From c4a34b2fe6f7317bf17fa478a734e5bdab30c278 Mon Sep 17 00:00:00 2001 From: HuabingZhao Date: Mon, 4 Sep 2017 19:33:48 +0800 Subject: Use maven to build kube2msb Issue-Id: OOM-61 Change-Id: Ic7e733c95e28b75b66535b343ae22c893db24531 Signed-off-by: HuabingZhao --- .../pkg/client/typed/discovery/discovery_client.go | 317 +++++++++++++++++++++ 1 file changed, 317 insertions(+) create mode 100644 src/kube2msb/vendor/k8s.io/kubernetes/pkg/client/typed/discovery/discovery_client.go (limited to 'src/kube2msb/vendor/k8s.io/kubernetes/pkg/client/typed') diff --git a/src/kube2msb/vendor/k8s.io/kubernetes/pkg/client/typed/discovery/discovery_client.go b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/client/typed/discovery/discovery_client.go new file mode 100644 index 0000000..1bd18b9 --- /dev/null +++ b/src/kube2msb/vendor/k8s.io/kubernetes/pkg/client/typed/discovery/discovery_client.go @@ -0,0 +1,317 @@ +/* +Copyright 2015 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 ( + "encoding/json" + "fmt" + "net/url" + "strings" + + "github.com/emicklei/go-restful/swagger" + + "k8s.io/kubernetes/pkg/api" + "k8s.io/kubernetes/pkg/api/errors" + "k8s.io/kubernetes/pkg/api/unversioned" + "k8s.io/kubernetes/pkg/api/v1" + "k8s.io/kubernetes/pkg/client/restclient" + "k8s.io/kubernetes/pkg/runtime" + "k8s.io/kubernetes/pkg/runtime/serializer" + utilerrors "k8s.io/kubernetes/pkg/util/errors" + "k8s.io/kubernetes/pkg/version" +) + +// DiscoveryInterface holds the methods that discover server-supported API groups, +// versions and resources. +type DiscoveryInterface interface { + ServerGroupsInterface + ServerResourcesInterface + ServerVersionInterface + SwaggerSchemaInterface +} + +// ServerGroupsInterface has methods for obtaining supported groups on the API server +type ServerGroupsInterface interface { + // ServerGroups returns the supported groups, with information like supported versions and the + // preferred version. + ServerGroups() (*unversioned.APIGroupList, error) +} + +// ServerResourcesInterface has methods for obtaining supported resources on the API server +type ServerResourcesInterface interface { + // ServerResourcesForGroupVersion returns the supported resources for a group and version. + ServerResourcesForGroupVersion(groupVersion string) (*unversioned.APIResourceList, error) + // ServerResources returns the supported resources for all groups and versions. + ServerResources() (map[string]*unversioned.APIResourceList, error) + // ServerPreferredResources returns the supported resources with the version preferred by the + // server. + ServerPreferredResources() ([]unversioned.GroupVersionResource, error) + // ServerPreferredNamespacedResources returns the supported namespaced resources with the + // version preferred by the server. + ServerPreferredNamespacedResources() ([]unversioned.GroupVersionResource, error) +} + +// ServerVersionInterface has a method for retrieving the server's version. +type ServerVersionInterface interface { + // ServerVersion retrieves and parses the server's version (git version). + ServerVersion() (*version.Info, error) +} + +// SwaggerSchemaInterface has a method to retrieve the swagger schema. +type SwaggerSchemaInterface interface { + // SwaggerSchema retrieves and parses the swagger API schema the server supports. + SwaggerSchema(version unversioned.GroupVersion) (*swagger.ApiDeclaration, error) +} + +// DiscoveryClient implements the functions that discover server-supported API groups, +// versions and resources. +type DiscoveryClient struct { + *restclient.RESTClient + + LegacyPrefix string +} + +// Convert unversioned.APIVersions to unversioned.APIGroup. APIVersions is used by legacy v1, so +// group would be "". +func apiVersionsToAPIGroup(apiVersions *unversioned.APIVersions) (apiGroup unversioned.APIGroup) { + groupVersions := []unversioned.GroupVersionForDiscovery{} + for _, version := range apiVersions.Versions { + groupVersion := unversioned.GroupVersionForDiscovery{ + GroupVersion: version, + Version: version, + } + groupVersions = append(groupVersions, groupVersion) + } + apiGroup.Versions = groupVersions + // There should be only one groupVersion returned at /api + apiGroup.PreferredVersion = groupVersions[0] + return +} + +// ServerGroups returns the supported groups, with information like supported versions and the +// preferred version. +func (d *DiscoveryClient) ServerGroups() (apiGroupList *unversioned.APIGroupList, err error) { + // Get the groupVersions exposed at /api + v := &unversioned.APIVersions{} + err = d.Get().AbsPath(d.LegacyPrefix).Do().Into(v) + apiGroup := unversioned.APIGroup{} + if err == nil { + apiGroup = apiVersionsToAPIGroup(v) + } + if err != nil && !errors.IsNotFound(err) && !errors.IsForbidden(err) { + return nil, err + } + + // Get the groupVersions exposed at /apis + apiGroupList = &unversioned.APIGroupList{} + err = d.Get().AbsPath("/apis").Do().Into(apiGroupList) + if err != nil && !errors.IsNotFound(err) && !errors.IsForbidden(err) { + return nil, err + } + // to be compatible with a v1.0 server, if it's a 403 or 404, ignore and return whatever we got from /api + if err != nil && (errors.IsNotFound(err) || errors.IsForbidden(err)) { + apiGroupList = &unversioned.APIGroupList{} + } + + // append the group retrieved from /api to the list + apiGroupList.Groups = append(apiGroupList.Groups, apiGroup) + return apiGroupList, nil +} + +// ServerResourcesForGroupVersion returns the supported resources for a group and version. +func (d *DiscoveryClient) ServerResourcesForGroupVersion(groupVersion string) (resources *unversioned.APIResourceList, err error) { + url := url.URL{} + if len(groupVersion) == 0 { + return nil, fmt.Errorf("groupVersion shouldn't be empty") + } + if len(d.LegacyPrefix) > 0 && groupVersion == "v1" { + url.Path = d.LegacyPrefix + "/" + groupVersion + } else { + url.Path = "/apis/" + groupVersion + } + resources = &unversioned.APIResourceList{} + err = d.Get().AbsPath(url.String()).Do().Into(resources) + if err != nil { + // ignore 403 or 404 error to be compatible with an v1.0 server. + if groupVersion == "v1" && (errors.IsNotFound(err) || errors.IsForbidden(err)) { + return resources, nil + } else { + return nil, err + } + } + return resources, nil +} + +// ServerResources returns the supported resources for all groups and versions. +func (d *DiscoveryClient) ServerResources() (map[string]*unversioned.APIResourceList, error) { + apiGroups, err := d.ServerGroups() + if err != nil { + return nil, err + } + groupVersions := unversioned.ExtractGroupVersions(apiGroups) + result := map[string]*unversioned.APIResourceList{} + for _, groupVersion := range groupVersions { + resources, err := d.ServerResourcesForGroupVersion(groupVersion) + if err != nil { + return nil, err + } + result[groupVersion] = resources + } + return result, nil +} + +// serverPreferredResources returns the supported resources with the version preferred by the +// server. If namespaced is true, only namespaced resources will be returned. +func (d *DiscoveryClient) serverPreferredResources(namespaced bool) ([]unversioned.GroupVersionResource, error) { + results := []unversioned.GroupVersionResource{} + serverGroupList, err := d.ServerGroups() + if err != nil { + return results, err + } + + allErrs := []error{} + for _, apiGroup := range serverGroupList.Groups { + preferredVersion := apiGroup.PreferredVersion + apiResourceList, err := d.ServerResourcesForGroupVersion(preferredVersion.GroupVersion) + if err != nil { + allErrs = append(allErrs, err) + continue + } + groupVersion := unversioned.GroupVersion{Group: apiGroup.Name, Version: preferredVersion.Version} + for _, apiResource := range apiResourceList.APIResources { + // ignore the root scoped resources if "namespaced" is true. + if namespaced && !apiResource.Namespaced { + continue + } + if strings.Contains(apiResource.Name, "/") { + continue + } + results = append(results, groupVersion.WithResource(apiResource.Name)) + } + } + return results, utilerrors.NewAggregate(allErrs) +} + +// ServerPreferredResources returns the supported resources with the version preferred by the +// server. +func (d *DiscoveryClient) ServerPreferredResources() ([]unversioned.GroupVersionResource, error) { + return d.serverPreferredResources(false) +} + +// ServerPreferredNamespacedResources returns the supported namespaced resources with the +// version preferred by the server. +func (d *DiscoveryClient) ServerPreferredNamespacedResources() ([]unversioned.GroupVersionResource, error) { + return d.serverPreferredResources(true) +} + +// ServerVersion retrieves and parses the server's version (git version). +func (d *DiscoveryClient) ServerVersion() (*version.Info, error) { + body, err := d.Get().AbsPath("/version").Do().Raw() + if err != nil { + return nil, err + } + var info version.Info + err = json.Unmarshal(body, &info) + if err != nil { + return nil, fmt.Errorf("got '%s': %v", string(body), err) + } + return &info, nil +} + +// SwaggerSchema retrieves and parses the swagger API schema the server supports. +func (d *DiscoveryClient) SwaggerSchema(version unversioned.GroupVersion) (*swagger.ApiDeclaration, error) { + if version.IsEmpty() { + return nil, fmt.Errorf("groupVersion cannot be empty") + } + + groupList, err := d.ServerGroups() + if err != nil { + return nil, err + } + groupVersions := unversioned.ExtractGroupVersions(groupList) + // This check also takes care the case that kubectl is newer than the running endpoint + if stringDoesntExistIn(version.String(), groupVersions) { + return nil, fmt.Errorf("API version: %v is not supported by the server. Use one of: %v", version, groupVersions) + } + var path string + if len(d.LegacyPrefix) > 0 && version == v1.SchemeGroupVersion { + path = "/swaggerapi" + d.LegacyPrefix + "/" + version.Version + } else { + path = "/swaggerapi/apis/" + version.Group + "/" + version.Version + } + + body, err := d.Get().AbsPath(path).Do().Raw() + if err != nil { + return nil, err + } + var schema swagger.ApiDeclaration + err = json.Unmarshal(body, &schema) + if err != nil { + return nil, fmt.Errorf("got '%s': %v", string(body), err) + } + return &schema, nil +} + +func setDiscoveryDefaults(config *restclient.Config) error { + config.APIPath = "" + config.GroupVersion = nil + codec := runtime.NoopEncoder{Decoder: api.Codecs.UniversalDecoder()} + config.NegotiatedSerializer = serializer.NegotiatedSerializerWrapper( + runtime.SerializerInfo{Serializer: codec}, + runtime.StreamSerializerInfo{}, + ) + if len(config.UserAgent) == 0 { + config.UserAgent = restclient.DefaultKubernetesUserAgent() + } + return nil +} + +// NewDiscoveryClientForConfig creates a new DiscoveryClient for the given config. This client +// can be used to discover supported resources in the API server. +func NewDiscoveryClientForConfig(c *restclient.Config) (*DiscoveryClient, error) { + config := *c + if err := setDiscoveryDefaults(&config); err != nil { + return nil, err + } + client, err := restclient.UnversionedRESTClientFor(&config) + return &DiscoveryClient{RESTClient: client, LegacyPrefix: "/api"}, err +} + +// NewDiscoveryClientForConfig creates a new DiscoveryClient for the given config. If +// there is an error, it panics. +func NewDiscoveryClientForConfigOrDie(c *restclient.Config) *DiscoveryClient { + client, err := NewDiscoveryClientForConfig(c) + if err != nil { + panic(err) + } + return client + +} + +// New creates a new DiscoveryClient for the given RESTClient. +func NewDiscoveryClient(c *restclient.RESTClient) *DiscoveryClient { + return &DiscoveryClient{RESTClient: c, LegacyPrefix: "/api"} +} + +func stringDoesntExistIn(str string, slice []string) bool { + for _, s := range slice { + if s == str { + return false + } + } + return true +} -- cgit 1.2.3-korg