Initial support for ntp service via chronyd

setup/so-functions

@@ -486,6 +486,17 @@ collect_node_ls_pipeline_worker_count() {
 	done
 }
 
+collect_ntp_servers() {
+	if [[ $is_airgap || "$NSMSETUP" = 'ADVANCED' || "$MANAGERADV" = 'ADVANCED' ]]; then
+		if whiptail_ntp_ask; then
+			[[ $is_airgap ]] && ntp_servers=""
+			whiptail_ntp_servers "$ntp_servers"
+		else
+			ntp_servers=""
+		fi
+	fi
+}
+
 collect_oinkcode() {
 	whiptail_oinkcode
 
@@ -702,6 +713,38 @@ configure_minion() {
 	} >> "$setup_log" 2>&1
 }
 
+configure_ntp() {
+	local chrony_conf=/etc/chrony.conf
+
+	# Install chrony if it isn't already installed
+	if command -v chronyc &> /dev/null; then
+		if [ "$OS" == centos ]; then
+			yum -y install chrony
+		else
+			retry 50 10 "apt-get -y install chrony" || exit 1
+		fi
+	fi
+
+	[[ -f $chrony_conf ]] && rm -f $chrony_conf
+
+	# Build list of servers
+	for addr in "${ntp_servers[@]}"; do
+		echo "server $addr iburst" >> $chrony_conf
+	done
+
+	printf '%s\n' \
+		'driftfile /var/lib/chrony/drift' \
+		'makestep 1.0 3' \
+		'rtcsync' \
+		'logdir /var/log/chrony' >> $chrony_conf
+
+	systemctl enable chronyd
+	systemctl start chronyd
+
+	# Sync time
+	chronyc -a makestep
+}
+
 checkin_at_boot() {
 	local minion_config=/etc/salt/minion
 
@@ -709,6 +752,12 @@ checkin_at_boot() {
 	echo "startup_states: highstate" >> "$minion_config"
 }
 
+check_ntp_configured() {
+	if systemctl is-active --quiet chronyd || systemctl is-active --quiet ntpd; then
+		ntp_configured=true
+	fi
+}
+
 check_requirements() {
 	local standalone_or_dist=$1
 	local node_type=$2 # optional
@@ -1564,12 +1613,16 @@ manager_global() {
 		"global:"\
 		"  soversion: '$SOVERSION'"\
 		"  hnmanager: '$HNMANAGER'"\
-		"  ntpserver: '$NTPSERVER'"\
 		"  dockernet: '$DOCKERNET'"\
 		"  mdengine: '$ZEEKVERSION'"\
 		"  ids: '$NIDS'"\
 		"  url_base: '$REDIRECTIT'"\
-		"  managerip: '$MAINIP'" > "$global_pillar"
+		"  managerip: '$MAINIP'"
+		"  ntp_servers:" > "$global_pillar"
+
+	for addr in "${ntp_servers[@]}"; do
+		echo "    - '$addr'" >> "$global_pillar"
+	done
 	
 	if [[ $is_airgap ]]; then
 		printf '%s\n'\