-#! /bin/bash
+# $Id$ --*- sh -*--
# Copyright (C) 2003 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de>
#
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-## Expected env:
-# $VSERVER_DIR ... path to vserver-cfg dir
-# $VSERVER_NAME ... name of vserver
-declare -a NICE_CMD=()
-declare -a CHBIND_OPTS=()
-declare -a CAP_OPTS=()
-declare -a CHCONTEXT_FLAG_OPTS=()
-declare -a CHCONTEXT_OPTS=()
-declare -a CAPCHROOT_OPTS=()
-declare -a INTERFACES=()
-declare -a START_CMD=()
+lock "$__LOCKDIR"/vserver."$($_VSERVER_INFO "$VSERVER_DIR" CANONIFY)".startup
-SILENT_OPT=
+if isVserverRunning "$VSERVER_DIR"; then
+ warning $"vserver '$VSERVER_NAME' already running"
+ exit 0
+fi
-function _generateInterfaceList
+function cleanup()
{
- local vdir="$1"
- local iface
- local ip
+ set +e
- for iface in "$VSERVER_DIR/interfaces/"*; do
- test -d "$iface" || continue
- test ! -e "$iface"/disabled || continue
+ test -z "$startsync_pipe" || $_RM -f "$startsync_pipe"
+ test -z "$is_started" || { unlock; return 0; }
- read ip <"$iface"/ip || continue
- INTERFACES=( "${INTERFACES[@]}" "$ip" )
- done 2>/dev/null
-}
+ if test -n "$is_configured" -a -z "$is_executed"; then
+ warning $"
+An error occured while executing the vserver startup sequence; when
+there are no other messages, it is very likely that the init-script
+(${INITCMD_START[@]}) failed.
-function _generateChbindOptions
-{
- local vdir="$1"
- local i
- local bcast=
+Common causes are:
+* /etc/rc.d/rc on Fedora Core 1 and RH9 fails always; the 'apt-rpm' build
+ method knows how to deal with this, but on existing installations,
+ appending 'true' to this file will help."
+ fi
- local f=$vdir/interfaces/bcast
- test ! -e "$f" || read bcast <"$f"
-
- CHBIND_OPTS=( $SILENT_OPT ${bcast:+--bcast "$bcast"} )
+ if test -n "$is_executed"; then
+ warning $"
+An error occured after executing the vserver startup sequence. This
+means that some processes may exist in the created context and the
+manual execution of
- for i in "${INTERFACES[@]}"; do
- CHBIND_OPTS=( "${CHBIND_OPTS[@]}" --ip "$i" )
- done
-}
+ $_VSERVER '$VSERVER_DIR' stop
-function _generateNiceCommand
-{
- local vdir=$1
- local nice
+is recommended to fix this."
+ else
+ warning $"
- test -e "$vdir/nice" || return 0;
- read nice <"$vdir"/nice
+Failed to start vserver '$VSERVER_NAME'"
+ fi
- NICE_CMD=( $_NICE -$nice )
-}
+ test -n "$OPTION_DEBUG" || exec 2>/dev/null >/dev/null
+ test -z "$is_mounted" || umountVserver "$VSERVER_DIR" || :
+ test -z "$have_interfaces" || disableInterfaces "$VSERVER_DIR" || :
-function _generateCapabilityOptions
-{
- local vdir=$1
- local cap
-
- test -e "$vdir"/capabilities || return 0
-
- CAP_OPTS=()
- CAPCHROOT_OPTS=()
-
- while read cap; do
- case x"$cap" in
- x|x#) ;;
- !CAP_SYSCHROOT)
- CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" )
- CAPCHROOT_OPTS=( "${CAPCHROOT_OPTS[@]}" --nochroot )
- ;;
- *)
- CAP_OPTS=( "${CAP_OPTS[@]}" --cap "$cap" );;
- esac
- done <"$vdir"/capabilities
+ unlock || :
}
-function _generateFlagOptions
-{
- local vdir=$1
- local init_default=3
-
- CHCONTEXT_FLAG_OPTS=()
-
- ## TODO: get_initdefault
- START_CMD=( /etc/rc.d/rc $init_default )
- test ! -x "$vdir/etc/init.d/rc" || {
- START_CMD=( /etc/init.d/rc $init_default )
- }
-
- test -e "$vdir"/flags || return 0
-
- while read flag; do
- case x"$flag" in
- x|x#) ;;
- dummy) ;;
- minit|fakeinit)
- CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}" \
- --disconnect --flag --fakeinit )
- case "$flag" in
- minit) START_CMD=( /sbin/minit-start );;
- *) START_CMD=( /sbin/init );;
- esac
- ;;
- *)
- CHCONTEXT_FLAG_OPTS=( "${CHCONTEXT_FLAG_OPTS[@]}"
- --flag "$flag" )
- ;;
- esac
- done <"$vdir"/flags
-}
-
-function _generateChcontextOptions
-{
- local vdir=$1
- local ctx hostname domainname
- local cap_opts
- local flag
-
- {
- read ctx <"$vdir"/context
- read hostname <"$vdir"/hostname
- read domainname <"$vdir"/domainname
- } 2>/dev/null
-
- _generateCapabilityOptions "$vdir"
- _generateFlagOptions "$vdir"
-
- CHCONTEXT_OPTS=( $SILENT_OPT \
- "${CHCONTEXT_FLAG_OPTS[@]}" \
- "${CAP_OPTS[@]}" \
- --secure
- ${ctx:+--ctx "$ctx"} \
- ${hostname:+--hostname "$hostname"} \
- ${domainname:+--domainname "$domainname"} )
-}
-
-
-function enableSingleInterface
-{
- local iface=$1
-
- local dev
- local ip
- local mask
- local bcast
- local name
- local scope
-
- read dev <"$iface"/dev || dev=$dev_default
- read ip <"$iface"/ip || { echo $"Can not read ip for '$iface'" >&3; return 1; }
- read prefix <"$iface"/prefix || prefix=$prefix_default
- read mask <"$iface"/mask || mask=$mask_default
- read bcast <"$iface"/bcast || bcast=$bcast_default
- read name <"$iface"/name
- read scope <"$iface"/scope
-
- test ! -e "$iface"/only_ip || unset dev
-
- if test "$dev"; then
- test "$prefix" || {
- $_MASK2PREFIX "$mask" || prefix=$?
- test "$prefix" != 255
- }
-
- case "$dev" in
- *.*)
- test -d /proc/net/vlan || {
- echo -e $"VLAN device-name used, but vlan subsystem not enabled.\nTry to execute 'modprobe 8021q' before starting the vservers"
- return 1
- }
- test -f /proc/net/vlan || {
- $_VCONFIG add ${dev/./ }
- $_IP addr add 127.0.0.1/8 broadcast 127.255.255.255 dev "$dev"
- $_IP link set "$dev" up
- }
- ;;
- esac
-
- $_IP addr add "$ip${prefix:+/$prefix}" ${bcast:-broadcast +}${bcast:+broadcast "$bcast"} \
- ${name:+label "$dev:$name"} dev "$dev"
- $_IP route add "$ip""${prefix:+/$prefix}" dev "$dev"
- $_IP link set "$dev" up
- fi 2>&3
-}
-
-function setInterfaceDefaults
-{
- read dev_default <"$1"/dev
- read mask_default <"$1"/mask
- read prefix_default <"$1"/prefix
- read bcast_default <"$1"/bcast
-
- test -z "mask_default" -o "$prefix_default" || {
- $_MASK2PREFIX "$mask_default" || prefix_default=$?
- test "$prefix_default" != 255
- }
-}
-
-function enableInterfaces
-{
- local VSERVER_DIR=$1
- local VSERVER_NAME=$2
-
- local iface
-
- local dev_default
- local mask_default
- local bcast_default
- local prefix_default
-
- declare -a all_ips
-
- setInterfaceDefaults 3>&2 2>/dev/null
-
- for iface in "$VSERVER_DIR/interfaces/"*; do
- test -d "$iface" || continue
- test ! -e "$iface"/disabled || continue
-
- enableSingleInterface "$iface" 3>&2 2>/dev/null
- done
-}
-
-
+is_configured=
+is_executed=
+is_started=
+is_mounted=
+is_vshelper_init=
+have_interfaces=
+startsync_pipe=
+have_initcmd=
+
+while test "$#" -gt 0; do
+ case "$1" in
+ (--rescue) INITSTYLE=rescue;;
+ (--rescue-cmd)
+ warning $"\
+The '--rescue-cmd' option is deprecated; just add the the initcmd
+inclusive its arguments to the cmdline."
+ INITCMD_RESCUE=( $2 );
+ have_initcmd=1
+ shift;;
+ (--) shift; break;;
+ (-*) panic $"vserver ... start: unknown option '$1'";;
+ (*) break;
+ esac
+ shift
+done
+
+if test x"$INITSTYLE" = xrescue -a -z "$have_initcmd" -a "$#" -gt 0; then
+ INITCMD_RESCUE=( "$@" )
+fi
+set -e
+trap "cleanup" EXIT
-function generateOptions
-{
- _generateInterfaceList "$1"
- _generateChbindOptions "$1"
- _generateNiceCommand "$1"
- _generateChcontextOptions "$1"
-}
+sanityCheck "$VSERVER_DIR"
-function mountVserver
-{
- local cfgdir=$1
- local vdir=$1/vdir
- local src dst type opts aux
- local mountopts
-
- declare -a mountopts
-
- test -e "$cfgdir"/fstab || return 0
-
- cat "$cfgdir"/fstab | while read src dst type opts aux; do
- test "$src" -a "$dst" -a "$type" -a "$opts" || continue
-
- if test "$type" = "bind"; then
- mountopts=( --bind )
- else
- mountopts=( -type $type -o "$opts" )
- fi
-
- $_CHBIND "${CHBIND_OPTS[@]}" \
- $_MOUNT "${mountopts}" "$src" "$vdir$dst"
- done
-}
+mountRootFS "$VSERVER_DIR"
+generateOptions "$VSERVER_DIR"
-function execScriptlets
-{
- local vdir=$1
- local name=$2
- local flavor=$3
- local i
-
- for i in "$vdir/scripts/$flavor" "$vdir/scripts/$flavor.d"/*; do
- test -f "$i" -a -x "$i" || continue
- "$i" "$flavor" "$name"
- done
-}
+pushd "$VSERVER_DIR" >/dev/null
+execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" prepre-start
+popd >/dev/null
-############################################
+enableInterfaces "$VSERVER_DIR" && have_interfaces=1
-: ${VSERVER_NAME:=$(basename "$VSERVER_DIR")}
+mountVserver "$VSERVER_DIR" && is_mounted=1
+prepareInit "$VSERVER_DIR"
-if test -e "$VSERVER_DIR"/noisy; then
- SILENT_OPT=
+pushd "$VSERVER_DIR"/vdir/ >/dev/null
+execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" pre-start
+popd >/dev/null
+
+test -z "$OPTION_DEFAULTTTY" || setDefaultTTY "$VSERVER_DIR"
+
+pushd "$VSERVER_DIR"/vdir/ >/dev/null
+is_configured=1
+if $_VSERVER_INFO - FEATURE migrate; then
+ ${NICE_CMD[@]} \
+ $_CHBIND "${CHBIND_OPTS[@]}" -- \
+ $_EXEC_ULIMIT "$VSERVER_DIR"/ulimits \
+ $_VCONTEXT --create "${OPTS_VCONTEXT_CREATE[@]}" -- \
+ ${USE_VNAMESPACE:+$_VNAMESPACE --set -- } \
+ $_VLIMIT --dir "$VSERVER_DIR"/rlimits --missingok -- \
+ $_VSCHED --xid self "${OPTS_VSCHED[@]}" -- \
+ $_VUNAME --xid self --dir "$VSERVER_DIR"/uts --missingok -- \
+ "${VSERVER_EXTRA_CMDS[@]}" \
+ $_VUNAME --xid self --set -t context="$VSERVER_DIR" -- \
+ $_VATTRIBUTE --set "${OPTS_VATTRIBUTE[@]}" -- \
+ $_SAVE_CTXINFO "$VSERVER_DIR" \
+ $_ENV -i -- \
+ $_VCONTEXT --migrate-self --endsetup --chroot $SILENT_OPT \
+ "${OPTS_VCONTEXT_MIGRATE[@]}" "${OPTS_VCONTEXT_ENTER[@]}" -- \
+ "${INITCMD_START[@]}"
else
- SILENT_OPT='--silent'
-fi
-
-if isVserverRunning "$VSERVER_DIR"; then
- echo $"vserver '$VSERVER_NAME' already running; aborting..."
- exit 1
+ if test -n "$_IS_FAKEINIT"; then
+ startsync_pipe=$($_MKTEMP /tmp/vserver-start.XXXXXX)
+ $_RM -f "$startsync_pipe"
+ $_MKFIFO -m600 "$startsync_pipe" ## safe, since mkfifo does not follow symlinks
+ fi
+
+ ${NICE_CMD[@]} \
+ $_CHBIND "${CHBIND_OPTS[@]}" \
+ $_EXEC_ULIMIT "$VSERVER_DIR/ulimits" \
+ $_CHCONTEXT_COMPAT "${CHCONTEXT_OPTS[@]}" "${CHCONTEXT_INIT_OPTS[@]}" \
+ $_SAVE_CTXINFO "$VSERVER_DIR" \
+ $_ENV -i -- \
+ $_CHAINECHO "${_IS_FAKEINIT:+$startsync_pipe}" "" \
+ $_CAPCHROOT "${CAPCHROOT_OPTS[@]}" . \
+ "${INITCMD_START[@]}"
+
+ ## the additional synchronization step is needed since vshelper.doInit
+ ## below might be executed before needed context information were
+ ## saved by $_SAVE_CTXINFO
+ ${_IS_FAKEINIT:+cat "$startsync_pipe"} >/dev/null
fi
+is_executed=1
-execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" pre-start
-generateOptions "$VSERVER_DIR"
-enableInterfaces "$VSERVER_DIR" "$VSERVER_NAME"
-
-# TODO: utmp
-
-mountVserver "$VSERVER_DIR"
+"${INITCMD_START_SYNC[@]}"
+popd >/dev/null
-cd "$VSERVER_DIR"/vdir/
+pushd "$VSERVER_DIR"/vdir/ >/dev/null
+execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" post-start
+popd >/dev/null
-"${NICE_CMD[@]}" \
- "$_CHBIND" "${CHBIND_OPTS[@]}" \
- "$_CHCONTEXT" "${CHCONTEXT_OPTS[@]}" \
- "$_SAVE_CTXINFO" "$VSERVER_DIR" \
- "$_CAPCHROOT" "${CAPCHROOT_OPTS[@]}" . "${START_CMD[@]}"
+is_vshelper_init=1
+! vshelper.isEnabled "" "$VSERVER_DIR" || vshelper.doInit "$VSERVER_DIR"
-execScriptlets "$VSERVER_DIR" "$VSERVER_NAME" post-start
+is_started=1