Etcd discovery key is in the source.

[rbucker]

You might want to fail fast instead of sharing your key

[damm]

The key is https://github.com/kelseyhightower/coreos-ipxe-server/blob/8b671421047fa80d3911e530f23ec7995f27f3c6/docker/setup_docker.sh#L34

or are you referring to something new?

curl https://discovery.etcd.io/a1efed8239a47c98c12ce07e2b67f0ed

{"action":"get","node":{"key":"/_etcd/registry/a1efed8239a47c98c12ce07e2b67f0ed","dir":true,"modifiedIndex":74119630,"createdIndex":74119630}}

[rbucker]

I'm referring to: https://github.com/kelseyhightower/coreos-ipxe-server/blob/master/docker/setup_docker.sh

The setup script has a snippet from the coreos-vagrant file, however, in this case the actual number is present instead of the mask.