diff --git a/lib/vmpooler.rb b/lib/vmpooler.rb
index dbb1bd0..bb84d21 100644
--- a/lib/vmpooler.rb
+++ b/lib/vmpooler.rb
@@ -18,4 +18,47 @@ module Vmpooler
       require File.expand_path(File.join(File.dirname(__FILE__), 'vmpooler', lib))
     end
   end
+
+  def self.config(filepath='vmpooler.yaml')
+    # Load the configuration file
+    config_file = File.expand_path(filepath)
+    parsed_config = YAML.load_file(config_file)
+
+    # Set some defaults
+    parsed_config[:redis]             ||= {}
+    parsed_config[:redis]['server']   ||= 'localhost'
+    parsed_config[:redis]['data_ttl'] ||= 168
+
+    parsed_config[:config]['task_limit']   ||= 10
+    parsed_config[:config]['vm_checktime'] ||= 15
+    parsed_config[:config]['vm_lifetime']  ||= 24
+
+    if parsed_config[:graphite]['server']
+      parsed_config[:graphite]['prefix'] ||= 'vmpooler'
+    end
+
+    parsed_config[:uptime] = Time.now
+
+    parsed_config
+  end
+
+  def self.new_redis(host='localhost')
+    Redis.new(host: host)
+  end
+
+  def self.new_logger(logfile)
+    Vmpooler::Logger.new logfile
+  end
+
+  def self.new_graphite(server)
+    if server.nil? or server.empty? or server.length == 0
+      nil
+    else
+      Vmpooler::Graphite.new server
+    end
+  end
+
+  def self.pools(conf)
+    conf[:pools]
+  end
 end
diff --git a/lib/vmpooler/api.rb b/lib/vmpooler/api.rb
index 6b8419e..2219614 100644
--- a/lib/vmpooler/api.rb
+++ b/lib/vmpooler/api.rb
@@ -1,24 +1,7 @@
 module Vmpooler
   class API < Sinatra::Base
     def initialize
-      # Load the configuration file
-      config_file = File.expand_path('vmpooler.yaml')
-      $config = YAML.load_file(config_file)
-
-      $config[:uptime] = Time.now
-
-      # Set some defaults
-      $config[:redis] ||= {}
-      $config[:redis]['server'] ||= 'localhost'
-
-      if $config[:graphite]['server']
-        $config[:graphite]['prefix'] ||= 'vmpooler'
-      end
-
-      # Connect to Redis
-      $redis = Redis.new(host: $config[:redis]['server'])
-
-      super()
+      super
     end
 
     set :environment, :production
@@ -51,8 +34,14 @@ module Vmpooler
     use Vmpooler::API::Reroute
     use Vmpooler::API::V1
 
-    Thread.new do
-      run!
+    def configure(config, redis, environment = :production)
+      self.settings.set :config, config
+      self.settings.set :redis, redis
+      self.settings.set :environment, environment
+    end
+
+    def execute!
+      self.settings.run!
     end
   end
 end
diff --git a/lib/vmpooler/api/dashboard.rb b/lib/vmpooler/api/dashboard.rb
index 4fe4514..c36fa4b 100644
--- a/lib/vmpooler/api/dashboard.rb
+++ b/lib/vmpooler/api/dashboard.rb
@@ -6,19 +6,19 @@ module Vmpooler
 
       result = {}
 
-      $config[:pools].each do |pool|
+      Vmpooler::API.settings.config[:pools].each do |pool|
         result[pool['name']] ||= {}
         result[pool['name']]['size'] = pool['size']
         result[pool['name']]['ready'] = $redis.scard('vmpooler__ready__' + pool['name'])
       end
 
       if params[:history]
-        if $config[:graphite]['server']
+        if Vmpooler::API.settings.config[:graphite]['server']
           history ||= {}
 
           begin
             buffer = open(
-              'http://' + $config[:graphite]['server'] + '/render?target=' + $config[:graphite]['prefix'] + '.ready.*&from=-1hour&format=json'
+              'http://' + Vmpooler::API.settings.config[:graphite]['server'] + '/render?target=' + Vmpooler::API.settings.config[:graphite]['prefix'] + '.ready.*&from=-1hour&format=json'
             ).read
             history = JSON.parse(buffer)
 
@@ -46,9 +46,9 @@ module Vmpooler
           rescue
           end
         else
-          $config[:pools].each do |pool|
+          Vmpooler::API.settings.config[:pools].each do |pool|
             result[pool['name']] ||= {}
-            result[pool['name']]['history'] = [$redis.scard('vmpooler__ready__' + pool['name'])]
+            result[pool['name']]['history'] = [Vmpooler::API.settings.redis.scard('vmpooler__ready__' + pool['name'])]
           end
         end
       end
@@ -61,8 +61,8 @@ module Vmpooler
 
       result = {}
 
-      $config[:pools].each do |pool|
-        running = $redis.scard('vmpooler__running__' + pool['name'])
+      Vmpooler::API.settings.config[:pools].each do |pool|
+        running = Vmpooler::API.settings.redis.scard('vmpooler__running__' + pool['name'])
         pool['major'] = Regexp.last_match[1] if pool['name'] =~ /^(\w+)\-/
 
         result[pool['major']] ||= {}
@@ -71,10 +71,10 @@ module Vmpooler
       end
 
       if params[:history]
-        if $config[:graphite]['server']
+        if Vmpooler::API.settings.config[:graphite]['server']
           begin
             buffer = open(
-              'http://' + $config[:graphite]['server'] + '/render?target=' + $config[:graphite]['prefix'] + '.running.*&from=-1hour&format=json'
+              'http://' + Vmpooler::API.settings.config[:graphite]['server'] + '/render?target=' + Vmpooler::API.settings.config[:graphite]['prefix'] + '.running.*&from=-1hour&format=json'
             ).read
             JSON.parse(buffer).each do |pool|
               if pool['target'] =~ /.*\.(.*)$/
diff --git a/lib/vmpooler/api/v1.rb b/lib/vmpooler/api/v1.rb
index 1e3f9e9..1656219 100644
--- a/lib/vmpooler/api/v1.rb
+++ b/lib/vmpooler/api/v1.rb
@@ -12,8 +12,8 @@ module Vmpooler
           percent: 0
         }
 
-        $config[:pools].each do |pool|
-          pool['capacity'] = $redis.scard('vmpooler__ready__' + pool['name']).to_i
+        Vmpooler::API.settings.config[:pools].each do |pool|
+          pool['capacity'] = Vmpooler::API.settings.redis.scard('vmpooler__ready__' + pool['name']).to_i
 
           capacity[:current] += pool['capacity']
           capacity[:total] += pool['size'].to_i
@@ -37,14 +37,14 @@ module Vmpooler
           total: 0
         }
 
-        $config[:pools].each do |pool|
-          queue[:pending] += $redis.scard('vmpooler__pending__' + pool['name']).to_i
-          queue[:ready] += $redis.scard('vmpooler__ready__' + pool['name']).to_i
-          queue[:running] += $redis.scard('vmpooler__running__' + pool['name']).to_i
-          queue[:completed] += $redis.scard('vmpooler__completed__' + pool['name']).to_i
+        Vmpooler::API.settings.config[:pools].each do |pool|
+          queue[:pending] += Vmpooler::API.settings.redis.scard('vmpooler__pending__' + pool['name']).to_i
+          queue[:ready] += Vmpooler::API.settings.redis.scard('vmpooler__ready__' + pool['name']).to_i
+          queue[:running] += Vmpooler::API.settings.redis.scard('vmpooler__running__' + pool['name']).to_i
+          queue[:completed] += Vmpooler::API.settings.redis.scard('vmpooler__completed__' + pool['name']).to_i
         end
 
-        queue[:cloning] = $redis.get('vmpooler__tasks__clone').to_i
+        queue[:cloning] = Vmpooler::API.settings.redis.get('vmpooler__tasks__clone').to_i
         queue[:booting] = queue[:pending].to_i - queue[:cloning].to_i
         queue[:booting] = 0 if queue[:booting] < 0
         queue[:total] = queue[:pending].to_i + queue[:ready].to_i + queue[:running].to_i + queue[:completed].to_i
@@ -67,7 +67,7 @@ module Vmpooler
           }
         }
 
-        task[:count][:total] = $redis.hlen('vmpooler__' + task_str + '__' + date_str).to_i
+        task[:count][:total] = Vmpooler::API.settings.redis.hlen('vmpooler__' + task_str + '__' + date_str).to_i
 
         if task[:count][:total] > 0
           if opts[:bypool] == true
@@ -76,7 +76,7 @@ module Vmpooler
             task[:count][:pool] = {}
             task[:duration][:pool] = {}
 
-            $redis.hgetall('vmpooler__' + task_str + '__' + date_str).each do |key, value|
+            Vmpooler::API.settings.redis.hgetall('vmpooler__' + task_str + '__' + date_str).each do |key, value|
               pool = 'unknown'
               hostname = 'unknown'
 
@@ -113,11 +113,11 @@ module Vmpooler
       end
 
       def get_task_times(task, date_str)
-        $redis.hvals("vmpooler__#{task}__" + date_str).map(&:to_f)
+        Vmpooler::API.settings.redis.hvals("vmpooler__#{task}__" + date_str).map(&:to_f)
       end
 
       def hostname_shorten(hostname)
-        if $config[:config]['domain'] && hostname =~ /^\w+\.#{$config[:config]['domain']}$/
+        if Vmpooler::API.settings.config[:config]['domain'] && hostname =~ /^\w+\.#{Vmpooler::API.settings.config[:config]['domain']}$/
           hostname = hostname[/[^\.]+/]
         end
 
@@ -150,8 +150,8 @@ module Vmpooler
       result[:boot] = get_task_metrics('boot', Date.today.to_s)
 
       # Check for empty pools
-      $config[:pools].each do |pool|
-        if $redis.scard('vmpooler__ready__' + pool['name']).to_i == 0
+      Vmpooler::API.settings.config[:pools].each do |pool|
+        if Vmpooler::API.settings.redis.scard('vmpooler__ready__' + pool['name']).to_i == 0
           result[:status][:empty] ||= []
           result[:status][:empty].push(pool['name'])
 
@@ -160,7 +160,7 @@ module Vmpooler
         end
       end
 
-      result[:status][:uptime] = (Time.now - $config[:uptime]).round(1) if $config[:uptime]
+      result[:status][:uptime] = (Time.now - Vmpooler::API.settings.config[:uptime]).round(1) if Vmpooler::API.settings.config[:uptime]
 
       JSON.pretty_generate(Hash[result.sort_by { |k, _v| k }])
     end
@@ -304,7 +304,7 @@ module Vmpooler
 
       result = []
 
-      $config[:pools].each do |pool|
+      Vmpooler::API.settings.config[:pools].each do |pool|
         result.push(pool['name'])
       end
 
@@ -321,7 +321,7 @@ module Vmpooler
       jdata = JSON.parse(request.body.read)
 
       jdata.each do |key, val|
-        if $redis.scard('vmpooler__ready__' + key) < val.to_i
+        if Vmpooler::API.settings.redis.scard('vmpooler__ready__' + key) < val.to_i
           available = 0
         end
       end
@@ -335,12 +335,12 @@ module Vmpooler
           result[key]['ok'] = true ##
 
           val.to_i.times do |_i|
-            vm = $redis.spop('vmpooler__ready__' + key)
+            vm = Vmpooler::API.settings.redis.spop('vmpooler__ready__' + key)
 
             unless vm.nil?
-              $redis.sadd('vmpooler__running__' + key, vm)
-              $redis.hset('vmpooler__active__' + key, vm, Time.now)
-              $redis.hset('vmpooler__vm__' + vm, 'checkout', Time.now)
+              Vmpooler::API.settings.redis.sadd('vmpooler__running__' + key, vm)
+              Vmpooler::API.settings.redis.hset('vmpooler__active__' + key, vm, Time.now)
+              Vmpooler::API.settings.redis.hset('vmpooler__vm__' + vm, 'checkout', Time.now)
 
               result[key] ||= {}
 
@@ -365,8 +365,8 @@ module Vmpooler
         result['ok'] = false
       end
 
-      if result['ok'] && $config[:config]['domain']
-        result['domain'] = $config[:config]['domain']
+      if result['ok'] && Vmpooler::API.settings.config[:config]['domain']
+        result['domain'] = Vmpooler::API.settings.config[:config]['domain']
       end
 
       JSON.pretty_generate(result)
@@ -386,7 +386,7 @@ module Vmpooler
       available = 1
 
       request.keys.each do |template|
-        if $redis.scard('vmpooler__ready__' + template) < request[template]
+        if Vmpooler::API.settings.redis.scard('vmpooler__ready__' + template) < request[template]
           available = 0
         end
       end
@@ -399,12 +399,12 @@ module Vmpooler
 
           result[template]['ok'] = true ##
 
-          vm = $redis.spop('vmpooler__ready__' + template)
+          vm = Vmpooler::API.settings.redis.spop('vmpooler__ready__' + template)
 
           unless vm.nil?
-            $redis.sadd('vmpooler__running__' + template, vm)
-            $redis.hset('vmpooler__active__' + template, vm, Time.now)
-            $redis.hset('vmpooler__vm__' + vm, 'checkout', Time.now)
+            Vmpooler::API.settings.redis.sadd('vmpooler__running__' + template, vm)
+            Vmpooler::API.settings.redis.hset('vmpooler__active__' + template, vm, Time.now)
+            Vmpooler::API.settings.redis.hset('vmpooler__vm__' + vm, 'checkout', Time.now)
 
             result[template] ||= {}
 
@@ -426,8 +426,8 @@ module Vmpooler
         result['ok'] = false
       end
 
-      if result['ok'] && $config[:config]['domain']
-        result['domain'] = $config[:config]['domain']
+      if result['ok'] && Vmpooler::API.settings.config[:config]['domain']
+        result['domain'] = Vmpooler::API.settings.config[:config]['domain']
       end
 
       JSON.pretty_generate(result)
@@ -443,16 +443,16 @@ module Vmpooler
 
       params[:hostname] = hostname_shorten(params[:hostname])
 
-      if $redis.exists('vmpooler__vm__' + params[:hostname])
+      if Vmpooler::API.settings.redis.exists('vmpooler__vm__' + params[:hostname])
         status 200
         result['ok'] = true
 
-        rdata = $redis.hgetall('vmpooler__vm__' + params[:hostname])
+        rdata = Vmpooler::API.settings.redis.hgetall('vmpooler__vm__' + params[:hostname])
 
         result[params[:hostname]] = {}
 
         result[params[:hostname]]['template'] = rdata['template']
-        result[params[:hostname]]['lifetime'] = rdata['lifetime'] || $config[:config]['vm_lifetime']
+        result[params[:hostname]]['lifetime'] = rdata['lifetime'] || Vmpooler::API.settings.config[:config]['vm_lifetime']
 
         if rdata['destroy']
           result[params[:hostname]]['running'] = ((Time.parse(rdata['destroy']) - Time.parse(rdata['checkout'])) / 60 / 60).round(2)
@@ -467,8 +467,8 @@ module Vmpooler
           end
         end
 
-        if $config[:config]['domain']
-          result[params[:hostname]]['domain'] = $config[:config]['domain']
+        if Vmpooler::API.settings.config[:config]['domain']
+          result[params[:hostname]]['domain'] = Vmpooler::API.settings.config[:config]['domain']
         end
       end
 
@@ -485,10 +485,10 @@ module Vmpooler
 
       params[:hostname] = hostname_shorten(params[:hostname])
 
-      $config[:pools].each do |pool|
-        if $redis.sismember('vmpooler__running__' + pool['name'], params[:hostname])
-          $redis.srem('vmpooler__running__' + pool['name'], params[:hostname])
-          $redis.sadd('vmpooler__completed__' + pool['name'], params[:hostname])
+      Vmpooler::API.settings.config[:pools].each do |pool|
+        if Vmpooler::API.settings.redis.sismember('vmpooler__running__' + pool['name'], params[:hostname])
+          Vmpooler::API.settings.redis.srem('vmpooler__running__' + pool['name'], params[:hostname])
+          Vmpooler::API.settings.redis.sadd('vmpooler__completed__' + pool['name'], params[:hostname])
 
           status 200
           result['ok'] = true
@@ -510,7 +510,7 @@ module Vmpooler
 
       params[:hostname] = hostname_shorten(params[:hostname])
 
-      if $redis.exists('vmpooler__vm__' + params[:hostname])
+      if Vmpooler::API.settings.redis.exists('vmpooler__vm__' + params[:hostname])
         begin
           jdata = JSON.parse(request.body.read)
         rescue
@@ -542,10 +542,10 @@ module Vmpooler
               when 'lifetime'
                 arg = arg.to_i
 
-                $redis.hset('vmpooler__vm__' + params[:hostname], param, arg)
+                Vmpooler::API.settings.redis.hset('vmpooler__vm__' + params[:hostname], param, arg)
               when 'tags'
                 arg.keys.each do |tag|
-                    $redis.hset('vmpooler__vm__' + params[:hostname], 'tag:' + tag, arg[tag])
+                    Vmpooler::API.settings.redis.hset('vmpooler__vm__' + params[:hostname], 'tag:' + tag, arg[tag])
                 end
             end
           end
diff --git a/lib/vmpooler/janitor.rb b/lib/vmpooler/janitor.rb
index 91e0f3f..075c477 100644
--- a/lib/vmpooler/janitor.rb
+++ b/lib/vmpooler/janitor.rb
@@ -1,32 +1,26 @@
 module Vmpooler
   class Janitor
-    def initialize
-      # Load the configuration file
-      config_file = File.expand_path('vmpooler.yaml')
-      $config = YAML.load_file(config_file)
-
-      # Set some defaults
-      $config[:redis]             ||= {}
-      $config[:redis]['server']   ||= 'localhost'
-      $config[:redis]['data_ttl'] ||= 168
-
+    def initialize(logger, redis, data_ttl)
       # Load logger library
-      $logger = Vmpooler::Logger.new $config[:config]['logfile']
+      $logger = logger
 
       # Connect to Redis
-      $redis = Redis.new(host: $config[:redis]['server'])
+      $redis = redis
+
+      # TTL
+      $data_ttl = data_ttl
     end
 
     def execute!
 
       loop do
         $redis.keys('vmpooler__vm__*').each do |key|
-          data = $redis.hgetall(key);
+          data = $redis.hgetall(key)
 
           if data['destroy']
             lifetime = (Time.now - Time.parse(data['destroy'])) / 60 / 60
 
-            if lifetime > $config[:redis]['data_ttl']
+            if lifetime > $data_ttl
               $redis.del(key)
             end
           end
diff --git a/lib/vmpooler/pool_manager.rb b/lib/vmpooler/pool_manager.rb
index b6f7ee8..07dd7cd 100644
--- a/lib/vmpooler/pool_manager.rb
+++ b/lib/vmpooler/pool_manager.rb
@@ -1,30 +1,19 @@
 module Vmpooler
   class PoolManager
-    def initialize
-      # Load the configuration file
-      config_file = File.expand_path('vmpooler.yaml')
-      $config = YAML.load_file(config_file)
+    def initialize(config, pools, logger, redis, graphite=nil)
+      $config = config
 
-      $pools   = $config[:pools]
-
-      # Set some defaults
-      $config[:config]['task_limit']   ||= 10
-      $config[:config]['vm_checktime'] ||= 15
-      $config[:config]['vm_lifetime']  ||= 24
-      $config[:redis]             ||= {}
-      $config[:redis]['server']   ||= 'localhost'
+      $pools   = pools
 
       # Load logger library
-      $logger = Vmpooler::Logger.new $config[:config]['logfile']
+      $logger = logger
 
-      # Load Graphite helper library (if configured)
-      if defined? $config[:graphite]['server']
-        $config[:graphite]['prefix'] ||= 'vmpooler'
-        $graphite = Vmpooler::Graphite.new $config[:graphite]['server']
+      unless graphite.nil?
+        $graphite = graphite
       end
 
       # Connect to Redis
-      $redis = Redis.new(host: $config[:redis]['server'])
+      $redis = redis
 
       # vSphere object
       $vsphere = {}
diff --git a/vmpooler b/vmpooler
index 51dc258..7193426 100755
--- a/vmpooler
+++ b/vmpooler
@@ -5,10 +5,27 @@ $LOAD_PATH.unshift(File.dirname(__FILE__))
 require 'rubygems' unless defined?(Gem)
 require 'lib/vmpooler'
 
-Thread.new { Vmpooler::API.new.execute! }
-Thread.new { Vmpooler::Janitor.new.execute! }
-Thread.new { Vmpooler::PoolManager.new.execute! }
+config = Vmpooler.config
+redis_host = config[:redis]['server']
+redis_ttl = config[:redis]['data_ttl']
+logger_file = config[:config]['logfile']
+graphite = defined? config[:graphite]['server'] ? config[:graphite]['server'] : nil
+
+api = Thread.new {
+        thr = Vmpooler::API.new
+        thr.helpers.configure(config, Vmpooler.new_redis(redis_host))
+        thr.helpers.execute!
+      }
+janitor = Thread.new {
+            Vmpooler::Janitor.new(Vmpooler.new_logger(logger_file), Vmpooler.new_redis(redis_host), redis_ttl).execute!
+          }
+manager = Thread.new {
+            Vmpooler::PoolManager.new(config,
+                                      config[:pools],
+                                      Vmpooler.new_logger(logger_file),
+                                      Vmpooler.new_redis(redis_host),
+                                      Vmpooler.new_graphite(graphite)).execute!
+          }
+
+[api, janitor, manager].each { |t| t.join }
 
-loop do
-  sleep(10)
-end