From 04f714a0d02974825f1fa256dfb7cc6dde004b53 Mon Sep 17 00:00:00 2001
From: Peter Palfrader <peter@palfrader.org>
Date: Fri, 8 Dec 2017 15:28:16 +0100
Subject: [PATCH] Enable TCP BBR on a bunch of hosts.  Not all for now, but
 maybe we should.  (re: RT#6990)

---
 manifests/site.pp                 |  1 +
 modules/tcp_bbr/manifests/init.pp | 46 +++++++++++++++++++++++++++++++
 2 files changed, 47 insertions(+)
 create mode 100644 modules/tcp_bbr/manifests/init.pp

diff --git a/manifests/site.pp b/manifests/site.pp
index 12e8e51e3..fc283db24 100644
--- a/manifests/site.pp
+++ b/manifests/site.pp
@@ -44,6 +44,7 @@ node default {
 	include postgres
 	include haveged
 	include huge_mem
+	include tcp_bbr
 
 	if $::lsbdistcodename == squeeze {
 		include roles::udldap::client
diff --git a/modules/tcp_bbr/manifests/init.pp b/modules/tcp_bbr/manifests/init.pp
new file mode 100644
index 000000000..ac7470f78
--- /dev/null
+++ b/modules/tcp_bbr/manifests/init.pp
@@ -0,0 +1,46 @@
+class tcp_bbr {
+	# this is included by all hosts,
+	# so filtering needs to happen here.
+
+	if
+	   has_role('api.ftp-master') or
+	   has_role('bacula_storage') or
+	   has_role('bugs_master') or
+	   has_role('bugs_mirror') or
+	   has_role('debian_mirror') or
+	   has_role('debug_mirror') or
+	   has_role('dgit_git') or
+	   has_role('ftp.d.o') or
+	   has_role('ftp.upload.d.o') or
+	   has_role('ftp_master') or
+	   has_role('git_master') or
+	   has_role('historical_master') or
+	   has_role('historical_mirror') or
+	   has_role('ports_master') or
+	   has_role('ports_mirror') or
+	   has_role('postgres_backup_server') or
+	   has_role('postgresql_server') or
+	   has_role('security_master') or
+	   has_role('security_mirror') or
+	   has_role('security_upload') or
+	   has_role('ssh.upload.d.o') or
+	   has_role('static_master') or
+	   has_role('static_mirror') or
+	   has_role('static_source') or
+	   has_role('syncproxy') or
+	   has_role('www_master') or
+	   false {
+
+		site::linux_module { 'tcp_bbr': }
+		site::linux_module { 'sch_fq': }
+
+		site::sysctl { 'puppet-net_core_default_qdisc':
+			key   => 'net.core.default_qdisc',
+			value => 'fq',
+		}
+		site::sysctl { 'puppet-net_ipv4_tcp_congestion_control':
+			key   => 'net.ipv4.tcp_congestion_control',
+			value => 'bbr',
+		}
+	}
+}
-- 
2.20.1