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federation.go
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federation.go
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/*
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 framework
import (
"fmt"
"testing"
"time"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
federationapi "k8s.io/kubernetes/federation/apis/federation/v1beta1"
federationclientset "k8s.io/kubernetes/federation/client/clientset_generated/federation_clientset"
clustercontroller "k8s.io/kubernetes/federation/pkg/federation-controller/cluster"
"k8s.io/kubernetes/pkg/client/clientset_generated/clientset"
"k8s.io/kubernetes/pkg/master"
"k8s.io/kubernetes/test/integration/framework"
)
type MemberCluster struct {
CloseFn framework.CloseFunc
Config *master.Config
Client clientset.Interface
Host string
}
// FederationFixture manages a federation api server and a set of member clusters
type FederationFixture struct {
APIFixture *FederationAPIFixture
DesiredClusterCount int
Clusters []*MemberCluster
ClusterClients []clientset.Interface
ClusterController *clustercontroller.ClusterController
fedClient federationclientset.Interface
stopChan chan struct{}
}
func (f *FederationFixture) SetUp(t *testing.T) {
if f.APIFixture != nil {
t.Fatal("Fixture already started")
}
if f.DesiredClusterCount < 1 {
f.DesiredClusterCount = 1
}
defer TearDownOnPanic(t, f)
t.Logf("Starting a federation of %d clusters", f.DesiredClusterCount)
f.APIFixture = &FederationAPIFixture{}
f.APIFixture.SetUp(t)
f.stopChan = make(chan struct{})
monitorPeriod := 1 * time.Second
clustercontroller.StartClusterController(f.APIFixture.NewConfig(), f.stopChan, monitorPeriod)
f.fedClient = f.APIFixture.NewClient("federation-fixture")
for i := 0; i < f.DesiredClusterCount; i++ {
f.StartCluster(t)
}
}
func (f *FederationFixture) StartCluster(t *testing.T) {
config := framework.NewMasterConfig()
_, _, closeFn := framework.RunAMaster(config)
host := config.GenericConfig.LoopbackClientConfig.Host
clusterClient := clientset.NewForConfigOrDie(config.GenericConfig.LoopbackClientConfig)
f.ClusterClients = append(f.ClusterClients, clusterClient)
f.Clusters = append(f.Clusters, &MemberCluster{
CloseFn: closeFn,
Config: config,
Client: clusterClient,
Host: host,
})
clusterId := len(f.ClusterClients)
t.Logf("Federated cluster %d serving on %s", clusterId, host)
cluster := &federationapi.Cluster{
ObjectMeta: metav1.ObjectMeta{
Name: fmt.Sprintf("cluster-%d", clusterId),
Labels: map[string]string{"cluster": fmt.Sprintf("%d", clusterId)},
},
Spec: federationapi.ClusterSpec{
ServerAddressByClientCIDRs: []federationapi.ServerAddressByClientCIDR{
{
ClientCIDR: "0.0.0.0/0",
ServerAddress: host,
},
},
// Use insecure access
SecretRef: nil,
},
}
f.fedClient.FederationV1beta1().Clusters().Create(cluster)
}
func (f *FederationFixture) TearDown(t *testing.T) {
if f.stopChan != nil {
close(f.stopChan)
f.stopChan = nil
}
for _, cluster := range f.Clusters {
cluster.CloseFn()
}
f.Clusters = nil
if f.APIFixture != nil {
f.APIFixture.TearDown(t)
f.APIFixture = nil
}
}