t2.micro is enought, because this rds needs a few data and accesses.

…p for RevieeeDB

rds will be accessed by nginx, and nginx instance has RevieeeAppServerSecurityGroup

1 GB storage is enough for Revieee, because our service is less than 100,000 record even if all the tables are combined.

…vieeeDB

MasterUsername and MasterUserPassword cannot set the value to cloudformation because of security.

so that these necessary parameter are not lacking

…BPassword

there is no big problem if records are deleted in our service.

….6.35 is latest version

…erformance storage for our service

…b4 to use japanese character.

…SecurityGroups

…netGroups

since App Server is too little.

…ploy command

…esource

…esource

…t creates

bugfix bellow error

```
Failed to create the changeset: Waiter ChangeSetCreateComplete failed: Waiter encountered a terminal failure state Status: FAILED. Reason: Circular dependency between resources: [EcsSpotFleetRequest]
```

`Circular dependency between resources: [EcsSpotFleetRequest]`