[Lxc-users] [Patch ] lxc-fedora.in

Ramez Hanna rhanna at informatiq.org
Tue May 31 12:09:13 UTC 2011


On Mon, May 30, 2011 at 11:00 AM, Daniel Lezcano <daniel.lezcano at free.fr>wrote:

> On 05/30/2011 09:32 AM, Ramez Hanna wrote:
>
>> hi,
>>
>> here is my lxc-fedora script again based on request from Daniel Lezcano
>> it has been tested to work on fedora and ubuntu hosts
>> it was tested to create fedora 14 and 13 guests (not f15 yet)
>>
>> i had submitted it as a merge request earlier to gitorious repo
>> lxc-mainline
>>
>> this script has extra args to the other scripts so it won't work directly
>> through the lxc-create -t
>> it can be modified to do that but i am not sure if i should spin off
>> several
>> ones with the release hardcoded in them like with debian/ubuntu templates
>>
>
> Yep, there is a some work to do with the ubuntu templates to factor the
> code.
> I would suggest you default to one fedora version if no release version is
> specified.
>
>
> I inlined the code in the email so it will be easier to review.
> Please in the future make sure the patch is inlined and conforming to the
> CONTRIBUTING patch submit, that is with the author, subject and
> signed-off-by.
>
>  #!/bin/bash
>>
>> #
>> # template script for generating fedora container for LXC
>> #
>>
>> #
>> # lxc: linux Container library
>>
>> # Authors:
>> # Daniel Lezcano <daniel.lezcano at free.fr>
>> # Ramez Hanna <rhanna at informatiq.org>
>>
>> # This library is free software; you can redistribute it and/or
>> # modify it under the terms of the GNU Lesser General Public
>> # License as published by the Free Software Foundation; either
>> # version 2.1 of the License, or (at your option) any later version.
>>
>> # This library is distributed in the hope that it will be useful,
>> # but WITHOUT ANY WARRANTY; without even the implied warranty of
>>  # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
>> # Lesser General Public License for more details.
>>
>> # You should have received a copy of the GNU Lesser General Public
>> # License along with this library; if not, write to the Free Software
>> # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
>>
>> #Configurations
>> arch=$(arch)
>> cache_base=/var/cache/lxc/fedora/$arch
>>
>
> shouldn't it be /var/cache/lxc/$release/$arch ?
>
no because later cache=$cache_base/$release when release is actually known

>
>  default_path=/var/lib/lxc
>> root_password=rooter
>> lxc_network_type=veth
>> lxc_network_link=virbr0
>>
>> # is this fedora?
>> [ -f /etc/fedora-release ] && is_fedora=true
>>
>> configure_fedora()
>> {
>>
>>    # disable selinux in fedora
>>    mkdir -p $rootfs_path/selinux
>>    echo 0 > $rootfs_path/selinux/enforce
>>
>>   # configure the network using the dhcp
>>    cat <<EOF > ${rootfs_path}/etc/sysconfig/network-scripts/ifcfg-eth0
>> DEVICE=eth0
>> BOOTPROTO=dhcp
>> ONBOOT=yes
>> HOSTNAME=${UTSNAME}
>> NM_CONTROLLED=no
>> TYPE=Ethernet
>> MTU=${MTU}
>> EOF
>>
>>    # set the hostname
>>    cat <<EOF > ${rootfs_path}/etc/sysconfig/network
>> NETWORKING=yes
>> HOSTNAME=${UTSNAME}
>> EOF
>>
>>    # set minimal hosts
>>    cat <<EOF > $rootfs_path/etc/hosts
>> 127.0.0.1 localhost $name
>> EOF
>>
>>    sed -i 's|.sbin.start_udev||' ${rootfs_path}/etc/rc.sysinit
>>    sed -i 's|.sbin.start_udev||' ${rootfs_path}/etc/rc.d/rc.sysinit
>>    chroot ${rootfs_path} chkconfig udev-post off
>>    chroot ${rootfs_path} chkconfig network on
>>
>>    dev_path="${rootfs_path}/dev"
>>    rm -rf $dev_path
>>    mkdir -p $dev_path
>>    mknod -m 666 ${dev_path}/null c 1 3
>>    mknod -m 666 ${dev_path}/zero c 1 5
>>    mknod -m 666 ${dev_path}/random c 1 8
>>    mknod -m 666 ${dev_path}/urandom c 1 9
>>    mkdir -m 755 ${dev_path}/pts
>>    mkdir -m 1777 ${dev_path}/shm
>>    mknod -m 666 ${dev_path}/tty c 5 0
>>    mknod -m 666 ${dev_path}/tty0 c 4 0
>>    mknod -m 666 ${dev_path}/tty1 c 4 1
>>    mknod -m 666 ${dev_path}/tty2 c 4 2
>>    mknod -m 666 ${dev_path}/tty3 c 4 3
>>    mknod -m 666 ${dev_path}/tty4 c 4 4
>>    mknod -m 600 ${dev_path}/console c 5 1
>>    mknod -m 666 ${dev_path}/full c 1 7
>>    mknod -m 600 ${dev_path}/initctl p
>>    mknod -m 666 ${dev_path}/ptmx c 5 2
>>
>>    echo "setting root passwd to $root_password"
>>    echo "root:$root_password" | chroot $rootfs_path chpasswd
>>
>>    return 0
>> }
>>
>> download_fedora()
>> {
>>
>>    # check the mini fedora was not already downloaded
>>    INSTALL_ROOT=$cache/partial
>>    mkdir -p $INSTALL_ROOT
>>    if [ $? -ne 0 ]; then
>>    echo "Failed to create '$INSTALL_ROOT' directory"
>>    return 1
>>    fi
>>
>>    # download a mini fedora into a cache
>>    echo "Downloading fedora minimal ..."
>>    YUM="yum --installroot $INSTALL_ROOT -y --nogpgcheck"
>>    PKG_LIST="yum initscripts passwd rsyslog vim-minimal dhclient chkconfig
>> rootfiles policycoreutils"
>>    RELEASE_URL="
>> http://ftp.funet.fi/pub/mirrors/fedora.redhat.com/pub/fedora/linux/releases/$release/Everything/x86_64/os/Packages/fedora-release-$release-1.noarch.rpm
>> "
>>
>
>  s/x86_64/$arch ?




>    curl $RELEASE_URL > $INSTALL_ROOT/fedora-release-$release.noarch.rpm
>>
>>    mkdir -p $INSTALL_ROOT/var/lib/rpm
>>    rpm --root $INSTALL_ROOT  --initdb
>>    rpm --root $INSTALL_ROOT -ivh
>> $INSTALL_ROOT/fedora-release-$release.noarch.rpm
>>    $YUM install $PKG_LIST
>>
>>    if [ $? -ne 0 ]; then
>>    echo "Failed to download the rootfs, aborting."
>>    return 1
>>    fi
>>
>>    mv "$INSTALL_ROOT" "$cache/rootfs"
>>    echo "Download complete."
>>
>>    return 0
>> }
>>
>> copy_fedora()
>> {
>>
>>    # make a local copy of the minifedora
>>    echo -n "Copying rootfs to $rootfs_path ..."
>>    #cp -a $cache/rootfs-$arch $rootfs_path || return 1
>>    # i prefer rsync (no reason really)
>>    mkdir -p $rootfs_path
>>    rsync -a $cache/rootfs/ $rootfs_path/
>>    return 0
>> }
>>
>> update_fedora()
>> {
>>    chroot $cache/rootfs yum -y update
>> }
>>
>> install_fedora()
>> {
>>    mkdir -p /var/lock/subsys/
>>    (
>>    flock -n -x 200
>>    if [ $? -ne 0 ]; then
>>        echo "Cache repository is busy."
>>        return 1
>>    fi
>>
>>    echo "Checking cache download in $cache/rootfs ... "
>>    if [ ! -e "$cache/rootfs" ]; then
>>        download_fedora
>>        if [ $? -ne 0 ]; then
>>        echo "Failed to download 'fedora base'"
>>        return 1
>>        fi
>>        else
>>        echo "Cache found. Updating..."
>>            update_fedora
>>        if [ $? -ne 0 ]; then
>>        echo "Failed to update 'fedora base', continuing with last known
>> good cache"
>>            else
>>                echo "Update finished"
>>        fi
>>    fi
>>
>>    echo "Copy $cache/rootfs to $rootfs_path ... "
>>    copy_fedora
>>    if [ $? -ne 0 ]; then
>>        echo "Failed to copy rootfs"
>>        return 1
>>    fi
>>
>>    return 0
>>
>>    ) 200>/var/lock/subsys/lxc
>>
>>    return $?
>> }
>>
>> copy_configuration()
>> {
>>
>>    mkdir -p $config_path
>>    cat <<EOF >> $config_path/config
>> lxc.utsname = $name
>> lxc.tty = 4
>> lxc.pts = 1024
>> lxc.rootfs = $rootfs_path
>> lxc.mount  = $config_path/fstab
>> #networking
>> lxc.network.type = $lxc_network_type
>> lxc.network.flags = up
>> lxc.network.link = $lxc_network_link
>> lxc.network.name = eth0
>> lxc.network.mtu = 1500
>> #cgroups
>> lxc.cgroup.devices.deny = a
>> # /dev/null and zero
>> lxc.cgroup.devices.allow = c 1:3 rwm
>> lxc.cgroup.devices.allow = c 1:5 rwm
>> # consoles
>> lxc.cgroup.devices.allow = c 5:1 rwm
>> lxc.cgroup.devices.allow = c 5:0 rwm
>> lxc.cgroup.devices.allow = c 4:0 rwm
>> lxc.cgroup.devices.allow = c 4:1 rwm
>> # /dev/{,u}random
>> lxc.cgroup.devices.allow = c 1:9 rwm
>> lxc.cgroup.devices.allow = c 1:8 rwm
>> lxc.cgroup.devices.allow = c 136:* rwm
>> lxc.cgroup.devices.allow = c 5:2 rwm
>> # rtc
>> lxc.cgroup.devices.allow = c 254:0 rwm
>> EOF
>>
>>    cat <<EOF > $config_path/fstab
>> proc            $rootfs_path/proc         proc    nodev,noexec,nosuid 0 0
>> devpts          $rootfs_path/dev/pts      devpts defaults 0 0
>> sysfs           $rootfs_path/sys          sysfs defaults  0 0
>> EOF
>>
>>    if [ $? -ne 0 ]; then
>>    echo "Failed to add configuration"
>>    return 1
>>    fi
>>
>>    return 0
>> }
>>
>> clean()
>> {
>>
>>    if [ ! -e $cache ]; then
>>    exit 0
>>    fi
>>
>>    # lock, so we won't purge while someone is creating a repository
>>    (
>>    flock -n -x 200
>>    if [ $? != 0 ]; then
>>        echo "Cache repository is busy."
>>        exit 1
>>    fi
>>
>>    echo -n "Purging the download cache for Fedora-$release..."
>>    rm --preserve-root --one-file-system -rf $cache && echo "Done." || exit
>> 1
>>    exit 0
>>
>>    ) 200>/var/lock/subsys/lxc
>> }
>>
>> usage()
>> {
>>    cat <<EOF
>> usage:
>>    $1 -n|--name=<container_name>
>>        [-p|--path=<path>] [-c|--clean] [-R|--release=<Fedora_release>]
>> [-A|--arch=<arch of the container>]
>>        [-h|--help]
>> Mandatory args:
>>  -n,--name         container name, used to as an identifier for that
>> container from now on
>> Optional args:
>>  -p,--path         path to where the container rootfs will be created,
>> defaults to /var/lib/lxc. The container config will go under /var/lib/lxc in
>> and case
>>  -c,--clean        clean the cache
>>  -R,--release      Fedora release for the new container. if the host is
>> Fedora, then it will defaultto the host's release.
>>  -A,--arch         NOT USED YET. Define what arch the container will be
>> [i686,x86_64]
>>  -h,--help         print this help
>> EOF
>>    return 0
>> }
>>
>> options=$(getopt -o hp:n:cR: -l help,path:,name:,clean,release: -- "$@")
>> if [ $? -ne 0 ]; then
>>    usage $(basename $0)
>>    exit 1
>> fi
>> eval set -- "$options"
>>
>> while true
>> do
>>    case "$1" in
>>    -h|--help)      usage $0 && exit 0;;
>>    -p|--path)      path=$2; shift 2;;
>>    -n|--name)      name=$2; shift 2;;
>>    -c|--clean)     clean=$2; shift 2;;
>>        -R|--release)   release=$2; shift 2;;
>>    --)             shift 1; break ;;
>>        *)              break ;;
>>    esac
>> done
>>
>> if [ ! -z "$clean" -a -z "$path" ]; then
>>    clean || exit 1
>>    exit 0
>> fi
>>
>> type yum >/dev/null 2>&1
>> if [ $? -ne 0 ]; then
>>    echo "'yum' command is missing"
>>    exit 1
>> fi
>>
>> if [ -z "$path" ]; then
>>    path=$default_path
>> fi
>>
>> if [ -z "$release" ]; then
>>    if [ "$is_fedora" ]; then
>>        release=$(cat /etc/fedora-release |awk '/^Fedora/ {print $3}')
>>    else
>>        echo "This is not a fedora host and release missing, use
>> -R|--release to specify release"
>>        exit 1
>>    fi
>> fi
>>
>> if [ "$(id -u)" != "0" ]; then
>>    echo "This script should be run as 'root'"
>>    exit 1
>> fi
>>
>> rootfs_path=$path/$name/rootfs
>> config_path=$default_path/$name
>> cache=$cache_base/$release
>>
>> if [ -f $config_path/config ]; then
>>    echo "A container with that name exists, chose a different name"
>>    exit 1
>> fi
>>
>> install_fedora
>> if [ $? -ne 0 ]; then
>>    echo "failed to install fedora"
>>    exit 1
>> fi
>>
>> configure_fedora
>> if [ $? -ne 0 ]; then
>>    echo "failed to configure fedora for a container"
>>    exit 1
>> fi
>>
>> copy_configuration
>> if [ $? -ne 0 ]; then
>>    echo "failed write configuration file"
>>    exit 1
>> fi
>>
>> if [ ! -z $clean ]; then
>>    clean || exit 1
>>    exit 0
>> fi
>> echo "container rootfs and config created"
>> echo "container is configured for lxc.network.type=veth and
>> lxc.network.link=virbr0 (which is default if you have libvirt runnig)"
>>
>
>
>
Signed-off-by: Ramez Hanna <rhanna at informatiq.org>

diff --git a/templates/lxc-fedora.in b/templates/lxc-fedora.in
index f4f19c0..0262013 100644
--- a/templates/lxc-fedora.in
+++ b/templates/lxc-fedora.in
@@ -9,6 +9,7 @@

# Authors:
# Daniel Lezcano <daniel.lezcano at free.fr>
+# Ramez Hanna <rhanna at informatiq.org>

# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
@@ -24,117 +25,106 @@
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

-DISTRO=fedora-10
+#Configurations
+arch=$(arch)
+cache_base=/var/cache/lxc/fedora/$arch
+default_path=/var/lib/lxc
+root_password=rooter
+lxc_network_type=veth
+lxc_network_link=virbr0
+
+# is this fedora?
+[ -f /etc/fedora-release ] && is_fedora=true

configure_fedora()
{
- rootfs=$1
- hostname=$2

# disable selinux in fedora
- mkdir -p $rootfs/selinux
- echo 0 > $rootfs/selinux/enforce
+ mkdir -p $rootfs_path/selinux
+ echo 0 > $rootfs_path/selinux/enforce

# configure the network using the dhcp
- cat <<EOF > $rootfs/etc/network/interfaces
-auto lo
-iface lo inet loopback
-
-auto eth0
-iface eth0 inet dhcp
+ cat <<EOF > ${rootfs_path}/etc/sysconfig/network-scripts/ifcfg-eth0
+DEVICE=eth0
+BOOTPROTO=dhcp
+ONBOOT=yes
+HOSTNAME=${UTSNAME}
+NM_CONTROLLED=no
+TYPE=Ethernet
+MTU=${MTU}
EOF

# set the hostname
- cat <<EOF > $rootfs/etc/hostname
-$hostname
-EOF
- # set minimal hosts
- cat <<EOF > $rootfs/etc/hosts
-127.0.0.1 localhost $hostname
-EOF
-
- # provide the lxc service
- cat <<EOF > $rootfs/etc/init/lxc.conf
-# fake some events needed for correct startup other services
-
-description "Container Upstart"
-
-start on startup
-
-script
- rm -rf /var/run/*.pid
- rm -rf /var/run/network/*
- /sbin/initctl emit stopped JOB=udevtrigger --no-wait
- /sbin/initctl emit started JOB=udev --no-wait
-end script
-EOF
-
- cat <<EOF > $rootfs/etc/init/console.conf
-# console - getty
-#
-# This service maintains a console on tty1 from the point the system is
-# started until it is shut down again.
-
-start on stopped rc RUNLEVEL=[2345]
-stop on runlevel [!2345]
-
-respawn
-exec /sbin/getty -8 38400 /dev/console
+ cat <<EOF > ${rootfs_path}/etc/sysconfig/network
+NETWORKING=yes
+HOSTNAME=${UTSNAME}
EOF

- cat <<EOF > $rootfs/lib/init/fstab
-# /lib/init/fstab: lxc system fstab
-none /spu spufs gid=spu,optional 0 0
-none /tmp none defaults 0 0
-none /var/lock tmpfs nodev,noexec,nosuid,showthrough 0 0
-none /lib/init/rw tmpfs mode=0755,nosuid,optional 0 0
+ # set minimal hosts
+ cat <<EOF > $rootfs_path/etc/hosts
+127.0.0.1 localhost $name
EOF

- # reconfigure some services
- if [ -z "$LANG" ]; then
- chroot $rootfs locale-gen en_US.UTF-8
- chroot $rootfs update-locale LANG=en_US.UTF-8
- else
- chroot $rootfs locale-gen $LANG
- chroot $rootfs update-locale LANG=$LANG
- fi
-
- # remove pointless services in a container
- chroot $rootfs /usr/sbin/update-rc.d -f ondemand remove
-
- chroot $rootfs /bin/bash -c 'cd /etc/init; for f in $(ls u*.conf); do mv
$f $f.orig; done'
- chroot $rootfs /bin/bash -c 'cd /etc/init; for f in $(ls tty[2-9].conf);
do mv $f $f.orig; done'
- chroot $rootfs /bin/bash -c 'cd /etc/init; for f in $(ls plymouth*.conf);
do mv $f $f.orig; done'
- chroot $rootfs /bin/bash -c 'cd /etc/init; for f in $(ls hwclock*.conf);
do mv $f $f.orig; done'
- chroot $rootfs /bin/bash -c 'cd /etc/init; for f in $(ls module*.conf); do
mv $f $f.orig; done'
-
- echo "Please change root-password !"
- echo "root:root" | chroot $rootfs chpasswd
+ sed -i 's|.sbin.start_udev||' ${rootfs_path}/etc/rc.sysinit
+ sed -i 's|.sbin.start_udev||' ${rootfs_path}/etc/rc.d/rc.sysinit
+ chroot ${rootfs_path} chkconfig udev-post off
+ chroot ${rootfs_path} chkconfig network on
+
+ dev_path="${rootfs_path}/dev"
+ rm -rf $dev_path
+ mkdir -p $dev_path
+ mknod -m 666 ${dev_path}/null c 1 3
+ mknod -m 666 ${dev_path}/zero c 1 5
+ mknod -m 666 ${dev_path}/random c 1 8
+ mknod -m 666 ${dev_path}/urandom c 1 9
+ mkdir -m 755 ${dev_path}/pts
+ mkdir -m 1777 ${dev_path}/shm
+ mknod -m 666 ${dev_path}/tty c 5 0
+ mknod -m 666 ${dev_path}/tty0 c 4 0
+ mknod -m 666 ${dev_path}/tty1 c 4 1
+ mknod -m 666 ${dev_path}/tty2 c 4 2
+ mknod -m 666 ${dev_path}/tty3 c 4 3
+ mknod -m 666 ${dev_path}/tty4 c 4 4
+ mknod -m 600 ${dev_path}/console c 5 1
+ mknod -m 666 ${dev_path}/full c 1 7
+ mknod -m 600 ${dev_path}/initctl p
+ mknod -m 666 ${dev_path}/ptmx c 5 2
+
+ echo "setting root passwd to $root_password"
+ echo "root:$root_password" | chroot $rootfs_path chpasswd

return 0
}

download_fedora()
{
- cache=$1
- arch=$2

# check the mini fedora was not already downloaded
- mkdir -p "$cache/partial-$arch"
+ INSTALL_ROOT=$cache/partial
+ mkdir -p $INSTALL_ROOT
if [ $? -ne 0 ]; then
- echo "Failed to create '$cache/partial-$arch' directory"
+ echo "Failed to create '$INSTALL_ROOT' directory"
return 1
fi

# download a mini fedora into a cache
echo "Downloading fedora minimal ..."
- febootstrap $DISTRO $cache/partial-$arch
+ YUM="yum --installroot $INSTALL_ROOT -y --nogpgcheck"
+ PKG_LIST="yum initscripts passwd rsyslog vim-minimal dhclient chkconfig
rootfiles policycoreutils"
+ RELEASE_URL="
http://ftp.funet.fi/pub/mirrors/fedora.redhat.com/pub/fedora/linux/releases/$release/Everything/$arch/os/Packages/fedora-release-$release-1.noarch.rpm
"
+ curl $RELEASE_URL > $INSTALL_ROOT/fedora-release-$release.noarch.rpm
+
+ mkdir -p $INSTALL_ROOT/var/lib/rpm
+ rpm --root $INSTALL_ROOT --initdb
+ rpm --root $INSTALL_ROOT -ivh
$INSTALL_ROOT/fedora-release-$release.noarch.rpm
+ $YUM install $PKG_LIST
+
if [ $? -ne 0 ]; then
echo "Failed to download the rootfs, aborting."
return 1
fi

- mv "$1/partial-$arch" "$1/rootfs-$arch"
+ mv "$INSTALL_ROOT" "$cache/rootfs"
echo "Download complete."

return 0
@@ -142,20 +132,23 @@ download_fedora()

copy_fedora()
{
- cache=$1
- arch=$2
- rootfs=$3

# make a local copy of the minifedora
- echo -n "Copying rootfs to $rootfs ..."
- cp -a $cache/rootfs-$arch $rootfs || return 1
+ echo -n "Copying rootfs to $rootfs_path ..."
+ #cp -a $cache/rootfs-$arch $rootfs_path || return 1
+ # i prefer rsync (no reason really)
+ mkdir -p $rootfs_path
+ rsync -a $cache/rootfs/ $rootfs_path/
return 0
}

+update_fedora()
+{
+ chroot $cache/rootfs yum -y update
+}
+
install_fedora()
{
- cache="/var/cache/lxc/fedora"
- rootfs=$1
mkdir -p /var/lock/subsys/
(
flock -n -x 200
@@ -164,19 +157,25 @@ install_fedora()
return 1
fi

- arch=$(arch)
-
- echo "Checking cache download in $cache/rootfs-$arch ... "
- if [ ! -e "$cache/rootfs-$arch" ]; then
- download_fedora $cache $arch
+ echo "Checking cache download in $cache/rootfs ... "
+ if [ ! -e "$cache/rootfs" ]; then
+ download_fedora
if [ $? -ne 0 ]; then
echo "Failed to download 'fedora base'"
return 1
fi
+ else
+ echo "Cache found. Updating..."
+ update_fedora
+ if [ $? -ne 0 ]; then
+ echo "Failed to update 'fedora base', continuing with last known good
cache"
+ else
+ echo "Update finished"
+ fi
fi

- echo "Copy $cache/rootfs-$arch to $rootfs ... "
- copy_fedora $cache $arch $rootfs
+ echo "Copy $cache/rootfs to $rootfs_path ... "
+ copy_fedora
if [ $? -ne 0 ]; then
echo "Failed to copy rootfs"
return 1
@@ -191,20 +190,21 @@ install_fedora()

copy_configuration()
{
- path=$1
- rootfs=$2
- name=$3

- cat <<EOF >> $path/config
+ mkdir -p $config_path
+ cat <<EOF >> $config_path/config
lxc.utsname = $name
-
lxc.tty = 4
lxc.pts = 1024
-lxc.rootfs = $rootfs
-lxc.mount = $path/fstab
-
-lxc.console = /dev/console
-
+lxc.rootfs = $rootfs_path
+lxc.mount = $config_path/fstab
+#networking
+lxc.network.type = $lxc_network_type
+lxc.network.flags = up
+lxc.network.link = $lxc_network_link
+lxc.network.name = eth0
+lxc.network.mtu = 1500
+#cgroups
lxc.cgroup.devices.deny = a
# /dev/null and zero
lxc.cgroup.devices.allow = c 1:3 rwm
@@ -223,10 +223,10 @@ lxc.cgroup.devices.allow = c 5:2 rwm
lxc.cgroup.devices.allow = c 254:0 rwm
EOF

- cat <<EOF > $path/fstab
-proc $rootfs/proc proc nodev,noexec,nosuid 0 0
-devpts $rootfs/dev/pts devpts defaults 0 0
-sysfs $rootfs/sys sysfs defaults 0 0
+ cat <<EOF > $config_path/fstab
+proc $rootfs_path/proc proc nodev,noexec,nosuid 0 0
+devpts $rootfs_path/dev/pts devpts defaults 0 0
+sysfs $rootfs_path/sys sysfs defaults 0 0
EOF

if [ $? -ne 0 ]; then
@@ -239,7 +239,6 @@ EOF

clean()
{
- cache="/var/cache/lxc/fedora"

if [ ! -e $cache ]; then
exit 0
@@ -253,7 +252,7 @@ clean()
exit 1
fi

- echo -n "Purging the download cache..."
+ echo -n "Purging the download cache for Fedora-$release..."
rm --preserve-root --one-file-system -rf $cache && echo "Done." || exit 1
exit 0

@@ -263,12 +262,23 @@ clean()
usage()
{
cat <<EOF
-$1 -h|--help -p|--path=<path> --clean
+usage:
+ $1 -n|--name=<container_name>
+ [-p|--path=<path>] [-c|--clean] [-R|--release=<Fedora_release>]
[-A|--arch=<arch of the container>]
+ [-h|--help]
+Mandatory args:
+ -n,--name container name, used to as an identifier for that container from
now on
+Optional args:
+ -p,--path path to where the container rootfs will be created, defaults to
/var/lib/lxc. The container config will go under /var/lib/lxc in and case
+ -c,--clean clean the cache
+ -R,--release Fedora release for the new container. if the host is Fedora,
then it will defaultto the host's release.
+ -A,--arch NOT USED YET. Define what arch the container will be
[i686,x86_64]
+ -h,--help print this help
EOF
return 0
}

-options=$(getopt -o hp:n:c -l help,path:,name:,clean -- "$@")
+options=$(getopt -o hp:n:cR: -l help,path:,name:,clean,release: -- "$@")
if [ $? -ne 0 ]; then
usage $(basename $0)
exit 1
@@ -282,6 +292,7 @@ do
-p|--path) path=$2; shift 2;;
-n|--name) name=$2; shift 2;;
-c|--clean) clean=$2; shift 2;;
+ -R|--release) release=$2; shift 2;;
--) shift 1; break ;;
*) break ;;
esac
@@ -292,15 +303,23 @@ if [ ! -z "$clean" -a -z "$path" ]; then
exit 0
fi

-type febootstrap
+type yum >/dev/null 2>&1
if [ $? -ne 0 ]; then
- echo "'febootstrap' command is missing"
+ echo "'yum' command is missing"
exit 1
fi

if [ -z "$path" ]; then
- echo "'path' parameter is required"
- exit 1
+ path=$default_path
+fi
+
+if [ -z "$release" ]; then
+ if [ "$is_fedora" ]; then
+ release=$(cat /etc/fedora-release |awk '/^Fedora/ {print $3}')
+ else
+ echo "This is not a fedora host and release missing, use -R|--release to
specify release"
+ exit 1
+ fi
fi

if [ "$(id -u)" != "0" ]; then
@@ -308,21 +327,28 @@ if [ "$(id -u)" != "0" ]; then
exit 1
fi

-rootfs=$path/rootfs
+rootfs_path=$path/$name/rootfs
+config_path=$default_path/$name
+cache=$cache_base/$release
+
+if [ -f $config_path/config ]; then
+ echo "A container with that name exists, chose a different name"
+ exit 1
+fi

-install_fedora $rootfs
+install_fedora
if [ $? -ne 0 ]; then
echo "failed to install fedora"
exit 1
fi

-configure_fedora $rootfs $name
+configure_fedora
if [ $? -ne 0 ]; then
echo "failed to configure fedora for a container"
exit 1
fi

-copy_configuration $path $rootfs $name
+copy_configuration
if [ $? -ne 0 ]; then
echo "failed write configuration file"
exit 1
@@ -332,3 +358,5 @@ if [ ! -z $clean ]; then
clean || exit 1
exit 0
fi
+echo "container rootfs and config created"
+echo "container is configured for lxc.network.type=veth and
lxc.network.link=virbr0 (which is default if you have libvirt runnig)"
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