docker: fix builds, remove extra distros, add ci builds (#11621)

* fix docker builds/remove extra builds/add ci builds
* preinstall vim in CI builder images
* simplify & streamline docker resources
* restore os-container-mapping.yaml file

share/spack/docker/centos-7.dockerfile

@@ -0,0 +1,76 @@
+FROM centos:7
+MAINTAINER Spack Maintainers <maintainers@spack.io>
+
+ENV DOCKERFILE_BASE=centos            \
+    DOCKERFILE_DISTRO=centos          \
+    DOCKERFILE_DISTRO_VERSION=7       \
+    SPACK_ROOT=/opt/spack             \
+    FORCE_UNSAFE_CONFIGURE=1          \
+    DEBIAN_FRONTEND=noninteractive    \
+    CURRENTLY_BUILDING_DOCKER_IMAGE=1 \
+    container=docker
+
+COPY bin   $SPACK_ROOT/bin
+COPY etc   $SPACK_ROOT/etc
+COPY lib   $SPACK_ROOT/lib
+COPY share $SPACK_ROOT/share
+COPY var   $SPACK_ROOT/var
+RUN mkdir -p $SPACK_ROOT/opt/spack
+
+RUN yum update -y                                             \
+ && yum install -y epel-release                               \
+ && yum update -y                                             \
+ && yum --enablerepo epel groupinstall -y "Development Tools" \
+ && yum --enablerepo epel install -y                          \
+        curl           findutils gcc-c++    gcc               \
+        gcc-gfortran   git       gnupg2     hostname          \
+        iproute        Lmod      make       patch             \
+        openssh-server python    python-pip tcl               \
+        unzip          which                                  \
+ && pip install boto3                                         \
+ && rm -rf /var/cache/yum                                     \
+ && yum clean all
+
+RUN ( echo ". /usr/share/lmod/lmod/init/bash"                       \
+ &&   echo ". \$SPACK_ROOT/share/spack/setup-env.sh"                \
+ &&   echo "if [ \"\$CURRENTLY_BUILDING_DOCKER_IMAGE\" '!=' '1' ]"  \
+ &&   echo "then"                                                   \
+ &&   echo "  . \$SPACK_ROOT/share/spack/spack-completion.bash"     \
+ &&   echo "fi"                                                   ) \
+       >> /etc/profile.d/spack.sh                                   \
+ && ( echo "f=\"\$SPACK_ROOT/share/spack/docker/handle-ssh.sh\""    \
+ &&   echo "if [ -f \"\$f\" ]"                                      \
+ &&   echo "then"                                                   \
+ &&   echo "  .  \"\$f\""                                           \
+ &&   echo "else"                                                   \
+ &&   cat  $SPACK_ROOT/share/spack/docker/handle-ssh.sh             \
+ &&   echo "fi"                                                   ) \
+       >> /etc/profile.d/handle-ssh.sh                              \
+ && ( echo "f=\"\$SPACK_ROOT/share/spack/docker/handle-prompt.sh\"" \
+ &&   echo "if [ -f \"\$f\" ]"                                      \
+ &&   echo "then"                                                   \
+ &&   echo "  .  \"\$f\""                                           \
+ &&   echo "else"                                                   \
+ &&   cat  $SPACK_ROOT/share/spack/docker/handle-prompt.sh          \
+ &&   echo "fi"                                                   ) \
+       >> /etc/profile.d/handle-prompt.sh                           \
+ && mkdir -p /root/.spack                                           \
+ && cp $SPACK_ROOT/share/spack/docker/modules.yaml                  \
+        /root/.spack/modules.yaml                                   \
+ && rm -rf /root/*.* /run/nologin $SPACK_ROOT/.git
+
+# [WORKAROUND]
+# https://superuser.com/questions/1241548/
+#     xubuntu-16-04-ttyname-failed-inappropriate-ioctl-for-device#1253889
+RUN [ -f ~/.profile ]                                               \
+ && sed -i 's/mesg n/( tty -s \\&\\& mesg n || true )/g' ~/.profile \
+ || true
+
+WORKDIR /root
+SHELL ["/bin/bash", "-l", "-c"]
+
+# TODO: add a command to Spack that (re)creates the package cache
+RUN spack spec hdf5+mpi
+
+ENTRYPOINT ["/bin/bash", "/opt/spack/share/spack/docker/entrypoint.bash"]
+CMD ["docker-shell"]