Recompile the container upon container start

Dockerfile

@@ -28,7 +28,6 @@ RUN set -xe \
     && gulp --env production \
     && bin/console assets:install \
     && mv web/ public/ \
-    && bin/console cache:clear --no-warmup \
     && rm -rf .babelrc \
         bower_components/ \
         bower.json \
@@ -37,7 +36,6 @@ RUN set -xe \
         node_modules/ \
         npm-shrinkwrap.json \
         package.json \
-        var/cache/* \
         var/logs/* \
     && touch var/logs/${SYMFONY_ENV}.log \
     && mkdir -p var/sessions/ var/uploads/ \

app/AppKernel.php

@@ -1,5 +1,6 @@
 <?php
 
+use Symfony\Component\Config\ConfigCache;
 use Symfony\Component\HttpKernel\Kernel;
 use Symfony\Component\Config\Loader\LoaderInterface;
 
@@ -68,4 +69,27 @@ public function registerContainerConfiguration(LoaderInterface $loader)
             $container->getParameterBag()->add($this->getEnvParameters());
         });
     }
+
+    /**
+     * Recompiles the container without warming up the whole cache.
+     *
+     * Can be called upon docker container start to inject custom parameters.
+     */
+    public function compile()
+    {
+        // Load class cache
+        if ($this->loadClassCache) {
+            $this->doLoadClassCache($this->loadClassCache[0], $this->loadClassCache[1]);
+        }
+
+        // Initialize bundles to be able to parse configurations
+        $this->initializeBundles();
+
+        $class = $this->getContainerClass();
+        $cache = new ConfigCache($this->getCacheDir().'/'.$class.'.php', $this->debug);
+
+        $container = $this->buildContainer();
+        $container->compile();
+        $this->dumpContainer($cache, $container, $class, $this->getContainerBaseClass());
+    }
 }

bin/compile

@@ -0,0 +1,29 @@
+#!/usr/bin/env php
+<?php
+
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+use Symfony\Component\Console\Input\ArgvInput;
+use Symfony\Component\Debug\Debug;
+
+// if you don't want to setup permissions the proper way, just uncomment the following PHP line
+// read http://symfony.com/doc/current/book/installation.html#configuration-and-setup for more information
+//umask(0000);
+
+set_time_limit(0);
+
+/**
+ * @var Composer\Autoload\ClassLoader $loader
+ */
+$loader = require __DIR__.'/../app/autoload.php';
+
+$input = new ArgvInput();
+$env = $input->getParameterOption(['--env', '-e'], getenv('SYMFONY_ENV') ?: 'dev');
+$debug = getenv('SYMFONY_DEBUG') !== '0' && !$input->hasParameterOption(['--no-debug', '']) && $env !== 'prod';
+
+if ($debug) {
+    Debug::enable();
+}
+
+$kernel = new AppKernel($env, $debug);
+
+$kernel->compile();

etc/docker/prod/app/entrypoint.sh

@@ -2,7 +2,7 @@
 
 set -e
 
-bin/console cache:clear
+bin/compile
 chown -R www-data. var/cache/
 cp -r public/* web/