Unable to use AWS Elastic Beanstalk with Docker to deploy Wordpress

I create a new environment in AWS Elastic Beanstalk, running Docker and import my Dockerrun.aws.json file however it does not deploy correctly. Here's my Dockerrun.aws.json file I upload - Can anyone tell me what's wrong with it?

{
"AWSEBDockerrunVersion": "1",
"Image": {
    "Name": "wordpress"
},
"Ports": [
    {
        "ContainerPort": "80"
    }
]
}