Update Gemfile and Makefile configuration
  - One Gemfile for all formulas tests
  - Update Makefile for OpenStack tests

Fixes: PROD-24408 (PROD:24408)
Change-Id: I1dc9b91c472e91348da0f7e1a280cf2796decf00
diff --git a/.travis.yml b/.travis.yml
index 18e835c..fa16939 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,15 +9,9 @@
   - pip install PyYAML
   - pip install virtualenv
   - |
-    test -e Gemfile || cat <<EOF > Gemfile
-    source 'https://rubygems.org'
-    gem 'rake'
-    gem 'test-kitchen'
-    gem 'kitchen-docker'
-    gem 'kitchen-inspec'
-    gem 'inspec', '<3.0.0'
-    #Version was frozen, because of issues in the version of inspec >3.0.0 -- see https://mirantis.jira.com/browse/PROD-24324 for more info
-    gem 'kitchen-salt', :git => 'https://github.com/salt-formulas/kitchen-salt.git'
+    if [ ! -e Gemfile ]; then
+      curl -s -o ./Gemfile https://raw.githubusercontent.com/salt-formulas/salt-formulas-scripts/master/Gemfile
+    fi
   - bundle install
 
 env:
diff --git a/Makefile b/Makefile
index d166862..fb69046 100644
--- a/Makefile
+++ b/Makefile
@@ -18,7 +18,11 @@
 JOBS := 1
 endif
 
+ifeq (,$(wildcard ./.kitchen.openstack.yml))
+KITCHEN_LOCAL_YAML?=.kitchen.openstack.yml
+else
 KITCHEN_LOCAL_YAML?=.kitchen.yml
+endif
 KITCHEN_OPTS?="--concurrency=$(JOBS)"
 KITCHEN_OPTS_CREATE?=""
 KITCHEN_OPTS_CONVERGE?=""