Java EE 8 Design Patterns and Best Practices

Testing the application and verifying whether it satisfies our criteria

In this step, the application is tested to verify whether or not our criteria are satisfied. This is done by evaluating certain processes, such as integrating with other applications, CPU, memory, disk usage, and database connection. These tests can be done through an automation test, an internal user, or through a few end users. If an error is found in this step, the deployment is aborted and rolled back and the canary servers receive the old version, which is then made available to end users.