Docker et documentation

Dockerfile

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+FROM golang:1.14 AS builder
+
+RUN mkdir /build
+WORKDIR /build
+
+# Copy the code from the host and compile it
+COPY . .
+
+RUN go build
+
+RUN mkdir res
+COPY sounds res/sounds
+
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix nocgo -o /app .
+
+# We use Alpine for it's ca-certificates needed by http lib
+FROM alpine:latest
+RUN apk add --no-cache ca-certificates apache2-utils
+COPY --from=builder /app ./
+COPY --from=builder /build/res ./
+
+
+ENTRYPOINT ["./app"]