Docs probably use dev image not release image

[erikbgithub]

For instance this page doesn't contain the etcd binary in their code examples. But if you install the release image instead of however you start the devel image you won't have an ENTRYPOINT, so you need to explicitely state the binary you want to use.

[gyuho]

https://coreos.com/etcd/docs/latest/v2/docker_guide.html assumes that you are running v2.

Since v3, we use CMD https://github.com/coreos/etcd/blob/master/NEWS#L154.

We prefer to use release image for all docs. I think it's clear as long as we specify the image tag as here https://github.com/coreos/etcd/blob/master/Documentation/v2/docker_guide.md#etcd0.

Please let me know if you have any other questions.

[erikbgithub]

I see, thanks for the explanation!