// Get takes the reference to scale subresource and returns the subresource or error, if one occurs.
func (c *scales) Get(kind string, name string) (result *v1beta1.Scale, err error) {
result = &v1beta1.Scale{}
// TODO this method needs to take a proper unambiguous kind
fullyQualifiedKind := unversioned.GroupVersionKind{Kind: kind}
resource, _ := meta.KindToResource(fullyQualifiedKind)
err = c.client.Get().
Namespace(c.ns).
Resource(resource.Resource).
Name(name).
SubResource("scale").
Do().
Into(result)
return
}
func (c *scales) Update(kind string, scale *extensions.Scale) (result *extensions.Scale, err error) {
result = &extensions.Scale{}
// TODO this method needs to take a proper unambiguous kind
fullyQualifiedKind := unversioned.GroupVersionKind{Kind: kind}
resource, _ := meta.KindToResource(fullyQualifiedKind)
err = c.client.Put().
Namespace(scale.Namespace).
Resource(resource.Resource).
Name(scale.Name).
SubResource("scale").
Body(scale).
Do().
Into(result)
return
}
func testInstallThirdPartyAPIListVersion(t *testing.T, version string) {
tests := []struct {
items []Foo
name string
test string
}{
{
name: "foo.company.com",
test: "null",
},
{
items: []Foo{},
name: "foo.company.com",
test: "empty",
},
{
items: []Foo{},
name: "policy.company.com",
test: "plurals",
},
{
items: []Foo{
{
ObjectMeta: api.ObjectMeta{
Name: "test",
},
TypeMeta: unversioned.TypeMeta{
Kind: "Foo",
APIVersion: version,
},
SomeField: "test field",
OtherField: 10,
},
{
ObjectMeta: api.ObjectMeta{
Name: "bar",
},
TypeMeta: unversioned.TypeMeta{
Kind: "Foo",
APIVersion: version,
},
SomeField: "test field another",
OtherField: 20,
},
},
name: "foo.company.com",
test: "real list",
},
}
for _, test := range tests {
func() {
master, etcdserver, server, assert := initThirdParty(t, version, test.name)
defer server.Close()
defer etcdserver.Terminate(t)
kind, group, err := thirdpartyresourcedata.ExtractApiGroupAndKind(
&extensions.ThirdPartyResource{ObjectMeta: api.ObjectMeta{Name: test.name}})
assert.NoError(err, test.test)
plural, _ := meta.KindToResource(unversioned.GroupVersionKind{
Group: group,
Version: version,
Kind: kind,
})
if test.items != nil {
err := createThirdPartyList(master.thirdPartyStorage,
fmt.Sprintf("/ThirdPartyResourceData/%s/%s/default", group, plural.Resource),
test.items)
if !assert.NoError(err, test.test) {
return
}
}
resp, err := http.Get(
fmt.Sprintf("%s/apis/%s/%s/namespaces/default/%s", server.URL, group, version, plural.Resource))
if !assert.NoError(err, test.test) {
return
}
defer resp.Body.Close()
assert.Equal(http.StatusOK, resp.StatusCode, test.test)
data, err := ioutil.ReadAll(resp.Body)
assert.NoError(err, test.test)
list := FooList{}
if err = json.Unmarshal(data, &list); err != nil {
assert.NoError(err, "unexpected error: %v %s", err, test.test)
}
if test.items == nil {
if len(list.Items) != 0 {
assert.NoError(err, "expected no items, saw: %v %s", err, list.Items, test.test)
}
return
}
if len(list.Items) != len(test.items) {
t.Fatalf("(%s) unexpected length: %d vs %d", test.name, len(list.Items), len(test.items))
}
// The order of elements in LIST is not guaranteed.
mapping := make(map[string]int)
for ix := range test.items {
mapping[test.items[ix].Name] = ix
}
for ix := range list.Items {
// Copy things that are set dynamically on the server
expectedObj := test.items[mapping[list.Items[ix].Name]]
expectedObj.SelfLink = list.Items[ix].SelfLink
expectedObj.ResourceVersion = list.Items[ix].ResourceVersion
expectedObj.Namespace = list.Items[ix].Namespace
expectedObj.UID = list.Items[ix].UID
expectedObj.CreationTimestamp = list.Items[ix].CreationTimestamp
// We endure the order of items by sorting them (using 'mapping')
// so that this function passes.
if !reflect.DeepEqual(list.Items[ix], expectedObj) {
t.Errorf("(%s) expected:\n%#v\nsaw:\n%#v\n", test.name, expectedObj, list.Items[ix])
}
}
}()
}
}
func RunRollingUpdate(f *cmdutil.Factory, out io.Writer, cmd *cobra.Command, args []string, options *RollingUpdateOptions) error {
if len(os.Args) > 1 && os.Args[1] == "rollingupdate" {
printDeprecationWarning("rolling-update", "rollingupdate")
}
err := validateArguments(cmd, options.Filenames, args)
if err != nil {
return err
}
deploymentKey := cmdutil.GetFlagString(cmd, "deployment-label-key")
filename := ""
image := cmdutil.GetFlagString(cmd, "image")
pullPolicy := cmdutil.GetFlagString(cmd, "image-pull-policy")
oldName := args[0]
rollback := cmdutil.GetFlagBool(cmd, "rollback")
period := cmdutil.GetFlagDuration(cmd, "update-period")
interval := cmdutil.GetFlagDuration(cmd, "poll-interval")
timeout := cmdutil.GetFlagDuration(cmd, "timeout")
dryrun := cmdutil.GetDryRunFlag(cmd)
outputFormat := cmdutil.GetFlagString(cmd, "output")
container := cmdutil.GetFlagString(cmd, "container")
if len(options.Filenames) > 0 {
filename = options.Filenames[0]
}
cmdNamespace, enforceNamespace, err := f.DefaultNamespace()
if err != nil {
return err
}
client, err := f.Client()
if err != nil {
return err
}
var newRc *api.ReplicationController
// fetch rc
oldRc, err := client.ReplicationControllers(cmdNamespace).Get(oldName)
if err != nil {
if !errors.IsNotFound(err) || len(image) == 0 || len(args) > 1 {
return err
}
// We're in the middle of a rename, look for an RC with a source annotation of oldName
newRc, err := kubectl.FindSourceController(client, cmdNamespace, oldName)
if err != nil {
return err
}
return kubectl.Rename(client, newRc, oldName)
}
var keepOldName bool
var replicasDefaulted bool
mapper, typer := f.Object(cmdutil.GetIncludeThirdPartyAPIs(cmd))
if len(filename) != 0 {
schema, err := f.Validator(cmdutil.GetFlagBool(cmd, "validate"), cmdutil.GetFlagString(cmd, "schema-cache-dir"))
if err != nil {
return err
}
request := resource.NewBuilder(mapper, typer, resource.ClientMapperFunc(f.ClientForMapping), f.Decoder(true)).
Schema(schema).
NamespaceParam(cmdNamespace).DefaultNamespace().
FilenameParam(enforceNamespace, false, filename).
Do()
obj, err := request.Object()
if err != nil {
return err
}
var ok bool
// Handle filename input from stdin. The resource builder always returns an api.List
// when creating resource(s) from a stream.
if list, ok := obj.(*api.List); ok {
if len(list.Items) > 1 {
return cmdutil.UsageError(cmd, "%s specifies multiple items", filename)
}
obj = list.Items[0]
}
newRc, ok = obj.(*api.ReplicationController)
if !ok {
if gvks, _, err := typer.ObjectKinds(obj); err == nil {
return cmdutil.UsageError(cmd, "%s contains a %v not a ReplicationController", filename, gvks[0])
}
glog.V(4).Infof("Object %#v is not a ReplicationController", obj)
return cmdutil.UsageError(cmd, "%s does not specify a valid ReplicationController", filename)
}
infos, err := request.Infos()
if err != nil || len(infos) != 1 {
glog.V(2).Infof("was not able to recover adequate information to discover if .spec.replicas was defaulted")
} else {
replicasDefaulted = isReplicasDefaulted(infos[0])
}
}
// If the --image option is specified, we need to create a new rc with at least one different selector
// than the old rc. This selector is the hash of the rc, with a suffix to provide uniqueness for
// same-image updates.
if len(image) != 0 {
codec := api.Codecs.LegacyCodec(client.APIVersion())
keepOldName = len(args) == 1
newName := findNewName(args, oldRc)
if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
return err
}
if newRc != nil {
if inProgressImage := newRc.Spec.Template.Spec.Containers[0].Image; inProgressImage != image {
return cmdutil.UsageError(cmd, "Found existing in-progress update to image (%s).\nEither continue in-progress update with --image=%s or rollback with --rollback", inProgressImage, inProgressImage)
}
fmt.Fprintf(out, "Found existing update in progress (%s), resuming.\n", newRc.Name)
} else {
config := &kubectl.NewControllerConfig{
Namespace: cmdNamespace,
OldName: oldName,
NewName: newName,
Image: image,
Container: container,
DeploymentKey: deploymentKey,
}
if oldRc.Spec.Template.Spec.Containers[0].Image == image {
if len(pullPolicy) == 0 {
return cmdutil.UsageError(cmd, "--image-pull-policy (Always|Never|IfNotPresent) must be provided when --image is the same as existing container image")
}
config.PullPolicy = api.PullPolicy(pullPolicy)
}
newRc, err = kubectl.CreateNewControllerFromCurrentController(client, codec, config)
if err != nil {
return err
}
}
// Update the existing replication controller with pointers to the 'next' controller
// and adding the <deploymentKey> label if necessary to distinguish it from the 'next' controller.
oldHash, err := api.HashObject(oldRc, codec)
if err != nil {
return err
}
// If new image is same as old, the hash may not be distinct, so add a suffix.
oldHash += "-orig"
oldRc, err = kubectl.UpdateExistingReplicationController(client, oldRc, cmdNamespace, newRc.Name, deploymentKey, oldHash, out)
if err != nil {
return err
}
}
if rollback {
keepOldName = len(args) == 1
newName := findNewName(args, oldRc)
if newRc, err = kubectl.LoadExistingNextReplicationController(client, cmdNamespace, newName); err != nil {
return err
}
if newRc == nil {
return cmdutil.UsageError(cmd, "Could not find %s to rollback.\n", newName)
}
}
if oldName == newRc.Name {
return cmdutil.UsageError(cmd, "%s cannot have the same name as the existing ReplicationController %s",
filename, oldName)
}
updater := kubectl.NewRollingUpdater(newRc.Namespace, client)
// To successfully pull off a rolling update the new and old rc have to differ
// by at least one selector. Every new pod should have the selector and every
// old pod should not have the selector.
var hasLabel bool
for key, oldValue := range oldRc.Spec.Selector {
if newValue, ok := newRc.Spec.Selector[key]; ok && newValue != oldValue {
hasLabel = true
break
}
}
if !hasLabel {
return cmdutil.UsageError(cmd, "%s must specify a matching key with non-equal value in Selector for %s",
filename, oldName)
}
// TODO: handle scales during rolling update
if replicasDefaulted {
newRc.Spec.Replicas = oldRc.Spec.Replicas
}
if dryrun {
oldRcData := &bytes.Buffer{}
newRcData := &bytes.Buffer{}
if outputFormat == "" {
oldRcData.WriteString(oldRc.Name)
newRcData.WriteString(newRc.Name)
} else {
if err := f.PrintObject(cmd, mapper, oldRc, oldRcData); err != nil {
return err
}
if err := f.PrintObject(cmd, mapper, newRc, newRcData); err != nil {
return err
}
}
fmt.Fprintf(out, "Rolling from:\n%s\nTo:\n%s\n", string(oldRcData.Bytes()), string(newRcData.Bytes()))
return nil
}
updateCleanupPolicy := kubectl.DeleteRollingUpdateCleanupPolicy
if keepOldName {
updateCleanupPolicy = kubectl.RenameRollingUpdateCleanupPolicy
}
config := &kubectl.RollingUpdaterConfig{
Out: out,
OldRc: oldRc,
NewRc: newRc,
UpdatePeriod: period,
Interval: interval,
Timeout: timeout,
CleanupPolicy: updateCleanupPolicy,
MaxUnavailable: intstr.FromInt(0),
MaxSurge: intstr.FromInt(1),
}
if rollback {
err = kubectl.AbortRollingUpdate(config)
if err != nil {
return err
}
client.ReplicationControllers(config.NewRc.Namespace).Update(config.NewRc)
}
err = updater.Update(config)
if err != nil {
return err
}
message := "rolling updated"
if keepOldName {
newRc.Name = oldName
} else {
message = fmt.Sprintf("rolling updated to %q", newRc.Name)
}
newRc, err = client.ReplicationControllers(cmdNamespace).Get(newRc.Name)
if err != nil {
return err
}
if outputFormat != "" {
return f.PrintObject(cmd, mapper, newRc, out)
}
kinds, _, err := api.Scheme.ObjectKinds(newRc)
if err != nil {
return err
}
_, res := meta.KindToResource(kinds[0])
cmdutil.PrintSuccess(mapper, false, out, res.Resource, oldName, message)
return nil
}
