Parameterize RabbitMQ FD limit

Together with [1] this change permits to parameterize the file
descriptor limit for RabbitMQ for both the Systemd startup script
and the Pacemaker resource agent.

1. https://github.com/puppetlabs/puppetlabs-rabbitmq/commit/20325325b977c508b151ef8036107dcfefdf990b

Closes-Bug: 1474586
Change-Id: I62d31e483641ccb5cf489df81146ecb31d0c423f

1 files changed, 6 insertions, 0 deletions

diff --git a/overcloud-without-mergepy.yaml b/overcloud-without-mergepy.yaml
index 654c2427..9af7ef93 100644
--- a/overcloud-without-mergepy.yaml
+++ b/overcloud-without-mergepy.yaml
@@ -253,6 +253,11 @@ parameters:
     default: 5672
     description: Set rabbit subscriber port, change this if using SSL
     type: number
+  # We need to set this as string because 'unlimited' is a valid setting
+  RabbitFDLimit:
+    default: 16384
+    description: Configures RabbitMQ FD limit
+    type: string
   SnmpdReadonlyUserName:
     default: ro_snmp_user
     description: The user name for SNMPd with readonly rights running on all Overcloud nodes
@@ -833,6 +838,7 @@ resources:
           RabbitCookie: {get_attr: [RabbitCookie, value]}
           RabbitClientUseSSL: {get_param: RabbitClientUseSSL}
           RabbitClientPort: {get_param: RabbitClientPort}
+          RabbitFDLimit: {get_param: RabbitFDLimit}
           SnmpdReadonlyUserName: {get_param: SnmpdReadonlyUserName}
           SnmpdReadonlyUserPassword: {get_param: SnmpdReadonlyUserPassword}
           RedisVirtualIP: {get_attr: [RedisVirtualIP, ip_address]}