diff --git a/tcp_tests/templates/cookied-mcp-mitaka-ovs/salt.yaml b/tcp_tests/templates/cookied-mcp-mitaka-ovs/salt.yaml
index 3f7684c..f9b6cf7 100644
--- a/tcp_tests/templates/cookied-mcp-mitaka-ovs/salt.yaml
+++ b/tcp_tests/templates/cookied-mcp-mitaka-ovs/salt.yaml
@@ -7,6 +7,8 @@
 
 {% set SALT_MODELS_REPOSITORY = os_env('SALT_MODELS_REPOSITORY','https://gerrit.mcp.mirantis.net/salt-models/mcp-virtual-lab') %}
 # Other salt model repository parameters see in shared-salt.yaml
+{% set OVERRIDES = os_env('OVERRIDES', 'override_example: true') %}
+{% set OVERRIDES_FILENAME = os_env('OVERRIDES_FILENAME', '/srv/salt/reclass/classes/environment/cookied-mcp-mitaka-ovs/overrides.yml') %}
 
 {% import 'shared-salt.yaml' as SHARED with context %}
 
@@ -20,6 +22,24 @@
 
 {{ SHARED.MACRO_RUN_SALT_MASTER_UNDERLAY_STATES() }}
 
+{%- if OVERRIDES != '' %}
+{%- for param in OVERRIDES.splitlines() %}
+{%- set key, value = param.replace(' ','').split(':') %}
+- description: Override cluster parameters
+  cmd: |
+    salt-call reclass.cluster_meta_set name='{{ key }}' value='{{ value }}' file_name='{{OVERRIDES_FILENAME}}'
+  node_name: {{ HOSTNAME_CFG01 }}
+  retry: {count: 1, delay: 1}
+  skip_fail: false
+{%- endfor %}
+
+- description: Refresh pillar
+  cmd: salt '*' saltutil.refresh_pillar
+  node_name: {{ HOSTNAME_CFG01 }}
+  retry: {count: 1, delay: 1}
+  skip_fail: false
+{%- endif %}
+
 {{ SHARED.MACRO_GENERATE_INVENTORY() }}
 
 {{ SHARED.MACRO_NETWORKING_WORKAROUNDS() }}