Render variables in platform configuration files

ci/test/magento/etc/nginx/server.example.conf

@@ -1 +1,5 @@
+location /root {
+    root {{public_folder}};
+}
+
 location /example {}

ci/test/run-general.sh

@@ -151,6 +151,9 @@ $HN crontab -l -u app | grep "### BEGIN banaan1.store ###"
 $HN crontab -l -u app | grep "### END banaan1.store ###"
 $HN crontab -l -u app | sed -n -e '/### BEGIN banaan1.store ###/,/### END banaan1.store ###/ p' | grep "banaan"
 
+# Verify platform configs are templated correctly
+$HN grep "root /data/web/apps/banaan1.store/current/public;" /data/web/nginx/banaan1.store/server.example.conf || ($HN cat /data/web/nginx/banaan1.store/server.example.conf && exit 1)
+
 ######################################
 # REMOVE A NGINX LOCATION            #
 # Create a new release but make sure #

src/Deployer/Task/PlatformConfiguration/NginxRenderTask.php

@@ -0,0 +1,90 @@
+<?php
+
+namespace Hypernode\Deploy\Deployer\Task\PlatformConfiguration;
+
+use Deployer\Deployer;
+use Deployer\Task\Context;
+use Deployer\Task\Task;
+use Hypernode\Deploy\Deployer\Task\ConfigurableTaskInterface;
+use Hypernode\Deploy\Deployer\Task\IncrementedTaskTrait;
+use Hypernode\Deploy\Deployer\Task\TaskBase;
+use Hypernode\DeployConfiguration\PlatformConfiguration\NginxConfiguration;
+use Hypernode\DeployConfiguration\TaskConfigurationInterface;
+use RecursiveDirectoryIterator;
+use RecursiveIteratorIterator;
+use Twig\Environment;
+
+use function Deployer\fail;
+use function Deployer\get;
+use function Deployer\task;
+use function Deployer\writeln;
+
+class NginxRenderTask extends TaskBase implements ConfigurableTaskInterface
+{
+    use IncrementedTaskTrait;
+
+    /**
+     * @var Environment
+     */
+    private $twig;
+
+    public function __construct(Environment $twig)
+    {
+        $this->twig = $twig;
+    }
+
+    protected function getIncrementalNamePrefix(): string
+    {
+        return 'deploy:configuration:nginx:render:';
+    }
+
+    public function supports(TaskConfigurationInterface $config): bool
+    {
+        return $config instanceof NginxConfiguration;
+    }
+
+    private function getAllDeployerVars(): array
+    {
+        if (!Context::has()) {
+            return Deployer::get()->config->ownValues();
+        } else {
+            return Context::get()->getConfig()->ownValues();
+        }
+    }
+
+    /**
+     * Render variables in the given file
+     * @param string $file Template file to render
+     * @param array $variables Variables to render
+     * @return string Rendered file
+     */
+    private function render(string $file, array $variables): string
+    {
+        // Get all present Deployer variables
+        $template = $this->twig->load($file);
+        return $template->render($variables);
+    }
+
+    public function configureWithTaskConfig(TaskConfigurationInterface $config): ?Task
+    {
+        task('deploy:nginx:render', function () {
+            $variables = $this->getAllDeployerVars();
+            // Render every file in nginx/config_path using twig
+            $iterator = new RecursiveIteratorIterator(new RecursiveDirectoryIterator(get('nginx/config_path')));
+            foreach ($iterator as $nginx_file) {
+                if (!$nginx_file->isFile()) {
+                    continue;
+                }
+
+                $renderedContent = $this->render($nginx_file->getPathname(), $variables);
+                writeln('Rendered contents for ' . $nginx_file->getPathname() . ': ' . $renderedContent);
+
+                # Overwriting the template file shouldn't be a big deal right?
+                file_put_contents($nginx_file->getPathname(), $renderedContent);
+            }
+        });
+        fail('deploy:nginx:prepare', 'deploy:nginx:cleanup');
+
+        return null;
+    }
+}

src/Deployer/Task/PlatformConfiguration/NginxTask.php

@@ -38,6 +38,7 @@ public function configureWithTaskConfig(TaskConfigurationInterface $config): ?Ta
         task('deploy:nginx', [
             'deploy:nginx:prepare',
             'deploy:nginx:manage_vhost',
+            'deploy:nginx:render',
             'deploy:nginx:upload',
             'deploy:nginx:sync',
             'deploy:nginx:cleanup',