Chapter 22. Performing health checks on Red Hat Quay deployments Health check mechanisms are designed to assess the health and functionality of a system, service, or component. Health checks help ensure that everything is working correctly, and can be used to identify potential issues before they become critical problems. By monitoring the health of a system, Red Hat Quay administrators can address abnormalities or potential failures for things like geo-replication deployments, Operator deployments, standalone Red Hat Quay deployments, object storage issues, and so on. Performing health checks can also help reduce the likelihood of encountering troubleshooting scenarios. Health check mechanisms can play a role in diagnosing issues by providing valuable information about the system's current state. By comparing health check results with expected benchmarks or predefined thresholds, deviations or anomalies can be identified quicker. 22.1. Red Hat Quay health check endpoints Important Links contained herein to any external website(s) are provided for convenience only. Red Hat has not reviewed the links and is not responsible for the content or its availability. The inclusion of any link to an external website does not imply endorsement by Red Hat of the website or its entities, products, or services. You agree that Red Hat is not responsible or liable for any loss or expenses that may result due to your use of (or reliance on) the external site or content. Red Hat Quay has several health check endpoints. The following table shows you the health check, a description, an endpoint, and an example output. Table 22.1. Health check endpoints Health check Description Endpoint Example output instance The instance endpoint acquires the entire status of the specific Red Hat Quay instance. Returns a dict with key-value pairs for the following: auth , database , disk_space , registry_gunicorn , service_key , and web_gunicorn. Returns a number indicating the health check response of either 200 , which indicates that the instance is healthy, or 503 , which indicates an issue with your deployment. https://{quay-ip-endpoint}/health/instance or https://{quay-ip-endpoint}/health {"data":{"services":{"auth":true,"database":true,"disk_space":true,"registry_gunicorn":true,"service_key":true,"web_gunicorn":true}},"status_code":200} endtoend The endtoend endpoint conducts checks on all services of your Red Hat Quay instance. Returns a dict with key-value pairs for the following: auth , database , redis , storage . Returns a number indicating the health check response of either 200 , which indicates that the instance is healthy, or 503 , which indicates an issue with your deployment. https://{quay-ip-endpoint}/health/endtoend {"data":{"services":{"auth":true,"database":true,"redis":true,"storage":true}},"status_code":200} warning The warning endpoint conducts a check on the warnings. Returns a dict with key-value pairs for the following: disk_space_warning . Returns a number indicating the health check response of either 200 , which indicates that the instance is healthy, or 503 , which indicates an issue with your deployment. https://{quay-ip-endpoint}/health/warning {"data":{"services":{"disk_space_warning":true}},"status_code":503} 22.2. Navigating to a Red Hat Quay health check endpoint Use the following procedure to navigate to the instance endpoint. This procedure can be repeated for endtoend and warning endpoints. Procedure On your web browser, navigate to https://{quay-ip-endpoint}/health/instance . You are taken to the health instance page, which returns information like the following: {"data":{"services":{"auth":true,"database":true,"disk_space":true,"registry_gunicorn":true,"service_key":true,"web_gunicorn":true}},"status_code":200} For Red Hat Quay, "status_code": 200 means that the instance is health. Conversely, if you receive "status_code": 503 , there is an issue with your deployment.

Commands:
{"data":{"services":{"auth":true,"database":true,"disk_space":true,"registry_gunicorn":true,"service_key":true,"web_gunicorn":true}},"status_code":200}