Add top command to list process inside a container

joelwurtz · joelwurtz · commit 6dee1830804a · 2014-11-28T14:29:05.000+01:00
diff --git a/src/Docker/Manager/ContainerManager.php b/src/Docker/Manager/ContainerManager.php
@@ -367,4 +367,37 @@ public function remove(Container $container, $volumes = false)
 
         return $this;
     }
+
+    /**
+     * List process running inside a container
+     *
+     * @param Container $container
+     * @param string    $psArgs
+     *
+     * @throws \Docker\Exception\UnexpectedStatusCodeException
+     *
+     * @return array
+     */
+    public function top(Container $container, $psArgs = "aux")
+    {
+        $response = $this->client->get(['/containers/{id}/top?ps_args={ps_args}', [
+            'id' => $container->getId(),
+            'ps_args' => $psArgs
+        ]]);
+
+        if ($response->getStatusCode() !== "200") {
+            throw UnexpectedStatusCodeException::fromResponse($response);
+        }
+
+        $processes = array();
+        $data      = $response->json();
+
+        $keys = $data['Titles'];
+
+        foreach ($data['Processes'] as $values) {
+            $processes[] = array_combine($keys, $values);
+        }
+
+        return $processes;
+    }
 }
diff --git a/src/Docker/Tests/Manager/ContainerManagerTest.php b/src/Docker/Tests/Manager/ContainerManagerTest.php
@@ -351,4 +351,20 @@ public function testRemove()
         $this->setExpectedException('\\Docker\\Exception\\ContainerNotFoundException', 'Container not found');
         $manager->inspect($container);
     }
+
+    public function testTop()
+    {
+        $container = new Container(['Image' => 'ubuntu:precise', 'Cmd' => ['sleep', '2']]);
+        $manager = $this->getManager();
+        $manager->run($container, null, array(), true);
+
+        $processes = $manager->top($container);
+
+        $this->assertCount(1, $processes);
+        $this->assertArrayHasKey('COMMAND', $processes[0]);
+        $this->assertEquals('sleep 2', $processes[0]['COMMAND']);
+
+        $manager->wait($container);
+        $manager->remove($container);
+    }
 }
