[Dev] add Docker files for framac/frama-c images

devel_tools/docker/README.md

+Docker images for Frama-C
+=========================
+
+- To build a new image (slim, without Frama-C sources nor tests):
+
+        cd <tag>
+        docker build . --target base -t framac/frama-c:<tag>
+
+- To run an interactive shell:
+
+        docker run -it framac/frama-c:<tag>
+
+- To push to Docker Hub (requires access to the `framac/frama-c` repository):
+
+        docker push framac/frama-c:<tag>
+
+- To build an image containing Frama-C sources (downloaded from the .tar.gz, in
+  directory `/root`):
+
+        cd <tag>
+        docker build . --build-arg with_source=yes \
+          -t framac/frama-c:<tag>-with-source
+
+- To run Frama-C tests (and remove unnecessary image later):
+
+        cd <tag>
+        docker build . --build-arg with_source=yes --build-arg with_test=yes \
+          -t framac/frama-c:<tag>-with-test
+        docker image rm framac/frama-c:<tag>-with-test

devel_tools/docker/frama-c.21.0/Dockerfile

+FROM debian:sid as base
+
+RUN apt update
+RUN apt install opam -y
+RUN opam init --disable-sandboxing --compiler=ocaml-base-compiler.4.07.1 -y
+
+# "RUN eval $(opam env)" does not work, so we manually set its variables
+ENV OPAM_SWITCH_PREFIX "/root/.opam/ocaml-base-compiler.4.07.1"
+ENV CAML_LD_LIBRARY_PATH "/root/.opam/ocaml-base-compiler.4.07.1/lib/stublibs:/root/.opam/ocaml-base-compiler.4.07.1/lib/ocaml/stublibs:/root/.opam/ocaml-base-compiler.4.07.1/lib/ocaml"
+ENV OCAML_TOPLEVEL_PATH "/root/.opam/ocaml-base-compiler.4.07.1/lib/toplevel"
+ENV MANPATH "$MANPATH:/root/.opam/ocaml-base-compiler.4.07.1/man"
+ENV PATH "/root/.opam/ocaml-base-compiler.4.07.1/bin:$PATH"
+
+RUN opam update -y
+RUN opam install depext -y
+
+# Install packages from reference configuration
+RUN opam depext --install -y \
+    alt-ergo.2.0.0 \
+    apron.v0.9.12 \
+    conf-graphviz.0.1 \
+    mlgmpidl.1.2.12 \
+    ocamlfind.1.8.0 \
+    ocamlgraph.1.8.8 \
+    ppx_deriving_yojson.3.5.2 \
+    why3.1.3.1 \
+    yojson.1.7.0 \
+    zarith.1.9.1 \
+    zmq.5.1.3 \
+    --verbose # intentionally left as last line in this RUN command
+RUN why3 config --full-config
+
+# with_source: keep Frama-C sources
+ARG with_source=no
+
+RUN cd /root && \
+    wget http://frama-c.com/download/frama-c-21.0-Scandium.tar.gz && \
+    tar xvf frama-c-*.tar.gz && \
+    (cd frama-c-* && \
+        ./configure --disable-gui && \
+        make -j && \
+        make install \
+    ) && \
+    rm -f frama-c-*.tar.gz && \
+    [ "${with_source}" != "no" ] || rm -rf frama-c-*
+
+# with_test: run Frama-C tests; requires "with_source=yes"
+ARG with_test=no
+
+RUN if [ "${with_test}" != "no" ]; then \
+       opam depext --install -y \
+           conf-python-3.1.0.0 \
+           conf-time.1 \
+           --verbose \
+        && \
+        cd /root/frama-c-* && \
+        make tests; \
+    fi

devel_tools/docker/frama-c.21.1/Dockerfile

+FROM debian:sid as base
+
+RUN apt update
+RUN apt install opam -y
+RUN opam init --disable-sandboxing --compiler=ocaml-base-compiler.4.07.1 -y
+
+# "RUN eval $(opam env)" does not work, so we manually set its variables
+ENV OPAM_SWITCH_PREFIX "/root/.opam/ocaml-base-compiler.4.07.1"
+ENV CAML_LD_LIBRARY_PATH "/root/.opam/ocaml-base-compiler.4.07.1/lib/stublibs:/root/.opam/ocaml-base-compiler.4.07.1/lib/ocaml/stublibs:/root/.opam/ocaml-base-compiler.4.07.1/lib/ocaml"
+ENV OCAML_TOPLEVEL_PATH "/root/.opam/ocaml-base-compiler.4.07.1/lib/toplevel"
+ENV MANPATH "$MANPATH:/root/.opam/ocaml-base-compiler.4.07.1/man"
+ENV PATH "/root/.opam/ocaml-base-compiler.4.07.1/bin:$PATH"
+
+RUN opam update -y
+RUN opam install depext -y
+
+# Install packages from reference configuration
+RUN opam depext --install -y \
+    alt-ergo.2.0.0 \
+    apron.v0.9.12 \
+    conf-graphviz.0.1 \
+    mlgmpidl.1.2.12 \
+    ocamlfind.1.8.0 \
+    ocamlgraph.1.8.8 \
+    ppx_deriving_yojson.3.5.2 \
+    why3.1.3.1 \
+    yojson.1.7.0 \
+    zarith.1.9.1 \
+    zmq.5.1.3 \
+    --verbose # intentionally left as last line in this RUN command
+RUN why3 config --full-config
+
+# with_source: keep Frama-C sources
+ARG with_source=no
+
+RUN cd /root && \
+    wget http://frama-c.com/download/frama-c-21.1-Scandium.tar.gz && \
+    tar xvf frama-c-*.tar.gz && \
+    (cd frama-c-* && \
+        ./configure --disable-gui && \
+        make -j && \
+        make install \
+    ) && \
+    rm -f frama-c-*.tar.gz && \
+    [ "${with_source}" != "no" ] || rm -rf frama-c-*
+
+# with_test: run Frama-C tests; requires "with_source=yes"
+ARG with_test=no
+
+RUN if [ "${with_test}" != "no" ]; then \
+       opam depext --install -y \
+           conf-python-3.1.0.0 \
+           conf-time.1 \
+           --verbose \
+        && \
+        cd /root/frama-c-* && \
+        make tests; \
+    fi