Strip the slash from image name

spec/Dock/Docker/Dns/DnsDockResolverSpec.php

@@ -27,4 +27,9 @@ function it_removes_the_tag_in_image_name()
     {
         $this->getDnsByContainerNameAndImage('container', 'image:latest')->shouldContain('container.image.docker');
     }
+
+    function it_removes_the_slash_in_image_name()
+    {
+        $this->getDnsByContainerNameAndImage('container', 'someone/image:latest')->shouldContain('container.someone_image.docker');
+    }
 }

src/Docker/Dns/DnsDockResolver.php

@@ -10,6 +10,7 @@ class DnsDockResolver implements ContainerAddressResolver
     public function getDnsByContainerNameAndImage($containerName, $imageName)
     {
         $imageName = $this->stripTagNameFromImageName($imageName);
+        $imageName = $this->stripSlashFromImageName($imageName);
 
         return [
             $imageName.'.docker',
@@ -30,4 +31,9 @@ private function stripTagNameFromImageName($imageName)
 
         return $imageName;
     }
+
+    private function stripSlashFromImageName($imageName)
+    {
+        return str_replace('/', '_', $imageName);
+    }
 }