Add Dockerfile and docker-compose example (#11)

Dockerfile

@@ -0,0 +1,37 @@
+FROM alpine:latest as build
+
+ENV LANG     en_US.UTF-8
+ENV LANGUAGE en_US:en
+ENV LC_ALL   en_US.UTF-8
+
+WORKDIR /tmp/haskell
+RUN apk update && \
+    apk upgrade --available && \
+    apk add \
+        build-base make cmake gcc gmp curl xz perl cpio coreutils \
+        binutils-gold tar gzip unzip \
+        libc-dev musl-dev ncurses-dev gmp-dev zlib-dev expat-dev libffi-dev \
+        gd-dev postgresql-dev linux-headers
+
+RUN curl https://gitlab.haskell.org/haskell/ghcup-hs/raw/master/bootstrap-haskell -sSf | BOOTSTRAP_HASKELL_NONINTERACTIVE=1 sh && \
+    /root/.ghcup/bin/ghcup set
+ENV PATH "$PATH:/root/.cabal/bin:/root/.ghcup/bin"
+
+WORKDIR /tmp/myriad
+COPY . .
+RUN cabal new-install
+
+RUN mkdir -p /opt/myriad && \
+    cp -L /root/.cabal/bin/myriad /opt/myriad && \
+    mv languages /opt/myriad && \
+    mv config.example.yaml /opt/myriad/config.yaml
+
+
+FROM alpine:latest
+RUN apk add --no-cache docker-cli gmp
+WORKDIR /opt/myriad
+COPY --from=build /opt/myriad .
+
+EXPOSE 8081
+
+CMD ["./myriad"]