Merge "Refactor cellv2 host discovery logic to avoid races" into stable/pike

1 files changed, 15 insertions, 0 deletions

diff --git a/overcloud.j2.yaml b/overcloud.j2.yaml
index 3506fe8e..9ea195da 100644
--- a/overcloud.j2.yaml
+++ b/overcloud.j2.yaml
@@ -642,6 +642,21 @@ resources:
 {% for role in roles %}
           - {get_attr: [{{role.name}}ServiceNames, value]}
 {% endfor %}
+      cellv2_discovery_hosts:
+        # Collects compute hostnames for all roles with a service that requires cellv2 host discovery
+        list_join:
+          - ','
+          - yaql:
+              expression: coalesce($.data.e.zip($.data.l).where($[0]).select($[1]).flatten(),  [])
+              data:
+                e: # list of true/fails for whether cellsv2 host discovery is required for the roles
+{%- for role in roles %}
+                  - {get_attr: [{{role.name}}ServiceChainRoleData, value, cellv2_discovery]}
+{%- endfor %}
+                l: # list of list of compute hostnames for the roles
+{%- for role in roles %}
+                  - {get_attr: [{{role.name}}, hostname_map, canonical]}
+{%- endfor %}
       controller_ips: {get_attr: [{{primary_role_name}}, ip_address]}
       controller_names: {get_attr: [{{primary_role_name}}, hostname]}
       service_ips: