DeploymentChecker: new Background Daemon component

fixes #2045
fixes #1988

application/controllers/ConfigController.php

@@ -52,8 +52,7 @@ class ConfigController extends ActionController
         $this->addTitle($this->translate('Deployments'));
         try {
             if (DirectorDeploymentLog::hasUncollected($this->db())) {
-                $this->setAutorefreshInterval(3);
+                $this->setAutorefreshInterval(2);
-                $this->api()->collectLogFiles($this->db());
             } else {
                 $this->setAutorefreshInterval(20);
             }

doc/82-Changelog.md

@@ -99,6 +99,7 @@ next (will be 1.8.0)
 * FIX: Daemon Logger used to not override the given log level (#2139)
 * FEATURE: Daemon: prepare for future reactphp promise versions (#2137)
 * FEATURE: Daemon now logs that it is going to reload itself
+* FEATURE: Now collects the Deployment status from Icinga (#2045, #1988)
 
 ### Documentation
 * FEATURE: We now also mention optional/indirect requirements (#2054, #2220)

library/Director/Daemon/BackgroundDaemon.php

@@ -87,6 +87,7 @@ class BackgroundDaemon
         $this->daemonDb
             ->register($this->jobRunner)
             ->register($this->logProxy)
+            ->register(new DeploymentChecker($this->loop))
             ->run($this->loop);
         $this->setState('running');
     }

library/Director/Daemon/DeploymentChecker.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace Icinga\Module\Director\Daemon;
+
+use Exception;
+use Icinga\Module\Director\Db;
+use Icinga\Module\Director\Objects\DirectorDeploymentLog;
+use React\EventLoop\LoopInterface;
+use function React\Promise\resolve;
+
+class DeploymentChecker implements DbBasedComponent
+{
+    /** @var Db */
+    protected $connection;
+
+    public function __construct(LoopInterface $loop)
+    {
+        $loop->addPeriodicTimer(5, function () {
+            if ($db = $this->connection) {
+                try {
+                    if (DirectorDeploymentLog::hasUncollected($db)) {
+                        $db->getDeploymentEndpoint()->api()->collectLogFiles($db);
+                    }
+                } catch (Exception $e) {
+                    // Ignore eventual issues while talking to Icinga
+                }
+            }
+        });
+    }
+
+    /**
+     * @param Db $connection
+     * @return \React\Promise\ExtendedPromiseInterface
+     */
+    public function initDb(Db $connection)
+    {
+        $this->connection = $connection;
+
+        return resolve();
+    }
+
+    /**
+     * @return \React\Promise\ExtendedPromiseInterface
+     */
+    public function stopDb()
+    {
+        $this->connection = null;
+
+        return resolve();
+    }
+}