mirror of
https://git.proxmox.com/git/mirror_lxc
synced 2025-06-03 22:50:24 +00:00
ed34a67d01
OL6 uses upstart init and needs a handler for the SIGPWR that lxc-shutdown sends it so that a container can shut down cleanly. Signed-off-by: Dwight Engen <dwight.engen@oracle.com> Acked-by: Stéphane Graber <stgraber@ubuntu.com>
648 lines
26 KiB
Bash
648 lines
26 KiB
Bash
#!/bin/bash
|
|
#
|
|
# Template script for generating Oracle Enterprise Linux container for LXC
|
|
# based on lxc-fedora, lxc-ubuntu
|
|
#
|
|
# Copyright © 2011 Wim Coekaerts <wim.coekaerts@oracle.com>
|
|
# Copyright © 2012 Dwight Engen <dwight.engen@oracle.com>
|
|
#
|
|
# Modified for Oracle Linux 5
|
|
# Wim Coekaerts <wim.coekaerts@oracle.com>
|
|
#
|
|
# Modified for Oracle Linux 6, combined OL5,6 into one template script
|
|
# Dwight Engen <dwight.engen@oracle.com>
|
|
#
|
|
# 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
|
|
#
|
|
|
|
# use virbr0 that is setup by default by libvirtd
|
|
lxc_network_type=veth
|
|
lxc_network_link=virbr0
|
|
|
|
die()
|
|
{
|
|
echo "failed: $1"
|
|
exit 1
|
|
}
|
|
|
|
is_btrfs_subvolume()
|
|
{
|
|
if which btrfs >/dev/null 2>&1 && \
|
|
btrfs subvolume list "$1" >/dev/null 2>&1; then
|
|
return 0
|
|
fi
|
|
return 1
|
|
}
|
|
|
|
# fix up the container_rootfs
|
|
container_rootfs_configure()
|
|
{
|
|
echo "Configuring container for Oracle Linux $container_release_major.$container_release_minor"
|
|
|
|
# "disable" selinux. init in OL 5 honors /etc/selinux/config. note that
|
|
# this doesnt actually disable it if it's enabled in the host, since
|
|
# libselinux::is_selinux_enabled() in the guest will check
|
|
# /proc/filesystems and see selinuxfs, thus reporting that it is on
|
|
# (ie. check the output of sestatus in the guest)
|
|
mkdir -p $container_rootfs/selinux
|
|
echo 0 > $container_rootfs/selinux/enforce
|
|
if [ -e $container_rootfs/etc/selinux/config ]; then
|
|
sed -i 's|SELINUX=enforcing|SELINUX=disabled|' $container_rootfs/etc/selinux/config
|
|
else
|
|
echo "SELINUX=disabled" >$container_rootfs/etc/selinux/config
|
|
fi
|
|
sed -i 's|session[ ]*required[ ]*pam_selinux.so[ ]*close|#session required pam_selinux.so close|' $container_rootfs/etc/pam.d/login
|
|
sed -i 's|session[ ]*required[ ]*pam_selinux.so[ ]*open|#session required pam_selinux.so open|' $container_rootfs/etc/pam.d/login
|
|
sed -i 's|session[ ]*required[ ]*pam_loginuid.so|#session required pam_loginuid.so|' $container_rootfs/etc/pam.d/login
|
|
|
|
|
|
# configure the network to use dhcp. we set DHCP_HOSTNAME so the guest
|
|
# will report its name and be resolv'able by the hosts dnsmasq
|
|
touch $container_rootfs/etc/resolv.conf
|
|
cat <<EOF > $container_rootfs/etc/sysconfig/network-scripts/ifcfg-eth0
|
|
DEVICE=eth0
|
|
BOOTPROTO=dhcp
|
|
ONBOOT=yes
|
|
HOSTNAME=$name
|
|
DHCP_HOSTNAME=$name
|
|
NM_CONTROLLED=no
|
|
TYPE=Ethernet
|
|
EOF
|
|
|
|
# set the hostname
|
|
cat <<EOF > $container_rootfs/etc/sysconfig/network
|
|
NETWORKING=yes
|
|
NETWORKING_IPV6=no
|
|
HOSTNAME=$name
|
|
EOF
|
|
|
|
# disable interactive ovmd asking questions
|
|
if [ -f $container_rootfs/etc/sysconfig/ovmd ]; then
|
|
sed -i 's|INITIAL_CONFIG=yes|INITIAL_CONFIG=no|' $container_rootfs/etc/sysconfig/ovmd
|
|
fi
|
|
|
|
# set minimal hosts
|
|
echo "127.0.0.1 localhost $name" > $container_rootfs/etc/hosts
|
|
|
|
# disable ipv6
|
|
echo "blacklist ipv6" >>$container_rootfs/etc/modprobe.d/blacklist.conf
|
|
echo "blacklist net-pf-10" >>$container_rootfs/etc/modprobe.d/blacklist.conf
|
|
rm -f $container_rootfs/etc/sysconfig/network-scripts/init.ipv6-global
|
|
|
|
# this file has to exist for libvirt/Virtual machine monitor to boot the container
|
|
touch $container_rootfs/etc/mtab
|
|
|
|
# don't put devpts in here, it will already be mounted for us by lxc/libvirt
|
|
cat <<EOF > $container_rootfs/etc/fstab
|
|
proc /proc proc nodev,noexec,nosuid 0 0
|
|
sysfs /sys sysfs defaults 0 0
|
|
EOF
|
|
|
|
# remove module stuff for iptables it just shows errors that are not
|
|
# relevant in a container
|
|
if [ -f "$container_rootfs/etc/sysconfig/iptables-config" ]; then
|
|
sed -i 's|IPTABLES_MODULES=".*|IPTABLES_MODULES=""|' $container_rootfs/etc/sysconfig/iptables-config
|
|
sed -i 's|IPTABLES_MODULES_UNLOAD=".*|IPTABLES_MODULES_UNLOAD="no"|' $container_rootfs/etc/sysconfig/iptables-config
|
|
fi
|
|
|
|
# disable readahead in the container
|
|
if [ $container_release_major = "6" -a -e $container_rootfs/etc/sysconfig/readahead ]; then
|
|
rm -f $container_rootfs/etc/init/readahead-collector.conf
|
|
rm -f $container_rootfs/etc/init/readahead-disable-services.conf
|
|
sed -i 's|READAHEAD="yes"|READAHEAD="no"|' $container_rootfs/etc/sysconfig/readahead
|
|
fi
|
|
|
|
if [ $container_release_major = "4" ]; then
|
|
# enable fastboot always
|
|
sed -i 's|\[ -f /fastboot \]|/bin/true|' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|\[ -f /fastboot \]|/bin/true|' $container_rootfs/etc/rc.d/rc.sysinit
|
|
|
|
# dont attempt to set kernel parameters
|
|
sed -i 's|action $"Configuring kernel parameters|# LXC action $"Configuring kernel parameters|' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|action $"Configuring kernel parameters|# LXC action $"Configuring kernel parameters|' $container_rootfs/etc/rc.d/rc.sysinit
|
|
sed -i 's|action $"Setting network parameters|# LXC action $"Setting network parameters|' $container_rootfs/etc/init.d/network
|
|
sed -i 's|action $"Setting network parameters|# LXC action $"Setting network parameters|' $container_rootfs/etc/init.d/NetworkManager
|
|
fi
|
|
|
|
# disable udev in the container
|
|
if [ $container_release_major = "4" ]; then
|
|
sed -i 's|\[ -x /sbin/start_udev \]|# LXC no udev|' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|\[ -x /sbin/start_udev \]|# LXC no udev|' $container_rootfs/etc/rc.d/rc.sysinit
|
|
else
|
|
sed -i 's|.sbin.start_udev||' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|.sbin.start_udev||' $container_rootfs/etc/rc.d/rc.sysinit
|
|
fi
|
|
|
|
# disable nash raidautorun in the container since no /dev/md*
|
|
if [ $container_release_major = "4" -o $container_release_major = "5" ]; then
|
|
sed -i 's|echo "raidautorun /dev/md0"|echo ""|' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|echo "raidautorun /dev/md0"|echo ""|' $container_rootfs/etc/rc.d/rc.sysinit
|
|
fi
|
|
|
|
# prevent rc.sysinit from attempting to loadkeys
|
|
if [ \( $container_release_major = "4" -o $container_release_major = "5" \) -a -e $container_rootfs/etc/sysconfig/keyboard ]; then
|
|
rm $container_rootfs/etc/sysconfig/keyboard
|
|
fi
|
|
|
|
# dont use the hwclock, it messes up the host's time
|
|
if [ $container_release_major = "4" ]; then
|
|
sed -i 's|runcmd $"Syncing hardware clock|# LXC no hwclock runcmd $"Syncing hardware clock|' $container_rootfs/etc/rc.d/init.d/halt
|
|
else
|
|
sed -i 's|\[ -x /sbin/hwclock|\[ 0 -eq 1|' $container_rootfs/etc/rc.d/init.d/halt
|
|
fi
|
|
sed -i 's|/sbin/hwclock|# LXC no hwclock /sbin/hwclock|' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|/sbin/hwclock|# LXC no hwclock /sbin/hwclock|' $container_rootfs/etc/rc.d/rc.sysinit
|
|
|
|
# dont start lvm
|
|
sed -i 's|action $"Setting up Logical Volume Management:"|#action $"Setting up Logical Volume Management:"|' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|action $"Setting up Logical Volume Management:"|/bin/true #action $"Setting up Logical Volume Management:"|' $container_rootfs/etc/rc.d/rc.sysinit
|
|
|
|
# fix assumptions that plymouth is available
|
|
sed -i 's|\[ "$PROMPT" != no \] && plymouth|[ "$PROMPT" != no ] \&\& [ -n "$PLYMOUTH" ] \&\& plymouth|' $container_rootfs/etc/rc.sysinit
|
|
sed -i 's|\[ "$PROMPT" != no \] && plymouth|[ "$PROMPT" != no ] \&\& [ -n "$PLYMOUTH" ] \&\& plymouth|' $container_rootfs/etc/rc.d/rc.sysinit
|
|
rm -f $container_rootfs/etc/init/plymouth-shutdown.conf
|
|
rm -f $container_rootfs/etc/init/quit-plymouth.conf
|
|
rm -f $container_rootfs/etc/init/splash-manager.conf
|
|
|
|
# setup console and tty[1-4] for login. note that /dev/console and
|
|
# /dev/tty[1-4] will be symlinks to the ptys /dev/lxc/console and
|
|
# /dev/lxc/tty[1-4] so that package updates can overwrite the symlinks.
|
|
# lxc will maintain these links and bind mount ptys over /dev/lxc/*
|
|
# since lxc.devttydir is specified in the config.
|
|
|
|
# allow root login on console, tty[1-4], and pts/0 for libvirt
|
|
echo "# LXC (Linux Containers)" >>$container_rootfs/etc/securetty
|
|
echo "lxc/console" >>$container_rootfs/etc/securetty
|
|
echo "lxc/tty1" >>$container_rootfs/etc/securetty
|
|
echo "lxc/tty2" >>$container_rootfs/etc/securetty
|
|
echo "lxc/tty3" >>$container_rootfs/etc/securetty
|
|
echo "lxc/tty4" >>$container_rootfs/etc/securetty
|
|
echo "# For libvirt/Virtual Machine Monitor" >>$container_rootfs/etc/securetty
|
|
echo "pts/0" >>$container_rootfs/etc/securetty
|
|
|
|
# dont try to unmount /dev/lxc devices
|
|
sed -i 's|&& $1 !~ /^\\/dev\\/ram/|\&\& $2 !~ /^\\/dev\\/lxc/ \&\& $1 !~ /^\\/dev\\/ram/|' $container_rootfs/etc/init.d/halt
|
|
|
|
# start a getty on /dev/console, /dev/tty[1-4]
|
|
if [ $container_release_major = "4" -o $container_release_major = "5" ]; then
|
|
sed -i '/1:2345:respawn/i cns:2345:respawn:/sbin/mingetty console' $container_rootfs/etc/inittab
|
|
sed -i '/5:2345:respawn/d' $container_rootfs/etc/inittab
|
|
sed -i '/6:2345:respawn/d' $container_rootfs/etc/inittab
|
|
fi
|
|
|
|
if [ $container_release_major = "6" ]; then
|
|
cat <<EOF > $container_rootfs/etc/init/console.conf
|
|
# console - getty
|
|
#
|
|
# This service maintains a getty on the console 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/mingetty /dev/console
|
|
EOF
|
|
fi
|
|
|
|
# lxc-shutdown sends SIGPWR to init, OL4 and OL5 have SysVInit, just
|
|
# make it do shutdown now instead of delaying 2 minutes. OL6 uses
|
|
# upstart, so we create an upstart job to handle SIGPWR to shut down
|
|
# cleanly. We use "init 0" instead of shutdown -h now to avoid SELinux
|
|
# permission denied when upstart's shutdown tries to connect to the
|
|
# /com/ubuntu/upstart socket.
|
|
if [ $container_release_major = "4" -o $container_release_major = "5" ]; then
|
|
sed -i 's|pf::powerfail:/sbin/shutdown -f -h +2 "Power Failure; |pf::powerfail:/sbin/shutdown -f -h now "|' $container_rootfs/etc/inittab
|
|
else
|
|
cat <<EOF > $container_rootfs/etc/init/power-status-changed.conf
|
|
# power-status-changed - used to cleanly shut down the container
|
|
#
|
|
# This task is run whenever init receives SIGPWR
|
|
# Used to shut down the machine.
|
|
|
|
start on power-status-changed
|
|
|
|
exec init 0
|
|
EOF
|
|
fi
|
|
|
|
# there might be other services that are useless but the below set is a good start
|
|
# some of these might not exist in the image, so we silence chkconfig complaining
|
|
# about the service file not being found
|
|
for service in \
|
|
acpid apmd auditd autofs cpuspeed dund gpm haldaemon hidd \
|
|
ip6tables irqbalance iscsi iscsid isdn kdump kudzu \
|
|
lm_sensors lvm2-monitor mdmonitor microcode_ctl \
|
|
ntpd pcmcia postfix sendmail udev-post xfs ;
|
|
do
|
|
chroot $container_rootfs chkconfig 2>/dev/null $service off
|
|
done
|
|
|
|
for service in rsyslog ;
|
|
do
|
|
chroot $container_rootfs chkconfig 2>/dev/null $service on
|
|
done
|
|
|
|
# create required devices. note that /dev/console will be created by lxc
|
|
# or libvirt itself to be a symlink to the right pty.
|
|
# take care to not nuke /dev in case $container_rootfs isn't set
|
|
dev_path="$container_rootfs/dev"
|
|
if [ $container_rootfs != "/" -a -d $dev_path ]; then
|
|
rm -rf $dev_path
|
|
mkdir -p $dev_path
|
|
fi
|
|
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 666 $dev_path/full c 1 7
|
|
mknod -m 600 $dev_path/initctl p
|
|
|
|
# ensure /dev/ptmx refers to the newinstance devpts of the container, or
|
|
# pty's will get crossed up with the hosts (https://lkml.org/lkml/2012/1/23/512)
|
|
rm -f $container_rootfs/dev/ptmx
|
|
ln -s pts/ptmx $container_rootfs/dev/ptmx
|
|
|
|
# start with a clean /var/log/messages
|
|
rm -f $container_rootfs/var/log/messages
|
|
|
|
# add oracle user, set root password
|
|
chroot $container_rootfs useradd -m -s /bin/bash oracle
|
|
echo "oracle:oracle" | chroot $container_rootfs chpasswd
|
|
echo "root:root" | chroot $container_rootfs chpasswd
|
|
echo -e "Added container user:\033[1moracle\033[0m password:\033[1moracle\033[0m"
|
|
echo -e "Added container user:\033[1mroot\033[0m password:\033[1mroot\033[0m"
|
|
}
|
|
|
|
# create the container's lxc config file
|
|
container_config_create()
|
|
{
|
|
echo "Create configuration file $cfg_dir/config"
|
|
# generate a hwaddr for the container with a high mac address
|
|
# see http://sourceforge.net/tracker/?func=detail&aid=3411497&group_id=163076&atid=826303
|
|
local hwaddr="fe:`dd if=/dev/urandom bs=8 count=1 2>/dev/null |od -t x8 | \
|
|
head -1 |awk '{print $2}' | cut -c1-10 |\
|
|
sed 's/\(..\)/\1:/g; s/.$//'`"
|
|
mkdir -p $cfg_dir || die "unable to create config dir $cfg_dir"
|
|
cat <<EOF >> $cfg_dir/config || die "unable to create $cfg_dir/config"
|
|
# Container configuration for Oracle Linux $container_release_major.$container_release_minor
|
|
lxc.arch = $arch
|
|
lxc.utsname = $name
|
|
lxc.devttydir = lxc
|
|
lxc.tty = 4
|
|
lxc.pts = 1024
|
|
lxc.rootfs = $container_rootfs
|
|
lxc.mount = $cfg_dir/fstab
|
|
# Uncomment these if you don't run anything that needs the capability, and
|
|
# would like the container to run with less privilege.
|
|
#
|
|
# Dropping sys_admin disables container root from doing a lot of things
|
|
# that could be bad like re-mounting lxc fstab entries rw for example,
|
|
# but also disables some useful things like being able to nfs mount, and
|
|
# things that are already namespaced with ns_capable() kernel checks, like
|
|
# hostname(1).
|
|
# lxc.cap.drop = sys_admin
|
|
# lxc.cap.drop = net_raw # breaks dhcp/ping
|
|
# lxc.cap.drop = setgid # breaks login (initgroups/setgroups)
|
|
# lxc.cap.drop = dac_read_search # breaks login (pam unix_chkpwd)
|
|
# lxc.cap.drop = setuid # breaks sshd,nfs statd
|
|
# lxc.cap.drop = audit_control # breaks sshd (set_loginuid failed)
|
|
# lxc.cap.drop = audit_write
|
|
#
|
|
lxc.cap.drop = mac_admin mac_override setfcap setpcap
|
|
lxc.cap.drop = sys_module sys_nice sys_pacct
|
|
lxc.cap.drop = sys_rawio sys_time
|
|
EOF
|
|
|
|
if [ $container_release_major != "4" ]; then
|
|
echo "lxc.cap.drop = sys_resource" >>$cfg_dir/config
|
|
fi
|
|
|
|
echo "# Networking" >>$cfg_dir/config
|
|
# see if the network settings were already specified
|
|
lxc_network_type=`grep '^lxc.network.type' $cfg_dir/config | awk -F'[= \t]+' '{ print $2 }'`
|
|
if [ -z "$lxc_network_type" -a \
|
|
\( $host_distribution = "OracleServer" -o \
|
|
$host_distribution = "Fedora" \) ]; then
|
|
echo "lxc.network.type = veth" >>$cfg_dir/config
|
|
echo "lxc.network.flags = up" >>$cfg_dir/config
|
|
echo "lxc.network.link = virbr0" >>$cfg_dir/config
|
|
fi
|
|
|
|
cat <<EOF >> $cfg_dir/config || die "unable to create $cfg_dir/config"
|
|
lxc.network.name = eth0
|
|
lxc.network.mtu = 1500
|
|
lxc.network.hwaddr = $hwaddr
|
|
# Control Group devices: all denied except those whitelisted
|
|
lxc.cgroup.devices.deny = a
|
|
lxc.cgroup.devices.allow = c 1:3 rwm # /dev/null
|
|
lxc.cgroup.devices.allow = c 1:5 rwm # /dev/zero
|
|
lxc.cgroup.devices.allow = c 1:7 rwm # /dev/full
|
|
lxc.cgroup.devices.allow = c 5:0 rwm # /dev/tty
|
|
lxc.cgroup.devices.allow = c 1:8 rwm # /dev/random
|
|
lxc.cgroup.devices.allow = c 1:9 rwm # /dev/urandom
|
|
lxc.cgroup.devices.allow = c 136:* rwm # /dev/tty[1-4] ptys and lxc console
|
|
lxc.cgroup.devices.allow = c 5:2 rwm # /dev/ptmx pty master
|
|
EOF
|
|
|
|
cat <<EOF > $cfg_dir/fstab || die "unable to create $cfg_dir/fstab"
|
|
proc $container_rootfs/proc proc nodev,noexec,nosuid 0 0
|
|
devpts $container_rootfs/dev/pts devpts defaults 0 0
|
|
sysfs $container_rootfs/sys sysfs defaults 0 0
|
|
EOF
|
|
}
|
|
|
|
container_rootfs_clone()
|
|
{
|
|
if is_btrfs_subvolume $template_rootfs; then
|
|
# lxc-create already made $container_rootfs a btrfs subvolume, but
|
|
# in this case we want to snapshot the original subvolume so we we
|
|
# have to delete the one that lxc-create made
|
|
btrfs subvolume delete $container_rootfs
|
|
btrfs subvolume snapshot $template_rootfs $container_rootfs || die "btrfs clone template"
|
|
else
|
|
cp -ax $template_rootfs $container_rootfs || die "copy template"
|
|
fi
|
|
}
|
|
|
|
container_rootfs_create()
|
|
{
|
|
cmds="rpm wget yum"
|
|
if [ $container_release_major = "5" ]; then
|
|
if [ $host_distribution = "Ubuntu" ]; then
|
|
db_dump_cmd="db5.1_dump"
|
|
db_load_cmd="db4.3_load"
|
|
fi
|
|
if [ $host_distribution = "OracleServer" -o \
|
|
$host_distribution = "Fedora" ]; then
|
|
db_dump_cmd="db_dump"
|
|
db_load_cmd="db43_load"
|
|
fi
|
|
|
|
cmds="$cmds $db_dump_cmd $db_load_cmd file"
|
|
fi
|
|
for cmd in $cmds; do
|
|
which $cmd >/dev/null 2>&1
|
|
if [ $? -ne 0 ]; then
|
|
die "The $cmd command is required, please install it"
|
|
fi
|
|
done
|
|
|
|
mkdir -p @LOCALSTATEDIR@/lock/subsys/lxc
|
|
(
|
|
flock -x 200
|
|
if [ $? -ne 0 ]; then
|
|
die "The template is busy."
|
|
fi
|
|
|
|
echo "Downloading release $container_release_major.$container_release_minor for $basearch"
|
|
|
|
# get yum repo file
|
|
if [ -n "$repourl" ]; then
|
|
yum_url=$repourl
|
|
else
|
|
yum_url=http://public-yum.oracle.com
|
|
fi
|
|
if [ $container_release_major = "5" ]; then
|
|
repofile=public-yum-el5.repo
|
|
elif [ $container_release_major = "6" ]; then
|
|
repofile=public-yum-ol6.repo
|
|
else
|
|
die "Unsupported release $container_release_major"
|
|
fi
|
|
mkdir -p $container_rootfs/etc/yum.repos.d
|
|
wget -q $yum_url/$repofile -O $container_rootfs/etc/yum.repos.d/$repofile
|
|
if [ $? -ne 0 ]; then
|
|
die "Failed to download repo file $yum_url/$repofile"
|
|
fi
|
|
|
|
# yum will take $basearch from host, so force the arch we want
|
|
sed -i "s|\$basearch|$basearch|" $container_rootfs/etc/yum.repos.d/$repofile
|
|
|
|
# replace url if they specified one
|
|
if [ -n "$repourl" ]; then
|
|
sed -i "s|baseurl=http://public-yum.oracle.com/repo|baseurl=$repourl/repo|" $container_rootfs/etc/yum.repos.d/$repofile
|
|
sed -i "s|gpgkey=http://public-yum.oracle.com|gpgkey=$repourl|" $container_rootfs/etc/yum.repos.d/$repofile
|
|
fi
|
|
|
|
# disable all repos, then enable the repo for the version we are installing.
|
|
if [ $container_release_minor = "latest" ]; then
|
|
if [ $container_release_major = "5" ]; then
|
|
repo="el"$container_release_major"_"$container_release_minor
|
|
else
|
|
repo="ol"$container_release_major"_"$container_release_minor
|
|
fi
|
|
elif [ $container_release_minor = "0" ]; then
|
|
repo="ol"$container_release_major"_ga_base"
|
|
else
|
|
repo="ol"$container_release_major"_u"$container_release_minor"_base"
|
|
fi
|
|
sed -i "s|enabled=1|enabled=0|" $container_rootfs/etc/yum.repos.d/$repofile
|
|
sed -i "/\[$repo\]/,/\[/ s/enabled=0/enabled=1/" $container_rootfs/etc/yum.repos.d/$repofile
|
|
|
|
# create rpm db, download and yum install minimal packages
|
|
mkdir -p $container_rootfs/var/lib/rpm
|
|
rpm --root $container_rootfs --initdb
|
|
yum_cmd="yum --installroot $container_rootfs --disablerepo=* --enablerepo=$repo -y --nogpgcheck"
|
|
min_pkgs="yum initscripts passwd rsyslog vim-minimal openssh-server dhclient chkconfig rootfiles policycoreutils oraclelinux-release"
|
|
|
|
$yum_cmd install $min_pkgs
|
|
if [ $? -ne 0 ]; then
|
|
die "Failed to download and install the rootfs, aborting."
|
|
fi
|
|
|
|
# rsyslog and pam depend on coreutils for some common commands in
|
|
# their POSTIN scriptlets, but coreutils wasn't installed yet. now
|
|
# that coreutils is installed, reinstall the packages so their POSTIN
|
|
# runs right. similarly, libutempter depends on libselinux.so.1 when
|
|
# it runs /usr/sbin/groupadd, so reinstall it too
|
|
if [ $container_release_major = "5" ]; then
|
|
rpm --root $container_rootfs --nodeps -e rsyslog pam libutempter
|
|
$yum_cmd install rsyslog pam libutempter
|
|
if [ $? -ne 0 ]; then
|
|
die "Unable to reinstall packages"
|
|
fi
|
|
fi
|
|
|
|
# these distributions put the rpm database in a place the guest is
|
|
# not expecting it, so move it
|
|
if [ $host_distribution = "Ubuntu" ]; then
|
|
mv $container_rootfs/root/.rpmdb/* $container_rootfs/var/lib/rpm
|
|
fi
|
|
|
|
# if the native rpm created the db with Hash version 9, we need to
|
|
# downgrade it to Hash version 8 for use with OL5.x
|
|
db_version=`file $container_rootfs/var/lib/rpm/Packages | \
|
|
grep -o 'version [0-9]*' |awk '{print $2}'`
|
|
if [ $container_release_major = "5" -a $db_version != "8" ]; then
|
|
echo "Fixing (downgrading) rpm database from version $db_version"
|
|
rm -f $container_rootfs/var/lib/rpm/__db*
|
|
for db in $container_rootfs/var/lib/rpm/* ; do
|
|
$db_dump_cmd $db |$db_load_cmd $db.new
|
|
mv $db.new $db
|
|
done
|
|
fi
|
|
|
|
# the host rpm may not be the same as the guest, rebuild the db with
|
|
# the guest rpm version
|
|
echo "Rebuilding rpm database"
|
|
rm -f $container_rootfs/var/lib/rpm/__db*
|
|
chroot $container_rootfs rpm --rebuilddb >/dev/null 2>&1
|
|
) 200>@LOCALSTATEDIR@/lock/subsys/lxc-oracle-$name
|
|
}
|
|
|
|
container_release_get()
|
|
{
|
|
if [ -f $1/etc/oracle-release ]; then
|
|
container_release_version=`cat $1/etc/oracle-release |awk '/^Oracle/ {print $5}'`
|
|
container_release_major=`echo $container_release_version |awk -F '.' '{print $1}'`
|
|
container_release_minor=`echo $container_release_version |awk -F '.' '{print $2}'`
|
|
elif grep -q Nahant $1/etc/redhat-release; then
|
|
container_release_major=`cat $1/etc/redhat-release |awk '{print $7}'`
|
|
container_release_minor=`cat $1/etc/redhat-release |awk '{print $10}' |tr -d ")"`
|
|
container_release_version="$container_release_major.$container_release_minor"
|
|
else
|
|
echo "Unable to determine container release version"
|
|
exit 1
|
|
fi
|
|
}
|
|
|
|
usage()
|
|
{
|
|
cat <<EOF
|
|
-a|--arch=<arch> architecture (ie. i386, x86_64)
|
|
-R|--release=<release> release to download for the new container
|
|
-u|--url=<url> replace yum repo url (ie. local yum mirror)
|
|
-t|--templatefs=<path> copy/clone rootfs at path instead of downloading
|
|
-h|--help
|
|
|
|
Release is of the format "major.minor", for example "5.8", "6.3", or "6.latest"
|
|
EOF
|
|
return 0
|
|
}
|
|
|
|
options=$(getopt -o hp:n:a:R:u:t: -l help,path:,name:,arch:,release:,url:,templatefs: -- "$@")
|
|
if [ $? -ne 0 ]; then
|
|
usage $(basename $0)
|
|
exit 1
|
|
fi
|
|
|
|
arch=$(arch)
|
|
eval set -- "$options"
|
|
while true
|
|
do
|
|
case "$1" in
|
|
-h|--help) usage $0 && exit 0;;
|
|
-p|--path) cfg_dir=$2; shift 2;;
|
|
-n|--name) name=$2; shift 2;;
|
|
-a|--arch) arch=$2; shift 2;;
|
|
-R|--release) container_release_version=$2; shift 2;;
|
|
-u|--url) repourl=$2; shift;;
|
|
-t|--templatefs) template_rootfs=$2; shift 2;;
|
|
--) shift 1; break ;;
|
|
*) break ;;
|
|
esac
|
|
done
|
|
|
|
# make sure mandatory args are given and valid
|
|
if [ "$(id -u)" != "0" ]; then
|
|
echo "This script should be run as 'root'"
|
|
exit 1
|
|
fi
|
|
|
|
if [ -z $name ]; then
|
|
echo "Container name must be given"
|
|
usage
|
|
exit 1
|
|
fi
|
|
|
|
if [ -z $cfg_dir ]; then
|
|
echo "Configuration directory must be given, check lxc-create"
|
|
usage
|
|
exit 1
|
|
fi
|
|
|
|
basearch=$arch
|
|
if [ "$arch" = "i686" ]; then
|
|
basearch="i386"
|
|
fi
|
|
|
|
if [ "$arch" != "i386" -a "$arch" != "x86_64" ]; then
|
|
echo "Bad architecture given, check lxc-create"
|
|
usage
|
|
exit 1
|
|
fi
|
|
|
|
container_rootfs="$cfg_dir/rootfs"
|
|
|
|
if [ -n "$template_rootfs" ]; then
|
|
container_release_get $template_rootfs
|
|
else
|
|
if [ -z "$container_release_version" ]; then
|
|
echo "No release specified with -R, defaulting to 6.3"
|
|
container_release_version="6.3"
|
|
fi
|
|
container_release_major=`echo $container_release_version |awk -F '.' '{print $1}'`
|
|
container_release_minor=`echo $container_release_version |awk -F '.' '{print $2}'`
|
|
fi
|
|
|
|
if which lsb_release >/dev/null 2>&1; then
|
|
host_distribution=`lsb_release --id |awk '{print $3}'`
|
|
host_release_version=`lsb_release --release |awk '{print $2}'`
|
|
host_release_major=`echo $host_release_version |awk -F '.' '{print $1}'`
|
|
host_release_minor=`echo $host_release_version |awk -F '.' '{print $2}'`
|
|
else
|
|
if [ -f /etc/fedora-release ]; then
|
|
host_distribution="Fedora"
|
|
host_release_version=`cat /etc/fedora-release |awk '{print $3}'`
|
|
host_release_major=$host_release_version
|
|
host_release_minor=0
|
|
elif [ -f /etc/oracle-release ]; then
|
|
host_distribution="OracleServer"
|
|
host_release_version=`cat /etc/oracle-release |awk '{print $5}'`
|
|
host_release_major=`echo $host_release_version |awk -F '.' '{print $1}'`
|
|
host_release_minor=`echo $host_release_version |awk -F '.' '{print $2}'`
|
|
else
|
|
echo "Unable to determine host distribution, ensure lsb_release is installed"
|
|
exit 1
|
|
fi
|
|
fi
|
|
echo "Host is $host_distribution $host_release_version"
|
|
|
|
trap cleanup SIGHUP SIGINT SIGTERM
|
|
|
|
container_config_create
|
|
if [ -n "$template_rootfs" ]; then
|
|
container_rootfs_clone
|
|
else
|
|
container_rootfs_create
|
|
fi
|
|
|
|
container_release_get $container_rootfs
|
|
|
|
container_rootfs_configure
|
|
|
|
echo "Container : $container_rootfs"
|
|
echo "Config : $cfg_dir/config"
|
|
echo "Network : eth0 ($lxc_network_type) on $lxc_network_link"
|