ship a modified runit config for bigcouch that raises the open file

descriptor limits to account for bigcouch sync spikes (#4935)

Change-Id: I242fba31f961b6139ec641e1708b170f5c0d009b

puppet/modules/site_couchdb/files/runit_config

+#!/bin/bash
+exec 2>&1
+export HOME=/home/bigcouch
+ulimit -H -n 32768
+ulimit -S -n 32768
+exec chpst -u bigcouch /opt/bigcouch/bin/bigcouch

puppet/modules/site_couchdb/manifests/bigcouch.pp

@@ -31,4 +31,14 @@ class site_couchdb::bigcouch {
   file { '/var/log/bigcouch':
     ensure => directory
   }
+
+  file { '/etc/sv/bigcouch/run':
+    ensure  => present,
+    source  => 'puppet:///modules/site_couchdb/runit_config',
+    owner   => root,
+    group   => root,
+    mode    => '0755',
+    require => Package['couchdb'],
+    notify  => Service['couchdb']
+  }
 }