Application Setup
Health Checks

The Convox deployment process depends on application Health Checks to determine success.

If the Process exposes a port is it considered healthy after it passes a certain number of HTTP health checks.


      grace: 5
      interval: 5
      path: /health
      timeout: 3


Label Notes
grace The amount of time to wait for a service to boot before beginning health checks.
interval The amount of time between health checks (default 5 seconds).
path The HTTP endpoint the load balancer will use to determine the application's health.
timeout The time in seconds after which no response means a failed health check (defaults to interval minus 1).

Common Failures

  • The cluster does not have sufficient memory or CPU resources available to start a new process
  • The cluster does not have sufficient instances where a new process port is not already reserved by an older release
  • A process crashes immediately after starting due to a problem in the latest code
  • A process takes too long to initialize its server and therefore fails a network health check
  • Returning a status code outside the acceptable (200-399,401) range

See also