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oracle template: add support for creating ol4 container from ovm template

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Also: disable the interactive part of ovmd so ol5,6 containers won't
hang if started for the first time with -d. Don't let containers do rawio,
or have access to /dev/rtc0, they can mess up the hosts system clock among
other things.

Signed-off-by: Dwight Engen <dwight.engen@oracle.com>
Acked-by: Stéphane Graber <stgraber@ubuntu.com>
This commit is contained in:
Dwight Engen 2012-12-14 15:38:35 -05:00 committed by Stéphane Graber
parent 596a818d4b
commit e35cb41b8c
1 changed files with 83 additions and 40 deletions
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111
templates/lxc-oracle.in
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@ -49,7 +49,7 @@ is_btrfs_subvolume()
# fix up the container_rootfs
container_rootfs_configure()
{
echo "Configuring container for Oracle Linux $container_release_major"
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
@ -88,6 +88,11 @@ 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
@ -119,23 +124,46 @@ EOF
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 = "5" ]; then
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 = "5" -a -e $container_rootfs/etc/sysconfig/keyboard ]; then
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 try to sync the hwclock at shutdown
# 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
@ -168,7 +196,7 @@ EOF
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 = "5" ]; then
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
@ -193,10 +221,10 @@ EOF
# 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 auditd autofs cpuspeed dund gpm haldaemon hidd \
acpid apmd auditd autofs cpuspeed dund gpm haldaemon hidd \
ip6tables irqbalance iscsi iscsid isdn kdump kudzu \
lm_sensors lvm2-monitor mdmonitor microcode_ctl \
ntpd postfix sendmail udev-post ;
ntpd pcmcia postfix sendmail udev-post xfs ;
do
chroot $container_rootfs chkconfig 2>/dev/null $service off
done
@ -238,7 +266,7 @@ EOF
rm -f $container_rootfs/var/log/messages
# add oracle user, set root password
chroot $container_rootfs useradd --create-home -s /bin/bash oracle
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"
@ -256,7 +284,7 @@ container_config_create()
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 $release_major.$release_minor
# Container configuration for Oracle Linux $container_release_major.$container_release_minor
lxc.arch = $arch
lxc.utsname = $name
lxc.devttydir = lxc
@ -264,6 +292,7 @@ lxc.tty = 4
lxc.pts = 1024
lxc.rootfs = $container_rootfs
lxc.mount = $cfg_dir/fstab
lxc.cap.drop = sys_rawio
# Networking
EOF
@ -291,7 +320,6 @@ 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
lxc.cgroup.devices.allow = c 254:0 rwm # /dev/rtc0
EOF
cat <<EOF > $cfg_dir/fstab || die "unable to create $cfg_dir/fstab"
@ -317,7 +345,7 @@ container_rootfs_clone()
container_rootfs_create()
{
cmds="rpm wget yum"
if [ $release_major = "5" ]; then
if [ $container_release_major = "5" ]; then
if [ $host_distribution = "Ubuntu" ]; then
db_dump_cmd="db5.1_dump"
db_load_cmd="db4.3_load"
@ -344,16 +372,16 @@ container_rootfs_create()
die "The template is busy."
fi
echo "Downloading release $release_major.$release_minor for $basearch"
echo "Downloading release $container_release_major.$container_release_minor for $basearch"
# get yum repo file
public_yum_url=http://public-yum.oracle.com
if [ $release_major = "5" ]; then
if [ $container_release_major = "5" ]; then
repofile=public-yum-el5.repo
elif [ $release_major = "6" ]; then
elif [ $container_release_major = "6" ]; then
repofile=public-yum-ol6.repo
else
die "Unsupported release $release_major"
die "Unsupported release $container_release_major"
fi
mkdir -p $container_rootfs/etc/yum.repos.d
wget -q $public_yum_url/$repofile -O $container_rootfs/etc/yum.repos.d/$repofile
@ -371,16 +399,16 @@ container_rootfs_create()
fi
# disable all repos, then enable the repo for the version we are installing.
if [ $release_minor = "latest" ]; then
if [ $release_major = "5" ]; then
repo="el"$release_major"_"$release_minor
if [ $container_release_minor = "latest" ]; then
if [ $container_release_major = "5" ]; then
repo="el"$container_release_major"_"$container_release_minor
else
repo="ol"$release_major"_"$release_minor
repo="ol"$container_release_major"_"$container_release_minor
fi
elif [ $release_minor = "0" ]; then
repo="ol"$release_major"_ga_base"
elif [ $container_release_minor = "0" ]; then
repo="ol"$container_release_major"_ga_base"
else
repo="ol"$release_major"_u"$release_minor"_base"
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
@ -401,7 +429,7 @@ container_rootfs_create()
# 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 [ $release_major = "5" ]; then
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
@ -419,7 +447,7 @@ container_rootfs_create()
# 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 [ $release_major = "5" -a $db_version != "8" ]; then
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 $container_rootfs/var/lib/rpm/* ; do
@ -436,6 +464,22 @@ container_rootfs_create()
) 200>@LOCALSTATEDIR@/lock/subsys/lxc-oracle-$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
@ -465,7 +509,7 @@ do
-p|--path) cfg_dir=$2; shift 2;;
-n|--name) name=$2; shift 2;;
-a|--arch) arch=$2; shift 2;;
-R|--release) release_version=$2; shift 2;;
-R|--release) container_release_version=$2; shift 2;;
-u|--url) repourl=$2; shift;;
-t|--templatefs) template_rootfs=$2; shift 2;;
--) shift 1; break ;;
@ -505,14 +549,15 @@ fi
container_rootfs="$cfg_dir/rootfs"
if [ -n "$template_rootfs" ]; then
release_version=`cat $template_rootfs/etc/oracle-release |awk '/^Oracle/ {print $5}'`
fi
if [ -z "$release_version" ]; then
container_release_get $template_rootfs
else
if [ -z "$container_release_version" ]; then
echo "No release specified with -R, defaulting to 6.3"
release_version="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
release_major=`echo $release_version |awk -F '.' '{print $1}'`
release_minor=`echo $release_version |awk -F '.' '{print $2}'`
if which lsb_release >/dev/null 2>&1; then
host_distribution=`lsb_release --id |awk '{print $3}'`
@ -546,9 +591,7 @@ else
container_rootfs_create
fi
container_release_version=`cat $container_rootfs/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}'`
container_release_get $container_rootfs
container_rootfs_configure