Switch to newest test docker image

Make sure kitchen test dependencies formulas are always fetched from correct branch

Related: PROD-29821
Related: PROD-29251
Fixes: PROD-29819
Enables: https://gerrit.mcp.mirantis.com/#/c/39637/

(cherry picked from commit 55e4d4ba463f327bbc79b16357e6bfbe51c4fe47)
(cherry picked from commit dcc2a880c9045c890463cc606d0b948addd6b52f)
(cherry picked from commit 928bd870114815288b8fed1bf3d80944e2cd86c3)

Change-Id: Ic06787f931ecc295a8817e29ae0a1f194a882b26
diff --git a/.kitchen.yml b/.kitchen.yml
index 264da98..ece2c75 100644
--- a/.kitchen.yml
+++ b/.kitchen.yml
@@ -37,15 +37,15 @@
     - name: linux
       repo: git
       source: https://gerrit.mcp.mirantis.com/salt-formulas/linux.git
+      branch: <%=ENV['GERRIT_BRANCH'] || 'master' %>
 
 verifier:
   name: inspec
   sudo: true
 
 docker_images:
-  - &xenial-20163 <%=ENV['IMAGE_XENIAL_20163'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-2016.3/salt:2018_11_19'%>
-  - &xenial-20177 <%=ENV['IMAGE_XENIAL_20177'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-2017.7/salt:2018_11_19'%>
-  - &xenial-stable <%=ENV['IMAGE_XENIAL_STABLE'] || 'docker-dev-local.docker.mirantis.net/epcim/salt/saltstack-ubuntu-xenial-salt-stable/salt:2018_11_19'%>
+  - &xenial-20177 <%=ENV['IMAGE_XENIAL_20177'] || 'docker-dev-local.docker.mirantis.net/mirantis/drivetrain/salt-formulas-ci/salt-formulas-ci-xenial-2017.7:latest'%>
+  - &xenial-20183 <%=ENV['IMAGE_XENIAL_20183'] || 'docker-dev-local.docker.mirantis.net/mirantis/drivetrain/salt-formulas-ci/salt-formulas-ci-xenial-2018.3:latest'%>
 
 platforms:
   - name: xenial-2017.7
@@ -53,9 +53,9 @@
       image: *xenial-20177
       platform: ubuntu
 
-  - name: xenial-stable
+  - name: xenial-2018.3
     driver_config:
-      image: *xenial-stable
+      image: *xenial-20183
       platform: ubuntu
 
 suites: