本文整理汇总了Golang中github.com/coreos/etcd/clientv3.New函数的典型用法代码示例。如果您正苦于以下问题：Golang New函数的具体用法？Golang New怎么用？Golang New使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了New函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Golang代码示例。
示例1: ExampleMaintenance_status
func ExampleMaintenance_status() {
for _, ep := range endpoints {
cli, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
DialTimeout: dialTimeout,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close()
// resp, err := cli.Status(context.Background(), ep)
//
// or
//
mapi := clientv3.NewMaintenance(cli)
resp, err := mapi.Status(context.Background(), ep)
if err != nil {
log.Fatal(err)
}
fmt.Printf("endpoint: %s / IsLeader: %v\n", ep, resp.Header.MemberId == resp.Leader)
}
// endpoint: localhost:2379 / IsLeader: false
// endpoint: localhost:22379 / IsLeader: false
// endpoint: localhost:32379 / IsLeader: true
}示例2: ExampleLease_keepAliveOnce
func ExampleLease_keepAliveOnce() {
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close()
resp, err := cli.Grant(context.TODO(), 5)
if err != nil {
log.Fatal(err)
}
_, err = cli.Put(context.TODO(), "foo", "bar", clientv3.WithLease(clientv3.LeaseID(resp.ID)))
if err != nil {
log.Fatal(err)
}
// to renew the lease only once
_, err = cli.KeepAliveOnce(context.TODO(), clientv3.LeaseID(resp.ID))
if err != nil {
log.Fatal(err)
}
}示例3: ExampleLease_keepAliveOnce
func ExampleLease_keepAliveOnce() {
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close()
resp, err := cli.Grant(context.TODO(), 5)
if err != nil {
log.Fatal(err)
}
_, err = cli.Put(context.TODO(), "foo", "bar", clientv3.WithLease(resp.ID))
if err != nil {
log.Fatal(err)
}
// to renew the lease only once
ka, kaerr := cli.KeepAliveOnce(context.TODO(), resp.ID)
if kaerr != nil {
log.Fatal(kaerr)
}
fmt.Println("ttl:", ka.TTL)
// Output: ttl: 5
}示例4: ExampleLease_keepAlive
func ExampleLease_keepAlive() {
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close()
resp, err := cli.Grant(context.TODO(), 5)
if err != nil {
log.Fatal(err)
}
_, err = cli.Put(context.TODO(), "foo", "bar", clientv3.WithLease(resp.ID))
if err != nil {
log.Fatal(err)
}
// the key 'foo' will be kept forever
ch, kaerr := cli.KeepAlive(context.TODO(), resp.ID)
if kaerr != nil {
log.Fatal(kaerr)
}
ka := <-ch
fmt.Println("ttl:", ka.TTL)
// Output: ttl: 5
}示例5: GetLeader
// GetLeader returns the index of leader and error if any.
func (c *cluster) GetLeader() (int, error) {
if c.v2Only {
return 0, nil
}
for i, ep := range c.GRPCURLs {
cli, err := clientv3.New(clientv3.Config{
Endpoints: []string{ep},
DialTimeout: 5 * time.Second,
})
if err != nil {
return 0, err
}
defer cli.Close()
mapi := clientv3.NewMaintenance(cli)
resp, err := mapi.Status(context.Background(), ep)
if err != nil {
return 0, err
}
if resp.Header.MemberId == resp.Leader {
return i, nil
}
}
return 0, fmt.Errorf("no leader found")
}示例6: checkCompact
func (c *cluster) checkCompact(rev int64) error {
if rev == 0 {
return nil
}
for _, u := range c.GRPCURLs {
cli, err := clientv3.New(clientv3.Config{
Endpoints: []string{u},
DialTimeout: 5 * time.Second,
})
if err != nil {
return fmt.Errorf("%v (endpoint %s)", err, u)
}
ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
wch := cli.Watch(ctx, "\x00", clientv3.WithFromKey(), clientv3.WithRev(rev-1))
wr, ok := <-wch
cancel()
cli.Close()
if !ok {
return fmt.Errorf("watch channel terminated (endpoint %s)", u)
}
if wr.CompactRevision != rev {
return fmt.Errorf("got compact revision %v, wanted %v (endpoint %s)", wr.CompactRevision, rev, u)
}
}
return nil
}示例7: newETCD3Storage
func newETCD3Storage(c storagebackend.Config) (storage.Interface, error) {
tlsInfo := transport.TLSInfo{
CertFile: c.CertFile,
KeyFile: c.KeyFile,
CAFile: c.CAFile,
}
tlsConfig, err := tlsInfo.ClientConfig()
if err != nil {
return nil, err
}
// NOTE: Client relies on nil tlsConfig
// for non-secure connections, update the implicit variable
if len(c.CertFile) == 0 && len(c.KeyFile) == 0 && len(c.CAFile) == 0 {
tlsConfig = nil
}
cfg := clientv3.Config{
Endpoints: c.ServerList,
TLS: tlsConfig,
}
client, err := clientv3.New(cfg)
if err != nil {
return nil, err
}
etcd3.StartCompactor(context.Background(), client)
return etcd3.New(client, c.Codec, c.Prefix), nil
}示例8: ExampleKV_getWithRev
func ExampleKV_getWithRev() {
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close()
presp, err := cli.Put(context.TODO(), "foo", "bar1")
if err != nil {
log.Fatal(err)
}
_, err = cli.Put(context.TODO(), "foo", "bar2")
if err != nil {
log.Fatal(err)
}
ctx, cancel := context.WithTimeout(context.Background(), requestTimeout)
resp, err := cli.Get(ctx, "foo", clientv3.WithRev(presp.Header.Revision))
cancel()
if err != nil {
log.Fatal(err)
}
for _, ev := range resp.Kvs {
fmt.Printf("%s : %s\n", ev.Key, ev.Value)
}
// Output: foo : bar1
}示例9: setRing
func setRing(cfg torus.Config, r torus.Ring) error {
client, err := etcdv3.New(etcdv3.Config{Endpoints: []string{cfg.MetadataAddress}, TLS: cfg.TLS})
if err != nil {
return err
}
defer client.Close()
resp, err := client.Get(context.Background(), MkKey("meta", "the-one-ring"))
if err != nil {
return err
}
if len(resp.Kvs) == 0 {
return torus.ErrNoGlobalMetadata
}
oldr, err := ring.Unmarshal(resp.Kvs[0].Value)
if err != nil {
return err
}
if oldr.Version() != r.Version()-1 {
return torus.ErrNonSequentialRing
}
b, err := r.Marshal()
if err != nil {
return err
}
_, err = client.Put(context.Background(), MkKey("meta", "the-one-ring"), string(b))
return err
}示例10: ExampleConfig_withTLS
func ExampleConfig_withTLS() {
tlsInfo := transport.TLSInfo{
CertFile: "/tmp/test-certs/test-name-1.pem",
KeyFile: "/tmp/test-certs/test-name-1-key.pem",
TrustedCAFile: "/tmp/test-certs/trusted-ca.pem",
}
tlsConfig, err := tlsInfo.ClientConfig()
if err != nil {
log.Fatal(err)
}
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
TLS: tlsConfig,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close() // make sure to close the client
_, err = cli.Put(context.TODO(), "foo", "bar")
if err != nil {
log.Fatal(err)
}
}示例11: newKVProxyServer
func newKVProxyServer(endpoints []string, t *testing.T) *kvproxyTestServer {
cfg := clientv3.Config{
Endpoints: endpoints,
DialTimeout: 5 * time.Second,
}
client, err := clientv3.New(cfg)
if err != nil {
t.Fatal(err)
}
kvp := NewKvProxy(client)
kvts := &kvproxyTestServer{
kp: kvp,
}
var opts []grpc.ServerOption
kvts.server = grpc.NewServer(opts...)
pb.RegisterKVServer(kvts.server, kvts.kp)
kvts.l, err = net.Listen("tcp", "127.0.0.1:0")
if err != nil {
t.Fatal(err)
}
go kvts.server.Serve(kvts.l)
return kvts
}示例12: newETCD3Storage
func newETCD3Storage(c storagebackend.Config) (storage.Interface, DestroyFunc, error) {
tlsInfo := transport.TLSInfo{
CertFile: c.CertFile,
KeyFile: c.KeyFile,
CAFile: c.CAFile,
}
tlsConfig, err := tlsInfo.ClientConfig()
if err != nil {
return nil, nil, err
}
// NOTE: Client relies on nil tlsConfig
// for non-secure connections, update the implicit variable
if len(c.CertFile) == 0 && len(c.KeyFile) == 0 && len(c.CAFile) == 0 {
tlsConfig = nil
}
cfg := clientv3.Config{
Endpoints: c.ServerList,
TLS: tlsConfig,
}
client, err := clientv3.New(cfg)
if err != nil {
return nil, nil, err
}
ctx, cancel := context.WithCancel(context.Background())
etcd3.StartCompactor(ctx, client)
destroyFunc := func() {
cancel()
client.Close()
}
if c.Quorum {
return etcd3.New(client, c.Codec, c.Prefix), destroyFunc, nil
}
return etcd3.NewWithNoQuorumRead(client, c.Codec, c.Prefix), destroyFunc, nil
}示例13: newEtcdClient
func newEtcdClient(theEndpoints, certFile, keyFile, caFile string) (*clientv3.Client, error) {
// Log the etcd endpoint for debugging purposes
logger.Infof("ETCD Endpoints: %s", theEndpoints)
// ETCD config
etcdConfig := clientv3.Config{
Endpoints: strings.Split(theEndpoints, ","),
DialTimeout: dialTimeout,
}
// Optionally, configure TLS transport
if certFile != "" && keyFile != "" && caFile != "" {
// Load client cert
tlsInfo := transport.TLSInfo{
CertFile: certFile,
KeyFile: keyFile,
TrustedCAFile: caFile,
}
// Setup HTTPS client
tlsConfig, err := tlsInfo.ClientConfig()
if err != nil {
return nil, err
}
// Add TLS config
etcdConfig.TLS = tlsConfig
}
// ETCD client
return clientv3.New(etcdConfig)
}示例14: ExampleLease_create
func ExampleLease_create() {
cli, err := clientv3.New(clientv3.Config{
Endpoints: endpoints,
DialTimeout: dialTimeout,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close()
kvc := clientv3.NewKV(cli)
lapi := clientv3.NewLease(cli)
defer lapi.Close()
// minimum lease TTL is 5-second
resp, err := lapi.Create(context.TODO(), 5)
if err != nil {
log.Fatal(err)
}
// after 5 seconds, the key 'foo' will be removed
_, err = kvc.Put(context.TODO(), "foo", "bar", clientv3.WithLease(lease.LeaseID(resp.ID)))
if err != nil {
log.Fatal(err)
}
}示例15: main
func main() {
cli, err := clientv3.New(clientv3.Config{
Endpoints: []string{"127.0.0.1"},
DialTimeout: 5 * time.Second,
})
if err != nil {
log.Fatal(err)
}
defer cli.Close()
_, err = cli.Put(context.TODO(), "foo", "bar")
if err != nil {
log.Fatal(err)
}
ctx, cancel := context.WithTimeout(context.Background(), time.Second)
resp, err := cli.Get(ctx, "foo")
cancel()
if err != nil {
log.Fatal(err)
}
for _, ev := range resp.Kvs {
fmt.Printf("%s : %s\n", ev.Key, ev.Value)
}
}