aws_ecs_task_definition: host_path for volumes is optional

[tj]

Currently:

host_path - (Required) The path on the host container instance that is presented to the container.

Docs mentioning its behaviour when omitted:

http://docs.aws.amazon.com/AmazonECS/latest/developerguide/task_definition_parameters.html

Type: string

Required: no

The contents of the host parameter determine whether your data volume persists on the host container instance and where it is stored. If the host parameter is empty, then the Docker daemon assigns a host path for your data volume, but the data is not guaranteed to persist after the containers associated with it stop running.

By default, Docker-managed volumes are created in /var/lib/docker/vfs/dir/. You can change this default location by writing OPTIONS="-g=/my/path/for/docker/volumes" to /etc/sysconfig/docker on the container instance.

sourcePath
Type: string

Required: no

The path on the host container instance that is presented to the container. If this parameter is empty, then the Docker daemon assigns a host path for you.

If the host parameter contains a sourcePath file location, then the data volume persists at the specified location on the host container instance until you delete it manually. If the sourcePath value does not exist on the host container instance, the Docker daemon creates it. If the location does exist, the contents of the source path folder are exported.

Maybe a little nitpicky but the naming doesn't line up well with theirs either.

Also not a huge deal in our specific case, I can just throw /tmp at it for now

[radeksimko]

Hi,
isn't this a duplicate of #2370 ?

[tj]

ah yep forgot about that haha thanks

[ghost]

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