Docker debian image for benchmarks

docker/debian-bench/Dockerfile

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+FROM i386/debian
+
+ENV DEBIAN_FRONTEND noninteractive
+
+RUN apt-get update && \
+    apt-get --yes --no-install-recommends install \
+        linux-image-4.9.0-6-686 systemd \
+        gcc make libc6-dev \
+        wget \
+        file vim \
+    && \
+    apt-get --yes clean && \
+    chsh -s /bin/bash && \
+    echo "root:root" | chpasswd && \
+    rm /etc/motd /etc/issue && \
+    cd /root/ && \
+    wget http://www.math.utah.edu/~mayer/linux/nbench-byte-2.2.3.tar.gz && \
+    tar xfv nbench-byte-2.2.3.tar.gz && \
+    rm nbench-byte-2.2.3.tar.gz && \
+    mv nbench-byte-2.2.3 bench && \
+    cd bench && \
+    make
+
+COPY getty-noclear.conf /etc/systemd/system/getty@tty1.service.d/noclear.conf
+COPY getty-override.conf /etc/systemd/system/getty@tty1.service.d/override.conf

docker/debian-bench/build-container.sh

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+set -e
+
+docker build . --rm --tag i386/debian-bench
+docker rm debian-bench || true
+docker create -t -i --name debian-bench i386/debian-bench bash

docker/debian-bench/create-disk-from-container.sh

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+#!/bin/env bash
+set -ve
+
+if [ $(id -u) != "0" ]
+then
+    echo "Please run as root"
+    exit 1
+fi
+
+OUTFILE=$(dirname "$0")/../../build/debian-bench.img
+CONTAINER_NAME=debian-bench
+
+dd if=/dev/zero of=$OUTFILE bs=1k count=600k
+
+(
+echo o # Create a new empty DOS partition table
+echo n # Add a new partition
+echo p # Primary partition
+echo 1 # Partition number
+echo 2048 # First sector
+echo   # Last sector (Accept default: varies)
+echo a # make bootable
+echo w # Write changes
+echo q # quit
+) | fdisk $OUTFILE
+
+# 1048576 is 2048 (first sector) * 512 (sector size)
+mkfs.ext4 -F -E offset=1048576 $OUTFILE
+
+kpartx -a -v $OUTFILE
+function finish_kpartx {
+    kpartx -d $OUTFILE
+}
+trap finish_kpartx EXIT
+
+# XXX: Assumes loop0
+
+mount /dev/mapper/loop0p1 /mnt
+function finish_mount {
+    umount /mnt
+    finish_kpartx
+}
+trap finish_mount EXIT
+
+docker export $CONTAINER_NAME | tar -xvC /mnt/
+
+grub-install --recheck --target=i386-pc --locales= --themes= --fonts= --root-directory /mnt/ /dev/loop0
+
+cat > /mnt/boot/grub/grub.cfg << 'EOF'
+set root='hd0' # XXX: I believe this has no significance, but is required to exist by grub
+
+set timeout_style=menu
+set timeout=0
+
+menuentry 'Linux' {
+    #insmod ext2
+    #insmod gzio
+    #insmod fat
+    set root='hd0,msdos1'
+
+    echo      'Loading Linux linux ...'
+    linux    /vmlinuz rw root=/dev/sda1 rootfstype=ext4 init=/bin/systemd
+    #linux    /boot/vmlinuz debug verbose rw root=/dev/sda1 rootfstype=ext4
+    #linux     /boot/vmlinuz-virthardened nosplash debug verbose rw root=/dev/sda1 rootfstype=ext4
+
+    echo      'Loading initial ramdisk ...'
+    initrd   /initrd.img
+    #initrd   /boot/initramfs-vanilla
+    #initrd    /boot/initramfs-virthardened
+}
+EOF
+
+echo $OUTFILE created.

docker/debian-bench/getty-noclear.conf

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+[Service]
+TTYVTDisallocate=no

docker/debian-bench/getty-override.conf

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+[Service]
+ExecStart=
+ExecStart=-/sbin/agetty --autologin root --noissue --noclear %I 38400 $TERM