feat: add crd gen

Signed-off-by: runzexia <runzexia@yunify.com>

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
+}

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)
+}

vendor/k8s.io/apiserver/pkg/endpoints/discovery/legacy.go

@@ -0,0 +1,76 @@
+/*
+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
+}
+
+func NewLegacyRootAPIHandler(addresses Addresses, serializer runtime.NegotiatedSerializer, apiPrefix 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,
+	}
+}
+
+// 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:                   []string{"v1"},
+	}
+
+	responsewriters.WriteObjectNegotiated(s.serializer, schema.GroupVersion{}, resp.ResponseWriter, req.Request, http.StatusOK, apiVersions)
+}

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
+}

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}
+}

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()})
+}