Add etcd TLS support

roles/etcd/templates/deb-etcd-docker.initd.j2

@@ -19,8 +19,9 @@ DAEMON={{ docker_bin_dir | default("/usr/bin") }}/docker
 DAEMON_EXEC=`basename $DAEMON`
 DAEMON_ARGS="run --restart=always --env-file=/etc/etcd.env \
 --net=host \
--v /usr/share/ca-certificates/:/etc/ssl/certs:ro \
+-v /etc/ssl/certs:/etc/ssl/certs:ro \
 -v /var/lib/etcd:/var/lib/etcd:rw \
+-v {{ etcd_cert_dir }}:{{ etcd_cert_dir }}:ro \
 --name={{ etcd_member_name | default("etcd") }} \
 {{ etcd_image_repo }}:{{ etcd_image_tag }} \
 {% if etcd_after_v3 %}