[RFC PATCH 1/3] drbd.ocf: replace crm_master with ocf_promotion_score

[Su Yue <glass.su@suse.com>]

The crm_master command has been deprecated and replaced with a new
crm_attribute --promotion option that defaults to --lifetime=reboot
(example: crm_master -l reboot -v 10 becomes
crm_attribute --promotion -v 10. The old command will still work for
now, but the new one should be used if available. The new option is
available as of CRM feature set 3.9.0).

Also define ocf_promotion_score() as
resource-agents/heartbeat/ocf-shellfuncs.in if it doesn't exist.

Signed-off-by: Su Yue <glass.su@suse.com>
---
 scripts/drbd.ocf | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/scripts/drbd.ocf b/scripts/drbd.ocf
index 1d051baa550d..133aff737455 100755
--- a/scripts/drbd.ocf
+++ b/scripts/drbd.ocf
@@ -104,6 +104,18 @@ if ! command -v ocf_is_true &> /dev/null ; then
 	}
 fi
 
+if ! command -v ocf_promotion_score &> /dev/null ; then
+	ocf_promotion_score() {
+		ocf_version_cmp "$OCF_RESKEY_crm_feature_set" "3.10.0"
+		res=$?
+		if [ $res -eq 2 ] || [ $res -eq 1 ] || ! have_binary "crm_master"; then
+			${HA_SBIN_DIR}/crm_attribute -p ${OCF_RESOURCE_INSTANCE} $@
+		else
+			${HA_SBIN_DIR}/crm_master -l reboot $@
+		fi
+	}
+fi
+
 # Defaults
 OCF_RESKEY_drbdconf_default="/etc/drbd.conf"
 OCF_RESKEY_unfence_extra_args_default="--quiet --flock-required --flock-timeout 0 --unfence-only-if-owner-match"
@@ -570,9 +582,9 @@ do_drbdadm() {
 unset current_master_score
 get_current_master_score()
 {
-	# only call crm_master once
+	# only call get crm master once
 	[[ ${current_master_score+set} ]] ||
-	current_master_score=$(crm_master -q -l reboot -G 2>/dev/null)
+	current_master_score=$(ocf_promotion_score -q -G 2>/dev/null)
 	# return value of this function:
 	# true if master_score is present
 	# false if master_score is not present
@@ -585,13 +597,13 @@ set_master_score() {
 	if [[ $1 -le 0 ]]; then
 		remove_master_score
 	else
-		do_cmd ${HA_SBIN_DIR}/crm_master -Q -l reboot -v $1 &&
+		do_cmd ocf_promotion_score -Q -v $1 &&
 		current_master_score=$1
 	fi
 }
 
 remove_master_score() {
-	do_cmd ${HA_SBIN_DIR}/crm_master -l reboot -D
+	do_cmd ocf_promotion_score -D
 	current_master_score=""
 }
 
-- 
2.45.2