https://github.com/shavo007/lambda-start-rds

Start AWS RDS instances based on tag
https://github.com/shavo007/lambda-start-rds

aws aws-lambda eslint nodejs rds yarn

Last synced: 18 days ago
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Start AWS RDS instances based on tag

• Host: GitHub
• URL: https://github.com/shavo007/lambda-start-rds
• Owner: shavo007
• Created: 2017-07-30T03:18:30.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2017-09-08T11:32:47.000Z (over 7 years ago)
• Last Synced: 2024-11-06T16:50:23.602Z (2 months ago)
• Topics: aws, aws-lambda, eslint, nodejs, rds, yarn
• Language: JavaScript
• Size: 29.3 KB
• Stars: 1
• Watchers: 1
• Forks: 2
• Open Issues: 1
• Metadata Files:
  • Readme: README.md

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README

        


# Scheduled AWS Lambda function to start RDS instances based on tags

This function that runs as a cron job using the serverless schedule event. For more information on schedule event check out the Serverless docs on schedule.

Schedule events use the rate or cron syntax.

## Cron syntax

```pseudo

cron(Minutes Hours Day-of-month Month Day-of-week Year)

```

All fields are required and time zone is UTC only.

| Field         | Values         | Wildcards     |

| ------------- |:--------------:|:-------------:|

| Minutes       | 0-59           | , - * /       |

| Hours         | 0-23           | , - * /       |

| Day-of-month  | 1-31           | , - * ? / L W |

| Month         | 1-12 or JAN-DEC| , - * /       |

| Day-of-week   | 1-7 or SUN-SAT | , - * ? / L # |

| Year          | 1970-2199      | , - * /       |

Read the [AWS cron expression syntax](http://docs.aws.amazon.com/lambda/latest/dg/tutorial-scheduled-events-schedule-expressions.html) docs for more info on how to setup cron

**The function is scheduled to execute at 21:00 SUN-THU/UTC time (This is every weekday morning in Melbourne)**

## Setup

Run `nvm use` to get the correct version of node

* Install yarn `curl -o- -L https://yarnpkg.com/install.sh | bash`

* Install serverless globally `npn install -g serverless`

## Building

Run `yarn` after

## Deploying

In order to deploy the function run:

`yarn deploy:full`

There is no additional step required. Your defined schedule becomes active right away after deployment.

## Usage

To test function locally and view the results run:

`yarn invoke`

### Update dependencies

`yarn upgrade-interactive`

## Blog post

https://blog.shanelee.name/2017/07/28/how-to-save-costs-with-serverless-and-aws-lambda/