Browse code
Added script for building Base Docker CRUX images
Docker-DCO-1.1-Signed-off-by: James Mills <prologic@shortcircuit.net.au> (github: therealprologic)
James Mills authored on 2014/01/22 23:48:47Showing 1 changed files
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+#!/usr/bin/env bash |
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+# Generate a minimal filesystem for CRUX/Linux and load it into the local |
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+# docker as "cruxlinux" |
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+# requires root and the crux iso (http://crux.nu) |
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+ |
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+set -e |
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+ |
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+die () {
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+ echo >&2 "$@" |
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+ exit 1 |
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+} |
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+ |
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+[ "$#" -eq 1 ] || die "1 argument(s) required, $# provided. Usage: ./mkimage-crux.sh /path/to/iso" |
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+ |
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+ISO=${1}
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+ |
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+ROOTFS=$(mktemp -d /tmp/rootfs-crux-XXXXXXXXXX) |
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+CRUX=$(mktemp -d /tmp/crux-XXXXXXXXXX) |
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+TMP=$(mktemp -d /tmp/XXXXXXXXXX) |
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+ |
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+VERSION=$(basename --suffix=.iso $ISO | sed 's/[^0-9.]*\([0-9.]*\).*/\1/') |
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+ |
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+# Mount the ISO |
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+mount -o ro,loop $ISO $CRUX |
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+ |
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+# Extract pkgutils |
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+tar -C $TMP -xf $CRUX/tools/pkgutils#*.pkg.tar.gz |
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+ |
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+# Put pkgadd in the $PATH |
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+export PATH="$TMP/usr/bin:$PATH" |
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+ |
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+# Install core packages |
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+mkdir -p $ROOTFS/var/lib/pkg |
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+touch $ROOTFS/var/lib/pkg/db |
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+for pkg in $CRUX/crux/core/*; do |
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+ pkgadd -r $ROOTFS $pkg |
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+done |
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+ |
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+# Remove agetty and inittab config |
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+if (grep agetty ${ROOTFS}/etc/inittab 2>&1 > /dev/null); then
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+ echo "Removing agetty from /etc/inittab ..." |
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+ chroot ${ROOTFS} sed -i -e "/agetty/d" /etc/inittab
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+ chroot ${ROOTFS} sed -i -e "/shutdown/d" /etc/inittab
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+ chroot ${ROOTFS} sed -i -e "/^$/N;/^\n$/d" /etc/inittab
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+fi |
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+ |
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+# Remove kernel source |
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+rm -rf $ROOTFS/usr/src/* |
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+ |
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+# udev doesn't work in containers, rebuild /dev |
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+DEV=$ROOTFS/dev |
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+rm -rf $DEV |
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+mkdir -p $DEV |
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+mknod -m 666 $DEV/null c 1 3 |
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+mknod -m 666 $DEV/zero c 1 5 |
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+mknod -m 666 $DEV/random c 1 8 |
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+mknod -m 666 $DEV/urandom c 1 9 |
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+mkdir -m 755 $DEV/pts |
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+mkdir -m 1777 $DEV/shm |
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+mknod -m 666 $DEV/tty c 5 0 |
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+mknod -m 600 $DEV/console c 5 1 |
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+mknod -m 666 $DEV/tty0 c 4 0 |
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+mknod -m 666 $DEV/full c 1 7 |
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+mknod -m 600 $DEV/initctl p |
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+mknod -m 666 $DEV/ptmx c 5 2 |
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+ |
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+IMAGE_ID=$(tar --numeric-owner -C $ROOTFS -c . | docker import - crux:$VERSION) |
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+docker tag $IMAGE_ID crux:latest |
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+docker run -i -t crux echo Success. |
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+ |
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+# Cleanup |
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+umount $CRUX |
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+rm -rf $ROOTFS |
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+rm -rf $CRUX |
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+rm -rf $TMP |