source: trunk/packages/sipb-xen-console/debian/sipb-xen-console.init @ 853

#!/bin/bash
### BEGIN INIT INFO
# Provides:          sipb-xen-console
# Required-Start:    $local_fs $remote_fs
# Required-Stop:     $local_fs $remote_fs
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: sipb-xen Console Server homedir filesystem
# Description:       
### END INIT INFO

# Author: SIPB Xen Project <sipb-xen@mit.edu>

# Do NOT "set -e"

# PATH should only include /usr/* if it runs after the mountnfs.sh script
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="The sipb-xen console server"
NAME=sipb-xen-console
DAEMON=/usr/bin/sipb-xen-consolefs
DAEMON_ARGS="/consolefs"
PIDFILE=/var/run/$NAME.pid
SCRIPTNAME=/etc/init.d/$NAME

# Exit if the package is not installed
[ -x "$DAEMON" ] || exit 0

# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME

# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh

# Define LSB log_* functions.
# Depend on lsb-base (>= 3.0-6) to ensure that this file is present.
. /lib/lsb/init-functions

gen_config()
{
    {
        for i in $(invirt-getconf --ls hosts); do
            local hostname=$(invirt-getconf hosts.$i.hostname)
            echo "#include /etc/conserver/conf.d/$hostname"
        done
    } > /etc/conserver/invirt-hosts.cf
    local realm=$(invirt-getconf authn.0.realm)
    {
        for i in $(invirt-getconf --ls hosts); do
            local hostname=$(invirt-getconf hosts.$i.hostname)
            echo "host/$hostname@$realm"
        done
    } > /etc/remctl/acl/invirt-console

    cat > /etc/nss-pgsql.conf << EOF
host            = $(invirt-getconf db.host)
port            = $(invirt-getconf db.port)
database        = $(invirt-getconf db.dbname)
login           = $(invirt-getconf db.user)

querypasswd = SELECT name, NULL, machine_id + 1000 as uid, machine_id + 1000 as gid, '', '/consolefs/'|| name, '/usr/bin/sipb-xen-consolesh' FROM machines
querygroup = SELECT name, NULL, machine_id + 1000 as gid FROM machines
querymembers = SELECT name FROM machines WHERE 1000 + machine_id = %d
queryids = SELECT 1000 + machine_id AS gid FROM machines LIMIT 0

passwd_name = name
passwd_uid = 1000 + machine_id

group_name = name
group_gid = 1000 + machine_id
EOF

    fmt > /etc/issue.net.no_tkt << EOF
You must login to the $(invirt-getconf console.hostname) console server using
Kerberos tickets, but your ssh client did not pass a valid ticket to the
console server.
EOF
}

#
# Function that starts the daemon/service
#
do_start()
{
        # Return
        #   0 if daemon has been started
        #   1 if daemon was already running
        #   2 if daemon could not be started
        modprobe fuse
        gen_config
        daemon --running -n $NAME && return 1
        daemon -r -O daemon.info -E daemon.err -n $NAME -U $DAEMON $DAEMON_ARGS || return 2
}

#
# Function that stops the daemon/service
#
do_stop()
{
        # Return
        #   0 if daemon has been stopped
        #   1 if daemon was already stopped
        #   2 if daemon could not be stopped
        #   other if a failure occurred
        daemon --stop -n $NAME
        RETVAL="$?"
        [ "$RETVAL" = 2 ] && return 2
        # Many daemons don't delete their pidfiles when they exit.
        rm -f $PIDFILE
        umount "$DAEMON_ARGS"
        return "$RETVAL"
}

do_reload()
{
        gen_config
        /etc/init.d/conserver-server reload
}

case "$1" in
  start)
        [ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
        do_start
        case "$?" in
                0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
        esac
        ;;
  stop)
        [ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
        do_stop
        case "$?" in
                0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
                2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
        esac
        ;;
  reload|force-reload)
        log_daemon_msg "Reloading $DESC" "$NAME"
        do_reload
        log_end_msg $?
        ;;
  restart)
        log_daemon_msg "Restarting $DESC" "$NAME"
        do_stop
        case "$?" in
          0|1)
                do_start
                case "$?" in
                        0) log_end_msg 0 ;;
                        1) log_end_msg 1 ;; # Old process is still running
                        *) log_end_msg 1 ;; # Failed to start
                esac
                ;;
          *)
                # Failed to stop
                log_end_msg 1
                ;;
        esac
        ;;
  *)
        echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
        exit 3
        ;;
esac

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