Compile Golang project with sub packages and vendor folder. Golang + golang:alpine + Package Oriented Design

Dockerfile

FROM golang:1.9-alpine

RUN mkdir /app
WORKDIR /app

RUN mkdir -p /go/src/github.com/your_user_name/your_app # Mimics your Golang workspace. Take note that $GOPATH = /go
ADD . /go/src/github.com/your_user_name/your_app # Copies all the source code of the package(your_app) including the vendor/

RUN go build github.com/your_user_name/your_app/cmd/serviced # here's where my main() resides

RUN mv /go/src/github.com/your_user_name/your_app/cmd/serviced/config.yml /app && \
    rm -rf /go/src # Deletes all source code after compilation. In this case, I moved first the config file into the WORKDIR where the binary resides

ENV CONFIG_PATH /app # Assuming that the binary(app) will read the config file in this path
CMD ["./serviced"]