Restrict fail2ban to evasive blocks instead of all 403 errors

[chef.git] / cookbooks / exim / recipes / default.rb

diff --git a/cookbooks/exim/recipes/default.rb b/cookbooks/exim/recipes/default.rb
index b250045d2d8fa9ee9a901baf912f08779da76aae..ced5a91965c8721b00e281c4d8efb5b5f1322081 100644 (file)
--- a/cookbooks/exim/recipes/default.rb
+++ b/cookbooks/exim/recipes/default.rb
@@ -17,15 +17,27 @@
 # limitations under the License.
 #
 
+include_recipe "munin"
 include_recipe "networking"
+include_recipe "prometheus"
 
 package %w[
   exim4
   openssl
   ssl-cert
+  mailutils
 ]
 
-package "exim4-daemon-heavy" if File.exist?("/var/run/clamav/clamd.ctl")
+package "exim4-daemon-heavy" do
+  only_if { ::File.exist?("/var/run/clamav/clamd.ctl") }
+end
+
+group "Debian-exim" do
+  action :modify
+  members "clamav"
+  append true
+  only_if { ::File.exist?("/var/run/clamav/clamd.ctl") }
+end
 
 group "ssl-cert" do
   action :modify
@@ -50,7 +62,7 @@ else
     key_file "/etc/ssl/private/exim.key"
     owner "root"
     group "ssl-cert"
-    mode 0o640
+    mode "640"
     org "OpenStreetMap"
     email "postmaster@openstreetmap.org"
     common_name node[:fqdn]
@@ -73,17 +85,17 @@ end
 relay_from_hosts = node[:exim][:relay_from_hosts]
 
 if node[:exim][:smarthost_name]
-  search(:node, "exim_smarthost_via:#{node[:exim][:smarthost_name]}\\:*").each do |host|
+  search(:node, "exim_smarthost_via:*?").each do |host|
     relay_from_hosts |= host.ipaddresses(:role => :external)
   end
 
-  domains = node[:exim][:local_domains].reject { |d| ["localhost", "@", "noreply.openstreetmap.org"].any?(d) }
+  domains = node[:exim][:certificate_names].select { |c| c =~ /^a\.mx\./ }.collect { |c| c.sub(/^a\.mx./, "") }
   primary_domain = domains.first
 
   directory "/srv/mta-sts.#{primary_domain}" do
     owner "root"
     group "root"
-    mode 0o755
+    mode "755"
   end
 
   domains.each do |domain|
@@ -91,7 +103,7 @@ if node[:exim][:smarthost_name]
       source "mta-sts.erb"
       owner "root"
       group "root"
-      mode 0o644
+      mode "644"
       variables :domain => domain
     end
   end
@@ -103,6 +115,7 @@ if node[:exim][:smarthost_name]
 
   apache_site "mta-sts.#{primary_domain}" do
     template "apache-mta-sts.erb"
+    directory "/srv/mta-sts.#{primary_domain}"
     variables :domains => domains
   end
 end
@@ -110,14 +123,61 @@ end
 file "/etc/exim4/blocked-senders" do
   owner "root"
   group "Debian-exim"
-  mode 0o644
+  mode "644"
+end
+
+file "/etc/exim4/blocked-sender-domains" do
+  owner "root"
+  group "Debian-exim"
+  mode "644"
+end
+
+if node[:exim][:dkim_selectors]
+  keys = data_bag_item("exim", "dkim")
+
+  template "/etc/exim4/dkim-domains" do
+    owner "root"
+    source "dkim-domains.erb"
+    group "Debian-exim"
+    mode "644"
+  end
+
+  template "/etc/exim4/dkim-selectors" do
+    owner "root"
+    source "dkim-selectors.erb"
+    group "Debian-exim"
+    mode "644"
+  end
+
+  directory "/etc/exim4/dkim-keys" do
+    owner "root"
+    group "Debian-exim"
+    mode "755"
+  end
+
+  node[:exim][:dkim_selectors].each do |domain, _selector|
+    file "/etc/exim4/dkim-keys/#{domain}" do
+      content keys[domain].join("\n")
+      owner "root"
+      group "Debian-exim"
+      mode "640"
+    end
+  end
+end
+
+template "/etc/default/exim4" do
+  source "default.erb"
+  owner "root"
+  group "root"
+  mode "044"
+  notifies :restart, "service[exim4]"
 end
 
 template "/etc/exim4/exim4.conf" do
   source "exim4.conf.erb"
   owner "root"
   group "Debian-exim"
-  mode 0o644
+  mode "644"
   variables :relay_to_domains => relay_to_domains.sort,
             :relay_from_hosts => relay_from_hosts.sort
   notifies :restart, "service[exim4]"
@@ -144,53 +204,67 @@ template "/etc/aliases" do
   source "aliases.erb"
   owner "root"
   group "root"
-  mode 0o644
+  mode "644"
 end
 
 remote_directory "/etc/exim4/noreply" do
   source "noreply"
   owner "root"
   group "Debian-exim"
-  mode 0o755
+  mode "755"
   files_owner "root"
   files_group "Debian-exim"
-  files_mode 0o755
+  files_mode "755"
   purge true
 end
 
+template "/etc/mail.rc" do
+  source "mail.rc.erb"
+  owner "root"
+  group "root"
+  mode "644"
+end
+
 munin_plugin "exim_mailqueue"
 munin_plugin "exim_mailstats"
 
+prometheus_exporter "exim" do
+  port 9636
+  user "Debian-exim"
+  protect_proc "default"
+end
+
 if node[:exim][:smarthost_name]
-  node[:exim][:daemon_smtp_ports].each do |port|
-    firewall_rule "accept-inbound-smtp-#{port}" do
-      action :accept
-      source "net"
-      dest "fw"
-      proto "tcp:syn"
-      dest_ports port
-      source_ports "1024:"
-    end
+  firewall_rule "accept-inbound-smtp" do
+    action :accept
+    context :incoming
+    protocol :tcp
+    dest_ports node[:exim][:daemon_smtp_ports]
+    source_ports "1024-65535"
   end
 else
-  node[:exim][:daemon_smtp_ports].each do |port|
-    firewall_rule "accept-inbound-smtp-#{port}" do
-      action :accept
-      source "bm:mail.openstreetmap.org"
-      dest "fw"
-      proto "tcp:syn"
-      dest_ports port
-      source_ports "1024:"
-    end
+  smarthosts = []
+
+  search(:node, "exim_smarthost_name:*?").each do |host|
+    smarthosts |= host.ipaddresses(:role => :external)
+  end
+
+  firewall_rule "accept-inbound-smtp" do
+    action :accept
+    context :incoming
+    protocol :tcp
+    source smarthosts
+    dest_ports node[:exim][:daemon_smtp_ports]
+    source_ports "1024-65535"
+    not_if { smarthosts.empty? }
   end
 end
 
 if node[:exim][:smarthost_via]
   firewall_rule "deny-outbound-smtp" do
     action :reject
-    source "fw"
-    dest "net"
-    proto "tcp:syn"
+    context :outgoing
+    protocol :tcp
     dest_ports "smtp"
   end
 end