Multi platform

attributes/default.rb

@@ -11,3 +11,9 @@
 monit
 EOS
 
+case node['platform']
+  when "centos", "redhat", "fedora"
+    default[:monit][:include_dir] = '/etc/monit.d'
+  else
+    default[:monit][:include_dir] = '/etc/monit/conf.d'
+end

files/debian/monit.default

@@ -0,0 +1,11 @@
+# Defaults for monit initscript
+# sourced by /etc/init.d/monit
+# installed at /etc/default/monit by chef
+
+# You must set this variable to for monit to start
+startup=1
+
+# To change the intervals which monit should run,
+# edit the configuration file /etc/monit/monitrc
+# It can no longer be configured here.
+

files/default/dummy.conf

@@ -0,0 +1 @@
+#an empty file because monit would not start if the conf.d dir is empty

libraries/monitrc.rb

@@ -4,14 +4,22 @@ class Recipe
     # variables   Hash of variables to pass to the template
     # reload      Reload monit so it notices the new service.  :delayed (default) or :immediately.
     def monitrc(name, variables={}, reload = :delayed)
-      log "Making monitrc for: #{name}"
-      template "/etc/monit/conf.d/#{name}.conf" do
+      Chef::Log.info "Making monitrc for: #{name}"
+
+      action = :restart
+      if platform?(%W(fedora centos redhat))
+        action = :reload
+      end
+
+      template "#{node[:monit][:include_dir]}/#{name}.conf" do
         owner "root"
         group "root"
         mode 0644
+        #this should be "monit/#{name}.conf.erb" or "#{name}.monit.conf.erb" to not conflict with other conf files
+        #but this is a non backward compat change. I'll leave it to the owner of the cookbook
         source "#{name}.conf.erb"
         variables variables
-        notifies :restart, resources(:service => "monit"), reload
+        notifies action, resources(:service => "monit"), reload
         action :create
       end
     end

metadata.rb

@@ -5,6 +5,9 @@
 long_description IO.read(File.join(File.dirname(__FILE__), 'README.rdoc'))
 version          "0.7"
 
+%w{debian ubuntu redhat centos fedora}.each do |os|
+  supports os
+end
 
 attribute 'monit/notify_email', 
   :description => 'The email address to send alerts to.',
@@ -20,4 +23,3 @@
   :description => 'When monit first starts, how long to delay before it starts performing checks',
   :type => "string",
   :required => "recommended"
-

recipes/default.rb

@@ -2,33 +2,63 @@
   action :install
 end
 
-if platform?("ubuntu")
+#### prepare directories and additional things ###
+include_dir = node[:monit][:include_dir]
+if platform?(%W(fedora centos redhat))
+  directory include_dir do
+    owner 'root'
+    group 'root'
+    action :create
+    recursive true
+  end
+else
+  #assume debian|ubuntu
+  directory include_dir do
+    owner 'root'
+    group 'root'
+    action :create
+    recursive true
+  end
   cookbook_file "/etc/default/monit" do
     source "monit.default"
     owner "root"
     group "root"
     mode 0644
   end
 end
+cookbook_file "#{include_dir}/dummy.conf" do
+  #this is a dummy file in conf.d, monit will not start with this directory empty
+  source "dummy.conf"
+end
 
-service "monit" do
-  action :start
-  enabled true
-  supports [:start, :restart, :stop]
+#### main conf ####
+if platform?(%W(fedora centos redhat))
+  template "monit_conf" do
+    path "/etc/monit.conf"
+    source 'monitrc.erb'
+    owner "root"
+    group "root"
+    variables :include_path => "#{include_dir}/*.conf"
+  end
+else
+  #assume debian|ubuntu
+  template "monit_conf" do
+    path "/etc/monit/monitrc"
+    source 'monitrc.erb'
+    owner "root"
+    group "root"
+    variables :include_path => "#{include_dir}/*.conf"
+  end
 end
 
-template "/etc/monit/monitrc" do
-  owner "root"
-  group "root"
-  mode 0700
-  source 'monitrc.erb'
-  notifies :restart, resources(:service => "monit"), :immediate
+#### service ####
+supports = [:start, :restart, :stop]
+if platform?(%W(fedora centos redhat))
+  supports << :reload
 end
 
-directory "/etc/monit/conf.d/" do
-  owner  'root'
-  group 'root'
-  mode 0755
-  action :create
-  recursive true
+service "monit" do
+  action [:enable, :start]
+  supports supports
+  subscribes :restart, resources(:template => "monit_conf"), :immediate
 end

templates/centos/monitrc.erb

@@ -0,0 +1,242 @@
+###############################################################################
+## Monit control file. CHEF HANDLED!!!
+###############################################################################
+##
+## Comments begin with a '#' and extend through the end of the line. Keywords
+## are case insensitive. All path's MUST BE FULLY QUALIFIED, starting with '/'.
+##
+## Below you will find examples of some frequently used statements. For
+## information about the control file and a complete list of statements and
+## options, please have a look in the Monit manual.
+##
+##
+###############################################################################
+## Global section
+###############################################################################
+##
+## Start Monit in the background (run as a daemon):
+#
+set daemon  <%= @node[:monit][:poll_period] %>                 # check services at 2-minute intervals
+#                                                              # default Monit check immediately after Monit start)
+#
+#
+## Set syslog logging with the 'daemon' facility. If the FACILITY option is
+## omitted, Monit will use 'user' facility by default. If you want to log to
+## a standalone log file instead, specify the full path to the log file
+#
+set logfile syslog facility log_daemon
+#
+#
+### Set the location of the Monit id file which stores the unique id for the
+### Monit instance. The id is generated and stored on first Monit start. By
+### default the file is placed in $HOME/.monit.id.
+#
+# set idfile /var/.monit.id
+#
+### Set the location of the Monit state file which saves monitoring states
+### on each cycle. By default the file is placed in $HOME/.monit.state. If
+### the state file is stored on a persistent filesystem, Monit will recover
+### the monitoring state across reboots. If it is on temporary filesystem, the
+### state will be lost on reboot which may be convenient in some situations.
+#
+# set statefile /var/.monit.state
+#
+## Set the list of mail servers for alert delivery. Multiple servers may be
+## specified using a comma separator. By default Monit uses port 25 - it is
+## possible to override this with the PORT option.
+#
+# set mailserver mail.bar.baz,               # primary mailserver
+#                backup.bar.baz port 10025,  # backup mailserver on port 10025
+#                localhost                   # fallback relay
+#
+#
+## By default Monit will drop alert events if no mail servers are available.
+## If you want to keep the alerts for later delivery retry, you can use the
+## EVENTQUEUE statement. The base directory where undelivered alerts will be
+## stored is specified by the BASEDIR option. You can limit the maximal queue
+## size using the SLOTS option (if omitted, the queue is limited by space
+## available in the back end filesystem).
+#
+# set eventqueue
+#     basedir /var/monit  # set the base directory where events will be stored
+#     slots 100           # optionally limit the queue size
+#
+#
+## Send status and events to M/Monit (for more informations about M/Monit
+## see http://mmonit.com/).
+#
+# set mmonit http://monit:[email protected]:8080/collector
+#
+#
+## Monit by default uses the following alert mail format:
+##
+## --8<--
+## From: monit@$HOST                         # sender
+## Subject: monit alert --  $EVENT $SERVICE  # subject
+##
+## $EVENT Service $SERVICE                   #
+##                                           #
+## 	Date:        $DATE                   #
+## 	Action:      $ACTION                 #
+## 	Host:        $HOST                   # body
+## 	Description: $DESCRIPTION            #
+##                                           #
+## Your faithful employee,                   #
+## Monit                                     #
+## --8<--
+##
+## You can override this message format or parts of it, such as subject
+## or sender using the MAIL-FORMAT statement. Macros such as $DATE, etc.
+## are expanded at runtime. For example, to override the sender, use:
+#
+set mail-format {
+  from: <%= @node[:monit][:mail_format][:from] %>
+  subject: <%= @node[:monit][:mail_format][:subject] %>
+  message: <%= @node[:monit][:mail_format][:message] %>
+}
+#
+#
+## You can set alert recipients whom will receive alerts if/when a
+## service defined in this file has errors. Alerts may be restricted on
+## events by using a filter as in the second example below.
+#
+# set alert [email protected]                       # receive all alerts
+# set alert [email protected] only on { timeout }  # receive just service-
+#                                                # timeout alert
+#
+#
+## Monit has an embedded web server which can be used to view status of
+## services monitored and manage services from a web interface. See the
+## Monit Wiki if you want to enable SSL for the web server.
+#
+set httpd port 2812 and
+    use address localhost  # only accept connection from localhost
+    allow localhost        # allow localhost to connect to the server and
+#     allow admin:monit      # require user 'admin' with password 'monit'
+#     allow @monit           # allow users of group 'monit' to connect (rw)
+#     allow @users readonly  # allow users of group 'users' to connect readonly
+#
+#
+###############################################################################
+## Services
+###############################################################################
+##
+## Check general system resources such as load average, cpu and memory
+## usage. Each test specifies a resource, conditions and the action to be
+## performed should a test fail.
+#
+#  check system myhost.mydomain.tld
+#    if loadavg (1min) > 4 then alert
+#    if loadavg (5min) > 2 then alert
+#    if memory usage > 75% then alert
+#    if cpu usage (user) > 70% then alert
+#    if cpu usage (system) > 30% then alert
+#    if cpu usage (wait) > 20% then alert
+#
+#
+## Check a file for existence, checksum, permissions, uid and gid. In addition
+## to alert recipients in the global section, customized alert can be sent to
+## additional recipients by specifying a local alert handler. The service may
+## be grouped using the GROUP option. More than one group can be specified by
+## repeating the 'group name' statement.
+#
+#  check file apache_bin with path /usr/local/apache/bin/httpd
+#    if failed checksum and
+#       expect the sum 8f7f419955cefa0b33a2ba316cba3659 then unmonitor
+#    if failed permission 755 then unmonitor
+#    if failed uid root then unmonitor
+#    if failed gid root then unmonitor
+#    alert [email protected] on {
+#           checksum, permission, uid, gid, unmonitor
+#        } with the mail-format { subject: Alarm! }
+#    group server
+#
+#
+## Check that a process is running, in this case Apache, and that it respond
+## to HTTP and HTTPS requests. Check its resource usage such as cpu and memory,
+## and number of children. If the process is not running, Monit will restart
+## it by default. In case the service is restarted very often and the
+## problem remains, it is possible to disable monitoring using the TIMEOUT
+## statement. This service depends on another service (apache_bin) which
+## is defined above.
+#
+#  check process apache with pidfile /usr/local/apache/logs/httpd.pid
+#    start program = "/etc/init.d/httpd start" with timeout 60 seconds
+#    stop program  = "/etc/init.d/httpd stop"
+#    if cpu > 60% for 2 cycles then alert
+#    if cpu > 80% for 5 cycles then restart
+#    if totalmem > 200.0 MB for 5 cycles then restart
+#    if children > 250 then restart
+#    if loadavg(5min) greater than 10 for 8 cycles then stop
+#    if failed host www.tildeslash.com port 80 protocol http
+#       and request "/somefile.html"
+#       then restart
+#    if failed port 443 type tcpssl protocol http
+#       with timeout 15 seconds
+#       then restart
+#    if 3 restarts within 5 cycles then timeout
+#    depends on apache_bin
+#    group server
+#
+#
+## Check filesystem permissions, uid, gid, space and inode usage. Other services,
+## such as databases, may depend on this resource and an automatically graceful
+## stop may be cascaded to them before the filesystem will become full and data
+## lost.
+#
+#  check filesystem datafs with path /dev/sdb1
+#    start program  = "/bin/mount /data"
+#    stop program  = "/bin/umount /data"
+#    if failed permission 660 then unmonitor
+#    if failed uid root then unmonitor
+#    if failed gid disk then unmonitor
+#    if space usage > 80% for 5 times within 15 cycles then alert
+#    if space usage > 99% then stop
+#    if inode usage > 30000 then alert
+#    if inode usage > 99% then stop
+#    group server
+#
+#
+## Check a file's timestamp. In this example, we test if a file is older
+## than 15 minutes and assume something is wrong if its not updated. Also,
+## if the file size exceed a given limit, execute a script
+#
+#  check file database with path /data/mydatabase.db
+#    if failed permission 700 then alert
+#    if failed uid data then alert
+#    if failed gid data then alert
+#    if timestamp > 15 minutes then alert
+#    if size > 100 MB then exec "/my/cleanup/script" as uid dba and gid dba
+#
+#
+## Check directory permission, uid and gid.  An event is triggered if the
+## directory does not belong to the user with uid 0 and gid 0.  In addition,
+## the permissions have to match the octal description of 755 (see chmod(1)).
+#
+#  check directory bin with path /bin
+#    if failed permission 755 then unmonitor
+#    if failed uid 0 then unmonitor
+#    if failed gid 0 then unmonitor
+#
+#
+## Check a remote host availability by issuing a ping test and check the
+## content of a response from a web server. Up to three pings are sent and
+## connection to a port and an application level network check is performed.
+#
+#  check host myserver with address 192.168.1.1
+#    if failed icmp type echo count 3 with timeout 3 seconds then alert
+#    if failed port 3306 protocol mysql with timeout 15 seconds then alert
+#    if failed url http://user:[email protected]:8080/?querystring
+#       and content == 'action="j_security_check"'
+#       then alert
+#
+#
+###############################################################################
+## Includes
+###############################################################################
+##
+## It is possible to include additional configuration parts from other files or
+## directories.
+#
+
+include <%= @include_path %>