create table batch_image_commands (
  image text not null,
  tag text not null default 'latest',
  command ,
  memory integer not null,
  v_cpus integer not null,
  job_role_arn text,
  environment_variables ,
  job_queue text
);

comment on column batch_image_commands.image is '
  Name of docker image including registry URL if needed
';
comment on column batch_image_commands.tag is '
  Tag on docker image
';
comment on column batch_image_commands.command is '
  Command to pass to Docker container
';
comment on column batch_image_commands.job_role_arn is '
  ARN of an IAM role, see http://docs.aws.amazon.com/AmazonECS/latest/developerguide/task-iam-roles.html
';
comment on column batch_image_commands.environment_variables is '
  environment variables to be passed to container
';
comment on column batch_image_commands.job_queue is '
  Override default job queue, eg: for priority queue or GPU instances queue
';