Dockerfile

# Building...

FROM golang:alpine as server-builder

WORKDIR /elections

RUN apk update && apk upgrade && \
    apk add --no-cache bash git openssh build-base
ADD . .
RUN go version
RUN go get -d -v && \
    go test ./... && \
    go build

# Running...

FROM alpine

WORKDIR /app

RUN apk update && apk add ca-certificates libcap mailcap
# ca-certificates for autocert (Let's Encrypt) and mailcap to get mime types for downloaded documents

COPY --from=server-builder /elections/elections /app
COPY --from=server-builder /elections/dev_certificates /app/dev_certificates
COPY --from=server-builder /elections/web /app/web
COPY --from=server-builder /elections/configs /app/configs

RUN setcap cap_net_bind_service=+ep elections

ENTRYPOINT [ "./elections"]