diff --git a/ansible/roles/etcd/defaults/main.yml b/ansible/roles/etcd/defaults/main.yml
index 914a96deb0..dec8eb24cf 100644
--- a/ansible/roles/etcd/defaults/main.yml
+++ b/ansible/roles/etcd/defaults/main.yml
@@ -14,16 +14,12 @@ etcd_services:
       ETCD_INITIAL_ADVERTISE_PEER_URLS: "{{ internal_protocol }}://{{ api_interface_address }}:{{ etcd_peer_port }}"
       ETCD_LISTEN_PEER_URLS: "{{ internal_protocol }}://{{ api_interface_address }}:{{ etcd_peer_port }}"
       ETCD_INITIAL_CLUSTER_TOKEN: "{{ etcd_cluster_token }}"
-      ETCD_INITIAL_CLUSTER: "{% for host in groups['etcd'] %}{{ hostvars[host]['ansible_hostname'] }}={{ internal_protocol }}://{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ etcd_peer_port }}{% if not loop.last %},{% endif %}{% endfor %}"
+      ETCD_INITIAL_CLUSTER: "{% for host in etcd_hosts %}{{ hostvars[host]['ansible_hostname'] }}={{ internal_protocol }}://{{ hostvars[host]['ansible_' + hostvars[host]['api_interface']]['ipv4']['address'] }}:{{ etcd_peer_port }}{% if not loop.last %},{% endif %}{% endfor %}"
       ETCD_INITIAL_CLUSTER_STATE: "new"
       ETCD_OUT_FILE: "/var/log/kolla/etcd/etcd.log"
       KOLLA_CONFIG_STRATEGY: "{{ config_strategy }}"
     image: "{{ etcd_image_full }}"
-    host_in_groups: >-
-      {{
-      inventory_hostname in groups['control']
-      or (enable_kuryr | bool and inventory_hostname in groups['compute'])
-      }}
+    host_in_groups: "{{ inventory_hostname in etcd_hosts }}"
     volumes:
       - "{{ node_config_directory }}/etcd/:{{ container_config_directory }}/:ro"
       - "/etc/localtime:/etc/localtime:ro"
@@ -39,3 +35,6 @@ etcd_image: "{{ docker_registry ~ '/' if docker_registry else '' }}{{ docker_nam
 etcd_tag: "{{ openstack_release }}"
 etcd_image_full: "{{ etcd_image }}:{{ etcd_tag }}"
 etcd_dimensions: "{{ default_container_dimensions }}"
+
+# List of hosts running etcd.
+etcd_hosts: "{{ groups['control'] + (groups['compute'] if enable_kuryr | bool else []) }}"