Option for health check by default "healthy"

[melroy89]

Prerequisites

• [X] I have written a descriptive issue title
• [X] I have searched existing issues to ensure the feature has not already been requested

🚀 Feature Proposal

Give the user the option to change the default state of the health-check to be healthy. Meaning in case of a new deployment, the server can be reached directly if needed, without waiting on the healthCheckInterval.

Motivation

I run the server with cluster support, and I want to increase the healthCheckInterval to reduce the load for health checks on my database. However, increasing the internal will cause 503 to be present for longer during start-up.

Example

Introducing a new option for example, like: healthCheckDefaultHealthy (default value is false to be backwards compatible):

{
       maxEventLoopDelay: 1000,
       healthCheckDefaultHealthy: true
}