Endpoint Healthcheck

╭─────╮           | |__   ___  __ _| | |_| |__   / __\ /\  /\/__\/ __\ /\ /\
│ c r │           | '_ \ / _ \/ _` | | __| '_ \ / /   / /_/ /_\ / /   / //_/
│ n n │ cronn     | | | |  __/ (_| | | |_| | | / /___/ __  //__/ /___/ __ \ 
╰─────╯           |_| |_|\___|\__,_|_|\__|_| |_\____/\/ /_/\__/\____/\/  \/ 

This serverless function checks the health of multiple HTTP(S) endpoints. It

• checks HTTP(S) endpoint availability, return code, and content
• is configurable by a JSON file stored on S3
• runs as cron job once per minute
• publishes notifications to SNS, so you can get mail notifications
• saves state on S3
• costs only a few cents per month.

Setup

• Install global dependencies: npm install -g serverless tslint typescript
• Install local dependencies: npm install
• Configure your AWS credentials (https://serverless.com/framework/docs/providers/aws/guide/credentials/)
• Create a S3 bucket
• Create SNS topics
• Subscribe mail addresses to the SNS topics
• Modify config.json and upload it to your S3 bucket

Deploy the serverless function: serverless deploy --stage [dev, prod, ...] --s3bucket [your bucket name here]

Done!

Info: The default AWS region is eu-central-1.

Test Locally

serverless invoke local -f healthcheck --s3bucket [your bucket name here]