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#!/bin/sh
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# ganeti node daemon starter script
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# based on skeleton from Debian GNU/Linux
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### BEGIN INIT INFO
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# Provides:          ganeti
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# Required-Start:    $syslog $remote_fs xend
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# Required-Stop:     $syslog $remote_fs xend
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# Default-Start:     2 3 4 5
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# Default-Stop:      0 1 6
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# Short-Description: Ganeti Xen Cluster Manager
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# Description:       Ganeti Xen Cluster Manager
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### END INIT INFO
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PATH=/sbin:/bin:/usr/sbin:/usr/bin:/usr/local/sbin:/usr/local/bin
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DESC="Ganeti cluster"
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GANETIRUNDIR="@LOCALSTATEDIR@/run/ganeti"
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NODED_NAME="ganeti-noded"
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NODED="@PREFIX@/sbin/${NODED_NAME}"
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NODED_PID="${GANETIRUNDIR}/${NODED_NAME}.pid"
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MASTERD_NAME="ganeti-masterd"
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MASTERD="@PREFIX@/sbin/${MASTERD_NAME}"
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MASTERD_PID="${GANETIRUNDIR}/${MASTERD_NAME}.pid"
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RAPI_NAME="ganeti-rapi"
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RAPI="@PREFIX@/sbin/${RAPI_NAME}"
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RAPI_PID="${GANETIRUNDIR}/${RAPI_NAME}.pid"
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SCRIPTNAME="@SYSCONFDIR@/init.d/ganeti"
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test -f $NODED || exit 0
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. /lib/lsb/init-functions
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check_config() {
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    for fname in \
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        "@LOCALSTATEDIR@/lib/ganeti/server.pem"
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    do
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        if ! [ -f "$fname" ]; then
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            log_end_msg 0
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            log_warning_msg "Config $fname not there, will not run."
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            exit 0
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        fi
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    done
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}
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check_exitcode() {
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    RC=$1
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    case $RC in
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        0)
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            log_action_end_msg 0
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            ;;
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        11)
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            log_action_end_msg 0 "not master"
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            ;;
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        *)
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            log_action_end_msg 1 "exit code $RC"
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            ;;
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    esac
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}
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start_action() {
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    # called as start_action daemon pidfile
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    local daemon="$1"; shift
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    local pidfile="$2"; shift
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    log_action_begin_msg "$daemon"
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    start-stop-daemon --start --quiet --exec "$daemon" --pidfile "$pidfile" \
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        -- "$@"
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    check_exitcode $?
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}
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stop_action() {
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    # called as stop_action daemon pidfile
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    log_action_begin_msg "$1"
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    start-stop-daemon --stop --quiet --oknodo \
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        --retry 30 --pidfile "$2"
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    check_exitcode $?
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}
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case "$1" in
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    start)
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        log_daemon_msg "Starting $DESC" "$NAME"
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        check_config
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        start_action $NODED $NODED_PID
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        start_action $MASTERD $MASTERD_PID
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        start_action $RAPI $RAPI_PID
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     ;;
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    stop)
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        log_daemon_msg "Stopping $DESC" "$NAME"
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        stop_action $RAPI $RAPI_PID
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        stop_action $MASTERD $MASTERD_PID
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        stop_action $NODED $NODED_PID
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    ;;
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    restart|force-reload)
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        log_daemon_msg "Reloading $DESC"
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        stop_action $RAPI $RAPI_PID
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        stop_action $MASTERD $MASTERD_PID
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        stop_action $NODED $NODED_PID
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        check_config
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        start_action $NODED $NODED_PID
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        start_action $MASTERD $MASTERD_PID
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        start_action $RAPI $RAPI_PID
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     ;;
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    *)
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        log_success_msg "Usage: $SCRIPTNAME {start|stop|force-reload|restart}"
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        exit 1
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    ;;
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esac
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exit 0