Parameterize all global configuration parameters

  - Keeps full backwards compatibility
  - Includes fixes from https://gerrit.mcp.mirantis.com/#/c/40867/

Related: PROD-29206
Fixes: PROD-29088

Change-Id: I3d71c265e7975060d9804288b341775acccdf9da
(cherry picked from commit eef51a15f7018aee0d46271fee3cff7ee0408e25)
(cherry picked from commit 6d337fa48ac0aaa4ac190d44d3591b95ee1209d1)
diff --git a/.kitchen.yml b/.kitchen.yml
index 2e0cae8..e66639c 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -77,4 +77,9 @@
     provisioner:
       pillars-from-files:
         haproxy.sls: tests/pillar/single_rate_limiting.sls
+
+  - name: single_global_parameters
+    provisioner:
+      pillars-from-files:
+        haproxy.sls: tests/pillar/single_global_parameters.sls
 # vim: ft=yaml sw=2 ts=2 sts=2 tw=125