#!/bin/bash
#
-# template script for generating centos container for LXC
+# template script for generating CentOS container for LXC
#
# lxc: linux Container library
lxc_network_type=veth
lxc_network_link=lxcbr0
-# is this centos?
+# is this CentOS?
# Alow for weird remixes like the Raspberry Pi
#
# Use the Mitre standard CPE identifier for the release ID if possible...
then
centos_host_ver=${VERSION_ID}
is_centos=true
-elif [ "${CPE_NAME}" != "" -a "${ID}" = "redhat" -a "${VERSION_ID}" != "" ]
+elif [ "${CPE_NAME}" != "" -a "${ID}" = "redhat" -o "${ID}" = "rhel" -a "${VERSION_ID}" != "" ]
then
+ # RHEL 7+ /etc/os-release ID = 'rhel', which doesn't enter this elif without the added OR statement
redhat_host_ver=${VERSION_ID}
is_redhat=true
elif [ -e /etc/centos-release ]
configure_centos()
{
- # disable selinux in centos
+ # disable selinux in CentOS
mkdir -p $rootfs_path/selinux
echo 0 > $rootfs_path/selinux/enforce
DEVICE=eth0
BOOTPROTO=dhcp
ONBOOT=yes
-HOSTNAME=${UTSNAME}
+HOSTNAME=${utsname}
NM_CONTROLLED=no
TYPE=Ethernet
MTU=${MTU}
# set the hostname
cat <<EOF > ${rootfs_path}/etc/sysconfig/network
NETWORKING=yes
-HOSTNAME=${UTSNAME}
+HOSTNAME=${utsname}
EOF
# set minimal hosts
# /dev/tty[1-4] will be symlinks to the ptys /dev/lxc/console and
# /dev/lxc/tty[1-4] so that package updates can overwrite the symlinks.
# lxc will maintain these links and bind mount ptys over /dev/lxc/*
- # since lxc.devttydir is specified in the config.
+ # since lxc.tty.dir is specified in the config.
# allow root login on console, tty[1-4], and pts/0 for libvirt
echo "# LXC (Linux Containers)" >>${rootfs_path}/etc/securetty
# power-status-changed - shutdown on SIGPWR
#
start on power-status-changed
-
+
exec /sbin/shutdown -h now "SIGPWR received"
EOF
fi
download_centos()
{
- # check the mini centos was not already downloaded
+ # check the mini CentOS was not already downloaded
INSTALL_ROOT=$cache/partial
mkdir -p $INSTALL_ROOT
if [ $? -ne 0 ]; then
return 1
fi
- # download a mini centos into a cache
- echo "Downloading centos minimal ..."
+ # download a mini CentOS into a cache
+ echo "Downloading CentOS minimal ..."
YUM0="yum --installroot $INSTALL_ROOT -y --nogpgcheck"
if yum -h | grep -q 'releasever=RELEASEVER'; then
else
YUM="$YUM0"
fi
- PKG_LIST="yum initscripts passwd rsyslog vim-minimal openssh-server openssh-clients dhclient chkconfig rootfiles policycoreutils"
+ PKG_LIST="yum initscripts passwd rsyslog vim-minimal openssh-server openssh-clients dhclient chkconfig rootfiles policycoreutils cronie"
# use temporary repository definition
+ # always prefer the repo given by the user
+ # if no repo given, use mirrorlist.centos.org for i386 and x86_64
+ # and http://mirror.centos.org/altarch/ otherwise
REPO_FILE=$INSTALL_ROOT/etc/yum.repos.d/lxc-centos-temp.repo
mkdir -p $(dirname $REPO_FILE)
if [ -n "$repo" ]; then
name=local repository
baseurl="$repo"
EOF
-else
+ elif [ ${basearch} = 'i386' ] || [ ${basearch} = 'x86_64' ]; then
cat <<EOF > $REPO_FILE
[base]
name=CentOS-$release - Base
[updates]
name=CentOS-$release - Updates
mirrorlist=http://mirrorlist.centos.org/?release=$release&arch=$basearch&repo=updates
+EOF
+ else
+ cat <<EOF > $REPO_FILE
+[base]
+name=CentOS-$release - Base
+baseurl=http://mirror.centos.org/altarch/7/os/$basearch/
+
+[updates]
+name=CentOS-$release - Updates
+baseurl=http://mirror.centos.org/altarch/7/updates/$basearch/
EOF
fi
$YUM install $PKG_LIST
+ # create symlink for /var/run -> ../run
+ if [ "$release" = "7" ]; then
+ mv $INSTALL_ROOT/var/run/* $INSTALL_ROOT/run/
+ rmdir $INSTALL_ROOT/var/run
+ ln -sf ../run $INSTALL_ROOT/var/run
+ fi
+
if [ $? -ne 0 ]; then
echo "Failed to download the rootfs, aborting."
return 1
copy_centos()
{
- # make a local copy of the mini centos
+ # make a local copy of the mini CentOS
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/
+ rsync -SHaAX $cache/rootfs/ $rootfs_path/
echo
return 0
}
if [ ! -e "$cache/rootfs" ]; then
download_centos
if [ $? -ne 0 ]; then
- echo "Failed to download 'centos base'"
+ echo "Failed to download 'CentOS base'"
return 1
fi
else
echo "Cache found. Updating..."
update_centos
if [ $? -ne 0 ]; then
- echo "Failed to update 'centos base', continuing with last known good cache"
+ echo "Failed to update 'CentOS base', continuing with last known good cache"
else
echo "Update finished"
fi
{
mkdir -p $config_path
- grep -q "^lxc.rootfs" $config_path/config 2>/dev/null || echo "
-lxc.rootfs = $rootfs_path
+ grep -q "^lxc.rootfs.path" $config_path/config 2>/dev/null || echo "
+lxc.rootfs.path = $rootfs_path
" >> $config_path/config
# The following code is to create static MAC addresses for each
# Seems that \s doesn't work in brackets.
KEY=$(expr "${LINE}" : '\s*\([^ ]*\)\s*=')
- if [[ "${KEY}" != "lxc.network.hwaddr" ]]
+ if [[ "${KEY}" != "lxc.net.0.hwaddr" ]]
then
echo ${LINE} >> $config_path/config
- if [[ "${KEY}" == "lxc.network.link" ]]
+ if [[ "${KEY}" == "lxc.net.0.link" ]]
then
- echo "lxc.network.hwaddr = $(create_hwaddr)" >> $config_path/config
+ echo "lxc.net.0.hwaddr = $(create_hwaddr)" >> $config_path/config
fi
fi
done < $config_path/config.def
# Append things which require expansion here...
cat <<EOF >> $config_path/config
lxc.arch = $arch
-lxc.utsname = $utsname
+lxc.uts.name = $utsname
# When using LXC with apparmor, uncomment the next line to run unconfined:
-#lxc.aa_profile = unconfined
+#lxc.apparmor.profile = unconfined
# example simple networking setup, uncomment to enable
-#lxc.network.type = $lxc_network_type
-#lxc.network.flags = up
-#lxc.network.link = $lxc_network_link
-#lxc.network.name = eth0
+#lxc.net.0.type = $lxc_network_type
+#lxc.net.0.flags = up
+#lxc.net.0.link = $lxc_network_link
+#lxc.net.0.name = eth0
# Additional example for veth network type
# static MAC address,
-#lxc.network.hwaddr = 00:16:3e:77:52:20
+#lxc.net.0.hwaddr = 00:16:3e:77:52:20
# persistent veth device name on host side
# Note: This may potentially collide with other containers of same name!
-#lxc.network.veth.pair = v-$name-e0
+#lxc.net.0.veth.pair = v-$name-e0
EOF
exit 1
fi
- echo -n "Purging the download cache for centos-$release..."
+ echo -n "Purging the download cache for CentOS-$release..."
rm --preserve-root --one-file-system -rf $cache && echo "Done." || exit 1
exit 0
Optional args:
-p,--path path to where the container rootfs will be created, defaults to /var/lib/lxc/name.
-c,--clean clean the cache
- -R,--release Centos release for the new container. if the host is Centos, then it will defaultto the host's release.
+ -R,--release CentOS release for the new container. If the host is CentOS, then it will default to the host's release.
--fqdn fully qualified domain name (FQDN) for DNS and system naming
--repo repository to use (url)
-a,--arch Define what arch the container will be [i686,x86_64]
# This is needed to clean out bullshit like 6workstation and 6server.
release=$(expr $redhat_host_ver : '\([0-9.]*\)')
else
- echo "This is not a CentOS or Redhat host and release is missing, defaulting to 6 use -R|--release to specify release"
- release=6
+ echo "This is not a CentOS or Red Hat host and release is missing, defaulting to 7, use -R|--release to specify release"
+ release=7
fi
fi
if [ -z "$rootfs_path" ]; then
rootfs_path=$path/rootfs
- # check for 'lxc.rootfs' passed in through default config by lxc-create
- if grep -q '^lxc.rootfs' $path/config 2>/dev/null ; then
- rootfs_path=$(sed -e '/^lxc.rootfs\s*=/!d' -e 's/\s*#.*//' \
- -e 's/^lxc.rootfs\s*=\s*//' -e q $path/config)
+ # check for 'lxc.rootfs.path' passed in through default config by lxc-create
+ if grep -q '^lxc.rootfs.path' $path/config 2>/dev/null ; then
+ rootfs_path=$(sed -e '/^lxc.rootfs.path\s*=/!d' -e 's/\s*#.*//' \
+ -e 's/^lxc.rootfs.path\s*=\s*//' -e q $path/config)
fi
fi
config_path=$path
install_centos
if [ $? -ne 0 ]; then
- echo "failed to install centos"
+ echo "failed to install CentOS"
exit 1
fi
configure_centos
if [ $? -ne 0 ]; then
- echo "failed to configure centos for a container"
+ echo "failed to configure CentOS for a container"
exit 1
fi
projects / mirror_lxc.git / blobdiff