Let's try this...

scripts/mysql_setup.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+mysql_secure_installation << EOF
+
+y
+Password1234
+Password1234
+y
+y
+y
+y
+EOF
+
+
+
+
+#UPDATE mysql.user SET authentication_string=PASSWORD('Password1234') WHERE User='root';
+#DELETE FROM mysql.user WHERE User='root' AND Host NOT IN ('localhost', '127.0.0.1', '::1');
+#DELETE FROM mysql.user WHERE User='';
+#DELETE FROM mysql.db WHERE Db='test' OR Db='test_%';
+#FLUSH PRIVILEGES;