diff --git a/.env.docker b/.env.docker
index b68d138f1..8ceb675ff 100644
--- a/.env.docker
+++ b/.env.docker
@@ -30,10 +30,10 @@ APP_LOG_LEVEL=debug
 
 # MySQL Connection Details
 DB_CONNECTION="mysql"
-DB_HOST="127.0.0.1"
-DB_DATABASE="inex"
-DB_USERNAME="inex"
-DB_PASSWORD="inex"
+DB_HOST="ixpmanager-mysql"
+DB_DATABASE="ixpmanager"
+DB_USERNAME="ixpmanager"
+DB_PASSWORD="ixpmanager"
 #######################################################################################
 # Identity. Used throughout IXP Manager in various ways.
 # This has grown organically and we intend to clean this up in a coming release and
@@ -90,7 +90,7 @@ MAIL_PORT=1025
 ### Graphing - see https://ixp-manager.readthedocs.org/en/latest/features/grapher.html
 
 # For Docker MRTG testing, change this to: "mrtg|dummy".
-GRAPHER_BACKENDS="smokeping|mrtg|sflow|dummy"
+GRAPHER_BACKENDS="dummy"
 
 
 
diff --git a/app/Providers/GrapherServiceProvider.php b/app/Providers/GrapherServiceProvider.php
index 261d82353..b47a421e0 100644
--- a/app/Providers/GrapherServiceProvider.php
+++ b/app/Providers/GrapherServiceProvider.php
@@ -26,6 +26,7 @@
 use Illuminate\Support\ServiceProvider;
 
 use IXP\Exceptions\Services\Grapher\ConfigurationException;
+use IXP\Services\Grapher;
 use IXP\Services\Grapher\Renderer\Extensions\Grapher as GrapherRendererExtension;
 
 use Entities\User as UserEntity;
@@ -91,7 +92,7 @@ public function boot()
     /**
      * Register the application services.
      *
-     * @return void|\IXP\Services\Grapher
+     * @return void|Grapher
      * @throws
      */
     public function register()
@@ -105,7 +106,7 @@ public function register()
 
         $this->app->singleton(
             'IXP\Services\Grapher', function() {
-            return new \IXP\Services\Grapher;
+            return new Grapher;
         });
 
         $this->commands( $this->commands );
diff --git a/app/Services/Grapher/Backend/Dummy.php b/app/Services/Grapher/Backend/Dummy.php
index 407184cc9..d596a636b 100644
--- a/app/Services/Grapher/Backend/Dummy.php
+++ b/app/Services/Grapher/Backend/Dummy.php
@@ -32,7 +32,7 @@
 use Entities\IXP;
 
 /**
- * Grapher Backend -> Mrtg
+ * Grapher Backend -> Dummy
  *
  * @author     Barry O'Donovan <barry@islandbridgenetworks.ie>
  * @category   Grapher
@@ -194,7 +194,10 @@ public function data( Graph $graph ): array {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return string
+     *
+     * @throws
      */
     public function png( Graph $graph ): string {
         return @file_get_contents( $this->resolveFilePath( $graph, 'png' ) );
diff --git a/app/Services/Grapher/Backend/Mrtg.php b/app/Services/Grapher/Backend/Mrtg.php
index 99d13465d..9e27225fc 100644
--- a/app/Services/Grapher/Backend/Mrtg.php
+++ b/app/Services/Grapher/Backend/Mrtg.php
@@ -322,7 +322,9 @@ public static function supports(): array {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return array
+     *
      * @throws
      */
     public function data( Graph $graph ): array {
@@ -346,7 +348,9 @@ public function data( Graph $graph ): array {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return string
+     *
      * @throws
      */
     public function png( Graph $graph ): string {
@@ -375,7 +379,9 @@ public function png( Graph $graph ): string {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return string
+     *
      * @throws
      */
     public function rrd( Graph $graph ): string {
@@ -393,7 +399,9 @@ public function rrd( Graph $graph ): string {
 
     /**
      * For larger IXPs, allow sharding of directories over 16 possible base directories
+     *
      * @param int $id The customer entity id
+     *
      * @return string shared path -> e.g. 18 -> 18 % 16 = 2 / 00016 -> 2/00016
      */
     private function shardMemberDir( int $id ): string {
@@ -406,7 +414,9 @@ private function shardMemberDir( int $id ): string {
      *
      * @param Graph $graph
      * @param string $type
+     *
      * @return string
+     *
      * @throws
      */
     public function resolveFilePath( Graph $graph, string $type ): string {
@@ -470,7 +480,4 @@ public function resolveFilePath( Graph $graph, string $type ): string {
                 throw new CannotHandleRequestException("Backend asserted it could process but cannot handle graph of type: {$graph->type()}" );
         }
     }
-
-
-
 }
diff --git a/app/Services/Grapher/Backend/Sflow.php b/app/Services/Grapher/Backend/Sflow.php
index 101c188a2..bacc3bf9d 100644
--- a/app/Services/Grapher/Backend/Sflow.php
+++ b/app/Services/Grapher/Backend/Sflow.php
@@ -22,6 +22,7 @@
  */
 
 use IXP\Contracts\Grapher\Backend as GrapherBackendContract;
+use IXP\Exceptions\Services\Grapher\CannotHandleRequestException;
 use IXP\Services\Grapher\Backend as GrapherBackend;
 
 use IXP\Services\Grapher\Graph;
@@ -37,7 +38,7 @@
 use Log;
 
 /**
- * Grapher Backend -> Mrtg
+ * Grapher Backend -> Sflow
  *
  * @author     Barry O'Donovan <barry@islandbridgenetworks.ie>
  * @category   Grapher
@@ -92,7 +93,7 @@ public function isMultiFileConfigurationSupported(): bool {
      *
      * {inheritDoc}
      *
-     * @param int $config_type The type of configuration to generate
+     * @param int   $type       The type of configuration to generate
      * @return array
      */
     public function generateConfiguration( int $type = self::GENERATED_CONFIG_TYPE_MONOLITHIC ): array
@@ -140,7 +141,10 @@ public static function supports(): array {
      * {inheritDoc}
      *
      * @param \IXP\Services\Grapher\Graph $graph
+     *
      * @return array
+     *
+     * @throws
      */
     public function data( Graph $graph ): array {
         try {
@@ -158,7 +162,10 @@ public function data( Graph $graph ): array {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return string
+     *
+     * @throws
      */
     public function png( Graph $graph ): string {
         try {
@@ -176,7 +183,10 @@ public function png( Graph $graph ): string {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return string
+     *
+     * @throws
      */
     public function rrd( Graph $graph ): string {
         try {
@@ -206,26 +216,31 @@ private function translateCategory( $c ): string {
      * For a given graph, return the filename where the appropriate data
      * will be found.
      *
-     * @param Graph $graph
+     * @param Graph     $graph
+     * @param string    $type
+     *
      * @return string
+     *
+     * @throws
      */
     private function resolveFileName( Graph $graph, $type ): string {
-        $config = config('grapher.backends.sflow');
-
         switch( $graph->classType() ) {
             case 'Vlan':
+                /** @var Graph\Vlan $graph */
                 return sprintf( "aggregate.%s.%s.vlan%05d.%s",
                     $graph->protocol(), $this->translateCategory( $graph->category() ),
                     $graph->vlan()->getNumber(), $type );
                 break;
 
             case 'VlanInterface':
+                /** @var Graph\VlanInterface $graph */
                 return sprintf( "individual.%s.%s.src-%05d.%s",
                     $graph->protocol(), $this->translateCategory( $graph->category() ),
                     $graph->vlanInterface()->getId(), $type );
                 break;
 
             case 'P2p':
+                /** @var Graph\P2p $graph */
                 return sprintf( "p2p.%s.%s.src-%05d.dst-%05d.%s",
                     $graph->protocol(), $this->translateCategory( $graph->category() ),
                     $graph->svli()->getId(), $graph->dvli()->getId(), $type );
@@ -241,25 +256,31 @@ private function resolveFileName( Graph $graph, $type ): string {
      * will be found.
      *
      * @param Graph $graph
+     *
      * @return string
+     *
+     * @throws
      */
     private function resolveFilePath( Graph $graph, $type ): string {
         $config = config('grapher.backends.sflow');
 
         switch( $graph->classType() ) {
             case 'Vlan':
+                /** @var Graph\Vlan $graph */
                 return sprintf( "%s/%s/%s/aggregate/%s", $config['root'],
                     $graph->protocol(), $this->translateCategory( $graph->category() ),
                     $this->resolveFileName( $graph, $type ) );
                 break;
 
             case 'VlanInterface':
+                /** @var Graph\VlanInterface $graph */
                 return sprintf( "%s/%s/%s/individual/%s", $config['root'],
                     $graph->protocol(), $this->translateCategory( $graph->category() ),
                     $this->resolveFileName( $graph, $type ) );
                 break;
 
             case 'P2p':
+                /** @var Graph\P2p $graph */
                 return sprintf( "%s/%s/%s/p2p/src-%05d/%s", $config['root'],
                     $graph->protocol(), $this->translateCategory( $graph->category() ),
                     $graph->svli()->getId(), $this->resolveFileName( $graph, $type ) );
diff --git a/app/Services/Grapher/Backend/Smokeping.php b/app/Services/Grapher/Backend/Smokeping.php
index 061eb93db..570e7a779 100644
--- a/app/Services/Grapher/Backend/Smokeping.php
+++ b/app/Services/Grapher/Backend/Smokeping.php
@@ -137,7 +137,10 @@ public function data( Graph $graph ): array {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return string
+     *
+     * @throws
      */
     public function png( Graph $graph ): string {
         return @file_get_contents( $this->resolveFilePath( $graph ) );
@@ -149,6 +152,7 @@ public function png( Graph $graph ): string {
      * {inheritDoc}
      *
      * @param Graph $graph
+     *
      * @return string
      */
     public function rrd( Graph $graph ): string {
@@ -161,7 +165,9 @@ public function rrd( Graph $graph ): string {
      * will be found.
      *
      * @param Graph $graph
+     *
      * @return string
+     *
      * @throws
      */
     private function resolveFilePath( Graph $graph ): string {
diff --git a/app/Services/Grapher/Graph/Latency.php b/app/Services/Grapher/Graph/Latency.php
index 1486e5efc..ddf5ee657 100644
--- a/app/Services/Grapher/Graph/Latency.php
+++ b/app/Services/Grapher/Graph/Latency.php
@@ -85,7 +85,6 @@ class Latency extends Graph {
      */
     const PERIOD_DEFAULT  = self::PERIOD_3HOURS;
 
-
     /**
      * Array of valid periods for drill down graphs
      */
@@ -96,7 +95,6 @@ class Latency extends Graph {
         self::PERIOD_1YEAR      => "1year"
     ];
 
-
     /**
      * Default protocol for graphs
      */
@@ -146,7 +144,6 @@ public static function resolvePeriod( $period = null ): string {
         return self::PERIODS[ $period ] ?? 'Unknown';
     }
 
-
     /**
      * Get the vlan interface we're meant to graph for latency
      * @return VlanInterfaceEntity
@@ -232,14 +229,16 @@ public function getParamsAsArray(): array {
      *
      * Does a abort(404) if invalid
      *
-     * @param   int                     $vliid  The user input value
-     * @return  VlanInterfaceEntity     $vli    VlanInterface object
+     * @param   int     $vliid  The user input value
+     *
+     * @return  VlanInterfaceEntity
      */
     public static function processParameterVlanInterface( int $vliid ): VlanInterfaceEntity {
-        /** @var $vli VlanInterfaceEntity */
+        /** @var VlanInterfaceEntity $vli */
         if( !$vliid || !( $vli = D2EM::getRepository( VlanInterfaceEntity::class )->find( $vliid ) ) ) {
             abort(404);
         }
+
         return $vli;
     }
 }
diff --git a/library/IXP/Form/Switch.php b/library/IXP/Form/Switch.php
index 42ac6dc56..913fb24ee 100644
--- a/library/IXP/Form/Switch.php
+++ b/library/IXP/Form/Switch.php
@@ -153,7 +153,7 @@ public function init()
             ->setAttrib( 'class', 'span3' )
             ->addFilter( 'StringTrim' )
             ->addFilter( 'StringToLower' )
-            ->addFilter( new Zend_Filter_PregReplace( [ 'match' => '/[^0-9a-f]*/', 'reaplce' => '' ] ) );
+            ->addFilter( new Zend_Filter_PregReplace( [ 'match' => '/[^0-9a-f]*/', 'replace' => '' ] ) );
         $this->addElement( $mgmt_mac_address );