Service Availability Health Check - SAHC

About

SAHC aka Service Availability Health Check is a service used to check the availability of services and provide much needed actions and events to handle it. SAHC is a background runner service which will periodically run to check the status of given services.

Features

• SACH is a stateless application with inbuilt Leveldb for managing the status of services.
• Provides hot re-loading of configurations.
• API endpoints to access and update the configurations.
• YAML support for configurations.
• TCP streaming for realtime monitoring data and healthz endpoint for health checks.

Configuration

1. YAML

The example of YAML configuration is as follows.

version: 0.1
services:
  - name: localhost:9990
    interval: 10
  - name: localhost:9991
    interval: 11
  - name: localhost:9992
    interval: 16

services describe all the services you need to keep checking.

Services takes in an array and consist of

• name : The host address.
• interval: The health check interval in seconds.

Note:
You need to set the env variable SAHC_CONFIG to pass the configuration file name. If not the service will fail running..

[working on documenting better..]