added dockerignore

added wait for db before app started

wait.sh

@@ -1,7 +1,13 @@
 #!/bin/bash
 
+HOST="mysql"
+PORT="3306"
+USER="default"
+PASSWORD="secret"
+DATABASE="default"
+
 echo "Waiting for mysql"
-until mysql -h"$MYSQL_PORT_3306_TCP_ADDR" -P"$MYSQL_PORT_3306_TCP_PORT" -uroot -p"$MYSQL_ENV_MYSQL_ROOT_PASSWORD" &> /dev/null
+until nc -w 1 -z mysql 3306 &> /dev/null
 do
   printf "."
   sleep 1