kubespray/roles/etcd/templates/etcd-proxy.j2

ETCD_DATA_DIR=/var/lib/etcd-proxy
ETCD_PROXY=on
ETCD_LISTEN_CLIENT_URLS={{ etcd_access_endpoint }}
ETCD_NAME={{ etcd_proxy_member_name | default("etcd-proxy") }}
ETCD_INITIAL_CLUSTER={{ etcd_peer_addresses }}