etcd can set log config

default log level is info, which will log o log of unused logs

go.mod

@@ -38,7 +38,7 @@ require (
 	github.com/oxtoacart/bpool v0.0.0-20190530202638-03653db5a59c
 	github.com/pkg/errors v0.8.1
 	github.com/stretchr/testify v1.4.0
-	go.uber.org/zap v1.12.0 // indirect
+	go.uber.org/zap v1.12.0
 	golang.org/x/crypto v0.0.0-20191108234033-bd318be0434a
 	golang.org/x/net v0.0.0-20191109021931-daa7c04131f5
 	google.golang.org/grpc v1.25.1

registry/etcd/etcd.go

@@ -18,6 +18,7 @@ import (
 	"github.com/micro/go-micro/registry"
 	"github.com/micro/go-micro/util/log"
 	hash "github.com/mitchellh/hashstructure"
+	"go.uber.org/zap"
 )
 
 var (
@@ -73,6 +74,10 @@ func configure(e *etcdRegistry, opts ...registry.Option) error {
 			config.Username = u.Username
 			config.Password = u.Password
 		}
+		cfg, ok := e.options.Context.Value(logConfigKey{}).(*zap.Config)
+		if ok && cfg != nil {
+			config.LogConfig = cfg
+		}
 	}
 
 	var cAddrs []string

registry/etcd/options.go

@@ -4,10 +4,13 @@ import (
 	"context"
 
 	"github.com/micro/go-micro/registry"
+	"go.uber.org/zap"
 )
 
 type authKey struct{}
 
+type logConfigKey struct{}
+
 type authCreds struct {
 	Username string
 	Password string
@@ -22,3 +25,13 @@ func Auth(username, password string) registry.Option {
 		o.Context = context.WithValue(o.Context, authKey{}, &authCreds{Username: username, Password: password})
 	}
 }
+
+// LogConfig allows you to set etcd log config
+func LogConfig(config *zap.Config) registry.Option {
+	return func(o *registry.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, authKey{}, config)
+	}
+}