How to setup health check for elastic beanstalk single/worker environment

Question

I want to run the background jobs on a separate Elastic Beanstalk environment. I created an EB environment for workers - with a single instance (no load balancer). The application seems to be working fine on the server, but the health check is always "red"...

I knew how to set up the health check for the load balancer environment, but for the single-instance environment, there is no place to set up the health configs... How can I set up the health for a single instance?

Answer

> 💡 For single-instance environments, [Elastic Beanstalk directly monitors the health of the EC2 instance without a load balancer](https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.healthstatus.html#monitoring-basic-healthcheck-singleinstance). This means the setup and management of health checks are handled differently, primarily through instance status checks rather than the load balancer's health checks.

> ℹ️ If your health checks are showing red, it indicates that your environment has failed three or more health checks, or a critical resource within the environment has become unavailable. This status typically means that requests are consistently failing.

> ⚡ Verify that the security groups are properly configured to allow AWS to access the necessary ports for health checks. Typically, health checks are performed on the HTTP port that your application listens on, which is often port `80` for HTTP or port `443` for HTTPS.

How to setup health check for elastic beanstalk single/worker environment

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