microservice connection checker

This is a simple Sinatra application that provides endpoints to check the connection to a PostgreSQL database and a Redis instance.

Endpoints

• /: Welcome message and available routes.
• /check/db: Check the connection to the PostgreSQL database.
• /check/redis: Check the connection to the Redis instance.

Setup

Prerequisites

• Docker
• PostgreSQL
• Redis

Environment Variables

The following environment variables need to be set:

• POSTGRESQL_DATABASE: The name of the PostgreSQL database.
• POSTGRESQL_USERNAME: The username for the PostgreSQL database.
• POSTGRESQL_PASSWORD: The password for the PostgreSQL database.
• POSTGRESQL_ADDRESS: The host address of the PostgreSQL database.
• POSTGRESQL_PORT: The port of the PostgreSQL database.
• REDIS_URL: The URL of the Redis instance.
• ENV_SECRET: A secret key used to display environment variables in error responses.

Building the Docker Image

docker build -t microservice-connection-checker .