diff --git a/templates/lxc-fedora.in b/templates/lxc-fedora.in index 684bb9c..922563d 100644 --- a/templates/lxc-fedora.in +++ b/templates/lxc-fedora.in @@ -26,18 +26,69 @@ # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA #Configurations -arch=$(arch) +arch=$(uname -m) cache_base=@LOCALSTATEDIR@/cache/lxc/fedora/$arch default_path=@LXCPATH@ root_password=root # is this fedora? -[ -f /etc/fedora-release ] && is_fedora=true +# Alow for weird remixes like the Raspberry Pi +# +# Use the Mitre standard CPE identifier for the release ID if possible... +# This may be in /etc/os-release or /etc/system-release-cpe. We +# should be able to use EITHER. Give preference to /etc/os-release for now. + +if [ -e /etc/os-release ] +then +# This is a shell friendly configuration file. We can just source it. +# What we're looking for in here is the ID, VERSION_ID and the CPE_NAME + . /etc/os-release + echo "Host CPE ID from /etc/os-release: ${CPE_NAME}" +fi + +if [ "${CPE_NAME}" = "" -a -e /etc/system-release-cpe ] +then + CPE_NAME=$(head -n1 /etc/system-release-cpe) + CPE_URI=$(expr ${CPE_NAME} : '\([^:]*:[^:*]\)') + if [ "${CPE_URI}" != "cpe:/o" ] + then + CPE_NAME= + else + echo "Host CPE ID from /etc/system-release-cpe: ${CPE_NAME}" + # Probably a better way to do this but sill remain posix + # compatible but this works, shrug... + # Must be nice and not introduce convenient bashisms here. + ID=$(expr ${CPE_NAME} : '[^:]*:[^:]*:[^:]*:\([^:]*\)') + VERSION_ID=$(expr ${CPE_NAME} : '[^:]*:[^:]*:[^:]*:[^:]*:\([^:]*\)') + fi +fi -if [ "$arch" = "i686" ]; then - arch=i386 +if [ "${CPE_NAME}" != "" -a "${ID}" = "fedora" -a "${VERSION_ID}" != "" ] +then + fedora_host_ver=${VERSION_ID} + is_fedora=true +elif [ -e /etc/redhat-release ] +then + # Only if all other methods fail, try to parse the redhat-release file. + fedora_host_ver=$( sed -e '/^Fedora /!d' -e 's/Fedora.*\srelease\s*\([0-9][0-9]*\)\s.*/\1/' < /etc/redhat-release ) + if [ "$fedora_host_ver" != "" ] + then + is_fedora=true + fi fi +# Map a few architectures to their generic Fedora repository archs. +# The two ARM archs are a bit of a guesstimate for the v5 and v6 +# archs. V6 should have hardware floating point (Rasberry Pi). +# The "arm" arch is safer (no hardware floating point). So +# there may be cases where we "get it wrong" for some v6 other +# than RPi. +case "$arch" in +i686) arch=i386 ;; +armv3l|armv4l|armv5l) arch=arm ;; +armv6l|armv7l|armv8l) arch=armhfp ;; +esac + configure_fedora() { @@ -50,7 +101,7 @@ configure_fedora() DEVICE=eth0 BOOTPROTO=dhcp ONBOOT=yes -HOSTNAME=${name} +HOSTNAME=${utsname} NM_CONTROLLED=no TYPE=Ethernet MTU=${MTU} @@ -59,12 +110,18 @@ EOF # set the hostname cat < ${rootfs_path}/etc/sysconfig/network NETWORKING=yes -HOSTNAME=${name} +HOSTNAME=${utsname} EOF + # set hostname on systemd Fedora systems + if [ $release -gt 14 ]; then + echo "${utsname}" > ${rootfs_path}/etc/hostname + fi + # set minimal hosts cat < $rootfs_path/etc/hosts -127.0.0.1 localhost $name +127.0.0.1 localhost.localdomain localhost $utsname +::1 localhost6.localdomain6 localhost6 EOF dev_path="${rootfs_path}/dev" @@ -118,10 +175,27 @@ configure_fedora_systemd() { unlink ${rootfs_path}/etc/systemd/system/default.target touch ${rootfs_path}/etc/fstab - chroot ${rootfs_path} ln -s /dev/null //etc/systemd/system/udev.service + chroot ${rootfs_path} ln -s /dev/null /etc/systemd/system/udev.service chroot ${rootfs_path} ln -s /lib/systemd/system/multi-user.target /etc/systemd/system/default.target #dependency on a device unit fails it specially that we disabled udev - sed -i 's/After=dev-%i.device/After=/' ${rootfs_path}/lib/systemd/system/getty\@.service + # sed -i 's/After=dev-%i.device/After=/' ${rootfs_path}/lib/systemd/system/getty\@.service + # + # Actually, the After=dev-%i.device line does not appear in the + # Fedora 17 or Fedora 18 systemd getty\@.service file. It may be left + # over from an earlier version and it's not doing any harm. We do need + # to disable the "ConditionalPathExists=/dev/tty0" line or no gettys are + # started on the ttys in the container. Lets do it in an override copy of + # the service so it can still pass rpm verifies and not be automatically + # updated by a new systemd version. -- mhw /\/\|=mhw=|\/\/ + + sed -e 's/^ConditionPathExists=/# ConditionPathExists=/' \ + -e 's/After=dev-%i.device/After=/' \ + < ${rootfs_path}/lib/systemd/system/getty\@.service \ + > ${rootfs_path}/etc/systemd/system/getty\@.service + # Setup getty service on the 4 ttys we are going to allow in the + # default config. Number should match lxc.tty + ( cd ${rootfs_path}/etc/systemd/system/getty.target.wants + for i in 1 2 3 4 ; do ln -sf ../getty\@.service getty@tty${i}.service; done ) } download_fedora() @@ -142,27 +216,53 @@ download_fedora() MIRRORLIST_URL="http://mirrors.fedoraproject.org/mirrorlist?repo=fedora-$release&arch=$arch" DOWNLOAD_OK=no - for trynumber in 1 2 3; do + + # We're splitting the old loop into two loops plus a directory retrival. + # First loop... Try and retrive a mirror list with retries and a slight + # delay between attempts... + for trynumber in 1 2 3 4; do [ $trynumber != 1 ] && echo "Trying again..." - MIRROR_URL=$(curl -s -S -f "$MIRRORLIST_URL" | head -n2 | tail -n1) - if [ $? -ne 0 ] || [ -z "$MIRROR_URL" ]; then - echo "Failed to get a mirror" - continue - fi + # This code is mildly "brittle" in that it assumes a certain + # page format and parsing HTML. I've done worse. :-P + MIRROR_URLS=$(curl -s -S -f "$MIRRORLIST_URL" | sed -e '/^http:/!d' -e '2,6!d') + if [ $? -eq 0 ] && [ -n "$MIRROR_URLS" ] + then + break + fi + + echo "Failed to get a mirror on try $trynumber" + sleep 3 + done + + # This will fall through if we didn't get any URLS above + for MIRROR_URL in ${MIRROR_URLS} + do if [ "$release" -gt "16" ]; then - RELEASE_URL="$MIRROR_URL/Packages/f/fedora-release-$release-1.noarch.rpm" + RELEASE_URL="$MIRROR_URL/Packages/f" else - RELEASE_URL="$MIRROR_URL/Packages/fedora-release-$release-1.noarch.rpm" + RELEASE_URL="$MIRROR_URL/Packages/" fi - echo "Fetching from $RELEASE_URL" - curl -f "$RELEASE_URL" > $INSTALL_ROOT/fedora-release-$release.noarch.rpm + + echo "Fetching rpm name from $RELEASE_URL..." + # This code is mildly "brittle" in that it assumes a certain directory + # page format and parsing HTML. I've done worse. :-P + RELEASE_RPM=$(curl -L -f "$RELEASE_URL" | sed -e "/fedora-release-${release}-/!d" -e 's/.*.*//' ) + if [ $? -ne 0 -o "${RELEASE_RPM}" = "" ]; then + echo "Failed to identify fedora release rpm." + continue + fi + + echo "Fetching fedora release rpm from ${RELEASE_URL}/${RELEASE_RPM}......" + curl -L -f "${RELEASE_URL}/${RELEASE_RPM}" > ${INSTALL_ROOT}/${RELEASE_RPM} if [ $? -ne 0 ]; then - echo "Failed to download fedora release rpm" + echo "Failed to download fedora release rpm ${RELEASE_RPM}." continue fi + DOWNLOAD_OK=yes break done + if [ $DOWNLOAD_OK != yes ]; then echo "Aborting" return 1 @@ -170,7 +270,7 @@ download_fedora() mkdir -p $INSTALL_ROOT/var/lib/rpm rpm --root $INSTALL_ROOT --initdb - rpm --root $INSTALL_ROOT -ivh $INSTALL_ROOT/fedora-release-$release.noarch.rpm + rpm --root $INSTALL_ROOT -ivh ${INSTALL_ROOT}/${RELEASE_RPM} $YUM install $PKG_LIST if [ $? -ne 0 ]; then @@ -248,10 +348,13 @@ copy_configuration() mkdir -p $config_path grep -q "^lxc.rootfs" $config_path/config 2>/dev/null || echo "lxc.rootfs = $rootfs_path" >> $config_path/config cat <> $config_path/config -lxc.utsname = $name +lxc.utsname = $utsname lxc.tty = 4 lxc.pts = 1024 lxc.mount = $config_path/fstab +lxc.cap.drop = sys_module mac_admin mac_override sys_time + +lxc.autodev = $auto_dev # When using LXC with apparmor, uncomment the next line to run unconfined: #lxc.aa_profile = unconfined @@ -272,7 +375,7 @@ 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 +lxc.cgroup.devices.allow = c 254:0 rm EOF cat < $config_path/fstab @@ -313,21 +416,23 @@ usage() cat < - [-p|--path=] [-c|--clean] [-R|--release=] [-A|--arch=] + [-p|--path=] [-c|--clean] [-R|--release=] [--fqdn=] [-A|--arch=] [-h|--help] Mandatory args: -n,--name container name, used to as an identifier for that container from now on Optional args: - -p,--path path to where the container rootfs will be created, defaults to @LXCPATH@. The container config will go under @LXCPATH@ in that case + -p,--path path to where the container will be created, defaults to @LXCPATH@. The container config will go under @LXCPATH@ in that case + --rootfs path for actual rootfs. -c,--clean clean the cache - -R,--release Fedora release for the new container. if the host is Fedora, then it will defaultto the host's release. + -R,--release Fedora release for the new container. if the host is Fedora, then it will default to the host's release. + --fqdn fully qualified domain name (FQDN) for DNS and system naming -A,--arch NOT USED YET. Define what arch the container will be [i686,x86_64] -h,--help print this help EOF return 0 } -options=$(getopt -o hp:n:cR: -l help,path:,name:,clean,release: -- "$@") +options=$(getopt -o hp:n:cR: -l help,path:,rootfs:,name:,clean,release:,fqdn: -- "$@") if [ $? -ne 0 ]; then usage $(basename $0) exit 1 @@ -339,9 +444,11 @@ do case "$1" in -h|--help) usage $0 && exit 0;; -p|--path) path=$2; shift 2;; + --rootfs) rootfs=$2; shift 2;; -n|--name) name=$2; shift 2;; -c|--clean) clean=$2; shift 2;; -R|--release) release=$2; shift 2;; + --fqdn) utsname=$2; shift 2;; --) shift 1; break ;; *) break ;; esac @@ -352,6 +459,29 @@ if [ ! -z "$clean" -a -z "$path" ]; then exit 0 fi +if [ -z "${utsname}" ]; then + utsname=${name} +fi + +# This follows a standard "resolver" convention that an FQDN must have +# at least two dots or it is considered a local relative host name. +# If it doesn't, append the dns domain name of the host system. +# +# This changes one significant behavior when running +# "lxc_create -n Container_Name" without using the +# --fqdn option. +# +# Old behavior: +# utsname and hostname = Container_Name +# New behavior: +# utsname and hostname = Container_Name.Domain_Name + +if [ $(expr "$utsname" : '.*\..*\.') = 0 ]; then + if [ -n "$(dnsdomainname)" ]; then + utsname=${utsname}.$(dnsdomainname) + fi +fi + needed_pkgs="" type yum >/dev/null 2>&1 if [ $? -ne 0 ]; then @@ -365,33 +495,43 @@ fi if [ -n "$needed_pkgs" ]; then echo "Missing commands: $needed_pkgs" - echo "Please install these using \"sudo apt-get install $needed_pkgs\"" + echo "Please install these using \"sudo yum install $needed_pkgs\"" exit 1 fi if [ -z "$path" ]; then - path=$default_path + path=$default_path/$name fi if [ -z "$release" ]; then - if [ "$is_fedora" ]; then - release=$(cat /etc/fedora-release |awk '/^Fedora/ {print $3}') + if [ "$is_fedora" -a "$fedora_host_ver" ]; then + release=$fedora_host_ver else - echo "This is not a fedora host and release missing, defaulting to 14. use -R|--release to specify release" - release=14 + echo "This is not a fedora host and release missing, defaulting to 18. use -R|--release to specify release" + release=18 fi fi +# Fedora 15 and above run systemd. We need autodev enabled to keep +# systemd from causing problems. +if [ $release -gt 14 ]; then + auto_dev="1" +else + auto_dev="0" +fi + if [ "$(id -u)" != "0" ]; then echo "This script should be run as 'root'" exit 1 fi -rootfs_path=$path/$name/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=`grep 'lxc.rootfs =' $path/config | awk -F= '{ print $2 }'` +if [ -z "$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=`grep 'lxc.rootfs =' $path/config | awk -F= '{ print $2 }'` + fi fi config_path=$default_path/$name cache=$cache_base/$release @@ -427,13 +567,20 @@ if [ $? -ne 0 ]; then exit 1 fi -type /bin/systemd >/dev/null 2>&1 -if [ $? -ne 0 ]; then - configure_fedora_init -else +# If the systemd configuration directory exists - set it up for what we need. +if [ -d ${rootfs_path}/etc/systemd/system ] +then configure_fedora_systemd fi +# This configuration (rc.sysinit) is not inconsistent with the systemd stuff +# above and may actually coexist on some upgraded systems. Let's just make +# sure that, if it exists, we update this file, even if it's not used... +if [ -f ${rootfs_path}/etc/rc.sysinit ] +then + configure_fedora_init +fi + if [ ! -z $clean ]; then clean || exit 1 exit 0