check docker status in every seconds instead of sleep

install.sh

@@ -197,8 +197,19 @@ check_running() {
 		DOCKERD_STATUS=$($SUDO_CMD systemctl status docker | grep running | wc -l)
 		if [ "$DOCKERD_STATUS" == "0" ]; then
 			$SUDO_CMD systemctl start docker
-			sleep 5;
-			DOCKERD_STATUS=$($SUDO_CMD systemctl status docker | grep running | wc -l)
+
+			# wait for docker start, check in every seconds, run for max. 60 sec
+			WAIT_COUNT=0;
+			while [ "$DOCKERD_STATUS" == "0" ]; do
+				sleep 1;
+				WAIT_COUNT=$((WAIT_COUNT+1))
+				DOCKERD_STATUS=$($SUDO_CMD systemctl status docker | grep running | wc -l)
+
+				if [ $WAIT_COUNT -gt 60 ]; then
+					break; # docker hasn't started in 60 seconds
+				fi;
+			done;
+
 			if [ "$DOCKERD_STATUS" == "0" ]; then 
 				echo "Docker daemon not running, please check and execute again the install script";
 				exit;