Add OpenIFS mpich based Dockerfile and README

OPENIFS/README.md

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+# Container Hackathon content for the OpenIFS forecasting model
+
+To create the docker image, `cd` to the directory containing the Dockerfile and run:
+
+`docker build -t <image_name> --build-arg http_proxy="$http_proxy" --build-arg ftp_proxy="$ftp_proxy" --build-arg https_proxy="$https_proxy" --build-arg no_proxy="$no_proxy" .`
+
+The above `--build-args` are needed when you are building on a machine using a proxy.

OPENIFS/mpich_based/Dockerfile

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+FROM ubuntu
+
+# Arguments required to work with the ECWMF proxy
+# Delete the ARG and the following ENV if you don't need
+ARG http_proxy
+ARG ftp_proxy
+ARG https_proxy
+ARG no_proxy
+
+# This is needed for internet access when running from ecwmf
+#ENV http_proxy=$http_proxy \
+#    ftp_proxy=$ftp_proxy \
+#    https_proxy=$https_proxy \
+#    no_proxy=$no_proxy
+
+RUN apt-get update && \
+    apt-get install -y build-essential && \
+    apt-get install -y gcc gfortran && \
+    apt-get install -y cmake perl wget && \
+    apt-get install -y python libpython-dev python-pip && \
+    pip install numpy && \
+    apt-get install -y liblapack-dev libblas-dev vim && \
+    apt-get install -y libnetcdf-dev libnetcdff-dev libnetcdf-c++4-dev && \
+    apt-get install -y vim
+
+RUN wget -q http://www.mpich.org/static/downloads/3.1.4/mpich-3.1.4.tar.gz \
+    && tar xf mpich-3.1.4.tar.gz \
+    && cd mpich-3.1.4 \
+    && ./configure --enable-fortran --enable-fast=all,O3 --prefix=/usr \
+    && make -j$(nproc) \
+    && make install \
+    && ldconfig \
+    && cd .. \
+    && rm -rf mpich-3.1.4 \
+    && rm mpich-3.1.4.tar.gz
+
+# download and install ecCodes library:
+RUN wget -q https://confluence.ecmwf.int/download/attachments/45757960/eccodes-2.10.0-Source.tar.gz && \
+    tar xf eccodes-2.10.0-Source.tar.gz
+
+RUN mkdir -p bld && \
+    cd bld && \
+    cmake ../eccodes-2.10.0-Source \
+      -DCMAKE_C_COMPILER=gcc \
+      -DCMAKE_Fortran_COMPILER=gfortran \
+      -DENABLE_NETCDF=ON \
+      -DENABLE_JPG=OFF \
+      -DENABLE_PNG=OFF \
+      -DENABLE_PYTHON=ON \
+      -DENABLE_FORTRAN=ON \
+      -DBUILD_SHARED_LIBS=BOTH && \
+    make -j$(nproc) && make check && make install && \
+    cd ../ && rm eccodes-2.10.0-Source.tar.gz && rm -rf eccodes-2.10.0-Source bld
+
+# Copy OpenIFS sources from tarball to image
+ADD oifs43r3.tar.gz /
+
+# # set OIFS env variables:
+ENV OIFS_HOME=/oifs \
+    OIFS_CYCLE=43r3 \
+    OIFS_COMP=gnu   \
+    OIFS_BUILD=opt  \
+    OIFS_FFTW=disable \
+    OIFS_XIOS=disable
+
+ENV PATH=$OIFS_HOME/fcm/bin:$PATH \
+    OIFS_GRIB_DIR="/usr/local"
+
+ENV OIFS_GRIB_LIB="-L$OIFS_GRIB_DIR/lib -leccodes_f90 -leccodes"  \
+    OIFS_GRIB_INCLUDE="-I$OIFS_GRIB_DIR/include"  \
+    GRIB_SAMPLES_PATH=$OIFS_GRIB_DIR/share/eccodes/ifs_samples/grib1_mlgrib2
+
+ENV OIFS_NETCDF_DIR=/usr \
+    OIFS_NETCDF_INCLUDE="-I/usr/include" \
+    OIFS_NETCDF_LIB="-L/usr/lib -L/usr/lib/x86_64-linux-gnu -lnetcdff -lnetcdf_c++4 -lnetcdf -Wl,-rpath,/usr/lib" \
+    OIFS_EXTRA_LIB="$OIFS_EXTRA_LIB -ldl -lz -lrt"
+
+RUN cd $OIFS_HOME/make && fcm make -v -j 4 -f oifs.cfg
+
+# This is needed so that OpenIFS finds the dynamic libraries
+ENV LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
+
+# Create a separate user to run as nonroot
+RUN groupadd --gid 1000 oifs && \
+    useradd --uid 1000 --gid oifs --shell /bin/bash --create-home oifs_user
+
+USER oifs_user
+
+WORKDIR /home/oifs_user