add ability to change servers docker image

app/Http/Controllers/Admin/ServersController.php

@@ -83,6 +83,7 @@ class ServersController extends Controller
             'locations.long as a_locationName',
             'services.name as a_serviceName',
             DB::raw('IFNULL(service_options.executable, services.executable) as a_serviceExecutable'),
+            'service_options.docker_image',
             'service_options.name as a_servceOptionName',
             'allocations.ip',
             'allocations.port',
@@ -248,10 +249,6 @@ class ServersController extends Controller
             ]);
 
             Alert::success('Server details were successfully updated.')->flash();
-            return redirect()->route('admin.servers.view', [
-                'id' => $id,
-                'tab' => 'tab_details'
-            ]);
         } catch (DisplayValidationException $ex) {
             return redirect()->route('admin.servers.view', [
                 'id' => $id,
@@ -259,19 +256,40 @@ class ServersController extends Controller
             ])->withErrors(json_decode($ex->getMessage()))->withInput();
         } catch (DisplayException $ex) {
             Alert::danger($ex->getMessage())->flash();
-            return redirect()->route('admin.servers.view', [
-                'id' => $id,
-                'tab' => 'tab_details'
-            ])->withInput();
         } catch (\Exception $ex) {
             Log::error($ex);
-            Alert::danger('An unhandled exception occured while attemping to add this server. Please try again.')->flash();
+            Alert::danger('An unhandled exception occured while attemping to update this server. Please try again.')->flash();
+        }
+
         return redirect()->route('admin.servers.view', [
             'id' => $id,
             'tab' => 'tab_details'
         ])->withInput();
     }
 
+    public function postUpdateContainerDetails(Request $request, $id) {
+        try {
+            $server = new ServerRepository;
+            $server->updateContainer($id, [
+                'image' => $request->input('docker_image')
+            ]);
+            Alert::success('Successfully updated this server\'s docker image.')->flash();
+        } catch (DisplayValidationException $ex) {
+            return redirect()->route('admin.servers.view', [
+                'id' => $id,
+                'tab' => 'tab_details'
+            ])->withErrors(json_decode($ex->getMessage()))->withInput();
+        } catch (DisplayException $ex) {
+            Alert::danger($ex->getMessage())->flash();
+        } catch (\Exception $ex) {
+            Log::error($ex);
+            Alert::danger('An unhandled exception occured while attemping to update this server\'s docker image. Please try again.')->flash();
+        }
+
+        return redirect()->route('admin.servers.view', [
+            'id' => $id,
+            'tab' => 'tab_details'
+        ]);
     }
 
     public function postUpdateServerToggleBuild(Request $request, $id) {

app/Http/Routes/AdminRoutes.php

@@ -163,6 +163,12 @@ class AdminRoutes {
                 'uses' => 'Admin\ServersController@postUpdateServerDetails'
             ]);
 
+            // Change Server Details
+            $router->post('/view/{id}/container', [
+                'as' => 'admin.servers.post.container',
+                'uses' => 'Admin\ServersController@postUpdateContainerDetails'
+            ]);
+
             // Change Server Details
             $router->post('/view/{id}/startup', [
                 'as' => 'admin.servers.post.startup',

app/Repositories/ServerRepository.php

@@ -387,6 +387,58 @@ class ServerRepository
 
     }
 
+    /**
+     * [updateContainer description]
+     * @param  int      $id
+     * @param  array    $data
+     * @return bool
+     */
+    public function updateContainer($id, array $data)
+    {
+        $validator = Validator::make($data, [
+            'image' => 'required|string'
+        ]);
+
+        // Run validator, throw catchable and displayable exception if it fails.
+        // Exception includes a JSON result of failed validation rules.
+        if ($validator->fails()) {
+            throw new DisplayValidationException($validator->errors());
+        }
+
+        DB::beginTransaction();
+        try {
+            $server = Models\Server::findOrFail($id);
+
+            $server->image = $data['image'];
+            $server->save();
+
+            $node = Models\Node::getByID($server->node);
+            $client = Models\Node::guzzleRequest($server->node);
+
+            $client->request('PATCH', '/server', [
+                'headers' => [
+                    'X-Access-Server' => $server->uuid,
+                    'X-Access-Token' => $node->daemonSecret
+                ],
+                'json' => [
+                    'build' => [
+                        'image' => $server->image
+                    ]
+                ]
+            ]);
+
+            DB::commit();
+            return true;
+        } catch (\GuzzleHttp\Exception\TransferException $ex) {
+            DB::rollBack();
+            throw new DisplayException('An error occured while attempting to update the container image.', $ex);
+        } catch (\Exception $ex) {
+            DB::rollBack();
+            throw $ex;
+        }
+
+    }
+
     /**
      * [changeBuild description]
      * @param  integer  $id

database/migrations/2016_09_17_194246_add_docker_image_column.php

@@ -0,0 +1,45 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+use Pterodactyl\Models\Server;
+
+class AddDockerImageColumn extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('servers', function (Blueprint $table) {
+            $table->string('image')->after('daemonSecret');
+        });
+
+        // Populate the column
+        $servers = Server::select(
+            'servers.id',
+            'service_options.docker_image as s_optionImage'
+        )->join('service_options', 'service_options.id', '=', 'servers.option')->get();
+
+        foreach ($servers as $server) {
+            $server->image = $server->s_optionImage;
+            $server->save();
+        }
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('servers', function (Blueprint $table) {
+            $table->dropColumn('image');
+        });
+    }
+}

resources/views/admin/servers/view.blade.php

@@ -174,6 +174,31 @@
                             </div>
                         </form>
                     </div>
+                    <div class="panel-heading" style="border-top: 1px solid #ddd;"></div>
+                    <div class="panel-body">
+                        <form action="{{ route('admin.servers.post.container', $server->id) }}" method="POST">
+                            <div class="row">
+                                <div class="col-md-6">
+                                    <div class="form-group">
+                                        <label for="name" class="control-label">Docker Container Image</label>
+                                        <div>
+                                            <input type="text" name="docker_image" value="{{ $server->image }}" class="form-control" />
+                                            <p class="text-muted"><small>The docker image to use for this server. The default image for this service and option combination is <code>{{ $server->docker_image }}</code>.</small></p>
+                                        </div>
+                                    </div>
+                                </div>
+                                <div class="col-md-6 text-center">
+                                    <div class="form-group">
+                                        <label for="name" class="control-label">&nbsp;</label>
+                                        <div>
+                                            {!! csrf_field() !!}
+                                            <input type="submit" class="btn btn-sm btn-primary" value="Update Docker Image" />
+                                        </div>
+                                    </div>
+                                </div>
+                            </div>
+                        </form>
+                    </div>
                 </div>
             </div>
             <div class="tab-pane" id="tab_build">