From: Tom Hughes <tom@compton.nu>
Date: Mon, 11 Mar 2024 17:15:10 +0000 (+0000)
Subject: Enable mod_evasive for all apache instances except render servers
X-Git-Url: https://git.openstreetmap.org/chef.git/commitdiff_plain/2c9527844e884db26c83395ac4068d76507c7999

Enable mod_evasive for all apache instances except render servers
---

diff --git a/cookbooks/apache/attributes/default.rb b/cookbooks/apache/attributes/default.rb
index 1aefe9270..31003d628 100644
--- a/cookbooks/apache/attributes/default.rb
+++ b/cookbooks/apache/attributes/default.rb
@@ -29,3 +29,5 @@ default[:apache][:event][:max_connections_per_child] = 0
 default[:apache][:listen_address] = "*"
 
 default[:apache][:buffered_logs] = true
+
+default[:apache][:evasive] = true
diff --git a/cookbooks/apache/recipes/default.rb b/cookbooks/apache/recipes/default.rb
index 4d91da140..aee5dfcc8 100644
--- a/cookbooks/apache/recipes/default.rb
+++ b/cookbooks/apache/recipes/default.rb
@@ -78,6 +78,11 @@ apache_module "status" do
   variables :hosts => admins["hosts"]
 end
 
+apache_module "evasive" do
+  conf "evasive.conf.erb"
+  only_if { node[:apache][:evasive] }
+end
+
 apache_module "brotli" do
   conf "brotli.conf.erb"
 end
diff --git a/cookbooks/apache/templates/default/evasive.conf.erb b/cookbooks/apache/templates/default/evasive.conf.erb
new file mode 100644
index 000000000..af5266685
--- /dev/null
+++ b/cookbooks/apache/templates/default/evasive.conf.erb
@@ -0,0 +1,10 @@
+# DO NOT EDIT - This file is being maintained by Chef
+
+<IfModule mod_evasive.c>
+    DOSHashTableSize    65536
+    DOSPageCount        2
+    DOSSiteCount        50
+    DOSPageInterval     1
+    DOSSiteInterval     1
+    DOSBlockingPeriod   60
+</IfModule>
diff --git a/roles/tile.rb b/roles/tile.rb
index 2a4af1a95..4c47704dc 100644
--- a/roles/tile.rb
+++ b/roles/tile.rb
@@ -13,6 +13,7 @@ default_attributes(
   :apache => {
     :mpm => "event",
     :timeout => 60,
+    :evasive => false,
     :event => {
       :threads_per_child => 20,
       :min_spare_threads => 300,