Reduce cache memory on jakelong

[chef.git] / roles / base.rb

diff --git a/roles/base.rb b/roles/base.rb
index 15c913d3d3d9354643ed176b9dc8a05cb9f1ddec..5ffc5dee9adf35ad3fd6129bd85e1cb759582e36 100644 (file)
--- a/roles/base.rb
+++ b/roles/base.rb
@@ -11,14 +11,14 @@ default_attributes(
     }
   },
   :apt => {
     }
   },
   :apt => {

-    :sources => [ "openstreetmap" ]
+    :sources => ["openstreetmap"]

   },
   :networking => {
     :roles => {
       :internal => { :metric => 200, :zone => "loc" },
       :external => { :metric => 100 }
     },
   },
   :networking => {
     :roles => {
       :internal => { :metric => 200, :zone => "loc" },
       :external => { :metric => 100 }
     },

-    :search => [ "openstreetmap.org" ]
+    :search => ["openstreetmap.org"]

   },
   :sysctl => {
     :panic => {
   },
   :sysctl => {
     :panic => {


@@ -27,11 +27,14 @@ default_attributes(
     },
     :blackhole => {
       :comment => "Do TCP level MTU probing if we seem to have an ICMP blackhole",
     },
     :blackhole => {
       :comment => "Do TCP level MTU probing if we seem to have an ICMP blackhole",

-      :parameters => { "net.ipv4.tcp_mtu_probing" => "1" }
+      :parameters => {
+        "net.ipv4.tcp_mtu_probing" => "1",
+        "net.ipv4.tcp_base_mss" => "1024"
+      }

     },
     :network_buffers => {
       :comment => "Tune network buffers",
     },
     :network_buffers => {
       :comment => "Tune network buffers",

-      :parameters => { 
+      :parameters => {

         "net.core.rmem_max" => "16777216",
         "net.core.wmem_max" => "16777216",
         "net.ipv4.tcp_rmem" => "4096\t87380\t16777216",
         "net.core.rmem_max" => "16777216",
         "net.core.wmem_max" => "16777216",
         "net.ipv4.tcp_rmem" => "4096\t87380\t16777216",


@@ -44,14 +47,14 @@ default_attributes(
     },
     :network_conntrack_established => {
       :comment => "Only track established connections for four hours",
     },
     :network_conntrack_established => {
       :comment => "Only track established connections for four hours",

-      :parameters => { 
+      :parameters => {

         "net.netfilter.nf_conntrack_tcp_timeout_established" => "14400"
       }
     },
     :tcp_syncookies => {
         "net.netfilter.nf_conntrack_tcp_timeout_established" => "14400"
       }
     },
     :tcp_syncookies => {

-      :comment => "Turn off syncookies as they interact badly with the firewall",
+      :comment => "Turn on syncookies to protect against SYN floods",

       :parameters => {
       :parameters => {

-        "net.ipv4.tcp_syncookies" => "0"
+        "net.ipv4.tcp_syncookies" => "1"

       }
     }
   },
       }
     }
   },


@@ -60,7 +63,7 @@ default_attributes(
       :comment => "Tune the ondemand CPU frequency governor",
       :parameters => {
         "devices/system/cpu/cpufreq/ondemand/up_threshold" => "25",
       :comment => "Tune the ondemand CPU frequency governor",
       :parameters => {
         "devices/system/cpu/cpufreq/ondemand/up_threshold" => "25",

-        "devices/system/cpu/cpufreq/ondemand/sampling_down_factor" => "10"
+        "devices/system/cpu/cpufreq/ondemand/sampling_down_factor" => "100"

       }
     }
   }
       }
     }
   }


@@ -79,5 +82,6 @@ run_list(
   "recipe[openssh]",
   "recipe[sysctl]",
   "recipe[sysfs]",
   "recipe[openssh]",
   "recipe[sysctl]",
   "recipe[sysfs]",

-  "recipe[tools]"
+  "recipe[tools]",
+  "recipe[fail2ban]"

 )
 )