diff --git a/go.mod b/go.mod
index b2b3550..7b9ab0c 100644
--- a/go.mod
+++ b/go.mod
@@ -18,8 +18,6 @@ require (
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.12.1 // indirect
 	github.com/jonboulle/clockwork v0.1.0 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
-	github.com/modern-go/reflect2 v1.0.1 // indirect
 	github.com/prometheus/client_golang v1.2.1 // indirect
 	github.com/soheilhy/cmux v0.1.4 // indirect
 	github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 // indirect
@@ -30,6 +28,6 @@ require (
 	golang.org/x/crypto v0.0.0-20191108234033-bd318be0434a // indirect
 	golang.org/x/time v0.0.0-20191024005414-555d28b269f0 // indirect
 	google.golang.org/grpc v1.25.1 // indirect
-	gopkg.in/yaml.v2 v2.2.5
+	gopkg.in/yaml.v2 v2.2.8
 	sigs.k8s.io/yaml v1.1.0 // indirect
 )
diff --git a/go.sum b/go.sum
index 3e8b9a7..dd78c8c 100644
--- a/go.sum
+++ b/go.sum
@@ -37,7 +37,6 @@ github.com/go-kit/kit v0.9.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
 github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
 github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
-github.com/gogo/protobuf v1.1.1 h1:72R+M5VuhED/KujmZVcIquuo8mBgX4oVda//DQb3PXo=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
 github.com/gogo/protobuf v1.2.1 h1:/s5zKNz0uPFCZ5hddgPdo2TK2TVrUNMn0OOX8/aZMTE=
 github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
@@ -164,7 +163,6 @@ golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
-golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191002035440-2ec189313ef0 h1:2mqDk8w/o6UmeUCu5Qiq2y7iMf6anbx+YA8d1JFoFrs=
 golang.org/x/net v0.0.0-20191002035440-2ec189313ef0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -198,7 +196,6 @@ golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8T
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
-google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55 h1:gSJIx1SDwno+2ElGhA4+qG2zF97qiUzTM+rQ0klBOcE=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/genproto v0.0.0-20190927181202-20e1ac93f88c h1:hrpEMCZ2O7DR5gC1n2AJGVhrwiEjOi35+jxtIuZpTMo=
 google.golang.org/genproto v0.0.0-20190927181202-20e1ac93f88c/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
@@ -208,7 +205,6 @@ google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRn
 google.golang.org/grpc v1.25.1 h1:wdKvqQk7IttEw92GoRyKG2IDrUIpgpj6H6m81yfeMW0=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
 gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
@@ -216,8 +212,8 @@ gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.5 h1:ymVxjfMaHvXD8RqPRmzHHsB3VvucivSkIAvJFDI5O3c=
-gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
diff --git a/vendor/modules.txt b/vendor/modules.txt
index daa1d93..e92cac1 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -3,6 +3,7 @@ github.com/BurntSushi/toml
 # github.com/coreos/etcd v3.3.17+incompatible
 github.com/coreos/etcd/auth/authpb
 github.com/coreos/etcd/clientv3/balancer
+github.com/coreos/etcd/clientv3/balancer/connectivity
 github.com/coreos/etcd/clientv3/balancer/picker
 github.com/coreos/etcd/clientv3/balancer/resolver/endpoint
 github.com/coreos/etcd/clientv3/credentials
@@ -10,9 +11,8 @@ github.com/coreos/etcd/etcdserver/api/v3rpc/rpctypes
 github.com/coreos/etcd/etcdserver/etcdserverpb
 github.com/coreos/etcd/mvcc/mvccpb
 github.com/coreos/etcd/pkg/logutil
-github.com/coreos/etcd/pkg/types
-github.com/coreos/etcd/clientv3/balancer/connectivity
 github.com/coreos/etcd/pkg/systemd
+github.com/coreos/etcd/pkg/types
 github.com/coreos/etcd/raft
 github.com/coreos/etcd/raft/raftpb
 # github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
@@ -25,8 +25,8 @@ github.com/gogo/protobuf/proto
 github.com/gogo/protobuf/protoc-gen-gogo/descriptor
 # github.com/golang/protobuf v1.3.2
 github.com/golang/protobuf/proto
-github.com/golang/protobuf/protoc-gen-go/generator
 github.com/golang/protobuf/protoc-gen-go/descriptor
+github.com/golang/protobuf/protoc-gen-go/generator
 github.com/golang/protobuf/protoc-gen-go/generator/internal/remap
 github.com/golang/protobuf/protoc-gen-go/plugin
 github.com/golang/protobuf/ptypes
@@ -45,65 +45,61 @@ go.uber.org/multierr
 go.uber.org/tools/update-license
 # go.uber.org/zap v1.12.0
 go.uber.org/zap
-go.uber.org/zap/zapcore
-go.uber.org/zap/internal/bufferpool
 go.uber.org/zap/buffer
+go.uber.org/zap/internal/bufferpool
 go.uber.org/zap/internal/color
 go.uber.org/zap/internal/exit
+go.uber.org/zap/zapcore
 # golang.org/x/lint v0.0.0-20190930215403-16217165b5de
-golang.org/x/lint/golint
 golang.org/x/lint
+golang.org/x/lint/golint
 # golang.org/x/net v0.0.0-20191002035440-2ec189313ef0
-golang.org/x/net/trace
-golang.org/x/net/internal/timeseries
+golang.org/x/net/http/httpguts
 golang.org/x/net/http2
 golang.org/x/net/http2/hpack
-golang.org/x/net/http/httpguts
 golang.org/x/net/idna
+golang.org/x/net/internal/timeseries
+golang.org/x/net/trace
 # golang.org/x/sys v0.0.0-20191010194322-b09406accb47
 golang.org/x/sys/unix
 # golang.org/x/text v0.3.0
 golang.org/x/text/secure/bidirule
+golang.org/x/text/transform
 golang.org/x/text/unicode/bidi
 golang.org/x/text/unicode/norm
-golang.org/x/text/transform
 # golang.org/x/tools v0.0.0-20191029190741-b9c20aec41a5
 golang.org/x/tools/go/analysis
+golang.org/x/tools/go/analysis/passes/inspect
 golang.org/x/tools/go/ast/astutil
+golang.org/x/tools/go/ast/inspector
+golang.org/x/tools/go/buildutil
 golang.org/x/tools/go/gcexportdata
+golang.org/x/tools/go/internal/gcimporter
+golang.org/x/tools/go/internal/packagesdriver
 golang.org/x/tools/go/packages
 golang.org/x/tools/go/types/objectpath
-golang.org/x/tools/go/buildutil
-golang.org/x/tools/go/analysis/passes/inspect
-golang.org/x/tools/go/ast/inspector
 golang.org/x/tools/go/types/typeutil
-golang.org/x/tools/go/internal/gcimporter
-golang.org/x/tools/go/internal/packagesdriver
+golang.org/x/tools/internal/fastwalk
 golang.org/x/tools/internal/gopathwalk
 golang.org/x/tools/internal/semver
 golang.org/x/tools/internal/span
-golang.org/x/tools/internal/fastwalk
 # google.golang.org/genproto v0.0.0-20190927181202-20e1ac93f88c
 google.golang.org/genproto/googleapis/api/annotations
 google.golang.org/genproto/googleapis/rpc/status
 # google.golang.org/grpc v1.25.1
 google.golang.org/grpc
-google.golang.org/grpc/codes
-google.golang.org/grpc/credentials
-google.golang.org/grpc/grpclog
-google.golang.org/grpc/keepalive
-google.golang.org/grpc/metadata
-google.golang.org/grpc/status
-google.golang.org/grpc/balancer
-google.golang.org/grpc/connectivity
-google.golang.org/grpc/resolver
-google.golang.org/grpc/resolver/dns
-google.golang.org/grpc/resolver/passthrough
 google.golang.org/grpc/backoff
+google.golang.org/grpc/balancer
 google.golang.org/grpc/balancer/base
 google.golang.org/grpc/balancer/roundrobin
+google.golang.org/grpc/binarylog/grpc_binarylog_v1
+google.golang.org/grpc/codes
+google.golang.org/grpc/connectivity
+google.golang.org/grpc/credentials
+google.golang.org/grpc/credentials/internal
 google.golang.org/grpc/encoding
 google.golang.org/grpc/encoding/proto
+google.golang.org/grpc/grpclog
 google.golang.org/grpc/internal
 google.golang.org/grpc/internal/backoff
 google.golang.org/grpc/internal/balancerload
@@ -115,40 +111,44 @@ google.golang.org/grpc/internal/grpcrand
 google.golang.org/grpc/internal/grpcsync
 google.golang.org/grpc/internal/resolver/dns
 google.golang.org/grpc/internal/resolver/passthrough
+google.golang.org/grpc/internal/syscall
 google.golang.org/grpc/internal/transport
+google.golang.org/grpc/keepalive
+google.golang.org/grpc/metadata
 google.golang.org/grpc/naming
 google.golang.org/grpc/peer
+google.golang.org/grpc/resolver
+google.golang.org/grpc/resolver/dns
+google.golang.org/grpc/resolver/passthrough
 google.golang.org/grpc/serviceconfig
 google.golang.org/grpc/stats
+google.golang.org/grpc/status
 google.golang.org/grpc/tap
-google.golang.org/grpc/credentials/internal
-google.golang.org/grpc/binarylog/grpc_binarylog_v1
-google.golang.org/grpc/internal/syscall
-# gopkg.in/yaml.v2 v2.2.5
+# gopkg.in/yaml.v2 v2.2.8
 gopkg.in/yaml.v2
 # honnef.co/go/tools v0.0.1-2019.2.3
+honnef.co/go/tools/arg
 honnef.co/go/tools/cmd/staticcheck
-honnef.co/go/tools/lint
-honnef.co/go/tools/lint/lintutil
-honnef.co/go/tools/simple
-honnef.co/go/tools/staticcheck
-honnef.co/go/tools/stylecheck
-honnef.co/go/tools/unused
 honnef.co/go/tools/config
+honnef.co/go/tools/deprecated
 honnef.co/go/tools/facts
+honnef.co/go/tools/functions
+honnef.co/go/tools/go/types/typeutil
 honnef.co/go/tools/internal/cache
-honnef.co/go/tools/loader
-honnef.co/go/tools/lint/lintutil/format
-honnef.co/go/tools/version
-honnef.co/go/tools/arg
 honnef.co/go/tools/internal/passes/buildssa
+honnef.co/go/tools/internal/renameio
 honnef.co/go/tools/internal/sharedcheck
+honnef.co/go/tools/lint
 honnef.co/go/tools/lint/lintdsl
-honnef.co/go/tools/deprecated
-honnef.co/go/tools/functions
+honnef.co/go/tools/lint/lintutil
+honnef.co/go/tools/lint/lintutil/format
+honnef.co/go/tools/loader
 honnef.co/go/tools/printf
+honnef.co/go/tools/simple
 honnef.co/go/tools/ssa
 honnef.co/go/tools/ssautil
+honnef.co/go/tools/staticcheck
 honnef.co/go/tools/staticcheck/vrp
-honnef.co/go/tools/go/types/typeutil
-honnef.co/go/tools/internal/renameio
+honnef.co/go/tools/stylecheck
+honnef.co/go/tools/unused
+honnef.co/go/tools/version