Initial structure

Dockerfile

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+FROM golang:1.14-alpine as dev
+
+WORKDIR /go/src/overpass
+COPY ./go.mod .
+COPY ./go.sum .
+
+RUN go mod download
+
+COPY . .
+RUN go install github.com/dustinpianalto/overpass/...
+
+CMD [ "go", "run", "cmd/overpass/main.go"]
+
+from alpine
+
+WORKDIR /bin
+
+COPY --from=dev /go/bin/overpass ./overpass
+
+CMD [ "overpass" ]