NixOS/nixpkgs — pull request #5515 by oconnorr (2014-12-30 22:19:42+00:00)
Title: GCE updates to ntp server and to fetch all ssh keys

I tested this GCE image on my account and it seems to work and it should be backwards compatible in the sense that if the metadata server only provides ecdsa host private and public keys then the ecdsa private key is downloaded and used. The public key on the metadata server will be ignored as this patch will regenerated the public key directly from the private key instead.