ctdb/events: add 47.samba-dcerpcd.script

If someone wants to enable the witness service
samba-dcerpcd needs to be started as standalone service

BUG: https://bugzilla.samba.org/show_bug.cgi?id=15577

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Guenther Deschner <gd@samba.org>
(cherry picked from commit f1f68108cc303b92b8a88728d12c2b699fdfc731)

diff --git a/ctdb/config/events/legacy/47.samba-dcerpcd.script b/ctdb/config/events/legacy/47.samba-dcerpcd.script
new file mode 100755 (executable)
index 0000000..9492d55
--- /dev/null
+++ b/ctdb/config/events/legacy/47.samba-dcerpcd.script
@@ -0,0 +1,66 @@
+#!/bin/sh
+# ctdb event script for SAMBA DCERPCD Services
+
+[ -n "$CTDB_BASE" ] || \
+       CTDB_BASE=$(d=$(dirname "$0") && cd -P "$d" && dirname "$PWD")
+
+. "${CTDB_BASE}/functions"
+
+detect_init_style
+
+case $CTDB_INIT_STYLE in
+       *)
+               # distributions don't have this yet,
+               # but assume samba-dcerpcd as service name
+               CTDB_SERVICE_SAMBA_DCERPCD=${CTDB_SERVICE_SAMBA_DCERPCD:-samba-dcerpcd}
+               ;;
+esac
+
+load_script_options
+
+service_start ()
+{
+    # make sure samba-dcerpcd is not already started
+    service "$CTDB_SERVICE_SAMBA_DCERPCD" stop > /dev/null 2>&1
+    killall -0 -q samba-dcerpcd && {
+       sleep 1
+       # make absolutely sure samba-dcerpcd is dead
+       killall -q -9 samba-dcerpcd
+    }
+
+    # start Samba dcerpcd service. Start it reniced, as under very heavy load
+    # the number of smbd processes will mean that it leaves few cycles
+    # for anything else
+    nice_service "$CTDB_SERVICE_SAMBA_DCERPCD" start || die "Failed to start samba-dcerpcd"
+}
+
+service_stop ()
+{
+    service "$CTDB_SERVICE_SAMBA_DCERPCD" stop
+}
+
+service_status ()
+{
+    service "$CTDB_SERVICE_SAMBA_DCERPCD" status > /dev/null
+    test $? = 0 && return 0
+    service "$CTDB_SERVICE_SAMBA_DCERPCD" status
+}
+
+###########################
+
+case "$1" in
+startup)
+       service_start
+       ;;
+
+shutdown)
+       service_stop
+       ;;
+
+monitor)
+       service_status
+       ;;
+
+esac
+
+exit 0