health

health enables a simple health check endpoint.

By default, it listens on port 8080.

Syntax

health [ADDRESS]

Optionally takes an address; the default is :8080. The health path is fixed to /health. The health endpoint returns a 200 response code and the word "OK" when CoreDNS is healthy. It returns a 503. health periodically (1s) polls plugin that exports health information. If any of the plugin signals that it is unhealthy, the server will go unhealthy too. Each plugin that supports health checks has a section "Health" in their README.

Examples

Run another health endpoint on http://localhost:8091.

. {
    health localhost:8091
}