added Makefile for docker based build

.gitignore

@@ -14,6 +14,7 @@ Thumbs.db
 
 # composer vendor dir
 /vendor
+/composer.lock
 
 # composer itself is not needed
 composer.phar
@@ -27,4 +28,9 @@ phpunit.phar
 /phpunit.xml
 
 # local tests configuration
-/tests/data/config.local.php
+/tests/data/config.local.php
+
+/tests/runtime
+/tests/docker
+/tests/dockerids
+

Makefile

@@ -0,0 +1,26 @@
+
+# default versions to test against
+# these can be overridden by setting the environment variables in the shell
+PHP_VERSION=php-5.6.8
+YII_VERSION=dev-master
+
+# ensure all the configuration variables above are in environment of the shell commands below
+export
+
+help:
+	@echo "make test    - run phpunit tests using a docker environment"
+#	@echo "make clean   - stop docker and remove container"
+
+test: docker-php
+	composer require "yiisoft/yii2:${YII_VERSION}" --prefer-dist
+	composer install --prefer-dist
+	docker run --rm=true -v $(shell pwd):/opt/test yiitest/php:${PHP_VERSION} phpunit --verbose --color
+
+docker-php: dockerfiles
+	cd tests/docker/php && sh build.sh
+
+dockerfiles:
+	test -d tests/docker || git clone https://github.com/cebe/jenkins-test-docker tests/docker
+	cd tests/docker && git checkout -- . && git pull
+	mkdir -p tests/dockerids
+