# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+# Detect use under userns (unsupported)
+for arg in "$@"; do
+ [ "$arg" = "--" ] && break
+ if [ "$arg" = "--mapped-uid" -o "$arg" = "--mapped-gid" ]; then
+ echo "This template can't be used for unprivileged containers." 1>&2
+ echo "You may want to try the \"download\" template instead." 1>&2
+ exit 1
+ fi
+done
+
+# Make sure the usual locations are in PATH
+export PATH=$PATH:/usr/sbin:/usr/bin:/sbin:/bin
+
set -e
LOCALSTATEDIR="@LOCALSTATEDIR@"
LXC_TEMPLATE_CONFIG="@LXCTEMPLATECONFIG@"
+# Allows the lxc-cache directory to be set by environment variable
+LXC_CACHE_PATH=${LXC_CACHE_PATH:-"$LOCALSTATEDIR/cache/lxc"}
if [ -r /etc/default/lxc ]; then
. /etc/default/lxc
fi
+# Check if given path is in a btrfs partition
+is_btrfs()
+{
+ [ -e $1 -a $(stat -f -c '%T' $1) = "btrfs" ]
+}
+
+# Check if given path is the root of a btrfs subvolume
+is_btrfs_subvolume()
+{
+ [ -d $1 -a $(stat -f -c '%T' $1) = "btrfs" -a $(stat -c '%i' $1) -eq 256 ]
+}
+
+try_mksubvolume()
+{
+ path=$1
+ [ -d $path ] && return 0
+ mkdir -p $(dirname $path)
+ if which btrfs >/dev/null 2>&1 && is_btrfs $(dirname $path); then
+ btrfs subvolume create $path
+ else
+ mkdir -p $path
+ fi
+}
+
+try_rmsubvolume()
+{
+ path=$1
+ [ -d $path ] || return 0
+ if which btrfs >/dev/null 2>&1 && is_btrfs_subvolume $path; then
+ btrfs subvolume delete $path
+ else
+ rm -rf $path
+ fi
+}
+
configure_ubuntu()
{
rootfs=$1
password=$5
# configure the network using the dhcp
- cat <<EOF > $rootfs/etc/network/interfaces
+ if chroot $rootfs which netplan >/dev/null 2>&1; then
+ cat <<EOF > $rootfs/etc/netplan/10-lxc.yaml
+network:
+ ethernets:
+ eth0: {dhcp4: true}
+ version: 2
+EOF
+ else
+ cat <<EOF > $rootfs/etc/network/interfaces
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
auto eth0
iface eth0 inet dhcp
EOF
+ fi
# set the hostname
cat <<EOF > $rootfs/etc/hostname
# make sure we have the current locale defined in the container
if [ -z "$LANG" ] || echo $LANG | grep -E -q "^C(\..+)*$"; then
- chroot $rootfs locale-gen en_US.UTF-8
- chroot $rootfs update-locale LANG=en_US.UTF-8
+ chroot $rootfs locale-gen en_US.UTF-8 || true
+ chroot $rootfs update-locale LANG=en_US.UTF-8 || true
else
- chroot $rootfs locale-gen $LANG
- chroot $rootfs update-locale LANG=$LANG
+ chroot $rootfs locale-gen $LANG || true
+ chroot $rootfs update-locale LANG=$LANG || true
fi
# generate new SSH keys
- if [ -x $rootfs$LOCALSTATEDIR/lib/dpkg/info/openssh-server.postinst ]; then
+ if [ -x $rootfs/var/lib/dpkg/info/openssh-server.postinst ]; then
cat > $rootfs/usr/sbin/policy-rc.d << EOF
#!/bin/sh
exit 101
EOF
chmod +x $rootfs/usr/sbin/policy-rc.d
+ if [ -f "$rootfs/etc/init/ssh.conf" ]; then
+ mv "$rootfs/etc/init/ssh.conf" "$rootfs/etc/init/ssh.conf.disabled"
+ fi
+
rm -f $rootfs/etc/ssh/ssh_host_*key*
- mv $rootfs/etc/init/ssh.conf $rootfs/etc/init/ssh.conf.disabled
- DPKG_MAINTSCRIPT_PACKAGE=openssh DPKG_MAINTSCRIPT_NAME=postinst chroot $rootfs $LOCALSTATEDIR/lib/dpkg/info/openssh-server.postinst configure
- mv $rootfs/etc/init/ssh.conf.disabled $rootfs/etc/init/ssh.conf
+
+ DPKG_MAINTSCRIPT_PACKAGE=openssh DPKG_MAINTSCRIPT_NAME=postinst chroot $rootfs /var/lib/dpkg/info/openssh-server.postinst configure
sed -i "s/root@$(hostname)/root@$hostname/g" $rootfs/etc/ssh/ssh_host_*.pub
+ if [ -f "$rootfs/etc/init/ssh.conf.disabled" ]; then
+ mv "$rootfs/etc/init/ssh.conf.disabled" "$rootfs/etc/init/ssh.conf"
+ fi
+
rm -f $rootfs/usr/sbin/policy-rc.d
fi
write_sourceslist()
{
- # $1 => path to the rootfs
+ # $1 => path to the partial cache or the rootfs
# $2 => architecture we want to add
# $3 => whether to use the multi-arch syntax or not
if [ -n "$APT_PROXY" ]; then
- mkdir -p $rootfs/etc/apt/apt.conf.d
- cat > $rootfs/etc/apt/apt.conf.d/70proxy << EOF
+ mkdir -p $1/etc/apt/apt.conf.d
+ cat > $1/etc/apt/apt.conf.d/70proxy << EOF
Acquire::http::Proxy "$APT_PROXY" ;
EOF
fi
cleanup()
{
- rm -rf $cache/partial-$arch
- rm -rf $cache/rootfs-$arch
+ try_rmsubvolume $cache/partial-$arch
+ try_rmsubvolume $cache/rootfs-$arch
}
suggest_flush()
arch=$2
release=$3
- packages_template=${packages_template:-"ssh,vim"}
+ case $2 in
+ amd64|i386)
+ MIRROR=${MIRROR:-http://archive.ubuntu.com/ubuntu}
+ SECURITY_MIRROR=${SECURITY_MIRROR:-http://security.ubuntu.com/ubuntu}
+ ;;
+ *)
+ MIRROR=${MIRROR:-http://ports.ubuntu.com/ubuntu-ports}
+ SECURITY_MIRROR=${SECURITY_MIRROR:-http://ports.ubuntu.com/ubuntu-ports}
+ ;;
+ esac
+
+ packages_template=${packages_template:-"apt-transport-https,ssh,vim"}
+ debootstrap_parameters=
# Try to guess a list of langpacks to install
langpacks="language-pack-en"
fi
packages_template="${packages_template},$(echo $langpacks | sed 's/ /,/g')"
+ if [ -n "$variant" ]; then
+ debootstrap_parameters="$debootstrap_parameters --variant=$variant"
+ fi
+ if [ "$variant" = 'minbase' ]; then
+ packages_template="${packages_template},sudo"
+ # Newer releases use netplan, EOL releases not supported
+ case $release in
+ trusty|xenial|zesty)
+ packages_template="${packages_template},ifupdown,isc-dhcp-client"
+ ;;
+ esac
+ fi
echo "Installing packages in template: ${packages_template}"
trap cleanup EXIT SIGHUP SIGINT SIGTERM
# check the mini ubuntu was not already downloaded
- mkdir -p "$cache/partial-$arch"
+ try_mksubvolume "$cache/partial-$arch"
if [ $? -ne 0 ]; then
echo "Failed to create '$cache/partial-$arch' directory"
return 1
# download a mini ubuntu into a cache
echo "Downloading ubuntu $release minimal ..."
if [ -n "$(which qemu-debootstrap)" ]; then
- qemu-debootstrap --verbose --components=main,universe --arch=$arch --include=${packages_template} $release $cache/partial-$arch $MIRROR
+ qemu-debootstrap --verbose $debootstrap_parameters --components=main,universe --arch=$arch --include=${packages_template} $release $cache/partial-$arch $MIRROR
else
- debootstrap --verbose --components=main,universe --arch=$arch --include=${packages_template} $release $cache/partial-$arch $MIRROR
+ debootstrap --verbose $debootstrap_parameters --components=main,universe --arch=$arch --include=${packages_template} $release $cache/partial-$arch $MIRROR
fi
if [ $? -ne 0 ]; then
EOF
chmod +x "$1/partial-${arch}"/usr/sbin/policy-rc.d
- lxc-unshare -s MOUNT -- chroot "$1/partial-${arch}" apt-get dist-upgrade -y || { suggest_flush; false; }
+ (
+ cat << EOF
+ mount -t proc proc "${1}/partial-${arch}/proc"
+ chroot "${1}/partial-${arch}" apt-get dist-upgrade -y
+EOF
+ ) | lxc-unshare -s MOUNT -- sh -eu || (suggest_flush; false)
+
rm -f "$1/partial-${arch}"/usr/sbin/policy-rc.d
chroot "$1/partial-${arch}" apt-get clean
# make a local copy of the miniubuntu
echo "Copying rootfs to $rootfs ..."
- mkdir -p $rootfs
- rsync -Ha $cache/rootfs-$arch/ $rootfs/ || return 1
+ try_mksubvolume $rootfs
+ if which btrfs >/dev/null 2>&1 && is_btrfs_subvolume $cache/rootfs-$arch && is_btrfs_subvolume $rootfs; then
+ realrootfs=$(dirname $config)/rootfs
+ [ "$rootfs" = "$realrootfs" ] || umount $rootfs || return 1
+ btrfs subvolume delete $realrootfs || return 1
+ btrfs subvolume snapshot $cache/rootfs-$arch $realrootfs || return 1
+ [ "$rootfs" = "$realrootfs" ] || mount --bind $realrootfs $rootfs || return 1
+ else
+ rsync -SHaAX $cache/rootfs-$arch/ $rootfs/ || return 1
+ fi
return 0
}
rootfs=$1
release=$2
flushcache=$3
- cache="$LOCALSTATEDIR/cache/lxc/$release"
+ cache="$4/$release"
mkdir -p $LOCALSTATEDIR/lock/subsys/
(
if [ $flushcache -eq 1 ]; then
echo "Flushing cache..."
- rm -rf "$cache/partial-$arch"
- rm -rf "$cache/rootfs-$arch"
+ try_rmsubvolume $cache/partial-$arch
+ try_rmsubvolume $cache/rootfs-$arch
fi
echo "Checking cache download in $cache/rootfs-$arch ... "
# if there is exactly one veth network entry, make sure it has an
# associated hwaddr.
- nics=`grep -e '^lxc\.network\.type[ \t]*=[ \t]*veth' $path/config | wc -l`
+ nics=`grep -e '^lxc\.net\.0\.type[ \t]*=[ \t]*veth' $path/config | wc -l`
if [ $nics -eq 1 ]; then
- grep -q "^lxc.network.hwaddr" $path/config || sed -i -e "/^lxc\.network\.type[ \t]*=[ \t]*veth/a lxc.network.hwaddr = 00:16:3e:$(openssl rand -hex 3| sed 's/\(..\)/\1:/g; s/.$//')" $path/config
+ grep -q "^lxc.net.0.hwaddr" $path/config || sed -i -e "/^lxc\.net\.0\.type[ \t]*=[ \t]*veth/a lxc.net.0.hwaddr = 00:16:3e:$(openssl rand -hex 3| sed 's/\(..\)/\1:/g; s/.$//')" $path/config
fi
# Generate the configuration file
- ## Create the fstab (empty by default)
- touch $path/fstab
-
## Relocate all the network config entries
- sed -i -e "/lxc.network/{w ${path}/config-network" -e "d}" $path/config
+ sed -i -e "/lxc.net.0/{w ${path}/config-network" -e "d}" $path/config
## Relocate any other config entries
sed -i -e "/lxc./{w ${path}/config-auto" -e "d}" $path/config
echo "" >> $path/config
echo "# Container specific configuration" >> $path/config
[ -e "$path/config-auto" ] && cat $path/config-auto >> $path/config && rm $path/config-auto
- grep -q "^lxc.rootfs" $path/config 2>/dev/null || echo "lxc.rootfs = $rootfs" >> $path/config
+ grep -q "^lxc.rootfs.path" $path/config 2>/dev/null || echo "lxc.rootfs.path = $rootfs" >> $path/config
cat <<EOF >> $path/config
-lxc.mount = $path/fstab
-lxc.utsname = $name
+lxc.uts.name = $name
lxc.arch = $arch
EOF
EOF
chmod +x $rootfs/usr/sbin/policy-rc.d
- if [ ! -f $rootfs/etc/init/container-detect.conf ]; then
- # Make sure we have a working resolv.conf
- cresolvonf="${rootfs}/etc/resolv.conf"
- mv $cresolvonf ${cresolvonf}.lxcbak
- cat /etc/resolv.conf > ${cresolvonf}
-
- # for lucid, if not trimming, then add the ubuntu-virt
- # ppa and install lxcguest
- if [ $release = "lucid" ]; then
- chroot $rootfs apt-get update
- install_packages $rootfs "python-software-properties"
- chroot $rootfs add-apt-repository ppa:ubuntu-virt/ppa
- fi
-
- chroot $rootfs apt-get update
- chroot $rootfs apt-get install --force-yes -y lxcguest
-
- # Restore old resolv.conf
- rm -f ${cresolvonf}
- mv ${cresolvonf}.lxcbak ${cresolvonf}
- fi
-
# If the container isn't running a native architecture, setup multiarch
if [ -x "$(ls -1 ${rootfs}/usr/bin/qemu-*-static 2>/dev/null)" ]; then
dpkg_version=$(chroot $rootfs dpkg-query -W -f='${Version}' dpkg)
# get bind mounted to the host's /run/shm. So try to rmdir
# it, and in case that fails move it out of the way.
# NOTE: This can only be removed once 12.04 goes out of support
- if [ ! -L $rootfs/dev/shm ] && [ -d $rootfs/run/shm ] && [ -e $rootfs/dev/shm ]; then
+ if [ ! -L $rootfs/dev/shm ] && [ -e $rootfs/dev/shm ]; then
rmdir $rootfs/dev/shm 2>/dev/null || mv $rootfs/dev/shm $rootfs/dev/shm.bak
ln -s /run/shm $rootfs/dev/shm
fi
while [ ${h2:0:1} = "/" ]; do
h2=${h2#/}
done
- echo "$h $h2 none bind 0 0" >> $path/fstab
+ echo "lxc.mount.entry = $h $h2 none bind 0 0" >> $path/config
# Make sure the group exists in container
grp=`echo $pwd | cut -d: -f 4` # group number for $user
{
cat <<EOF
$1 -h|--help [-a|--arch] [-b|--bindhome <user>] [-d|--debug]
- [-F | --flush-cache] [-r|--release <release>] [ -S | --auth-key <keyfile>]
+ [-F | --flush-cache] [-r|--release <release>] [-v|--variant] [ -S | --auth-key <keyfile>]
[--rootfs <rootfs>] [--packages <packages>] [-u|--user <user>] [--password <password>]
-release: the ubuntu release (e.g. precise): defaults to host release on ubuntu, otherwise uses latest LTS
+ [--mirror <url>] [--security-mirror <url>]
+release: the ubuntu release (e.g. xenial): defaults to host release on ubuntu, otherwise uses latest LTS
+variant: debootstrap variant to use (see debootstrap(8))
bindhome: bind <user>'s home into the container
The ubuntu user will not be created, and <user> will have
sudo access.
arch: the container architecture (e.g. amd64): defaults to host arch
auth-key: SSH Public key file to inject into container
packages: list of packages to add comma separated
+mirror,security-mirror: mirror for download and /etc/apt/sources.list
EOF
return 0
}
-options=$(getopt -o a:b:hp:r:n:FS:du: -l arch:,bindhome:,help,path:,release:,name:,flush-cache,auth-key:,debug,rootfs:,packages:,user:,password:,mirror:,security-mirror: -- "$@")
+options=$(getopt -o a:b:hp:r:v:n:FS:du: -l arch:,bindhome:,help,path:,release:,variant:,name:,flush-cache,auth-key:,debug,rootfs:,packages:,user:,password:,mirror:,security-mirror: -- "$@")
if [ $? -ne 0 ]; then
usage $(basename $0)
exit 1
fi
eval set -- "$options"
-release=precise # Default to the last Ubuntu LTS release for non-Ubuntu systems
+release=xenial # Default to the last Ubuntu LTS release for non-Ubuntu systems
if [ -f /etc/lsb-release ]; then
. /etc/lsb-release
if [ "$DISTRIB_ID" = "Ubuntu" ]; then
arch="amd64"
elif [ "$arch" = "armv7l" ]; then
arch="armhf"
+ elif [ "$arch" = "aarch64" ]; then
+ arch="arm64"
+ elif [ "$arch" = "ppc64le" ]; then
+ arch="ppc64el"
fi
fi
packages=""
user="ubuntu"
password="ubuntu"
+
while true
do
case "$1" in
--password) password=$2; shift 2;;
-F|--flush-cache) flushcache=1; shift 1;;
-r|--release) release=$2; shift 2;;
+ -v|--variant) variant=$2; shift 2;;
--packages) packages=$2; shift 2;;
-b|--bindhome) bindhome=$2; shift 2;;
-a|--arch) arch=$2; shift 2;;
exit 1
fi
-if [ $hostarch = "armhf" -o $hostarch = "armel" ] && \
- [ $arch != "armhf" -a $arch != "armel" ]; then
+if [ $hostarch = "armhf" -o $hostarch = "armel" -o $hostarch = "arm64" ] && \
+ [ $arch != "armhf" -a $arch != "armel" -a $arch != "arm64" ]; then
+ echo "can't create $arch container on $hostarch"
+ exit 1
+fi
+
+if [ $arch = "arm64" ] && [ $hostarch != "arm64" ]; then
echo "can't create $arch container on $hostarch"
exit 1
fi
config="$path/config"
# if $rootfs exists here, it was passed in with --rootfs
if [ -z "$rootfs" ]; then
- if grep -q '^lxc.rootfs' $config 2>/dev/null ; then
- rootfs=$(awk -F= '/^lxc.rootfs =/{ print $2 }' $config)
+ if grep -q '^lxc.rootfs.path' $config 2>/dev/null ; then
+ rootfs=$(awk -F= '/^lxc.rootfs.path =/{ print $2 }' $config)
else
rootfs=$path/rootfs
fi
fi
-install_ubuntu $rootfs $release $flushcache
+install_ubuntu $rootfs $release $flushcache $LXC_CACHE_PATH
if [ $? -ne 0 ]; then
echo "failed to install ubuntu $release"
exit 1
projects / mirror_lxc.git / blobdiff