git subrepo clone (merge) https://github.com/kubernetes-incubator/metrics-server.git metrics-server
subrepo:
subdir: "metrics-server"
merged: "92d8412"
upstream:
origin: "https://github.com/kubernetes-incubator/metrics-server.git"
branch: "master"
commit: "92d8412"
git-subrepo:
version: "0.4.0"
origin: "???"
commit: "???"
diff --git a/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/addresses.go b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/addresses.go
new file mode 100644
index 0000000..d175d15
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/addresses.go
@@ -0,0 +1,72 @@
+/*
+Copyright 2016 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 discovery
+
+import (
+ "net"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+type Addresses interface {
+ ServerAddressByClientCIDRs(net.IP) []metav1.ServerAddressByClientCIDR
+}
+
+// DefaultAddresses is a default implementation of Addresses that will work in most cases
+type DefaultAddresses struct {
+ // CIDRRules is a list of CIDRs and Addresses to use if a client is in the range
+ CIDRRules []CIDRRule
+
+ // DefaultAddress is the address (hostname or IP and port) that should be used in
+ // if no CIDR matches more specifically.
+ DefaultAddress string
+}
+
+// CIDRRule is a rule for adding an alternate path to the master based on matching CIDR
+type CIDRRule struct {
+ IPRange net.IPNet
+
+ // Address is the address (hostname or IP and port) that should be used in
+ // if this CIDR matches
+ Address string
+}
+
+func (d DefaultAddresses) ServerAddressByClientCIDRs(clientIP net.IP) []metav1.ServerAddressByClientCIDR {
+ addressCIDRMap := []metav1.ServerAddressByClientCIDR{
+ {
+ ClientCIDR: "0.0.0.0/0",
+ ServerAddress: d.DefaultAddress,
+ },
+ }
+
+ for _, rule := range d.CIDRRules {
+ addressCIDRMap = append(addressCIDRMap, rule.ServerAddressByClientCIDRs(clientIP)...)
+ }
+ return addressCIDRMap
+}
+
+func (d CIDRRule) ServerAddressByClientCIDRs(clientIP net.IP) []metav1.ServerAddressByClientCIDR {
+ addressCIDRMap := []metav1.ServerAddressByClientCIDR{}
+
+ if d.IPRange.Contains(clientIP) {
+ addressCIDRMap = append(addressCIDRMap, metav1.ServerAddressByClientCIDR{
+ ClientCIDR: d.IPRange.String(),
+ ServerAddress: d.Address,
+ })
+ }
+ return addressCIDRMap
+}
diff --git a/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/group.go b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/group.go
new file mode 100644
index 0000000..02330e9
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/group.go
@@ -0,0 +1,73 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package discovery
+
+import (
+ "net/http"
+
+ "github.com/emicklei/go-restful"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ "k8s.io/apiserver/pkg/endpoints/handlers/negotiation"
+ "k8s.io/apiserver/pkg/endpoints/handlers/responsewriters"
+)
+
+// APIGroupHandler creates a webservice serving the supported versions, preferred version, and name
+// of a group. E.g., such a web service will be registered at /apis/extensions.
+type APIGroupHandler struct {
+ serializer runtime.NegotiatedSerializer
+ group metav1.APIGroup
+}
+
+func NewAPIGroupHandler(serializer runtime.NegotiatedSerializer, group metav1.APIGroup) *APIGroupHandler {
+ if keepUnversioned(group.Name) {
+ // Because in release 1.1, /apis/extensions returns response with empty
+ // APIVersion, we use stripVersionNegotiatedSerializer to keep the
+ // response backwards compatible.
+ serializer = stripVersionNegotiatedSerializer{serializer}
+ }
+
+ return &APIGroupHandler{
+ serializer: serializer,
+ group: group,
+ }
+}
+
+func (s *APIGroupHandler) WebService() *restful.WebService {
+ mediaTypes, _ := negotiation.MediaTypesForSerializer(s.serializer)
+ ws := new(restful.WebService)
+ ws.Path(APIGroupPrefix + "/" + s.group.Name)
+ ws.Doc("get information of a group")
+ ws.Route(ws.GET("/").To(s.handle).
+ Doc("get information of a group").
+ Operation("getAPIGroup").
+ Produces(mediaTypes...).
+ Consumes(mediaTypes...).
+ Writes(metav1.APIGroup{}))
+ return ws
+}
+
+// handle returns a handler which will return the api.GroupAndVersion of the group.
+func (s *APIGroupHandler) handle(req *restful.Request, resp *restful.Response) {
+ s.ServeHTTP(resp.ResponseWriter, req.Request)
+}
+
+func (s *APIGroupHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+ responsewriters.WriteObjectNegotiated(s.serializer, schema.GroupVersion{}, w, req, http.StatusOK, &s.group)
+}
diff --git a/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/legacy.go b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/legacy.go
new file mode 100644
index 0000000..fb648e5
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/legacy.go
@@ -0,0 +1,78 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package discovery
+
+import (
+ "net/http"
+
+ "github.com/emicklei/go-restful"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ utilnet "k8s.io/apimachinery/pkg/util/net"
+ "k8s.io/apiserver/pkg/endpoints/handlers/negotiation"
+ "k8s.io/apiserver/pkg/endpoints/handlers/responsewriters"
+)
+
+// legacyRootAPIHandler creates a webservice serving api group discovery.
+type legacyRootAPIHandler struct {
+ // addresses is used to build cluster IPs for discovery.
+ addresses Addresses
+ apiPrefix string
+ serializer runtime.NegotiatedSerializer
+ apiVersions []string
+}
+
+func NewLegacyRootAPIHandler(addresses Addresses, serializer runtime.NegotiatedSerializer, apiPrefix string, apiVersions []string) *legacyRootAPIHandler {
+ // Because in release 1.1, /apis returns response with empty APIVersion, we
+ // use stripVersionNegotiatedSerializer to keep the response backwards
+ // compatible.
+ serializer = stripVersionNegotiatedSerializer{serializer}
+
+ return &legacyRootAPIHandler{
+ addresses: addresses,
+ apiPrefix: apiPrefix,
+ serializer: serializer,
+ apiVersions: apiVersions,
+ }
+}
+
+// AddApiWebService adds a service to return the supported api versions at the legacy /api.
+func (s *legacyRootAPIHandler) WebService() *restful.WebService {
+ mediaTypes, _ := negotiation.MediaTypesForSerializer(s.serializer)
+ ws := new(restful.WebService)
+ ws.Path(s.apiPrefix)
+ ws.Doc("get available API versions")
+ ws.Route(ws.GET("/").To(s.handle).
+ Doc("get available API versions").
+ Operation("getAPIVersions").
+ Produces(mediaTypes...).
+ Consumes(mediaTypes...).
+ Writes(metav1.APIVersions{}))
+ return ws
+}
+
+func (s *legacyRootAPIHandler) handle(req *restful.Request, resp *restful.Response) {
+ clientIP := utilnet.GetClientIP(req.Request)
+ apiVersions := &metav1.APIVersions{
+ ServerAddressByClientCIDRs: s.addresses.ServerAddressByClientCIDRs(clientIP),
+ Versions: s.apiVersions,
+ }
+
+ responsewriters.WriteObjectNegotiated(s.serializer, schema.GroupVersion{}, resp.ResponseWriter, req.Request, http.StatusOK, apiVersions)
+}
diff --git a/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/root.go b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/root.go
new file mode 100644
index 0000000..7ed64a9
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/root.go
@@ -0,0 +1,135 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package discovery
+
+import (
+ "net/http"
+ "sync"
+
+ restful "github.com/emicklei/go-restful"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ utilnet "k8s.io/apimachinery/pkg/util/net"
+ "k8s.io/apiserver/pkg/endpoints/handlers/negotiation"
+ "k8s.io/apiserver/pkg/endpoints/handlers/responsewriters"
+)
+
+// GroupManager is an interface that allows dynamic mutation of the existing webservice to handle
+// API groups being added or removed.
+type GroupManager interface {
+ AddGroup(apiGroup metav1.APIGroup)
+ RemoveGroup(groupName string)
+
+ WebService() *restful.WebService
+}
+
+// rootAPIsHandler creates a webservice serving api group discovery.
+// The list of APIGroups may change while the server is running because additional resources
+// are registered or removed. It is not safe to cache the values.
+type rootAPIsHandler struct {
+ // addresses is used to build cluster IPs for discovery.
+ addresses Addresses
+
+ serializer runtime.NegotiatedSerializer
+
+ // Map storing information about all groups to be exposed in discovery response.
+ // The map is from name to the group.
+ lock sync.RWMutex
+ apiGroups map[string]metav1.APIGroup
+ // apiGroupNames preserves insertion order
+ apiGroupNames []string
+}
+
+func NewRootAPIsHandler(addresses Addresses, serializer runtime.NegotiatedSerializer) *rootAPIsHandler {
+ // Because in release 1.1, /apis returns response with empty APIVersion, we
+ // use stripVersionNegotiatedSerializer to keep the response backwards
+ // compatible.
+ serializer = stripVersionNegotiatedSerializer{serializer}
+
+ return &rootAPIsHandler{
+ addresses: addresses,
+ serializer: serializer,
+ apiGroups: map[string]metav1.APIGroup{},
+ }
+}
+
+func (s *rootAPIsHandler) AddGroup(apiGroup metav1.APIGroup) {
+ s.lock.Lock()
+ defer s.lock.Unlock()
+
+ _, alreadyExists := s.apiGroups[apiGroup.Name]
+
+ s.apiGroups[apiGroup.Name] = apiGroup
+ if !alreadyExists {
+ s.apiGroupNames = append(s.apiGroupNames, apiGroup.Name)
+ }
+}
+
+func (s *rootAPIsHandler) RemoveGroup(groupName string) {
+ s.lock.Lock()
+ defer s.lock.Unlock()
+
+ delete(s.apiGroups, groupName)
+ for i := range s.apiGroupNames {
+ if s.apiGroupNames[i] == groupName {
+ s.apiGroupNames = append(s.apiGroupNames[:i], s.apiGroupNames[i+1:]...)
+ break
+ }
+ }
+}
+
+func (s *rootAPIsHandler) ServeHTTP(resp http.ResponseWriter, req *http.Request) {
+ s.lock.RLock()
+ defer s.lock.RUnlock()
+
+ orderedGroups := []metav1.APIGroup{}
+ for _, groupName := range s.apiGroupNames {
+ orderedGroups = append(orderedGroups, s.apiGroups[groupName])
+ }
+
+ clientIP := utilnet.GetClientIP(req)
+ serverCIDR := s.addresses.ServerAddressByClientCIDRs(clientIP)
+ groups := make([]metav1.APIGroup, len(orderedGroups))
+ for i := range orderedGroups {
+ groups[i] = orderedGroups[i]
+ groups[i].ServerAddressByClientCIDRs = serverCIDR
+ }
+
+ responsewriters.WriteObjectNegotiated(s.serializer, schema.GroupVersion{}, resp, req, http.StatusOK, &metav1.APIGroupList{Groups: groups})
+}
+
+func (s *rootAPIsHandler) restfulHandle(req *restful.Request, resp *restful.Response) {
+ s.ServeHTTP(resp.ResponseWriter, req.Request)
+}
+
+// WebService returns a webservice serving api group discovery.
+// Note: during the server runtime apiGroups might change.
+func (s *rootAPIsHandler) WebService() *restful.WebService {
+ mediaTypes, _ := negotiation.MediaTypesForSerializer(s.serializer)
+ ws := new(restful.WebService)
+ ws.Path(APIGroupPrefix)
+ ws.Doc("get available API versions")
+ ws.Route(ws.GET("/").To(s.restfulHandle).
+ Doc("get available API versions").
+ Operation("getAPIVersions").
+ Produces(mediaTypes...).
+ Consumes(mediaTypes...).
+ Writes(metav1.APIGroupList{}))
+ return ws
+}
diff --git a/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/util.go b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/util.go
new file mode 100644
index 0000000..81a13d6
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/util.go
@@ -0,0 +1,73 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package discovery
+
+import (
+ "bytes"
+ "fmt"
+ "io"
+
+ "k8s.io/apimachinery/pkg/runtime"
+)
+
+const APIGroupPrefix = "/apis"
+
+func keepUnversioned(group string) bool {
+ return group == "" || group == "extensions"
+}
+
+// stripVersionEncoder strips APIVersion field from the encoding output. It's
+// used to keep the responses at the discovery endpoints backward compatible
+// with release-1.1, when the responses have empty APIVersion.
+type stripVersionEncoder struct {
+ encoder runtime.Encoder
+ serializer runtime.Serializer
+}
+
+func (c stripVersionEncoder) Encode(obj runtime.Object, w io.Writer) error {
+ buf := bytes.NewBuffer([]byte{})
+ err := c.encoder.Encode(obj, buf)
+ if err != nil {
+ return err
+ }
+ roundTrippedObj, gvk, err := c.serializer.Decode(buf.Bytes(), nil, nil)
+ if err != nil {
+ return err
+ }
+ gvk.Group = ""
+ gvk.Version = ""
+ roundTrippedObj.GetObjectKind().SetGroupVersionKind(*gvk)
+ return c.serializer.Encode(roundTrippedObj, w)
+}
+
+// stripVersionNegotiatedSerializer will return stripVersionEncoder when
+// EncoderForVersion is called. See comments for stripVersionEncoder.
+type stripVersionNegotiatedSerializer struct {
+ runtime.NegotiatedSerializer
+}
+
+func (n stripVersionNegotiatedSerializer) EncoderForVersion(encoder runtime.Encoder, gv runtime.GroupVersioner) runtime.Encoder {
+ serializer, ok := encoder.(runtime.Serializer)
+ if !ok {
+ // The stripVersionEncoder needs both an encoder and decoder, but is called from a context that doesn't have access to the
+ // decoder. We do a best effort cast here (since this code path is only for backwards compatibility) to get access to the caller's
+ // decoder.
+ panic(fmt.Sprintf("Unable to extract serializer from %#v", encoder))
+ }
+ versioned := n.NegotiatedSerializer.EncoderForVersion(encoder, gv)
+ return stripVersionEncoder{versioned, serializer}
+}
diff --git a/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/version.go b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/version.go
new file mode 100644
index 0000000..aadfc7a
--- /dev/null
+++ b/metrics-server/vendor/k8s.io/apiserver/pkg/endpoints/discovery/version.go
@@ -0,0 +1,83 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package discovery
+
+import (
+ "net/http"
+
+ restful "github.com/emicklei/go-restful"
+
+ metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+ "k8s.io/apimachinery/pkg/runtime"
+ "k8s.io/apimachinery/pkg/runtime/schema"
+ "k8s.io/apiserver/pkg/endpoints/handlers/negotiation"
+ "k8s.io/apiserver/pkg/endpoints/handlers/responsewriters"
+)
+
+type APIResourceLister interface {
+ ListAPIResources() []metav1.APIResource
+}
+
+type APIResourceListerFunc func() []metav1.APIResource
+
+func (f APIResourceListerFunc) ListAPIResources() []metav1.APIResource {
+ return f()
+}
+
+// APIVersionHandler creates a webservice serving the supported resources for the version
+// E.g., such a web service will be registered at /apis/extensions/v1beta1.
+type APIVersionHandler struct {
+ serializer runtime.NegotiatedSerializer
+
+ groupVersion schema.GroupVersion
+ apiResourceLister APIResourceLister
+}
+
+func NewAPIVersionHandler(serializer runtime.NegotiatedSerializer, groupVersion schema.GroupVersion, apiResourceLister APIResourceLister) *APIVersionHandler {
+ if keepUnversioned(groupVersion.Group) {
+ // Because in release 1.1, /apis/extensions returns response with empty
+ // APIVersion, we use stripVersionNegotiatedSerializer to keep the
+ // response backwards compatible.
+ serializer = stripVersionNegotiatedSerializer{serializer}
+ }
+
+ return &APIVersionHandler{
+ serializer: serializer,
+ groupVersion: groupVersion,
+ apiResourceLister: apiResourceLister,
+ }
+}
+
+func (s *APIVersionHandler) AddToWebService(ws *restful.WebService) {
+ mediaTypes, _ := negotiation.MediaTypesForSerializer(s.serializer)
+ ws.Route(ws.GET("/").To(s.handle).
+ Doc("get available resources").
+ Operation("getAPIResources").
+ Produces(mediaTypes...).
+ Consumes(mediaTypes...).
+ Writes(metav1.APIResourceList{}))
+}
+
+// handle returns a handler which will return the api.VersionAndVersion of the group.
+func (s *APIVersionHandler) handle(req *restful.Request, resp *restful.Response) {
+ s.ServeHTTP(resp.ResponseWriter, req.Request)
+}
+
+func (s *APIVersionHandler) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+ responsewriters.WriteObjectNegotiated(s.serializer, schema.GroupVersion{}, w, req, http.StatusOK,
+ &metav1.APIResourceList{GroupVersion: s.groupVersion.String(), APIResources: s.apiResourceLister.ListAPIResources()})
+}