Fix pacemaker cluster configuration

* replaces crm with crm_attribute, crm is a separate tool which is not
  available for redhat distros. crm_attribute should be available in all
  supported distros.
* cluster configuration is done only once on bootstrap host
* adds sleep to let pacemaker start up properly

Change-Id: Ie14fd68a49d7312d3817c25a305eca7a2aa9c9cf

elements/pacemaker/element-deps

@@ -1,4 +1,5 @@
 corosync
 os-apply-config
+os-is-bootstrap-host
 os-refresh-config
 os-svc-install

elements/pacemaker/os-refresh-config/post-configure.d/15-pacemaker

@@ -4,3 +4,9 @@ set -eux
 os-svc-enable -n pacemaker
 
 os-svc-restart -n pacemaker
+
+# Give pacemaker some time to boot up, otherwise configuration commands
+# time out. The issue is tracked here:
+# https://bugzilla.redhat.com/show_bug.cgi?id=1111747
+# This workaround can be removed once the issue above is fixed.
+sleep 30

elements/pacemaker/os-refresh-config/post-configure.d/16-base-opts-pacemaker

@@ -2,10 +2,12 @@
 
 set -eu
 
-QUORUM_POLICY=$(os-apply-config --key pacemaker.quorum_policy --type raw --key-default ignore)
-RECHECK_INTERVAL=$(os-apply-config --key pacemaker.recheck_interval --type raw --key-default 5)
-STONITH_ENABLED=$(os-apply-config --key pacemaker.stonith_enabled --type raw --key-default false)
+if os-is-bootstrap-host; then
+  QUORUM_POLICY=$(os-apply-config --key pacemaker.quorum_policy --type raw --key-default ignore)
+  RECHECK_INTERVAL=$(os-apply-config --key pacemaker.recheck_interval --type raw --key-default 5)
+  STONITH_ENABLED=$(os-apply-config --key pacemaker.stonith_enabled --type raw --key-default false)
 
-crm configure property no-quorum-policy=$QUORUM_POLICY \
-    cluster-recheck-interval=$RECHECK_INTERVAL"min" \
-    stonith-enabled=$STONITH_ENABLED
+  crm_attribute -t crm_config -n stonith-enabled -v $STONITH_ENABLED
+  crm_attribute -t crm_config -n no-quorum-policy -v $QUORUM_POLICY
+  crm_attribute -t crm_config -n cluster-recheck-interval -v "${RECHECK_INTERVAL}min"
+fi