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server.go
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server.go
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/*
Copyright 2018 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 fixtures
import (
"io/ioutil"
"os"
"strings"
"github.com/pborman/uuid"
"k8s.io/apiextensions-apiserver/pkg/cmd/server/options"
"k8s.io/apiextensions-apiserver/pkg/client/clientset/clientset"
servertesting "k8s.io/apiextensions-apiserver/pkg/cmd/server/testing"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/rest"
)
// StartDefaultServer starts a test server.
func StartDefaultServer(t servertesting.Logger) (func(), *rest.Config, *options.CustomResourceDefinitionsServerOptions, error) {
// create kubeconfig which will not actually be used. But authz/authn needs it to startup.
fakeKubeConfig, err := ioutil.TempFile("", "kubeconfig")
fakeKubeConfig.WriteString(`
apiVersion: v1
kind: Config
clusters:
- cluster:
server: http://127.1.2.3:12345
name: integration
contexts:
- context:
cluster: integration
user: test
name: default-context
current-context: default-context
users:
- name: test
user:
password: test
username: test
`)
fakeKubeConfig.Close()
s, err := servertesting.StartTestServer(t, nil, []string{
"--etcd-prefix", uuid.New(),
"--etcd-servers", strings.Join(IntegrationEtcdServers(), ","),
"--authentication-skip-lookup",
"--authentication-kubeconfig", fakeKubeConfig.Name(),
"--authorization-kubeconfig", fakeKubeConfig.Name(),
"--kubeconfig", fakeKubeConfig.Name(),
"--disable-admission-plugins", "NamespaceLifecycle,MutatingAdmissionWebhook,ValidatingAdmissionWebhook",
}, nil)
if err != nil {
os.Remove(fakeKubeConfig.Name())
return nil, nil, nil, err
}
tearDownFn := func() {
defer os.Remove(fakeKubeConfig.Name())
s.TearDownFn()
}
return tearDownFn, s.ClientConfig, s.ServerOpts, nil
}
// StartDefaultServerWithClients starts a test server and returns clients for it.
func StartDefaultServerWithClients(t servertesting.Logger) (func(), clientset.Interface, dynamic.Interface, error) {
tearDown, config, _, err := StartDefaultServer(t)
if err != nil {
return nil, nil, nil, err
}
apiExtensionsClient, err := clientset.NewForConfig(config)
if err != nil {
tearDown()
return nil, nil, nil, err
}
dynamicClient, err := dynamic.NewForConfig(config)
if err != nil {
tearDown()
return nil, nil, nil, err
}
return tearDown, apiExtensionsClient, dynamicClient, nil
}
// IntegrationEtcdServers returns etcd server URLs.
func IntegrationEtcdServers() []string {
if etcdURL, ok := os.LookupEnv("KUBE_INTEGRATION_ETCD_URL"); ok {
return []string{etcdURL}
}
return []string{"http://127.0.0.1:2379"}
}