Docker for go dev and prod

docker-compose.yml

version: '3.4'

services:
  base:
    build:
      context: ./
      target: base
    image: base:latest
    ports:
      - "3000:3001"
    entrypoint:
      - /src/server
    env_file:
      - .env

  base_dev:
    build:
      context: ./
      target: base_dev
    image: base:dev
    ports:
      - "3000:3000"
    entrypoint:
      - gin
      - -i
      - run
      - /src/server.go
    env_file:
      - .env
    volumes:
      - "./src:/src"

Dockerfile

FROM golang:1.11 as base
ENV GOPATH "$GOPATH:/"

COPY ./src /src
WORKDIR /src

RUN go get github.com/gorilla/mux
RUN go get github.com/getsentry/raven-go
RUN go build server.go

FROM base AS base_dev
RUN go get github.com/codegangsta/gin

VOLUME /src
ENV PORT 3001