fast-rds

fast-rds is a proof-of-concept CLI tool designed to streamline AWS RDS database creation using configuration files and code generation.

Demo

!automate command

The !automate [option] command will create the database given the config JSON file in the ./configs/ directory. Then, once the database status is Available, it will generate an SQL file based on the JSON schema file in the ./schemas/ directory. Once the SQL is generated, it will execute it on the database and then make the database no longer publicly accessible in AWS.

Instance Configuration

When automated, the database instance is configured with the values from a file in the ./configs/ directory.

Example:

{
    "DBInstanceIdentifier": "my-example-db",
    "DBInstanceClass": "db.t2.micro",
    "Engine": "postgres",
    "Port": 5432,
    "StorageType": "gp2",
    "AllocatedStorage": 100,
    "DBName": "test",
    "MasterUsername": "postgres",
    "MasterUserPassword": "password"
}

A full list of RDS configuration parameters is provided in the ./configs/example.json file.

JSON Schema to PostgreSQL

After the database is created, the schema provided in ./schemas/ is used to generate a .sql file.

Schema:

{
  "table": [
    { "field": "id", "type": "uuid", "primary_key": true },
    { "field": "email", "type": "text", "unique": true, "not_null": true, "personal_data": true },
    { "field": "name", "type": "text", "not_null": true, "personal_data": true },
    { "field": "created_at", "type": "date", "default": "Now()", "not_null": true },
    { "field": "updated_at", "type": "date", "default": "Now()", "not_null": true },
    { "field": "active", "type": "boolean", "not_null": true, "default": true }
  ],
  "description": "This table contains sensitive user information."
}

Generates:

-- Create new table for example database
CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
CREATE TABLE IF NOT EXISTS example (
	id uuid DEFAULT uuid_generate_v4(),
	email VARCHAR(50) UNIQUE NOT NULL,
	name VARCHAR(50) NOT NULL,
	created_at TIMESTAMPTZ NOT NULL DEFAULT Now(),
	updated_at TIMESTAMPTZ NOT NULL DEFAULT Now(),
	active BOOLEAN NOT NULL DEFAULT 't',
	PRIMARY KEY (id)
);
COMMENT ON COLUMN example.email IS 'personal_data';
COMMENT ON COLUMN example.name IS 'personal_data';
COMMENT ON TABLE example IS 'This table contains sensitive user information.';

Getting Started

Prerequisites

Python 3

This project was created using Python 3.8.5, please download and install the latest Python version.

AWS CLI

In order to run fast-rds, you must have the latest AWS CLI version installed and configured.

You may select and install AWS CLI here.

To configure your AWS CLI, use aws configure once installed.

Note: It is recommended that you configure your AWS CLI based on an IAM user's security credentials.

Requirements Installation

Run the following to install all the requirements:

pip install -r requirements.txt

Explanation of Package Usage:

• boto3 - Use AWS in Python
• psycopg2 - Connect and Execute Postgresql in Python
• progress - Progress/Loading Bar
• colorama - Text color support for Windows Command Prompt/Linux Terminals
• js-regex - Use JavaScript regex in Python

Copy and Modify Example Files

Once your project is ready to run, copy the example.json file in both ./configs/ and ./schemas/ then rename and modify the values to your preference.

Run the Project

While in the directory of fast_rds.py, run the project using python.exe fast_rds.py [command] [option].

Currently, these are the supported commands:

• !automate [option] - Where option is the name of the config and schema file excluding the .json extension.
• !create - There are no options needed, this command provides the same functionality as !automate [option] but is a more hand-held experience.
• !more - This command is only used when prompted for input during the !create command.

See the section below for more information.

Additional Commands

While the !automate [option] command is great for when both your configuration file and schema file is ready, you can always use the !create command to have a more hand-held experience.

!create command

Using !create with config

The !create command will initially ask if you want to create with or without a config, type 'y' to create with a config. You will have a chance to confirm your configuration. Upon confirmation, the database will be created. Once the database status is Available, you will be prompted to enter the name of a schema file (excluding .json) which is located in the ./schemas/ directory. Once the schema is entered, an SQL file will be generated and will be executed on the database. Finally, the database will be made no longer publicly available in AWS.

Using !create without config

The !create command will initially ask if you want to create with or without a config, type 'n' to create without a config. You will be asked to enter the bare minimum of values required to create an RDS instance. Then, you will have a chance to confirm your configuration. Upon confirmation, the database will be created. Once the database status is Available, you will be prompted to enter the name of a schema file (excluding .json) which is located in the ./schemas/ directory. Once the schema is entered, an SQL file will be generated and will be executed on the database. Finally, the database will be made no longer publicly available in AWS.

Using !more during !create

The !more command will print a description and valid values for the option you are being prompted during !create (without config).

To Do

Missing Features

More DB Engine Support

This tool currently only supports generating SQL files for a Postgresql database. However, the !create command is perfect for creating RDS databases with the other available engine types.

Security Group Creation and Modification

This tool currently allows you to pass a pre-defined security group in the ./configs/ file. However, a new feature could generate a new security group with inbound traffic open so that the SQL can be executed and after execution the security group could be modified to remove inbound traffic accessibility.

More?

Please let me know if any more features should be added.