fix dockerfile

Dockerfile

@@ -2,16 +2,16 @@
 FROM golang:1.15-alpine3.12 AS builder
 RUN apk add --no-cache git ca-certificates gcc libc-dev pkgconfig
 # gcc is for github.com/mattn/go-sqlite3
-RUN go get -u github.com/c9s/goose/cmd/goose
 # ADD . $GOPATH/src/github.com/c9s/bbgo
-# WORKDIR $GOPATH/src/github.com/c9s/bbgo
 
 WORKDIR $GOPATH/src/github.com/c9s/bbgo
 ARG GO_MOD_CACHE
 ENV WORKDIR=$GOPATH/src/github.com/c9s/bbgo
 ENV GOPATH_ORIG=$GOPATH
 ENV GOPATH=${GO_MOD_CACHE:+$WORKDIR/$GO_MOD_CACHE}
 ENV GOPATH=${GOPATH:-$GOPATH_ORIG}
+ENV CGO_ENABLED=1
+RUN go get github.com/mattn/go-sqlite3
 ADD . .
 RUN go build -o $GOPATH_ORIG/bin/bbgo ./cmd/bbgo
 
@@ -22,7 +22,6 @@ FROM alpine:3.12
 RUN mkdir /app
 
 WORKDIR /app
-COPY --from=builder /go/bin/goose /usr/local/bin
 COPY --from=builder /go/bin/bbgo /usr/local/bin
 
 ENTRYPOINT ["/usr/local/bin/bbgo"]