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Install undocker & create a bocker image from busybox; Move unshare to /usr/bin

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Peter Wilmott 2015-07-20 17:58:48 +01:00
parent e4c19fdc55
commit 402e0912df
2 changed files with 17 additions and 4 deletions
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15
Vagrantfile vendored
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@ -1,16 +1,29 @@
$script = <<SCRIPT $script = <<SCRIPT
yum install -y autoconf automake btrfs-progs gettext-devel git libtool (
rpm -i https://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm
yum install -y -q autoconf automake btrfs-progs docker gettext-devel git libtool python-pip
fallocate -l 10G ~/btrfs.img fallocate -l 10G ~/btrfs.img
mkdir /var/bocker mkdir /var/bocker
mkfs.btrfs ~/btrfs.img mkfs.btrfs ~/btrfs.img
mount -o loop ~/btrfs.img /var/bocker mount -o loop ~/btrfs.img /var/bocker
pip install git+https://github.com/larsks/undocker
systemctl start docker.service
docker pull busybox
docker save busybox | undocker -o base-image
rm -rf /vagrant/base-image
mv base-image /vagrant || true
git clone https://github.com/karelzak/util-linux.git git clone https://github.com/karelzak/util-linux.git
cd util-linux cd util-linux
git checkout tags/v2.25.2 git checkout tags/v2.25.2
./autogen.sh ./autogen.sh
./configure --without-ncurses --without-python ./configure --without-ncurses --without-python
make make
mv unshare /usr/bin/unshare
cd .. cd ..
) 2>&1
SCRIPT SCRIPT
Vagrant.configure(2) do |config| Vagrant.configure(2) do |config|

6
bocker
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@ -3,7 +3,7 @@ set -o errexit -o nounset -o pipefail; shopt -s nullglob
btrfs_path='/var/bocker'; btrfs_path='/var/bocker';
basename=$(which basename); btrfs=$(which btrfs); cat=$(which cat); basename=$(which basename); btrfs=$(which btrfs); cat=$(which cat);
mount=$(which mount); umount=$(which umount); chroot=$(which chroot) unshare=$(which unshare); umount=$(which umount); chroot=$(which chroot)
function CHECK_VOLUME() { function CHECK_VOLUME() {
if $btrfs subvolume list "$btrfs_path" | grep -qw "$1"; then if $btrfs subvolume list "$btrfs_path" | grep -qw "$1"; then
@ -50,8 +50,8 @@ CHECK_VOLUME "$1"
uuid="ps_$(uuidgen)" uuid="ps_$(uuidgen)"
$btrfs subvolume snapshot "$btrfs_path/$1" "$btrfs_path/$uuid" > /dev/null $btrfs subvolume snapshot "$btrfs_path/$1" "$btrfs_path/$uuid" > /dev/null
echo "$2" > "$btrfs_path/$uuid/$uuid.cmd" echo "$2" > "$btrfs_path/$uuid/$uuid.cmd"
./util-linux/unshare -fp --mount-proc "$chroot" "$btrfs_path/$uuid" \ "$unshare" -fp --mount-proc "$chroot" "$btrfs_path/$uuid" \
/bin/bash -c "/bin/mount -t proc proc /proc && /bin/$2" \ /bin/sh -c "/bin/mount -t proc proc /proc && /bin/$2" \
2>&1 | tee "$btrfs_path/$uuid/$uuid.log" 2>&1 | tee "$btrfs_path/$uuid/$uuid.log"
$umount "$btrfs_path/$uuid/proc" $umount "$btrfs_path/$uuid/proc"
} }