Remove munin

Fixed: openstreetmap/operations#501
Signed-off-by: Grant Slater <github@firefishy.com>

Author: Firefishy

cookbooks/apache/recipes/default.rb

@@ -126,10 +126,6 @@
   maxretry 3
 end
 
-munin_plugin "apache_accesses"
-munin_plugin "apache_processes"
-munin_plugin "apache_volume"
-
 template "/var/lib/prometheus/node-exporter/apache.prom" do
   source "apache.prom.erb"
   owner "root"

cookbooks/chef/recipes/server.rb

@@ -101,5 +101,3 @@
   group "root"
   mode "755"
 end
-
-munin_plugin "chef_status"

cookbooks/db/recipes/base.rb

@@ -26,11 +26,6 @@
 passwords = data_bag_item("db", "passwords")
 wal_secrets = data_bag_item("db", "wal-secrets")
 
-postgresql_munin "openstreetmap" do
-  cluster node[:db][:cluster]
-  database "openstreetmap"
-end
-
 directory "/srv/www.openstreetmap.org" do
   group "rails"
   mode "2775"

cookbooks/db/recipes/master.rb

@@ -64,7 +64,7 @@
 
 postgresql_user "munin" do
   cluster node[:db][:cluster]
-  password passwords["munin"]
+  action :drop
 end
 
 postgresql_user "replication" do

cookbooks/dev/recipes/default.rb

@@ -571,13 +571,6 @@
   apache_site "apis.dev.openstreetmap.org" do
     template "apache.apis.erb"
   end
-
-  node[:postgresql][:clusters].each_key do |name|
-    postgresql_munin name do
-      cluster name
-      database "ALL"
-    end
-  end
 end
 
 directory "/srv/ooc.openstreetmap.org" do

cookbooks/exim/recipes/default.rb

@@ -225,9 +225,6 @@
   mode "644"
 end
 
-munin_plugin "exim_mailqueue"
-munin_plugin "exim_mailstats"
-
 prometheus_exporter "exim" do
   port 9636
   user "Debian-exim"

cookbooks/fail2ban/recipes/default.rb

@@ -52,8 +52,6 @@
   action [:enable, :start]
 end
 
-munin_plugin "fail2ban"
-
 prometheus_exporter "fail2ban" do
   port 9635
   user "root"

cookbooks/hardware/recipes/default.rb

@@ -445,38 +445,21 @@
     if controller && controller[:device]
       device = controller[:device].sub("/dev/", "")
       smart = disk[:smart_device]
-
-      if device.start_with?("cciss/") && smart =~ /^cciss,(\d+)$/
-        array = node[:hardware][:disk][:arrays][disk[:arrays].first]
-        munin = "cciss-3#{array[:wwn]}-#{Regexp.last_match(1)}"
-      elsif smart =~ /^.*,(\d+)$/
-        munin = "#{device}-#{Regexp.last_match(1)}"
-      elsif smart =~ %r{^.*,(\d+)/(\d+)$}
-        munin = "#{device}-#{Regexp.last_match(1)}:#{Regexp.last_match(2)}"
-      end
     elsif disk[:device]
       device = disk[:device].sub("/dev/", "")
       smart = disk[:smart_device]
-
-      if smart =~ /^.*,(\d+),(\d+),(\d+)$/
-        munin = "#{device}-#{Regexp.last_match(1)}:#{Regexp.last_match(2)}:#{Regexp.last_match(3)}"
-      end
     end
   elsif disk[:device] =~ %r{^/dev/(nvme\d+)n\d+$}
     device = Regexp.last_match(1)
-    munin = device
   elsif disk[:device]
     device = disk[:device].sub("/dev/", "")
-    munin = device
   end
 
-  next if device.nil? || munin.nil?
+  next if device.nil?
 
   Hash[
     :device => device,
-    :smart => smart,
-    :munin => munin,
-    :hddtemp => munin.tr("-:", "_")
+    :smart => smart
   ]
 end
 
@@ -536,48 +519,12 @@
     private_users false
     protect_clock false
   end
-
-  # Don't try and do munin monitoring of disks behind
-  # an Areca controller as they only allow one thing to
-  # talk to the controller at a time and smartd will
-  # throw errors if it clashes with munin
-  disks = disks.reject { |disk| disk[:smart]&.start_with?("areca,") }
-
-  disks.each do |disk|
-    munin_plugin "smart_#{disk[:munin]}" do
-      target "smart_"
-      conf "munin.smart.erb"
-      conf_variables :disk => disk
-    end
-  end
 else
   service "smartd" do
     action [:stop, :disable]
   end
 end
 
-if disks.count.positive?
-  munin_plugin "hddtemp_smartctl" do
-    conf "munin.hddtemp.erb"
-    conf_variables :disks => disks
-  end
-else
-  munin_plugin "hddtemp_smartctl" do
-    action :delete
-    conf "munin.hddtemp.erb"
-  end
-end
-
-plugins = Dir.glob("/etc/munin/plugins/smart_*").map { |p| File.basename(p) } -
-          disks.map { |d| "smart_#{d[:munin]}" }
-
-plugins.each do |plugin|
-  munin_plugin plugin do
-    action :delete
-    conf "munin.smart.erb"
-  end
-end
-
 if File.exist?("/etc/mdadm/mdadm.conf")
   mdadm_conf = edit_file "/etc/mdadm/mdadm.conf" do |line|
     line.gsub!(/^MAILADDR .*$/, "MAILADDR admins@openstreetmap.org")

cookbooks/hardware/templates/default/munin.hddtemp.erb

@@ -35,16 +35,6 @@
   notifies :restart, "service[memcached]"
 end
 
-munin_plugin_conf "memcached_multi" do
-  template "munin.erb"
-end
-
-%w[bytes commands conns evictions items memory].each do |stat|
-  munin_plugin "memcached_multi_#{stat}" do
-    target "memcached_multi_"
-  end
-end
-
 prometheus_exporter "memcached" do
   port 9150
   options "--memcached.address=#{node[:memcached][:ip_address]}:#{node[:memcached][:tcp_port]} --memcached.pid-file=/run/memcached/memcached.pid"