Merge pull request #47476 from gtmanfred/2017.7

Specify the cache directory for newer virtualenv modules

.kitchen.yml

@@ -1,5 +1,5 @@
 ---
-<% vagrant = system('which vagrant 2>/dev/null >/dev/null') %>
+<% vagrant = system('gem list -i kitchen-vagrant 2>/dev/null >/dev/null') %>
 <% version = '2017.7.4' %>
 <% platformsfile = ENV['SALT_KITCHEN_PLATFORMS'] || '.kitchen/platforms.yml' %>
 <% driverfile = ENV['SALT_KITCHEN_DRIVER'] || '.kitchen/driver.yml' %>

tests/integration/files/file/base/issue-1959-virtualenv-runas/init.sls

@@ -6,3 +6,5 @@
     {#- wheels are disabled because the pip cache dir will not be owned by the above issue-1959 user. Need to check this ASAP #}
     - no_binary: ':all:'
     {%- endif %}
+    - env:
+        XDG_CACHE_HOME: /tmp