public ContainerGroupDefinition withOperatingSystem(String operatingSystem) {
        setOperatingSystem(operatingSystem);
        return this;
    }
<p>
The platform required for all containers in the container group definition.
</p>

@param operatingSystem
       The platform required for all containers in the container group definition.
@return Returns a reference to this object so that method calls can be chained together.
@see ContainerOperatingSystem
aws-java-sdk-gamelift/src/main/java/com/amazonaws/services/gamelift/model/ContainerGroupDefinition.java