diff --git a/.zuul.yaml b/.zuul.yaml
new file mode 100644
index 0000000..f4bf8dc
--- /dev/null
+++ b/.zuul.yaml
@@ -0,0 +1,10 @@
+---
+- project:
+    default-branch: main
+    merge-mode: squash-merge
+    check:
+      jobs:
+        - tox-linters
+    gate:
+      jobs:
+        - tox-linters
diff --git a/all/001-kolla-defaults.yml b/all/001-kolla-defaults.yml
index 3cb4f8a..74907c3 100644
--- a/all/001-kolla-defaults.yml
+++ b/all/001-kolla-defaults.yml
@@ -755,12 +755,12 @@ enable_destroy_images: "no"
 ####################
 # Monasca options
 ####################
-monasca_enable_alerting_pipeline: True
+monasca_enable_alerting_pipeline: true
 
 # Send logs from the control plane to the Monasca API. Monasca will then persist
 # them in Elasticsearch. If this is disabled, control plane logs will be sent
 # directly to Elasticsearch.
-monasca_ingest_control_plane_logs: True
+monasca_ingest_control_plane_logs: true
 
 monasca_api_admin_base_endpoint: "{{ admin_protocol }}://{{ kolla_internal_fqdn  | put_address_in_context('url') }}:{{ monasca_api_port }}"
 monasca_api_internal_base_endpoint: "{{ internal_protocol }}://{{ kolla_internal_fqdn  | put_address_in_context('url') }}:{{ monasca_api_port }}"
@@ -1052,7 +1052,7 @@ murano_agent_rabbitmq_user: "muranoagent"
 # Horizon options
 #######################
 horizon_backend_database: "{{ enable_murano | bool }}"
-horizon_keystone_multidomain: False
+horizon_keystone_multidomain: false
 
 # Enable deploying custom horizon policy files for services that don't have a
 # horizon plugin but have a policy file. Override these when you have services
@@ -1221,7 +1221,7 @@ swift_public_endpoint: "{{ public_protocol }}://{{ swift_external_fqdn | put_add
 # Whether to run Kolla-Ansible's automatic configuration for Octavia.
 # NOTE: if you upgrade from Ussuri, you must set `octavia_auto_configure` to `no`
 # and keep your other Octavia config like before.
-octavia_auto_configure: yes
+octavia_auto_configure: "yes"
 
 # Octavia network type options are [ tenant, provider ]
 # * tenant indicates that we will create a tenant network and a network
diff --git a/all/002-images-kolla.yml b/all/002-images-kolla.yml
index f40d7a8..fc302b0 100644
--- a/all/002-images-kolla.yml
+++ b/all/002-images-kolla.yml
@@ -289,7 +289,7 @@ rabbitmq_tag: "{{ kolla_rabbitmq_version|default(kolla_image_version) }}"
 # role: nova-cell
 
 nova_libvirt_image: "{{ docker_registry }}/{{ docker_namespace }}/nova-libvirt"
-nova_libvirt_tag: {{ kolla_nova_libvirt_version|default(kolla_image_version) }}"
+nova_libvirt_tag: "{{ kolla_nova_libvirt_version|default(kolla_image_version) }}"
 nova_ssh_image: "{{ docker_registry }}/{{ docker_namespace }}/nova-ssh"
 nova_ssh_tag: "{{ nova_tag }}"
 nova_novncproxy_image: "{{ docker_registry }}/{{ docker_namespace }}/nova-novncproxy"
diff --git a/tox.ini b/tox.ini
new file mode 100644
index 0000000..c63410f
--- /dev/null
+++ b/tox.ini
@@ -0,0 +1,13 @@
+[tox]
+minversion = 3.18.0
+skipsdist = True
+
+[testenv]
+usedevelop = False
+basepython = python3
+
+[testenv:linters]
+deps =
+    yamllint
+commands =
+  yamllint -s .