diff --git a/openstack-compute/nodeimage.pkr.hcl b/openstack-compute/nodeimage.pkr.hcl
index 420f2c699efd34d83290d6214881b6d94a3bc16d..6874a5524ad86cf8713c3d7d2cbbf08f0bf83569 100644
--- a/openstack-compute/nodeimage.pkr.hcl
+++ b/openstack-compute/nodeimage.pkr.hcl
@@ -37,8 +37,8 @@ build {
 
   provisioner "ansible" {
     user = var.ssh_username
-    use_proxy =  false
     groups = ["compute"]
+    ansible_env_vars = ["ANSIBLE_HOST_KEY_CHECKING=False"]
     playbook_file = "./CRI_XCBC/compute-packer.yaml"
   }
 }
diff --git a/openstack-gpu/nodeimage.pkr.hcl b/openstack-gpu/nodeimage.pkr.hcl
index c64a709921b506f7b32def66803450c302f2aa30..20531b285790fcd3ff34ec6008d5cb510e118499 100644
--- a/openstack-gpu/nodeimage.pkr.hcl
+++ b/openstack-gpu/nodeimage.pkr.hcl
@@ -38,8 +38,8 @@ build {
 
   provisioner "ansible" {
     user = var.ssh_username
-    use_proxy =  false
     groups = ["compute"]
+    ansible_env_vars = ["ANSIBLE_HOST_KEY_CHECKING=False"]
     playbook_file = "./CRI_XCBC/compute-packer.yaml"
   }
 }
diff --git a/openstack/nodeimage.pkr.hcl b/openstack/nodeimage.pkr.hcl
index 301998ee7b6a3c0ddcf5b449119f2f9cd268f475..cd94849a74d9c0a127edb994c347e8154a665641 100644
--- a/openstack/nodeimage.pkr.hcl
+++ b/openstack/nodeimage.pkr.hcl
@@ -37,8 +37,8 @@ build {
 
   provisioner "ansible" {
     user = var.ssh_username
-    use_proxy =  false
     groups = ["base"]
+    ansible_env_vars = ["ANSIBLE_HOST_KEY_CHECKING=False"]
     playbook_file = "./CRI_XCBC/compute-packer.yaml"
   }
 }