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*: initial update to kube 1.8

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Signed-off-by: Antonio Murdaca <runcom@redhat.com>
This commit is contained in:
Antonio Murdaca 2017-09-26 16:23:09 +02:00
parent 2453222695
commit d6e819133d
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GPG key ID: B2BEAD150DE936B9
1237 changed files with 84117 additions and 564982 deletions
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227
vendor/k8s.io/client-go/rest/request.go generated vendored
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@ -33,27 +33,20 @@ import (
"time"
"github.com/golang/glog"
"golang.org/x/net/http2"
"k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apimachinery/pkg/runtime/serializer/streaming"
"k8s.io/apimachinery/pkg/util/net"
"k8s.io/apimachinery/pkg/util/sets"
"k8s.io/apimachinery/pkg/watch"
"k8s.io/client-go/pkg/api/v1"
restclientwatch "k8s.io/client-go/rest/watch"
"k8s.io/client-go/tools/metrics"
"k8s.io/client-go/util/flowcontrol"
)
var (
// specialParams lists parameters that are handled specially and which users of Request
// are therefore not allowed to set manually.
specialParams = sets.NewString("timeout")
// longThrottleLatency defines threshold for logging requests. All requests being
// throttle for more than longThrottleLatency will be logged.
longThrottleLatency = 50 * time.Millisecond
@ -269,7 +262,7 @@ func (r *Request) AbsPath(segments ...string) *Request {
}
// RequestURI overwrites existing path and parameters with the value of the provided server relative
// URI. Some parameters (those in specialParameters) cannot be overwritten.
// URI.
func (r *Request) RequestURI(uri string) *Request {
if r.err != nil {
return r
@ -291,143 +284,6 @@ func (r *Request) RequestURI(uri string) *Request {
return r
}
const (
// A constant that clients can use to refer in a field selector to the object name field.
// Will be automatically emitted as the correct name for the API version.
nodeUnschedulable = "spec.unschedulable"
objectNameField = "metadata.name"
podHost = "spec.nodeName"
podStatus = "status.phase"
secretType = "type"
eventReason = "reason"
eventSource = "source"
eventType = "type"
eventInvolvedKind = "involvedObject.kind"
eventInvolvedNamespace = "involvedObject.namespace"
eventInvolvedName = "involvedObject.name"
eventInvolvedUID = "involvedObject.uid"
eventInvolvedAPIVersion = "involvedObject.apiVersion"
eventInvolvedResourceVersion = "involvedObject.resourceVersion"
eventInvolvedFieldPath = "involvedObject.fieldPath"
)
type clientFieldNameToAPIVersionFieldName map[string]string
func (c clientFieldNameToAPIVersionFieldName) filterField(field, value string) (newField, newValue string, err error) {
newFieldName, ok := c[field]
if !ok {
return "", "", fmt.Errorf("%v - %v - no field mapping defined", field, value)
}
return newFieldName, value, nil
}
type resourceTypeToFieldMapping map[string]clientFieldNameToAPIVersionFieldName
func (r resourceTypeToFieldMapping) filterField(resourceType, field, value string) (newField, newValue string, err error) {
fMapping, ok := r[resourceType]
if !ok {
return "", "", fmt.Errorf("%v - %v - %v - no field mapping defined", resourceType, field, value)
}
return fMapping.filterField(field, value)
}
type versionToResourceToFieldMapping map[schema.GroupVersion]resourceTypeToFieldMapping
// filterField transforms the given field/value selector for the given groupVersion and resource
func (v versionToResourceToFieldMapping) filterField(groupVersion *schema.GroupVersion, resourceType, field, value string) (newField, newValue string, err error) {
rMapping, ok := v[*groupVersion]
if !ok {
// no groupVersion overrides registered, default to identity mapping
return field, value, nil
}
newField, newValue, err = rMapping.filterField(resourceType, field, value)
if err != nil {
// no groupVersionResource overrides registered, default to identity mapping
return field, value, nil
}
return newField, newValue, nil
}
var fieldMappings = versionToResourceToFieldMapping{
v1.SchemeGroupVersion: resourceTypeToFieldMapping{
"nodes": clientFieldNameToAPIVersionFieldName{
objectNameField: objectNameField,
nodeUnschedulable: nodeUnschedulable,
},
"pods": clientFieldNameToAPIVersionFieldName{
objectNameField: objectNameField,
podHost: podHost,
podStatus: podStatus,
},
"secrets": clientFieldNameToAPIVersionFieldName{
secretType: secretType,
},
"serviceAccounts": clientFieldNameToAPIVersionFieldName{
objectNameField: objectNameField,
},
"endpoints": clientFieldNameToAPIVersionFieldName{
objectNameField: objectNameField,
},
"events": clientFieldNameToAPIVersionFieldName{
objectNameField: objectNameField,
eventReason: eventReason,
eventSource: eventSource,
eventType: eventType,
eventInvolvedKind: eventInvolvedKind,
eventInvolvedNamespace: eventInvolvedNamespace,
eventInvolvedName: eventInvolvedName,
eventInvolvedUID: eventInvolvedUID,
eventInvolvedAPIVersion: eventInvolvedAPIVersion,
eventInvolvedResourceVersion: eventInvolvedResourceVersion,
eventInvolvedFieldPath: eventInvolvedFieldPath,
},
},
}
// FieldsSelectorParam adds the given selector as a query parameter with the name paramName.
func (r *Request) FieldsSelectorParam(s fields.Selector) *Request {
if r.err != nil {
return r
}
if s == nil {
return r
}
if s.Empty() {
return r
}
s2, err := s.Transform(func(field, value string) (newField, newValue string, err error) {
return fieldMappings.filterField(r.content.GroupVersion, r.resource, field, value)
})
if err != nil {
r.err = err
return r
}
return r.setParam(metav1.FieldSelectorQueryParam(r.content.GroupVersion.String()), s2.String())
}
// LabelsSelectorParam adds the given selector as a query parameter
func (r *Request) LabelsSelectorParam(s labels.Selector) *Request {
if r.err != nil {
return r
}
if s == nil {
return r
}
if s.Empty() {
return r
}
return r.setParam(metav1.LabelSelectorQueryParam(r.content.GroupVersion.String()), s.String())
}
// UintParam creates a query parameter with the given value.
func (r *Request) UintParam(paramName string, u uint64) *Request {
if r.err != nil {
return r
}
return r.setParam(paramName, strconv.FormatUint(u, 10))
}
// Param creates a query parameter with the given string value.
func (r *Request) Param(paramName, s string) *Request {
if r.err != nil {
@ -439,6 +295,8 @@ func (r *Request) Param(paramName, s string) *Request {
// VersionedParams will take the provided object, serialize it to a map[string][]string using the
// implicit RESTClient API version and the default parameter codec, and then add those as parameters
// to the request. Use this to provide versioned query parameters from client libraries.
// VersionedParams will not write query parameters that have omitempty set and are empty. If a
// parameter has already been set it is appended to (Params and VersionedParams are additive).
func (r *Request) VersionedParams(obj runtime.Object, codec runtime.ParameterCodec) *Request {
if r.err != nil {
return r
@ -449,52 +307,15 @@ func (r *Request) VersionedParams(obj runtime.Object, codec runtime.ParameterCod
return r
}
for k, v := range params {
for _, value := range v {
// TODO: Move it to setParam method, once we get rid of
// FieldSelectorParam & LabelSelectorParam methods.
if k == metav1.LabelSelectorQueryParam(r.content.GroupVersion.String()) && value == "" {
// Don't set an empty selector for backward compatibility.
// Since there is no way to get the difference between empty
// and unspecified string, we don't set it to avoid having
// labelSelector= param in every request.
continue
}
if k == metav1.FieldSelectorQueryParam(r.content.GroupVersion.String()) {
if len(value) == 0 {
// Don't set an empty selector for backward compatibility.
// Since there is no way to get the difference between empty
// and unspecified string, we don't set it to avoid having
// fieldSelector= param in every request.
continue
}
// TODO: Filtering should be handled somewhere else.
selector, err := fields.ParseSelector(value)
if err != nil {
r.err = fmt.Errorf("unparsable field selector: %v", err)
return r
}
filteredSelector, err := selector.Transform(
func(field, value string) (newField, newValue string, err error) {
return fieldMappings.filterField(r.content.GroupVersion, r.resource, field, value)
})
if err != nil {
r.err = fmt.Errorf("untransformable field selector: %v", err)
return r
}
value = filteredSelector.String()
}
r.setParam(k, value)
if r.params == nil {
r.params = make(url.Values)
}
r.params[k] = append(r.params[k], v...)
}
return r
}
func (r *Request) setParam(paramName, value string) *Request {
if specialParams.Has(paramName) {
r.err = fmt.Errorf("must set %v through the corresponding function, not directly.", paramName)
return r
}
if r.params == nil {
r.params = make(url.Values)
}
@ -502,11 +323,14 @@ func (r *Request) setParam(paramName, value string) *Request {
return r
}
func (r *Request) SetHeader(key, value string) *Request {
func (r *Request) SetHeader(key string, values ...string) *Request {
if r.headers == nil {
r.headers = http.Header{}
}
r.headers.Set(key, value)
r.headers.Del(key)
for _, value := range values {
r.headers.Add(key, value)
}
return r
}
@ -609,7 +433,7 @@ func (r *Request) URL() *url.URL {
// finalURLTemplate is similar to URL(), but will make all specific parameter values equal
// - instead of name or namespace, "{name}" and "{namespace}" will be used, and all query
// parameters will be reset. This creates a copy of the request so as not to change the
// underyling object. This means some useful request info (like the types of field
// underlying object. This means some useful request info (like the types of field
// selectors in use) will be lost.
// TODO: preserve field selector keys
func (r Request) finalURLTemplate() url.URL {
@ -921,8 +745,29 @@ func (r *Request) DoRaw() ([]byte, error) {
func (r *Request) transformResponse(resp *http.Response, req *http.Request) Result {
var body []byte
if resp.Body != nil {
if data, err := ioutil.ReadAll(resp.Body); err == nil {
data, err := ioutil.ReadAll(resp.Body)
switch err.(type) {
case nil:
body = data
case http2.StreamError:
// This is trying to catch the scenario that the server may close the connection when sending the
// response body. This can be caused by server timeout due to a slow network connection.
// TODO: Add test for this. Steps may be:
// 1. client-go (or kubectl) sends a GET request.
// 2. Apiserver sends back the headers and then part of the body
// 3. Apiserver closes connection.
// 4. client-go should catch this and return an error.
glog.V(2).Infof("Stream error %#v when reading response body, may be caused by closed connection.", err)
streamErr := fmt.Errorf("Stream error %#v when reading response body, may be caused by closed connection. Please retry.", err)
return Result{
err: streamErr,
}
default:
glog.Errorf("Unexpected error when reading response body: %#v", err)
unexpectedErr := fmt.Errorf("Unexpected error %#v when reading response body. Please retry.", err)
return Result{
err: unexpectedErr,
}
}
}
@ -1069,7 +914,7 @@ func isTextResponse(resp *http.Response) bool {
func checkWait(resp *http.Response) (int, bool) {
switch r := resp.StatusCode; {
// any 500 error code and 429 can trigger a wait
case r == errors.StatusTooManyRequests, r >= 500:
case r == http.StatusTooManyRequests, r >= 500:
default:
return 0, false
}