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/* | ||
Copyright 2015 The Kubernetes Authors All rights reserved. | ||
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. | ||
*/ | ||
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package unversioned | ||
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import ( | ||
"encoding/json" | ||
"fmt" | ||
"net/http" | ||
"net/url" | ||
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"k8s.io/kubernetes/pkg/api/unversioned" | ||
) | ||
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// DiscoveryInterface holds the methods that discover server-supported API groups, | ||
// versions and resources. | ||
type DiscoveryInterface interface { | ||
ServerGroupsInterface | ||
ServerResourcesInterface | ||
} | ||
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// GroupsInterface 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) | ||
} | ||
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// 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) | ||
} | ||
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// DiscoveryClient implements the functions that dicovery server-supported API groups, | ||
// versions and resources. | ||
type DiscoveryClient struct { | ||
httpClient HTTPClient | ||
baseURL url.URL | ||
} | ||
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// 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.GroupVersion{} | ||
for _, version := range apiVersions.Versions { | ||
groupVersion := unversioned.GroupVersion{ | ||
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 | ||
} | ||
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func (d *DiscoveryClient) get(url string) (resp *http.Response, err error) { | ||
req, err := http.NewRequest("GET", url, nil) | ||
if err != nil { | ||
return nil, err | ||
} | ||
return d.httpClient.Do(req) | ||
} | ||
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// APIGroups 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 | ||
url := d.baseURL | ||
url.Path = "/api" | ||
resp, err := d.get(url.String()) | ||
if err != nil { | ||
return nil, err | ||
} | ||
var v unversioned.APIVersions | ||
defer resp.Body.Close() | ||
err = json.NewDecoder(resp.Body).Decode(&v) | ||
if err != nil { | ||
return nil, fmt.Errorf("unexpected error: %v", err) | ||
} | ||
apiGroup := apiVersionsToAPIGroup(&v) | ||
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// Get the groupVersions exposed at /apis | ||
url.Path = "/apis" | ||
resp2, err := d.get(url.String()) | ||
if err != nil { | ||
return nil, err | ||
} | ||
defer resp2.Body.Close() | ||
apiGroupList = &unversioned.APIGroupList{} | ||
if err = json.NewDecoder(resp2.Body).Decode(&apiGroupList); err != nil { | ||
return nil, fmt.Errorf("unexpected error: %v", err) | ||
} | ||
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// append the group retrieved from /api to the list | ||
apiGroupList.Groups = append(apiGroupList.Groups, apiGroup) | ||
return apiGroupList, nil | ||
} | ||
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// APIResourcesForGroup returns the supported resources for a group and version. | ||
func (d *DiscoveryClient) ServerResourcesForGroupVersion(groupVersion string) (resources *unversioned.APIResourceList, err error) { | ||
url := d.baseURL | ||
if groupVersion == "v1" { | ||
url.Path = "/api/" + groupVersion | ||
} else { | ||
url.Path = "/apis/" + groupVersion | ||
} | ||
resp, err := d.get(url.String()) | ||
if err != nil { | ||
return nil, err | ||
} | ||
defer resp.Body.Close() | ||
resources = &unversioned.APIResourceList{} | ||
if err = json.NewDecoder(resp.Body).Decode(resources); err != nil { | ||
return nil, fmt.Errorf("unexpected error: %v", err) | ||
} | ||
return resources, nil | ||
} | ||
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// APIResources 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 := 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 | ||
} | ||
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func setDiscoveryDefaults(config *Config) error { | ||
config.Prefix = "" | ||
config.Version = "" | ||
return nil | ||
} | ||
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// NewDiscoveryClient creates a new DiscoveryClient for the given config. This client | ||
// can be used to discover supported resources in the API server. | ||
func NewDiscoveryClient(c *Config) (*DiscoveryClient, error) { | ||
config := *c | ||
if err := setDiscoveryDefaults(&config); err != nil { | ||
return nil, err | ||
} | ||
transport, err := TransportFor(c) | ||
if err != nil { | ||
return nil, err | ||
} | ||
client := &http.Client{Transport: transport} | ||
baseURL, err := defaultServerUrlFor(c) | ||
return &DiscoveryClient{client, *baseURL}, nil | ||
} |
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TeamCity OSS :: Kubernetes Mesos :: 5 - Smoke Tests (docker/mesos) Build 1239 outcome was SUCCESS
Summary: Tests passed: 1, ignored: 185 Build time: 00:06:48