Update etcd dependency

- github.com/coreos/etcd v3.2.11+incompatible
+ github.com/coreos/etcd v3.3.13+incompatible

Between v3.2.11 and v3.3.13 there have been a number of changes to the
way the etcd client handles failed server connections, notably a
significant refactor of the client balancer which appear to have fixed
several issues when communicating with etcd through a TCP L4 load
balancer.

go.mod

@@ -7,8 +7,8 @@ require (
 	github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da // indirect
 	github.com/boltdb/bolt v1.3.1 // indirect
 	github.com/cockroachdb/cmux v0.0.0-20170110192607-30d10be49292 // indirect
-	github.com/coreos/bbolt v1.3.0 // indirect
-	github.com/coreos/etcd v3.2.11+incompatible
+	github.com/coreos/bbolt v1.3.2 // indirect
+	github.com/coreos/etcd v3.3.13+incompatible
 	github.com/coreos/go-semver v0.0.0-20150725033620-d043ae190b32 // indirect
 	github.com/coreos/go-systemd v0.0.0-20181004131557-b14d3eb023cc // indirect
 	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
@@ -31,7 +31,9 @@ require (
 	github.com/google/gofuzz v0.0.0-20170612174753-24818f796faf // indirect
 	github.com/googleapis/gnostic v0.1.0 // indirect
 	github.com/gophercloud/gophercloud v0.0.0-20190410012400-2c55d17f707c // indirect
+	github.com/gorilla/websocket v1.4.0 // indirect
 	github.com/gregjones/httpcache v0.0.0-20171119193500-2bcd89a1743f // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.8.5 // indirect
 	github.com/hashicorp/consul v1.0.2
@@ -48,7 +50,7 @@ require (
 	github.com/imdario/mergo v0.0.0-20141206190957-6633656539c1 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/jonboulle/clockwork v0.1.0 // indirect
-	github.com/json-iterator/go v0.0.0-20180128090011-28452fcdec4e // indirect
+	github.com/json-iterator/go v1.1.6 // indirect
 	github.com/juju/ratelimit v1.0.1 // indirect
 	github.com/kballard/go-shellquote v0.0.0-20140719004912-e5c918b80c17 // indirect
 	github.com/lib/pq v0.0.0-20160831222520-50761b0867bd
@@ -59,17 +61,21 @@ require (
 	github.com/mitchellh/go-homedir v0.0.0-20161203194507-b8bc1bf76747 // indirect
 	github.com/mitchellh/go-testing-interface v1.0.0 // indirect
 	github.com/mitchellh/reflectwalk v0.0.0-20170726202117-63d60e9d0dbc // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c // indirect
 	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
 	github.com/prometheus/client_golang v0.9.3-0.20190127221311-3c4408c8b829
 	github.com/russross/blackfriday v1.5.1 // indirect
 	github.com/satori/go.uuid v1.1.0
 	github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 // indirect
 	github.com/sgotti/gexpect v0.0.0-20161123102107-0afc6c19f50a
+	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/sorintlab/pollon v0.0.0-20171012155008-1475a2b45268
 	github.com/sorintlab/tcpkeepalive v0.2.0 // indirect
 	github.com/spf13/cobra v0.0.0-20171204131325-de2d9c4eca8f
 	github.com/spf13/pflag v1.0.0
+	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
 	github.com/ugorji/go v0.0.0-20151028022000-f1f1a805ed36 // indirect
 	github.com/xiang90/probing v0.0.0-20160813154853-07dd2e8dfe18 // indirect
 	go.uber.org/atomic v1.3.1 // indirect

go.sum

@@ -21,8 +21,12 @@ github.com/cockroachdb/cmux v0.0.0-20170110192607-30d10be49292 h1:dzj1/xcivGjNPw
 github.com/cockroachdb/cmux v0.0.0-20170110192607-30d10be49292/go.mod h1:qRiX68mZX1lGBkTWyp3CLcenw9I94W2dLeRvMzcn9N4=
 github.com/coreos/bbolt v1.3.0 h1:HIgH5xUWXT914HCI671AxuTTqjj64UOFr7pHn48LUTI=
 github.com/coreos/bbolt v1.3.0/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
+github.com/coreos/bbolt v1.3.2 h1:wZwiHHUieZCquLkDL0B8UhzreNWsPHooDAG3q34zk0s=
+github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
 github.com/coreos/etcd v3.2.11+incompatible h1:S3HFWk+1nkDWvYPJnWNNqi/dWnXJa3S3zQgFOycHbC8=
 github.com/coreos/etcd v3.2.11+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
+github.com/coreos/etcd v3.3.13+incompatible h1:8F3hqu9fGYLBifCmRCJsicFqDx/D68Rt3q1JMazcgBQ=
+github.com/coreos/etcd v3.3.13+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
 github.com/coreos/go-semver v0.0.0-20150725033620-d043ae190b32 h1:xJaHWjQvN5ZJj3p1xdeiDQd6W0wv50Gdd6bzSZcNKvk=
 github.com/coreos/go-semver v0.0.0-20150725033620-d043ae190b32/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
 github.com/coreos/go-systemd v0.0.0-20181004131557-b14d3eb023cc h1:EDHXXD9U9N6r96eKHqu2Q4Zstkhlyv7RGN4Gwew+jVk=
@@ -77,8 +81,12 @@ github.com/googleapis/gnostic v0.1.0 h1:rVsPeBmXbYv4If/cumu1AzZPwV58q433hvONV1UE
 github.com/googleapis/gnostic v0.1.0/go.mod h1:sJBsCZ4ayReDTBIg8b9dl28c5xFWyhBTVRp3pOg5EKY=
 github.com/gophercloud/gophercloud v0.0.0-20190410012400-2c55d17f707c h1:vGQ5eWkG5WkBdfGR+7J5yF2a6clwcUMM1r9fmRHPBVI=
 github.com/gophercloud/gophercloud v0.0.0-20190410012400-2c55d17f707c/go.mod h1:vxM41WHh5uqHVBMZHzuwNOHh8XEoIEcSTewFxm1c5g8=
+github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
+github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
 github.com/gregjones/httpcache v0.0.0-20171119193500-2bcd89a1743f h1:kOkUP6rcVVqC+KlKKENKtgfFfJyDySYhqL9srXooghY=
 github.com/gregjones/httpcache v0.0.0-20171119193500-2bcd89a1743f/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
+github.com/grpc-ecosystem/go-grpc-middleware v1.0.0 h1:Iju5GlWwrvL6UBg4zJJt3btmonfrMlCDdsejg4CZE7c=
+github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 h1:Ovs26xHkKqVztRpIrF/92BcuyuQ/YW4NSIpoGtfXNho=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.8.5 h1:2+KSC78XiO6Qy0hIjfc1OD9H+hsaJdJlb8Kqsd41CTE=
@@ -119,6 +127,8 @@ github.com/jonboulle/clockwork v0.1.0 h1:VKV+ZcuP6l3yW9doeqz6ziZGgcynBVQO+obU0+0
 github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/json-iterator/go v0.0.0-20180128090011-28452fcdec4e h1:Dt5zqkK0PFBHYLNt+8OFuZRwDV4mOJWQA2FdLhd1rqU=
 github.com/json-iterator/go v0.0.0-20180128090011-28452fcdec4e/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
+github.com/json-iterator/go v1.1.6 h1:MrUvLMLTMxbqFJ9kzlvat/rYZqZnW3u4wkLzWTaFwKs=
+github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/juju/ratelimit v1.0.1 h1:+7AIFJVQ0EQgq/K9+0Krm7m530Du7tIz0METWzN0RgY=
 github.com/juju/ratelimit v1.0.1/go.mod h1:qapgC/Gy+xNh9UxzV13HGGl/6UXNN+ct+vwSgWNm/qk=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
@@ -150,6 +160,10 @@ github.com/mitchellh/go-testing-interface v1.0.0 h1:fzU/JVNcaqHQEcVFAKeR41fkiLdI
 github.com/mitchellh/go-testing-interface v1.0.0/go.mod h1:kRemZodwjscx+RGhAo8eIhFbs2+BFgRtFPeD/KE+zxI=
 github.com/mitchellh/reflectwalk v0.0.0-20170726202117-63d60e9d0dbc h1:gqYjvctjtX4GHzgfutJxZpvZ7XhGwQLGR5BASwhpO2o=
 github.com/mitchellh/reflectwalk v0.0.0-20170726202117-63d60e9d0dbc/go.mod h1:mSTlrgnPZtwu0c4WaC2kGObEpuNDbx0jmZXqmk4esnw=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd h1:TRLaZ9cD/w8PVh93nsPXa1VrQ6jlwL5oN8l14QlcNfg=
+github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
+github.com/modern-go/reflect2 v1.0.1 h1:9f412s+6RmYXLWZSEzVVgPGK7C2PphHj5RJrvfx9AWI=
+github.com/modern-go/reflect2 v1.0.1/go.mod h1:bx2lNnkwVCuqBIxFjflWJWanXIb3RllmbCylyMrvgv0=
 github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c h1:Lgl0gzECD8GnQ5QCWA8o6BtfL6mDH5rQgM4/fX3avOs=
 github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c/go.mod h1:lzWF7FIEvWOWxwDKqyGYQf6ZUaNfKdP144TG7ZOy1lc=
@@ -179,7 +193,10 @@ github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 h1:nn5Wsu0esKSJiIVhscUt
 github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529/go.mod h1:DxrIzT+xaE7yg65j358z/aeFdxmN0P9QXhEzd20vsDc=
 github.com/sgotti/gexpect v0.0.0-20161123102107-0afc6c19f50a h1:u7WP9TGHJIkJoi/dRDhvYPSthMIdUQPDETiZET/Utl8=
 github.com/sgotti/gexpect v0.0.0-20161123102107-0afc6c19f50a/go.mod h1:HvB0+YQff1QGS1nct9E3/J8wo8s/EVjq+VXrJSDlQEY=
+github.com/sirupsen/logrus v1.2.0 h1:juTguoYk5qI21pwyTXY3B3Y5cOTH3ZUyZCg1v/mihuo=
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
+github.com/soheilhy/cmux v0.1.4 h1:0HKaf1o97UwFjHH9o5XsHUOF+tqmdA7KEzXLpiyaw0E=
+github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=
 github.com/sorintlab/pollon v0.0.0-20171012155008-1475a2b45268 h1:IqFfYK9ozzEfP3xDuiCJDBEGCO3WCdpD/3hOceEMBV0=
 github.com/sorintlab/pollon v0.0.0-20171012155008-1475a2b45268/go.mod h1:On6PSL7BwjhL6yX3wicnJgMilDMpXgih3FG3W6hJ/wU=
 github.com/sorintlab/tcpkeepalive v0.2.0 h1:qHYOzlXMtGIhIUIaDFS1KdygDPSnJZWE6kxI9/abvG4=
@@ -192,6 +209,8 @@ github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 h1:LnC5Kc/wtumK+WB441p7ynQJzVuNRJiqddSIE3IlSEQ=
+github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/ugorji/go v0.0.0-20151028022000-f1f1a805ed36 h1:vKlfv8sKDcjM5WIkcAzl5CZkKB8pppsrdmqczMTuapo=
 github.com/ugorji/go v0.0.0-20151028022000-f1f1a805ed36/go.mod h1:hnLbHMwcvSihnDhEfx2/BzKp2xb0Y+ErdfYcrs9tkJQ=
 github.com/xiang90/probing v0.0.0-20160813154853-07dd2e8dfe18 h1:MPPkRncZLN9Kh4MEFmbnK4h3BD7AUmskWv2+EeZJCCs=