docker: Add a Dockerfile to run the build matrix

Author: jfsmig

README.md

@@ -2,14 +2,26 @@
 
 Gridinit is a tool used to manage non-daemon processes.
 
+## Supported Linux Distributions
+
+* Ubuntu
+  * Trusty
+  * Xenial
+  * Bionic
+  * Focal
+
+Wanna check? Then use the [build_all.sh script](./docker/build_all.sh) that
+relies on our [Dockerfile](./docker/Dockerfile) to reproduce minimal build
+environments.
+
 ## Dependencies
 
 * A toolchain made of [cmake](https://cmake.org),
   [make](https://www.gnu.org/software/make/),
   [pkg-config](https://www.freedesktop.org/wiki/Software/pkg-config/),
   [gcc](https://www.gnu.org/software/gcc/) or [clang](https://clang.llvm.org/)
 * The [GNome Library](https://developer.gnome.org/glib/stable/)
-* [Martin Sustrik's libdill](https://github.com/open-io/libdill)
+* [Martin Sustrik's libdill](https://github.com/open-io/libdill) in its OpenIO supported version.
 
 ## Build
 

docker/Dockerfile

@@ -0,0 +1,62 @@
+ARG DISTRO
+FROM ubuntu:${DISTRO} as gridinit-base
+
+LABEL maintainer "Jean-Francois SMIGIELSKI <jf.smigielski@gmail.com>"
+
+ARG DEBIAN_FRONTEND=noninteractive
+ARG DEBCONF_NONINTERACTIVE_SEEN=true
+
+RUN set -ex && \
+    echo "tzdata tzdata/Areas select Europe" > /tmp/preseed.txt; \
+    echo "tzdata tzdata/Zones/Europe select Brussels" >> /tmp/preseed.txt; \
+    debconf-set-selections /tmp/preseed.txt && \
+    apt-get update -q && \
+    apt-get install -y --no-install-recommends tzdata pkg-config software-properties-common
+
+
+#------------------------------------------------------------------------------#
+# Build and Install the exotic dependencies of gridinit
+
+FROM gridinit-base as gridinit-build-deps
+
+RUN set -ex && \
+    # Deps
+    apt-get update -q && \
+    apt-get install -y --no-install-recommends git autoconf automake autotools-dev build-essential m4 libtool && \
+    # Checkout
+    cd /tmp && \
+    git clone https://github.com/open-io/libdill.git && \
+    cd /tmp/libdill && \
+    git checkout e738f9661a5f63c219ea3a7e8627237b5fa0d9c0 && \
+    # Build
+    cd /tmp/libdill && \
+    ./autogen.sh && \
+    ./configure --prefix=/usr --enable-static --enable-shared && \
+    make -j $(nproc --ignore=2) && \
+    make install && \
+    # Cleanup
+    apt-get remove -y --purge git autoconf automake autotools-dev build-essential m4 libtool && \
+    apt-get autoremove -y --purge && \
+    rm -rf /tmp/libdill
+
+ENTRYPOINT ["/bin/bash"]
+
+
+#------------------------------------------------------------------------------#
+# Install the sources and the minimal tooling to build gridinit
+
+FROM gridinit-build-deps
+
+RUN set -ex && \
+    apt-get update -q && \
+    apt-get install -y --no-install-recommends cmake clang gcc jq libglib2.0-dev make pkg-config
+
+RUN set -ex && \
+    mkdir /tmp/src
+
+COPY main /tmp/src/main/
+COPY CMakeLists.txt /tmp/src/
+COPY docker/build.sh /tmp/
+
+CMD ["/tmp/build.sh"]
+

docker/build.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+set -ex
+
+COMPILERS=$@
+if [[ -z "${COMPILERS}" ]] ; then
+    COMPILERS="gcc clang"
+fi
+
+NPROCS=$(nproc --ignore=2)
+
+for BUILD in Debug Release RelWithDebInfo MinSizeRel ; do
+    for COMPILER in $COMPILERS ; do 
+        TAG="${BUILD}-${COMPILER}"
+        D=/tmp/build-${TAG}
+        mkdir ${D}
+        cd ${D}
+        export CC=${COMPILER}
+        cmake -DCMAKE_INSTALL_PREFIX=/tmp/install-${TAG} -DCMAKE_BUILD_TYPE=${BUILD} /tmp/src
+        make -j $NPROCS
+        make install
+    done
+done
+

docker/build_all.sh

@@ -0,0 +1,9 @@
+#!/usr/bin/env bash
+set -ex
+
+for DISTRO in trusty xenial bionic focal ; do
+    docker build --build-arg DISTRO=${DISTRO} --tag gridinit-test-${DISTRO} -f docker/Dockerfile .
+    docker run gridinit-test-${DISTRO}
+done
+
+# Unsupported: ubuntu:{yakkety,zesty,artful,cosmic,disco,eoan,groovy}