[Lxc-users] [PATCH 1/2] working fedora template
Daniel Lezcano
daniel.lezcano at free.fr
Tue Aug 9 14:16:26 UTC 2011
On 08/08/2011 10:54 AM, Ramez Hanna wrote:
> >From c117fc7051971a9166cf5ab1f85cb6331b91a78c Mon Sep 17 00:00:00 2001
> From: InformatiQ <rhanna at informatiq.org>
> Date: Wed, 20 Apr 2011 23:15:51 +0300
> Subject: [PATCH 1/2] working fedora template
>
> signed-off-by: Ramez Hanna <rhanna at informatiq.org>
I was not able to apply your patches. It seems there is some spurious CR
in the inlined patch.
Did you copy-paste the diff in the email ?
> ---
> templates/lxc-fedora.in | 264 ++++++++++++++++++++++++++---------------------
> 1 files changed, 146 insertions(+), 118 deletions(-)
>
> diff --git a/templates/lxc-fedora.in b/templates/lxc-fedora.in
> index f4f19c0..e26d73a 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/x86_64/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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