FROM debian

RUN mkdir /go
COPY knockr.go /go/knockr.go

RUN apt-get update && apt-get install -y git golang-go
RUN GOPATH=/go go get github.com/mkideal/cli

ENV destination=
ENV gatewayport=80
ENV whitelistport=8080
ENV timeout=600

WORKDIR /go
CMD GOPATH=/go go run knockr.go --Destination ${destination} --WhitelistPort ${whitelistport} --GatewayPort ${gatewayport} --Timeout ${timeout}