jmroh: chore(build): upgrade etcd to fix tests with golang 1.15

Author: jaemyeongroh

LICENSE_OF_DEPENDENCIES.md

@@ -3,6 +3,7 @@
 - github.com/NYTimes/gziphandler [APACHE-2.0](https://github.com/NYTimes/gziphandler/blob/master/LICENSE.md)
 - github.com/sirupsen/logrus [MIT](https://github.com/Sirupsen/logrus/blob/master/LICENSE)
 - github.com/etcd-io/bbolt [MIT](https://github.com/etcd-io/bbolt/blob/master/LICENSE)
+- github.com/etcd-io/etcd [MIT](https://github.com/etcd-io/etcd/blob/master/LICENSE)
 - github.com/bouk/httprouter [BSD](https://github.com/bouk/httprouter/blob/master/LICENSE)
 - github.com/dgrijalva/jwt-go [MIT](https://github.com/dgrijalva/jwt-go/blob/master/LICENSE)
 - github.com/elazarl/go-bindata-assetfs [BSD](https://github.com/elazarl/go-bindata-assetfs/blob/master/LICENSE)

backend/go.mod

@@ -6,13 +6,7 @@ require (
 	github.com/ajg/form v1.5.1 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bouk/httprouter v0.0.0-20160817010721-ee8b3818a7f5
-	github.com/coreos/bbolt v1.3.3 // indirect
-	github.com/coreos/etcd v3.3.22+incompatible
-	github.com/coreos/go-semver v0.3.0 // indirect
-	github.com/coreos/go-systemd v0.0.0-20190620071333-e64a0ec8b42a // indirect
-	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible
-	github.com/dustin/go-humanize v1.0.0 // indirect
 	github.com/elazarl/go-bindata-assetfs v1.0.0
 	github.com/fasthttp-contrib/websocket v0.0.0-20160511215533-1f3b11f56072 // indirect
 	github.com/fatih/structs v1.1.0 // indirect
@@ -26,16 +20,13 @@ require (
 	github.com/google/uuid v1.1.1
 	github.com/gorilla/websocket v1.4.2
 	github.com/grpc-ecosystem/go-grpc-middleware v1.2.0 // indirect
-	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.14.6 // indirect
 	github.com/imkira/go-interpol v1.1.0 // indirect
 	github.com/influxdata/flux v0.65.0
 	github.com/influxdata/influxdb v1.1.5
 	github.com/influxdata/kapacitor v1.5.3
 	github.com/influxdata/usage-client v0.0.0-20160829180054-6d3895376368
 	github.com/jessevdk/go-flags v1.4.0
-	github.com/jonboulle/clockwork v0.1.0 // indirect
-	github.com/json-iterator/go v1.1.7 // indirect
 	github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88 // indirect
 	github.com/lestrrat-go/jwx v0.9.0
 	github.com/mattn/go-colorable v0.1.6 // indirect
@@ -46,23 +37,21 @@ require (
 	github.com/sergi/go-diff v1.1.0
 	github.com/sirupsen/logrus v1.6.0
 	github.com/smartystreets/goconvey v1.6.4 // indirect
-	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/stretchr/testify v1.4.0
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20200427203606-3cfed13b9966 // indirect
 	github.com/valyala/fasthttp v1.15.1 // indirect
 	github.com/xeipuuv/gojsonschema v1.2.0 // indirect
-	github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2 // indirect
 	github.com/yalp/jsonpath v0.0.0-20180802001716-5cc68e5049a0 // indirect
 	github.com/yudai/gojsondiff v1.0.0 // indirect
 	github.com/yudai/golcs v0.0.0-20170316035057-ecda9a501e82 // indirect
 	github.com/yudai/pp v2.0.1+incompatible // indirect
 	go.etcd.io/bbolt v1.3.5
+	go.etcd.io/etcd v0.5.0-alpha.5.0.20201125193152-8a03d2e9614b
 	go.uber.org/multierr v1.5.0 // indirect
 	golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5
 	golang.org/x/net v0.0.0-20200602114024-627f9648deb9
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
 	google.golang.org/api v0.15.0
-	sigs.k8s.io/yaml v1.1.0 // indirect
 )
 
 replace github.com/coreos/go-systemd => github.com/coreos/go-systemd/v22 v22.0.0

backend/kv/etcd/client.go

@@ -8,12 +8,12 @@ import (
 	"math/rand"
 	"time"
 
-	"github.com/coreos/etcd/clientv3"
-	"github.com/coreos/etcd/clientv3/concurrency"
 	cloudhub "github.com/snetsystems/cloudhub/backend"
 	"github.com/snetsystems/cloudhub/backend/kv"
 	"github.com/snetsystems/cloudhub/backend/mocks"
 	"github.com/snetsystems/cloudhub/backend/snowflake"
+	"go.etcd.io/etcd/clientv3"
+	"go.etcd.io/etcd/clientv3/concurrency"
 )
 
 const (

backend/kv/etcd/client_test.go

@@ -7,11 +7,11 @@ import (
 	"testing"
 	"time"
 
-	"github.com/coreos/etcd/embed"
 	cloudhub "github.com/snetsystems/cloudhub/backend"
 	"github.com/snetsystems/cloudhub/backend/kv"
 	"github.com/snetsystems/cloudhub/backend/mocks"
 	"github.com/stretchr/testify/require"
+	"go.etcd.io/etcd/embed"
 )
 
 func TestNewClient(t *testing.T) {