Sometimes, for practical reasons, you may need to allow something with a known security issue to continue to be deployed in an environment. You can do this using exceptions.
Your team can create exceptions when the need arises.
When a new exception is discovered such as through a nightly image rescan, you may want automatically provide teams with a certain amount of time (lets say a week) before it would block their deployments. This can be done through the use of a temporary exception.
To enable this feature, you need to edit the policy that is setup for your cluster(s) and check the box (see below) and set how many days the temporary exceptions should be active.
When new temporary exceptions are created, it will email all of your admins to review and decide what to do. They should notify your software development teams if the issue should be resolved right away and/or change the end date on the exception.
Active: Active exceptions are the only exceptions that will be used when validating image compliance, and only if the current date is within the exception’s start and end date.
In Review: When an exception is submitted for review, it will be in this status. It will not be used when validating an image’s compliance, but someone should review to decide whether it is a risk your organization is willing to take.
Inactive: The exception will be ignored when validating image compliance.
When viewing an image, if a team member who is NOT an admin believes an exception is required, they can request an exception. This exception falls into the In Review status and will not be active, but it does provide a forum for your team to request exceptions and for someone else (such as your security/ops team) to review and approve the exception. They would approve the exception by changing its status to Active.
Exception types are available as options: Policy and Override.
- Policy: Allow listed policy(s) to be bypassed. When this type is chosen, user should also select scanner(s) and policy(s) for the desired exception.
- Override: When this type is chosen, user should select an alternate severity level for desired exception.