Changing version control for rancher

Changing the way of version control for rancher in accordance with
patchset #83634

Issue-ID: OOM-1767

Change-Id: I67f08dcf47f469c35da9a62ff435e187fae07724
Signed-off-by: Tomáš Levora <t.levora@partner.samsung.com>
diff --git a/ansible/roles/rancher/tasks/rancher_server.yml b/ansible/roles/rancher/tasks/rancher_server.yml
index ebee6cc..e1eb5a5 100644
--- a/ansible/roles/rancher/tasks/rancher_server.yml
+++ b/ansible/roles/rancher/tasks/rancher_server.yml
@@ -1,9 +1,9 @@
 ---
 # DO NOT ADD SPACE AROUND ';'
-- name: Start rancher/server:{{ rancher_server_version }}
+- name: Start rancher server container
   docker_container:
     name: rancher-server
-    image: rancher/server:{{ rancher_server_version }}
+    image: "{{ rancher_server_image }}"
     command: ["sh", "-c", "/usr/sbin/update-ca-certificates;/usr/bin/entry /usr/bin/s6-svscan /service"]
     ports: 8080:8080
     state: started