Make connection_max_retries configurable

Change-Id: I856577580c2cd594b7bfef81170435e00d04b59c
Related-PROD: PROD-31782
(cherry picked from commit 0c9c22bbdedeb6f0a4c36010641392b71b6ba3a7)
diff --git a/metadata/service/manager/single.yml b/metadata/service/manager/single.yml
index 4bde8bb..c976a24 100644
--- a/metadata/service/manager/single.yml
+++ b/metadata/service/manager/single.yml
@@ -8,6 +8,8 @@
     octavia_loadbalancer_topology: 'SINGLE'
     octavia_hm_bind_port: 5555
     octavia_amphora_availability_zone: 'nova'
+    octavia_worker_connection_max_retries: 500
+
   octavia:
     manager:
       enabled: true
@@ -49,6 +51,7 @@
         client_cert_key: '/etc/octavia/certs/client.key'
         client_cert_all: '/etc/octavia/certs/client_all.pem'
         server_ca: '/etc/octavia/certs/ca_01.pem'
+        connection_max_retries: ${_param:octavia_worker_connection_max_retries}
       health_manager:
         bind_ip: ${_param:octavia_hm_bind_ip}
         bind_port: ${_param:octavia_hm_bind_port}