Improve failed mysql node removal time in HA deploys.

In HA deployments, we now check mysql nodes every 1s and removed them
immediately if they are failed. Previously we would check every 2s and
allow them to fail 5 checks before being removed, producing errors from
other OpenStack services for 10s, which causes confusion and delay for
operators.
Additionally, these check options are now also a class parameter so can
be overridden by operators.

Closes-Bug: #1639189

Change-Id: I0b915f790ae5a4b018a212d3aa83cca507be05e9

1 files changed, 20 insertions, 3 deletions

diff --git a/manifests/haproxy.pp b/manifests/haproxy.pp
index 7c5ff39..99c3913 100644
--- a/manifests/haproxy.pp
+++ b/manifests/haproxy.pp
@@ -230,6 +230,14 @@
 #  (optional) Enable check via clustercheck for mysql
 #  Defaults to false
 #
+# [*mysql_member_options*]
+#  The options to use for the mysql HAProxy balancer members.
+#  If this parameter is undefined, the actual value configured will depend
+#  on the value of $mysql_clustercheck. If cluster checking is enabled,
+#  the mysql member options will be: "['backup', 'port 9200', 'on-marked-down shutdown-sessions', 'check', 'inter 1s']"
+#  and if mysql cluster checking is disabled, the member options will be: "union($haproxy_member_options, ['backup'])"
+#  Defaults to undef
+#
 # [*rabbitmq*]
 #  (optional) Enable or not RabbitMQ binding
 #  Defaults to false
@@ -486,6 +494,7 @@ class tripleo::haproxy (
   $ironic_inspector            = hiera('ironic_inspector_enabled', false),
   $mysql                       = hiera('mysql_enabled', false),
   $mysql_clustercheck          = false,
+  $mysql_member_options        = undef,
   $rabbitmq                    = false,
   $docker_registry             = hiera('enable_docker_registry', false),
   $redis                       = hiera('redis_enabled', false),
@@ -1094,13 +1103,21 @@ class tripleo::haproxy (
       'stick-table'    => 'type ip size 1000',
       'stick'          => 'on dst',
     }
-    $mysql_member_options = union($haproxy_member_options, ['backup', 'port 9200', 'on-marked-down shutdown-sessions'])
+    if $mysql_member_options {
+        $mysql_member_options_real = $mysql_member_options
+    } else {
+        $mysql_member_options_real = ['backup', 'port 9200', 'on-marked-down shutdown-sessions', 'check', 'inter 1s']
+    }
   } else {
     $mysql_listen_options = {
       'timeout client' => '90m',
       'timeout server' => '90m',
     }
-    $mysql_member_options = union($haproxy_member_options, ['backup'])
+    if $mysql_member_options {
+        $mysql_member_options_real = $mysql_member_options
+    } else {
+        $mysql_member_options_real = union($haproxy_member_options, ['backup'])
+    }
   }
 
   if $mysql {
@@ -1114,7 +1131,7 @@ class tripleo::haproxy (
       ports             => '3306',
       ipaddresses       => hiera('mysql_node_ips', $controller_hosts_real),
       server_names      => hiera('mysql_node_names', $controller_hosts_names_real),
-      options           => $mysql_member_options,
+      options           => $mysql_member_options_real,
     }
   }