miragesdk: simplify the build by using multi-stage Dockerfile

Signed-off-by: Thomas Gazagnaire <thomas@gazagnaire.org>

projects/miragesdk/src/Dockerfile

@@ -0,0 +1,88 @@
+### Capnp compiler
+
+FROM alpine:3.5 as capnp
+
+RUN mkdir -p /src
+RUN apk update && apk add autoconf automake libtool linux-headers git g++ make
+
+RUN cd /src && git clone https://github.com/sandstorm-io/capnproto.git
+WORKDIR /src/capnproto/c++
+RUN ./setup-autotools.sh
+RUN autoreconf -i
+RUN ./configure
+RUN make -j6 check
+RUN make install
+RUN which capnp
+
+
+### SDK
+
+FROM ocaml/opam:alpine-3.5_ocaml-4.04.0 as sdk
+RUN git -C /home/opam/opam-repository pull && opam update -u
+
+COPY --from=capnp /usr/local/bin/capnp /usr/local/bin/
+COPY --from=capnp /usr/local/lib/libcapnpc-0.6-dev.so /usr/local/lib/
+COPY --from=capnp /usr/local/lib/libcapnp-0.6-dev.so /usr/local/lib/
+COPY --from=capnp /usr/local/lib/libkj-0.6-dev.so /usr/local/lib/
+
+RUN sudo mkdir -p /src
+USER opam
+WORKDIR /src
+
+RUN opam pin add jbuilder 1.0+beta7 -n
+
+RUN opam depext -uiy cstruct lwt logs irmin-git rawlink tuntap astring rresult \
+    mirage-flow-lwt mirage-channel-lwt io-page decompress capnp
+
+RUN opam list
+
+COPY ./sdk /src/
+COPY ./sdk.opam /src/
+RUN sudo chown opam -R /src
+
+RUN opam config exec -- jbuilder build -p sdk @install
+RUN opam config exec -- jbuilder install sdk
+
+### Privileged Container
+
+FROM sdk as priv
+
+RUN opam pin add tuntap 1.0.0 -n
+RUN opam depext -iy bos cmdliner
+
+RUN opam list
+
+COPY ./dhcp-client /src/dhcp-client
+RUN sudo chown opam -R /src
+
+RUN opam config exec -- jbuilder build dhcp-client/main.exe
+RUN sudo mkdir -p /bin
+RUN sudo cp /src/_build/default/dhcp-client/main.exe /bin/dhcp-client
+
+
+### Calf Container
+
+FROM sdk as calf
+
+RUN opam pin add charrua-client https://github.com/yomimono/charrua-client.git#state-halfway -n
+RUN opam pin add mirage-net-fd 0.2.0 -n
+RUN opam depext -iy mirage-net-fd charrua-client lwt mirage-types-lwt cmdliner
+
+RUN opam list
+
+COPY ./dhcp-client-calf/unikernel.ml /src/dhcp-client-calf/
+COPY ./dhcp-client-calf/jbuild /src/dhcp-client-calf/
+RUN sudo chown opam -R /src
+
+RUN opam config exec -- jbuilder build dhcp-client-calf/unikernel.exe
+RUN sudo mkdir -p /bin/calf
+RUN sudo cp /src/_build/default/dhcp-client-calf/unikernel.exe /bin/calf/dhcp-client-calf
+
+### Final build
+
+FROM scratch
+
+COPY --from=priv /bin /
+COPY --from=calf /bin /
+COPY dhcp-client-calf/config.json /calf/
+CMD ["/dhcp-client", "-vv"]