ovn-db: set RELAY_ID per iterated relay container

Ensure each relay pre-creates its own log file, fixing fluentd
permission denied errors on ovn-sb-relay-<id>.log.

Closes-Bug: #2141909

Change-Id: Icd7bbda54c0112d1aafe636df0e4219ab06d914b
Signed-off-by: Bartosz Bezak <bartosz@stackhpc.com>
(cherry picked from commit 142584d)

Author: bbezak

ansible/roles/ovn-db/defaults/main.yml

@@ -33,7 +33,7 @@ ovn_db_services:
     group: ovn-sb-db-relay
     enabled: "{{ enable_ovn_sb_db_relay | bool }}"
     environment:
-      RELAY_ID: "{{ ovn_sb_db_relay_group_id | default('1') }}"
+      RELAY_ID: "{{ item | default(ovn_sb_db_relay_group_id | default('1')) | string }}"
     image: "{{ ovn_sb_db_relay_image_full }}"
     iterate: true
     iterate_var: "{{ ovn_sb_db_relay_count | int }}"