CONTAINER IMAGES

Examples described relate to container images. In an example, a mapping of respective unique identifiers of container images of a software container and respective metadata of the container images may be generated. The mapping may be validated against a rule to identify a unique identifier of a mapped container image that meets the rule, wherein the rule may specify an action to be performed on the mapped container image in an event the mapped container image meets a condition defined in the rule for performing the action. A target mapping that includes the unique identifier of the mapped container image that meets the rule and the action specified in the rule may be generated. The action specified in the rule may be performed on the mapped container image corresponding to the unique identifier in the target mapping.