add tikv to persist

fix google#69

go.mod

@@ -4,17 +4,42 @@ go 1.14
 
 require (
 	github.com/GoogleCloudPlatform/cloudsql-proxy v0.0.0-20200501161113-5e9e23d7cb91
+	github.com/coreos/etcd v3.3.20+incompatible // indirect
+	github.com/coreos/go-semver v0.3.0 // indirect
+	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf // indirect
+	github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f // indirect
+	github.com/cznic/mathutil v0.0.0-20181122101859-297441e03548 // indirect
 	github.com/davecgh/go-spew v1.1.1
 	github.com/dustin/go-humanize v1.0.0
 	github.com/fatih/color v1.9.0 // indirect
 	github.com/go-sql-driver/mysql v1.5.0
+	github.com/golang/snappy v0.0.1 // indirect
 	github.com/google/go-github/v31 v31.0.0
+	github.com/google/uuid v1.1.1 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.2.0 // indirect
+	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/hokaccha/go-prettyjson v0.0.0-20190818114111-108c894c2c0e
 	github.com/imjasonmiller/godice v0.1.2
 	github.com/jmoiron/sqlx v1.2.0
+	github.com/juju/errors v0.0.0-20200330140219-3fe23663418f // indirect
 	github.com/lib/pq v1.3.0
+	github.com/opentracing/opentracing-go v1.1.0 // indirect
 	github.com/patrickmn/go-cache v2.1.0+incompatible
+	github.com/pingcap/goleveldb v0.0.0-20191226122134-f82aafb29989 // indirect
+	github.com/pingcap/kvproto v0.0.0-20200428135407-0f5ffe459677 // indirect
+	github.com/pingcap/tidb v2.0.11+incompatible // indirect
+	github.com/pingcap/tipb v0.0.0-20200417094153-7316d94df1ee // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/prometheus/client_golang v1.6.0 // indirect
+	github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
+	github.com/sirupsen/logrus v1.6.0 // indirect
+	github.com/spaolacci/murmur3 v1.1.0 // indirect
+	github.com/twinj/uuid v1.0.0 // indirect
+	github.com/uber/jaeger-client-go v2.23.1+incompatible // indirect
+	github.com/uber/jaeger-lib v2.2.0+incompatible // indirect
+	go.uber.org/atomic v1.6.0 // indirect
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
+	gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
 	gopkg.in/yaml.v2 v2.2.8
 	k8s.io/klog v1.0.0
 	k8s.io/klog/v2 v2.0.0