diff --git a/src/Symfony/Bundle/FrameworkBundle/Command/ContainerDebugCommand.php b/src/Symfony/Bundle/FrameworkBundle/Command/ContainerDebugCommand.php
index 8e8bf8ca3c0ff..f71851a23ace3 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Command/ContainerDebugCommand.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Command/ContainerDebugCommand.php
@@ -12,6 +12,7 @@
 namespace Symfony\Bundle\FrameworkBundle\Command;
 
 use Symfony\Bundle\FrameworkBundle\Console\Helper\DescriptorHelper;
+use Symfony\Component\Config\ConfigCache;
 use Symfony\Component\Console\Input\InputArgument;
 use Symfony\Component\Console\Input\InputOption;
 use Symfony\Component\Console\Input\InputInterface;
@@ -176,19 +177,17 @@ protected function getContainerBuilder()
             return $this->containerBuilder;
         }
 
-        if (!$this->getApplication()->getKernel()->isDebug()) {
-            throw new \LogicException('Debug information about the container is only available in debug mode.');
-        }
+        $kernel = $this->getApplication()->getKernel();
 
-        if (!is_file($cachedFile = $this->getContainer()->getParameter('debug.container.dump'))) {
-            throw new \LogicException('Debug information about the container could not be found. Please clear the cache and try again.');
+        if (!$kernel->isDebug() || !(new ConfigCache($kernel->getContainer()->getParameter('debug.container.dump'), true))->isFresh()) {
+            $buildContainer = \Closure::bind(function () { return $this->buildContainer(); }, $kernel, get_class($kernel));
+            $container = $buildContainer();
+            $container->getCompilerPassConfig()->setRemovingPasses(array());
+            $container->compile();
+        } else {
+            (new XmlFileLoader($container = new ContainerBuilder(), new FileLocator()))->load($kernel->getContainer()->getParameter('debug.container.dump'));
         }
 
-        $container = new ContainerBuilder();
-
-        $loader = new XmlFileLoader($container, new FileLocator());
-        $loader->load($cachedFile);
-
         return $this->containerBuilder = $container;
     }
 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
index 0b374855a72c5..30410b93ea329 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/JsonDescriptor.php
@@ -109,7 +109,9 @@ protected function describeContainerServices(ContainerBuilder $builder, array $o
             $service = $this->resolveServiceDefinition($builder, $serviceId);
 
             if ($service instanceof Alias) {
-                $data['aliases'][$serviceId] = $this->getContainerAliasData($service);
+                if ($showPrivate || $service->isPublic()) {
+                    $data['aliases'][$serviceId] = $this->getContainerAliasData($service);
+                }
             } elseif ($service instanceof Definition) {
                 if (($showPrivate || $service->isPublic())) {
                     $data['definitions'][$serviceId] = $this->getContainerDefinitionData($service, $omitTags, $showArguments);
diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/MarkdownDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/MarkdownDescriptor.php
index d44d577950729..33cd28d4ce53a 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/MarkdownDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/MarkdownDescriptor.php
@@ -128,7 +128,6 @@ protected function describeContainerServices(ContainerBuilder $builder, array $o
         $this->write($title."\n".str_repeat('=', strlen($title)));
 
         $serviceIds = isset($options['tag']) && $options['tag'] ? array_keys($builder->findTaggedServiceIds($options['tag'])) : $builder->getServiceIds();
-        $showPrivate = isset($options['show_private']) && $options['show_private'];
         $showArguments = isset($options['show_arguments']) && $options['show_arguments'];
         $services = array('definitions' => array(), 'aliases' => array(), 'services' => array());
 
@@ -136,7 +135,9 @@ protected function describeContainerServices(ContainerBuilder $builder, array $o
             $service = $this->resolveServiceDefinition($builder, $serviceId);
 
             if ($service instanceof Alias) {
-                $services['aliases'][$serviceId] = $service;
+                if ($showPrivate || $service->isPublic()) {
+                    $services['aliases'][$serviceId] = $service;
+                }
             } elseif ($service instanceof Definition) {
                 if (($showPrivate || $service->isPublic())) {
                     $services['definitions'][$serviceId] = $service;
diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
index 7aae3d3c198bb..fa785d48ed021 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/TextDescriptor.php
@@ -207,6 +207,11 @@ protected function describeContainerServices(ContainerBuilder $builder, array $o
                         }
                     }
                 }
+            } elseif ($definition instanceof Alias) {
+                if (!$showPrivate && !$definition->isPublic()) {
+                    unset($serviceIds[$key]);
+                    continue;
+                }
             }
         }
 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php
index 461a4e086f9cd..6ed96be1be3d6 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php
+++ b/src/Symfony/Bundle/FrameworkBundle/Console/Descriptor/XmlDescriptor.php
@@ -320,7 +320,7 @@ private function getContainerServicesDocument(ContainerBuilder $builder, $tag =
         foreach ($this->sortServiceIds($serviceIds) as $serviceId) {
             $service = $this->resolveServiceDefinition($builder, $serviceId);
 
-            if ($service instanceof Definition && !($showPrivate || $service->isPublic())) {
+            if (($service instanceof Definition || $service instanceof Alias) && !($showPrivate || $service->isPublic())) {
                 continue;
             }
 
diff --git a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/ContainerBuilderDebugDumpPass.php b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/ContainerBuilderDebugDumpPass.php
index 98fa5c95a15ec..e08fda22134f1 100644
--- a/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/ContainerBuilderDebugDumpPass.php
+++ b/src/Symfony/Bundle/FrameworkBundle/DependencyInjection/Compiler/ContainerBuilderDebugDumpPass.php
@@ -11,11 +11,10 @@
 
 namespace Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler;
 
+use Symfony\Component\Config\ConfigCache;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Dumper\XmlDumper;
 use Symfony\Component\DependencyInjection\Compiler\CompilerPassInterface;
-use Symfony\Component\Filesystem\Exception\IOException;
-use Symfony\Component\Filesystem\Filesystem;
 
 /**
  * Dumps the ContainerBuilder to a cache file so that it can be used by
@@ -28,14 +27,9 @@ class ContainerBuilderDebugDumpPass implements CompilerPassInterface
 {
     public function process(ContainerBuilder $container)
     {
-        $dumper = new XmlDumper($container);
-        $filename = $container->getParameter('debug.container.dump');
-        $filesystem = new Filesystem();
-        $filesystem->dumpFile($filename, $dumper->dump(), null);
-        try {
-            $filesystem->chmod($filename, 0666, umask());
-        } catch (IOException $e) {
-            // discard chmod failure (some filesystem may not support it)
+        $cache = new ConfigCache($container->getParameter('debug.container.dump'), true);
+        if (!$cache->isFresh()) {
+            $cache->write((new XmlDumper($container))->dump(), $container->getResources());
         }
     }
 }
diff --git a/src/Symfony/Bundle/FrameworkBundle/FrameworkBundle.php b/src/Symfony/Bundle/FrameworkBundle/FrameworkBundle.php
index 1794a86f92488..1844f9b4a4391 100644
--- a/src/Symfony/Bundle/FrameworkBundle/FrameworkBundle.php
+++ b/src/Symfony/Bundle/FrameworkBundle/FrameworkBundle.php
@@ -113,7 +113,7 @@ public function build(ContainerBuilder $container)
         if ($container->getParameter('kernel.debug')) {
             $container->addCompilerPass(new AddDebugLogProcessorPass(), PassConfig::TYPE_BEFORE_OPTIMIZATION, -32);
             $container->addCompilerPass(new UnusedTagsPass(), PassConfig::TYPE_AFTER_REMOVING);
-            $container->addCompilerPass(new ContainerBuilderDebugDumpPass(), PassConfig::TYPE_AFTER_REMOVING);
+            $container->addCompilerPass(new ContainerBuilderDebugDumpPass(), PassConfig::TYPE_BEFORE_REMOVING, -255);
             $this->addCompilerPassIfExists($container, ConfigCachePass::class);
             $container->addCompilerPass(new CacheCollectorPass());
         }
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.json b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.json
index c304b33ac2283..dd3f81f1768e4 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.json
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.json
@@ -79,10 +79,6 @@
         "alias_1": {
             "service": "service_1",
             "public": true
-        },
-        "alias_2": {
-            "service": "service_2",
-            "public": false
         }
     },
     "services": {
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.md b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.md
index 29e34d2b0d94f..757da8278ca34 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.md
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.md
@@ -27,11 +27,6 @@ Aliases
 - Service: `service_1`
 - Public: yes
 
-### alias_2
-
-- Service: `service_2`
-- Public: no
-
 
 Services
 --------
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.txt b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.txt
index 0e42596b99233..87f6b2125d764 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.txt
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.txt
@@ -6,7 +6,6 @@
   Service ID          Class name                                              
  ------------------- -------------------------------------------------------- 
   alias_1             alias for "service_1"                                   
-  alias_2             alias for "service_2"                                   
   definition_1        Full\Qualified\Class1                                   
   service_container   Symfony\Component\DependencyInjection\ContainerBuilder  
  ------------------- -------------------------------------------------------- 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.xml
index 2d4de06aa84cb..91b292da50248 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_arguments.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <container>
   <alias id="alias_1" service="service_1" public="true"/>
-  <alias id="alias_2" service="service_2" public="false"/>
   <definition id="definition_1" class="Full\Qualified\Class1" public="true" synthetic="false" lazy="true" shared="true" abstract="true" autowired="false" autoconfigured="false" file="">
     <factory class="Full\Qualified\FactoryClass" method="get"/>
     <argument type="service" id="definition2"/>
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.json b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.json
index 7f86ccb2ac429..3419083f572bd 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.json
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.json
@@ -19,10 +19,6 @@
         "alias_1": {
             "service": "service_1",
             "public": true
-        },
-        "alias_2": {
-            "service": "service_2",
-            "public": false
         }
     },
     "services": {
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.md b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.md
index aff2f08191d00..b8c62be4bcf23 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.md
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.md
@@ -26,11 +26,6 @@ Aliases
 - Service: `service_1`
 - Public: yes
 
-### alias_2
-
-- Service: `service_2`
-- Public: no
-
 
 Services
 --------
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.txt b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.txt
index 0e42596b99233..87f6b2125d764 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.txt
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.txt
@@ -6,7 +6,6 @@
   Service ID          Class name                                              
  ------------------- -------------------------------------------------------- 
   alias_1             alias for "service_1"                                   
-  alias_2             alias for "service_2"                                   
   definition_1        Full\Qualified\Class1                                   
   service_container   Symfony\Component\DependencyInjection\ContainerBuilder  
  ------------------- -------------------------------------------------------- 
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.xml b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.xml
index 22a7fb4224127..ac92a28ef6a4d 100644
--- a/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.xml
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Fixtures/Descriptor/builder_1_public.xml
@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <container>
   <alias id="alias_1" service="service_1" public="true"/>
-  <alias id="alias_2" service="service_2" public="false"/>
   <definition id="definition_1" class="Full\Qualified\Class1" public="true" synthetic="false" lazy="true" shared="true" abstract="true" autowired="false" autoconfigured="false" file="">
     <factory class="Full\Qualified\FactoryClass" method="get"/>
   </definition>
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/ContainerDebugCommandTest.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/ContainerDebugCommandTest.php
new file mode 100644
index 0000000000000..d19b08f739b82
--- /dev/null
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/ContainerDebugCommandTest.php
@@ -0,0 +1,66 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bundle\FrameworkBundle\Tests\Functional;
+
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+use Symfony\Component\Console\Tester\ApplicationTester;
+
+/**
+ * @group functional
+ */
+class ContainerDebugCommandTest extends WebTestCase
+{
+    public function testDumpContainerIfNotExists()
+    {
+        static::bootKernel(array('test_case' => 'ContainerDebug', 'root_config' => 'config.yml'));
+
+        $application = new Application(static::$kernel);
+        $application->setAutoExit(false);
+
+        @unlink(static::$kernel->getContainer()->getParameter('debug.container.dump'));
+
+        $tester = new ApplicationTester($application);
+        $tester->run(array('command' => 'debug:container'));
+
+        $this->assertFileExists(static::$kernel->getContainer()->getParameter('debug.container.dump'));
+    }
+
+    public function testNoDebug()
+    {
+        static::bootKernel(array('test_case' => 'ContainerDebug', 'root_config' => 'config.yml', 'debug' => false));
+
+        $application = new Application(static::$kernel);
+        $application->setAutoExit(false);
+
+        $tester = new ApplicationTester($application);
+        $tester->run(array('command' => 'debug:container'));
+
+        $this->assertContains('public', $tester->getDisplay());
+    }
+
+    public function testPrivateAlias()
+    {
+        static::bootKernel(array('test_case' => 'ContainerDebug', 'root_config' => 'config.yml'));
+
+        $application = new Application(static::$kernel);
+        $application->setAutoExit(false);
+
+        $tester = new ApplicationTester($application);
+        $tester->run(array('command' => 'debug:container', '--show-private' => true));
+        $this->assertContains('public', $tester->getDisplay());
+        $this->assertContains('private_alias', $tester->getDisplay());
+
+        $tester->run(array('command' => 'debug:container'));
+        $this->assertContains('public', $tester->getDisplay());
+        $this->assertNotContains('private_alias', $tester->getDisplay());
+    }
+}
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/app/ContainerDebug/bundles.php b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/app/ContainerDebug/bundles.php
new file mode 100644
index 0000000000000..a73987bcc986a
--- /dev/null
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/app/ContainerDebug/bundles.php
@@ -0,0 +1,18 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+use Symfony\Bundle\FrameworkBundle\Tests\Functional\Bundle\TestBundle\TestBundle;
+use Symfony\Bundle\FrameworkBundle\FrameworkBundle;
+
+return array(
+    new FrameworkBundle(),
+    new TestBundle(),
+);
diff --git a/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/app/ContainerDebug/config.yml b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/app/ContainerDebug/config.yml
new file mode 100644
index 0000000000000..f4a5425808440
--- /dev/null
+++ b/src/Symfony/Bundle/FrameworkBundle/Tests/Functional/app/ContainerDebug/config.yml
@@ -0,0 +1,9 @@
+imports:
+    - { resource: ../config/default.yml }
+
+services:
+    public:
+        class: Symfony\Bundle\FrameworkBundle\Tests\Fixtures\DeclaredClass
+    private_alias:
+        alias: public
+        public: false