mount docker sock in container

sample.tf

resource "aws_batch_job_definition" "kitten-transfer" {
  name                  = "kitten-transfer"
  type                  = "container"
  platform_capabilities = ["EC2"]
  parameters            = var.batch_parameters

  container_properties = <<CONTAINER_PROPERTIES
    {
        "command": ["Ref::command", "Ref::parameters"],
        "image": "406641514508.dkr.ecr.us-east-1.amazonaws.com/kitten-transfer:latest",
        "memory": 1024,
        "vcpus": 1,
        "volumes": [
            {
                "host": {
                    "sourcePath": "/var/run/docker.sock"
                },
                "name": "docker"
            }
        ],
        "mountPoints": [
            {
                "sourceVolume": "docker",
                "containerPath": "/var/run/docker.sock"
            }
        ]
    }
    CONTAINER_PROPERTIES
}