Fix the python requirements. Add the ability to map in etcd client certs and ca.

buildman/templates/cloudconfig.yaml

@@ -13,12 +13,6 @@ coreos:
     reboot-strategy: off
     group: {{ coreos_channel }}
 
-  etcd:
-    discovery: https://discovery.etcd.io/{{ etcd_token }}
-    # multi-region and multi-cloud deployments need to use $public_ipv4
-    addr: $private_ipv4:4001
-    peer-addr: $private_ipv4:7001
-
   units:
     - name: quay-builder.service
       command: start