diff --git a/roles/horizon/tasks/main.yml b/roles/horizon/tasks/main.yml
index 271c7fc..bbd1707 100644
--- a/roles/horizon/tasks/main.yml
+++ b/roles/horizon/tasks/main.yml
@@ -6,6 +6,7 @@
 - name: pull docker image
   docker_image:
     name: "{{ docker_image }}"
+    force: True
   tags: pull
 
 - name: install service file.
diff --git a/roles/keystone/tasks/main.yml b/roles/keystone/tasks/main.yml
index 0aa665c..c4bb04a 100644
--- a/roles/keystone/tasks/main.yml
+++ b/roles/keystone/tasks/main.yml
@@ -22,6 +22,7 @@
 - name: pull docker image
   docker_image:
     name: "{{ docker_image }}"
+    force: True
   tags: pull
 
 - name: install service file.
diff --git a/roles/neutron-controller/tasks/main.yml b/roles/neutron-controller/tasks/main.yml
index 09e4616..918299b 100644
--- a/roles/neutron-controller/tasks/main.yml
+++ b/roles/neutron-controller/tasks/main.yml
@@ -11,6 +11,7 @@
 - name: pull docker image
   docker_image:
     name: "{{ docker_image }}"
+    force: True
   tags: pull
 
 - set_fact:
@@ -23,6 +24,8 @@
         -e "MYSQL_ROOT_PASSWORD={{ secrets['MYSQL_ROOT_PASSWORD'] }}"
         -e "NEUTRON_PASSWORD={{ secrets['NEUTRON_PASSWORD'] }}"
         -e "NEUTRON_USER=neutron"
+        -e "NOVA_USER=nova"
+        -e "NOVA_PASSWORD={{ secrets['NOVA_PASSWORD'] }}"
         -e "NOVA_CONTROLLER_HOST={{ hostvars[groups['nova-controller'][0]]['ansible_default_ipv4']['address'] }}"
         -e "NOVA_PLACEMENT_PASSWORD={{ secrets['NOVA_PLACEMENT_PASSWORD'] }}"
         -e "NOVA_PLACEMENT_USER=placement"
diff --git a/roles/nova-compute/tasks/main.yml b/roles/nova-compute/tasks/main.yml
index ec132ea..ff0ee7c 100644
--- a/roles/nova-compute/tasks/main.yml
+++ b/roles/nova-compute/tasks/main.yml
@@ -12,6 +12,7 @@
 - name: pull docker image
   docker_image:
     name: "{{ docker_image }}"
+    force: True
   tags: pull
 
 - name: install service file.
diff --git a/roles/nova-controller/tasks/main.yml b/roles/nova-controller/tasks/main.yml
index e843de2..7a7a7ba 100644
--- a/roles/nova-controller/tasks/main.yml
+++ b/roles/nova-controller/tasks/main.yml
@@ -39,6 +39,7 @@
 - name: pull docker image
   docker_image:
     name: "{{ docker_image }}"
+    force: True
   tags: pull
 
 - name: install service file.