf.Cleanup()
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codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
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ns := scheme.Codecs
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new_node := &corev1.Node{}
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updated := false
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tf.Client = &fake.RESTClient{
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GroupVersion: schema.GroupVersion{Group: "", Version: "v1"},
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NegotiatedSerializer: ns,
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Client: fake.CreateHTTPClient(func(req *http.Request) (*http.Response, error) {
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m := &MyReq{req}
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switch {
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case m.isFor("GET", "/nodes/node"):
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, test.node)}, nil
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case m.isFor("GET", "/nodes/bar"):
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return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: stringBody("nope")}, nil
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case m.isFor("PATCH", "/nodes/node"):
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data, err := ioutil.ReadAll(req.Body)
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if err != nil {
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t.Fatalf("%s: unexpected error: %v", test.description, err)
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}
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defer req.Body.Close()
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oldJSON, err := runtime.Encode(codec, node)
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if err != nil {
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t.Fatalf("%s: unexpected error: %v", test.description, err)
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}
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appliedPatch, err := strategicpatch.StrategicMergePatch(oldJSON, data, &corev1.Node{})
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if err != nil {
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t.Fatalf("%s: unexpected error: %v", test.description, err)
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}
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if err := runtime.DecodeInto(codec, appliedPatch, new_node); err != nil {
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t.Fatalf("%s: unexpected error: %v", test.description, err)
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}
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if !reflect.DeepEqual(test.expected.Spec, new_node.Spec) {
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t.Fatalf("%s: expected:\n%v\nsaw:\n%v\n", test.description, test.expected.Spec.Unschedulable, new_node.Spec.Unschedulable)
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}
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updated = true
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return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, new_node)}, nil
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default:
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t.Fatalf("%s: unexpected request: %v %#v\n%#v", test.description, req.Method, req.URL, req)
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return nil, nil
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}
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}),
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}
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tf.ClientConfigVal = defaultClientConfig()
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ioStreams, _, _, _ := genericclioptions.NewTestIOStreams()
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cmd := test.cmd(tf, ioStreams)
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saw_fatal := false
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func() {
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defer func() {
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// Recover from the panic below.
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_ = recover()
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// Restore cmdutil behavior
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cmdutil.DefaultBehaviorOnFatal()
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}()
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cmdutil.BehaviorOnFatal(func(e string, code int) {
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saw_fatal = true
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panic(e)
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})
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cmd.SetArgs([]string{test.arg})
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cmd.Execute()
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}()
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if test.expectFatal {
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if !saw_fatal {
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t.Fatalf("%s: unexpected non-error", test.description)
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}
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if updated {
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t.Fatalf("%s: unexpected update", test.description)
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}
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}
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if !test.expectFatal && saw_fatal {
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t.Fatalf("%s: unexpected error", test.description)
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}
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if !reflect.DeepEqual(test.expected.Spec, test.node.Spec) && !updated {
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t.Fatalf("%s: node never updated", test.description)
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}
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})
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}
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}
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func TestDrain(t *testing.T) {
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labels := make(map[string]string)
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labels["my_key"] = "my_value"
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rc := corev1.ReplicationController{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rc",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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},
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Spec: corev1.ReplicationControllerSpec{
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Selector: labels,
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},
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}
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rc_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: "v1",
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Kind: "ReplicationController",
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Name: "rc",
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UID: "123",
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BlockOwnerDeletion: boolptr(true),
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Controller: boolptr(true),
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},
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},
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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},
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}
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ds := extensionsv1beta1.DaemonSet{
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ObjectMeta: metav1.ObjectMeta{
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Name: "ds",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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},
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Spec: extensionsv1beta1.DaemonSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: labels},
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},
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}
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ds_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: "extensions/v1beta1",
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Kind: "DaemonSet",
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Name: "ds",
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BlockOwnerDeletion: boolptr(true),
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Controller: boolptr(true),
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},
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},
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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},
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}
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ds_terminated_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: "extensions/v1beta1",
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Kind: "DaemonSet",
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Name: "ds",
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BlockOwnerDeletion: boolptr(true),
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Controller: boolptr(true),
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},
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},
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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},
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Status: corev1.PodStatus{
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Phase: corev1.PodSucceeded,
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},
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}
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ds_pod_with_emptyDir := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: "extensions/v1beta1",
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Kind: "DaemonSet",
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Name: "ds",
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BlockOwnerDeletion: boolptr(true),
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Controller: boolptr(true),
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},
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},
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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Volumes: []corev1.Volume{
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{
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Name: "scratch",
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VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{Medium: ""}},
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},
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},
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},
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}
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orphaned_ds_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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},
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}
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job := batchv1.Job{
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ObjectMeta: metav1.ObjectMeta{
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Name: "job",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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},
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Spec: batchv1.JobSpec{
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Selector: &metav1.LabelSelector{MatchLabels: labels},
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},
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}
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job_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: "v1",
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Kind: "Job",
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Name: "job",
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BlockOwnerDeletion: boolptr(true),
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Controller: boolptr(true),
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},
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},
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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Volumes: []corev1.Volume{
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{
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Name: "scratch",
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VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{Medium: ""}},
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},
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},
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},
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}
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terminated_job_pod_with_local_storage := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: "v1",
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Kind: "Job",
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Name: "job",
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BlockOwnerDeletion: boolptr(true),
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Controller: boolptr(true),
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},
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},
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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Volumes: []corev1.Volume{
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{
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Name: "scratch",
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VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{Medium: ""}},
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},
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},
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},
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Status: corev1.PodStatus{
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Phase: corev1.PodSucceeded,
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},
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}
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rs := extensionsv1beta1.ReplicaSet{
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ObjectMeta: metav1.ObjectMeta{
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Name: "rs",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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},
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Spec: extensionsv1beta1.ReplicaSetSpec{
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Selector: &metav1.LabelSelector{MatchLabels: labels},
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},
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}
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rs_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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OwnerReferences: []metav1.OwnerReference{
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{
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APIVersion: "v1",
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Kind: "ReplicaSet",
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Name: "rs",
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BlockOwnerDeletion: boolptr(true),
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Controller: boolptr(true),
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},
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},
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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},
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}
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naked_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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},
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}
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emptydir_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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Volumes: []corev1.Volume{
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{
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Name: "scratch",
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VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{Medium: ""}},
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},
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},
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},
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}
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emptydir_terminated_pod := corev1.Pod{
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ObjectMeta: metav1.ObjectMeta{
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Name: "bar",
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Namespace: "default",
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CreationTimestamp: metav1.Time{Time: time.Now()},
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Labels: labels,
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},
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Spec: corev1.PodSpec{
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NodeName: "node",
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Volumes: []corev1.Volume{
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{
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Name: "scratch",
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VolumeSource: corev1.VolumeSource{EmptyDir: &corev1.EmptyDirVolumeSource{Medium: ""}},
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},
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},
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},
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Status: corev1.PodStatus{
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Phase: corev1.PodFailed,
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},
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}
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|
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tests := []struct {
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description string
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node *corev1.Node
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expected *corev1.Node
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pods []corev1.Pod
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rcs []corev1.ReplicationController
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replicaSets []extensionsv1beta1.ReplicaSet
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args []string
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expectWarning string
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expectFatal bool
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expectDelete bool
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}{
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{
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description: "RC-managed pod",
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node: node,
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expected: cordoned_node,
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pods: []corev1.Pod{rc_pod},
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rcs: []corev1.ReplicationController{rc},
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args: []string{"node"},
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expectFatal: false,
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expectDelete: true,
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},
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{
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description: "DS-managed pod",
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node: node,
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expected: cordoned_node,
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pods: []corev1.Pod{ds_pod},
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rcs: []corev1.ReplicationController{rc},
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args: []string{"node"},
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expectFatal: true,
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expectDelete: false,
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},
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{
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|
description: "DS-managed terminated pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{ds_terminated_pod},
|
|
rcs: []corev1.ReplicationController{rc},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "orphaned DS-managed pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{orphaned_ds_pod},
|
|
rcs: []corev1.ReplicationController{},
|
|
args: []string{"node"},
|
|
expectFatal: true,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "orphaned DS-managed pod with --force",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{orphaned_ds_pod},
|
|
rcs: []corev1.ReplicationController{},
|
|
args: []string{"node", "--force"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "DS-managed pod with --ignore-daemonsets",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{ds_pod},
|
|
rcs: []corev1.ReplicationController{rc},
|
|
args: []string{"node", "--ignore-daemonsets"},
|
|
expectFatal: false,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "DS-managed pod with emptyDir with --ignore-daemonsets",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{ds_pod_with_emptyDir},
|
|
rcs: []corev1.ReplicationController{rc},
|
|
args: []string{"node", "--ignore-daemonsets"},
|
|
expectWarning: "WARNING: Ignoring DaemonSet-managed pods: bar\n",
|
|
expectFatal: false,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "Job-managed pod with local storage",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{job_pod},
|
|
rcs: []corev1.ReplicationController{rc},
|
|
args: []string{"node", "--force", "--delete-local-data=true"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "Job-managed terminated pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{terminated_job_pod_with_local_storage},
|
|
rcs: []corev1.ReplicationController{rc},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "RS-managed pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{rs_pod},
|
|
replicaSets: []extensionsv1beta1.ReplicaSet{rs},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "naked pod",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{naked_pod},
|
|
rcs: []corev1.ReplicationController{},
|
|
args: []string{"node"},
|
|
expectFatal: true,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "naked pod with --force",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{naked_pod},
|
|
rcs: []corev1.ReplicationController{},
|
|
args: []string{"node", "--force"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "pod with EmptyDir",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{emptydir_pod},
|
|
args: []string{"node", "--force"},
|
|
expectFatal: true,
|
|
expectDelete: false,
|
|
},
|
|
{
|
|
description: "terminated pod with emptyDir",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{emptydir_terminated_pod},
|
|
rcs: []corev1.ReplicationController{rc},
|
|
args: []string{"node"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "pod with EmptyDir and --delete-local-data",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{emptydir_pod},
|
|
args: []string{"node", "--force", "--delete-local-data=true"},
|
|
expectFatal: false,
|
|
expectDelete: true,
|
|
},
|
|
{
|
|
description: "empty node",
|
|
node: node,
|
|
expected: cordoned_node,
|
|
pods: []corev1.Pod{},
|
|
rcs: []corev1.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 {
|
|
t.Run(test.description, func(t *testing.T) {
|
|
new_node := &corev1.Node{}
|
|
deleted := false
|
|
evicted := false
|
|
tf := cmdtesting.NewTestFactory()
|
|
defer tf.Cleanup()
|
|
|
|
codec := scheme.Codecs.LegacyCodec(scheme.Scheme.PrioritizedVersionsAllGroups()...)
|
|
ns := scheme.Codecs
|
|
|
|
tf.Client = &fake.RESTClient{
|
|
GroupVersion: schema.GroupVersion{Group: "", Version: "v1"},
|
|
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(codec, &ds)}, nil
|
|
case m.isFor("GET", "/namespaces/default/daemonsets/missing-ds"):
|
|
return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: objBody(codec, &extensionsv1beta1.DaemonSet{})}, nil
|
|
case m.isFor("GET", "/namespaces/default/jobs/job"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &job)}, nil
|
|
case m.isFor("GET", "/namespaces/default/replicasets/rs"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &test.replicaSets[0])}, nil
|
|
case m.isFor("GET", "/namespaces/default/pods/bar"):
|
|
return &http.Response{StatusCode: 404, Header: defaultHeader(), Body: objBody(codec, &corev1.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, &corev1.PodList{Items: test.pods})}, nil
|
|
case m.isFor("GET", "/replicationcontrollers"):
|
|
return &http.Response{StatusCode: 200, Header: defaultHeader(), Body: objBody(codec, &corev1.ReplicationControllerList{Items: test.rcs})}, nil
|
|
case m.isFor("PATCH", "/nodes/node"):
|
|
data, err := ioutil.ReadAll(req.Body)
|
|
if err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
defer req.Body.Close()
|
|
oldJSON, err := runtime.Encode(codec, node)
|
|
if err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
appliedPatch, err := strategicpatch.StrategicMergePatch(oldJSON, data, &corev1.Node{})
|
|
if err != nil {
|
|
t.Fatalf("%s: unexpected error: %v", test.description, err)
|
|
}
|
|
if err := runtime.DecodeInto(codec, appliedPatch, 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: objBody(codec, &policyv1beta1.Eviction{})}, nil
|
|
default:
|
|
t.Fatalf("%s: unexpected request: %v %#v\n%#v", test.description, req.Method, req.URL, req)
|
|
return nil, nil
|
|
}
|
|
}),
|
|
}
|
|
tf.ClientConfigVal = defaultClientConfig()
|
|
|
|
ioStreams, _, _, errBuf := genericclioptions.NewTestIOStreams()
|
|
cmd := NewCmdDrain(tf, ioStreams)
|
|
|
|
saw_fatal := false
|
|
fatal_msg := ""
|
|
func() {
|
|
defer func() {
|
|
// Recover from the panic below.
|
|
_ = recover()
|
|
// Restore cmdutil behavior
|
|
cmdutil.DefaultBehaviorOnFatal()
|
|
}()
|
|
cmdutil.BehaviorOnFatal(func(e string, code int) { saw_fatal = true; fatal_msg = e; 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)
|
|
}
|
|
} else {
|
|
if saw_fatal {
|
|
t.Fatalf("%s: unexpected error when using %s: %s", test.description, currMethod, fatal_msg)
|
|
|
|
}
|
|
}
|
|
|
|
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)
|
|
}
|
|
}
|
|
|
|
if len(test.expectWarning) > 0 {
|
|
if len(errBuf.String()) == 0 {
|
|
t.Fatalf("%s: expected warning, but found no stderr output", test.description)
|
|
}
|
|
|
|
if errBuf.String() != test.expectWarning {
|
|
t.Fatalf("%s: actual warning message did not match expected warning message.\n Expecting: %s\n Got: %s", test.description, test.expectWarning, errBuf.String())
|
|
}
|
|
}
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
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) (*corev1.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) (*corev1.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) (*corev1.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) (*corev1.Pod, error) {
|
|
return nil, errors.New("This is a random error for testing")
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.description, func(t *testing.T) {
|
|
tf := cmdtesting.NewTestFactory()
|
|
defer tf.Cleanup()
|
|
|
|
o := DrainOptions{
|
|
PrintFlags: genericclioptions.NewPrintFlags("drained").WithTypeSetter(scheme.Scheme),
|
|
}
|
|
o.Out = os.Stdout
|
|
|
|
o.ToPrinter = func(operation string) (printers.ResourcePrinterFunc, error) {
|
|
return func(obj runtime.Object, out io.Writer) error {
|
|
return nil
|
|
}, nil
|
|
}
|
|
|
|
_, 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]corev1.Pod, []corev1.Pod) {
|
|
podMap := make(map[string]corev1.Pod)
|
|
podSlice := []corev1.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 := corev1.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}, ""))
|
|
}
|