add Dockerfile (braintree#12)

Author: omgrr

Dockerfile

@@ -0,0 +1,12 @@
+FROM php:5.6.25
+
+RUN apt-get update && apt-get install -y build-essential zip unzip
+
+ENV APP_HOME /braintree_php_example
+RUN mkdir $APP_HOME
+WORKDIR $APP_HOME
+
+ADD composer.* $APP_HOME/
+RUN php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');" && php composer-setup.php && php composer.phar install
+
+ADD . $APP_HOME

docker-compose.yml

@@ -0,0 +1,9 @@
+version: '2'
+services:
+  web:
+    build: .
+    command: php -S 0.0.0.0:4567 -t public_html
+    ports:
+      - "4567:4567"
+    volumes:
+      - .:/braintree_php_example