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etcd.go
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etcd.go
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package util
import (
"encoding/json"
"flag"
"os"
goruntime "runtime"
"strings"
"testing"
"golang.org/x/net/context"
"github.com/coreos/pkg/capnslog"
etcdclient "github.com/coreos/etcd/client"
"k8s.io/kubernetes/pkg/capabilities"
etcdtest "k8s.io/kubernetes/pkg/storage/etcd/testing"
serveretcd "github.com/openshift/origin/pkg/cmd/server/etcd"
)
func init() {
capabilities.SetForTests(capabilities.Capabilities{
AllowPrivileged: true,
})
flag.Set("v", "5")
if len(os.Getenv("OS_TEST_VERBOSE_ETCD")) > 0 {
capnslog.SetGlobalLogLevel(capnslog.DEBUG)
capnslog.SetFormatter(capnslog.NewGlogFormatter(os.Stderr))
} else {
capnslog.SetGlobalLogLevel(capnslog.INFO)
capnslog.SetFormatter(capnslog.NewGlogFormatter(os.Stderr))
}
}
// url is the url for the launched etcd server
var url string
// RequireEtcd verifies if the etcd is running and accessible for testing
func RequireEtcd(t *testing.T) *etcdtest.EtcdTestServer {
s := etcdtest.NewUnsecuredEtcdTestClientServer(t)
url = s.Client.Endpoints()[0]
return s
}
func NewEtcdClient() etcdclient.Client {
client, _ := MakeNewEtcdClient()
return client
}
func MakeNewEtcdClient() (etcdclient.Client, error) {
etcdServers := []string{GetEtcdURL()}
cfg := etcdclient.Config{
Endpoints: etcdServers,
}
client, err := etcdclient.New(cfg)
if err != nil {
return nil, err
}
return client, serveretcd.TestEtcdClient(client)
}
func GetEtcdURL() string {
if len(url) == 0 {
panic("can't invoke GetEtcdURL prior to calling RequireEtcd")
}
return url
}
func DumpEtcdOnFailure(t *testing.T) {
if !t.Failed() {
return
}
pc := make([]uintptr, 10)
goruntime.Callers(2, pc)
f := goruntime.FuncForPC(pc[0])
last := strings.LastIndex(f.Name(), "Test")
if last == -1 {
last = 0
}
name := f.Name()[last:]
client := NewEtcdClient()
keyClient := etcdclient.NewKeysAPI(client)
response, err := keyClient.Get(context.Background(), "/", &etcdclient.GetOptions{Recursive: true, Sort: true})
if err != nil {
t.Logf("error dumping etcd: %v", err)
return
}
jsonResponse, err := json.Marshal(response.Node)
if err != nil {
t.Logf("error encoding etcd dump: %v", err)
return
}
t.Logf("dumping etcd to %q", GetBaseDir()+"/etcd-dump-"+name+".json")
dumpFile, err := os.OpenFile(GetBaseDir()+"/etcd-dump-"+name+".json", os.O_WRONLY|os.O_CREATE, 0444)
if err != nil {
t.Logf("error writing etcd dump: %v", err)
return
}
defer dumpFile.Close()
_, err = dumpFile.Write(jsonResponse)
if err != nil {
t.Logf("error writing etcd dump: %v", err)
return
}
}