How to deploy mongoDB Docker image to Elastic Beanstalk?

Now several months later, this is possible by using the Multicontainer Docker environment type: http://docs.aws.amazon.com/elasticbeanstalk/latest/dg/create_deploy_docker_ecs.html.

Here's a proof-of-concept Dockerrun.aws.json which I have not yet used in production:

{  "AWSEBDockerrunVersion": 2,  "volumes": [    {      "name": "mongo-app",      "host": {        "sourcePath": "/var/app/current/mongo-app"      }    }  ],  "containerDefinitions": [    {      "name": "mongo-app",      "image": "mongo",      "essential": true,      "memory": 6000,      "command": ["mongod","--storageEngine=wiredTiger","--logpath=/var/log/mongodb/mongo.log"],    "portMappings": [        {          "hostPort": 27017,          "containerPort": 27017        }      ],      "mountPoints": [        {          "sourceVolume": "mongo-app",          "containerPath": "/data/db"        },        {          "sourceVolume": "awseb-logs-mongo-app",          "containerPath": "/var/log/mongodb"        }      ]    }  ]}

This approach requires that the environment type is set to Multicontainer Docker and that a security group is attached to Elastic Beanstalk environment that allows accessing port 27017 from database clients.

Dockerrun.aws.json has a whole section for ports. You could use that instead of the lower layer ebextensions config file.

{  "AWSEBDockerrunVersion": "1",  "Authentication": {    "Bucket": "my-bucket",    "Key": "mydockercfg"  },  "Image": {    "Name": "janedoe/image",    "Update": "true"  },  "Ports": [    {      "ContainerPort": "1234"    }  ],  "Volumes": [    {      "HostDirectory": "/var/app/mydb",      "ContainerDirectory": "/etc/mysql"    }  ],  "Logging": "/var/log/nginx"}