From 9b55b9a0feac9ec778db74f250d4bc2bb5831e08 Mon Sep 17 00:00:00 2001
From: elijah <elijah@riseup.net>
Date: Sat, 21 Jun 2014 02:52:43 -0700
Subject: haproxy: support read only couchdb mirrors

---
 puppet/modules/site_haproxy/manifests/init.pp      | 42 +++++++++++-----------
 puppet/modules/site_haproxy/templates/couch.erb    | 32 +++++++++++++++++
 .../modules/site_haproxy/templates/haproxy.cfg.erb | 11 ++++++
 .../site_haproxy/templates/haproxy_couchdb.cfg.erb | 23 ------------
 4 files changed, 64 insertions(+), 44 deletions(-)
 create mode 100644 puppet/modules/site_haproxy/templates/couch.erb
 create mode 100644 puppet/modules/site_haproxy/templates/haproxy.cfg.erb
 delete mode 100644 puppet/modules/site_haproxy/templates/haproxy_couchdb.cfg.erb

(limited to 'puppet/modules/site_haproxy')

diff --git a/puppet/modules/site_haproxy/manifests/init.pp b/puppet/modules/site_haproxy/manifests/init.pp
index 6bcf3f5c..b28ce80e 100644
--- a/puppet/modules/site_haproxy/manifests/init.pp
+++ b/puppet/modules/site_haproxy/manifests/init.pp
@@ -2,25 +2,25 @@ class site_haproxy {
     $haproxy     = hiera('haproxy')
 
     class { 'haproxy':
-    enable           => true,
-    manage_service   => true,
-    global_options   => {
-      'log'     => '127.0.0.1 local0',
-      'maxconn' => '4096',
-      'stats'   => 'socket /var/run/haproxy.sock user haproxy group haproxy',
-      'chroot'  => '/usr/share/haproxy',
-      'user'    => 'haproxy',
-      'group'   => 'haproxy',
-      'daemon'  => ''
-    },
-    defaults_options => {
-      'log'             => 'global',
-      'retries'         => '3',
-      'option'          => 'redispatch',
-      'timeout connect' => '4000',
-      'timeout client'  => '20000',
-      'timeout server'  => '20000'
-    }
+      enable           => true,
+      manage_service   => true,
+      global_options   => {
+        'log'     => '127.0.0.1 local0',
+        'maxconn' => '4096',
+        'stats'   => 'socket /var/run/haproxy.sock user haproxy group haproxy',
+        'chroot'  => '/usr/share/haproxy',
+        'user'    => 'haproxy',
+        'group'   => 'haproxy',
+        'daemon'  => ''
+      },
+      defaults_options => {
+        'log'             => 'global',
+        'retries'         => '3',
+        'option'          => 'redispatch',
+        'timeout connect' => '4000',
+        'timeout client'  => '20000',
+        'timeout server'  => '20000'
+      }
   }
 
   # monitor haproxy
@@ -34,8 +34,8 @@ class site_haproxy {
   concat::fragment { 'leap_haproxy_webapp_couchdb':
     target  => '/etc/haproxy/haproxy.cfg',
     order   => '20',
-    content => template('site_haproxy/haproxy_couchdb.cfg.erb'),
+    content => template('site_haproxy/haproxy.cfg.erb'),
   }
-  
+
   include site_check_mk::agent::haproxy
 }
diff --git a/puppet/modules/site_haproxy/templates/couch.erb b/puppet/modules/site_haproxy/templates/couch.erb
new file mode 100644
index 00000000..baa31486
--- /dev/null
+++ b/puppet/modules/site_haproxy/templates/couch.erb
@@ -0,0 +1,32 @@
+frontend couch
+  bind localhost:<%= @listen_port %>
+  mode     http
+  option   httplog
+  option   dontlognull
+  option   http-server-close    # use client keep-alive, but close server connection.
+  use_backend couch_write if METH_POST
+  default_backend couch_read
+
+backend couch_write
+  mode http
+  balance  roundrobin
+  option   httpchk GET /        # health check using simple get to root
+  option   allbackups           # balance among all backups, not just one.
+  default-server inter 3000 fastinter 1000 downinter 1000 rise 2 fall 1
+<%- @servers.sort.each do |name,server| -%>
+<%-   next unless server['writable'] -%>
+    # <%=name%>
+    server couchdb_<%=server['port']%> <%=server['host']%>:<%=server['port']%> <%='backup' if server['backup']%> weight <%=server['weight']%> check
+<%- end -%>
+
+backend couch_read
+  mode http
+  balance  roundrobin
+  option   httpchk GET /        # health check using simple get to root
+  option   allbackups           # balance among all backups, not just one.
+  default-server inter 3000 fastinter 1000 downinter 1000 rise 2 fall 1
+<%- @servers.sort.each do |name,server| -%>
+    # <%=name%>
+    server couchdb_<%=server['port']%> <%=server['host']%>:<%=server['port']%> <%='backup' if server['backup']%> weight <%=server['weight']%> check
+<%- end -%>
+
diff --git a/puppet/modules/site_haproxy/templates/haproxy.cfg.erb b/puppet/modules/site_haproxy/templates/haproxy.cfg.erb
new file mode 100644
index 00000000..8311b1a5
--- /dev/null
+++ b/puppet/modules/site_haproxy/templates/haproxy.cfg.erb
@@ -0,0 +1,11 @@
+<%- @haproxy.each do |frontend, options| -%>
+<%-   if options['servers'] -%>
+
+##
+## <%= frontend %>
+##
+
+<%=     scope.function_templatewlv(["site_haproxy/#{frontend}.erb", options]) %>
+<%-   end -%>
+<%- end -%>
+
diff --git a/puppet/modules/site_haproxy/templates/haproxy_couchdb.cfg.erb b/puppet/modules/site_haproxy/templates/haproxy_couchdb.cfg.erb
deleted file mode 100644
index 1fa01b96..00000000
--- a/puppet/modules/site_haproxy/templates/haproxy_couchdb.cfg.erb
+++ /dev/null
@@ -1,23 +0,0 @@
-
-listen bigcouch-in
-  mode     http
-  balance  roundrobin
-  option   httplog
-  option   dontlognull
-  option   httpchk GET /        # health check using simple get to root
-  option   http-server-close    # use client keep-alive, but close server connection.
-  option   allbackups           # balance among all backups, not just one.
-
-  bind localhost:4096
-
-  default-server inter 3000 fastinter 1000 downinter 1000 rise 2 fall 1
-
-<%- if @haproxy['servers'] -%>
-<%-   @haproxy['servers'].sort.each do |name,server| -%>
-<%-     backup = server['backup'] ? 'backup' : '' -%>
-  # <%=name%>
-  server couchdb_<%=server['port']%> <%=server['host']%>:<%=server['port']%> <%=backup%> weight <%=server['weight']%> check
-
-<%-   end -%>
-<%- end -%>
-
-- 
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