diff --git a/inventory/gpu_k8s_cluster b/inventory/gpu_k8s_cluster
index 829d7ca..922dfe4 100644
--- a/inventory/gpu_k8s_cluster
+++ b/inventory/gpu_k8s_cluster
@@ -1,8 +1,7 @@
 [all]
-ops-1               ansible_host=127.0.0.1   ansible_ssh_user=shenlan
-k8s-1               ansible_host=3.115.13.153
-k8s-2               ansible_host=35.78.97.10
-k8s-3               ansible_host=35.77.230.131
+k8s-1               ansible_host=43.207.228.137
+k8s-2               ansible_host=57.182.251.106
+k8s-3               ansible_host=18.179.59.49
 
 [all:vars]
 ansible_port=22
diff --git a/playbooks/demo_gpu_k8s.yml b/playbooks/demo_gpu_k8s.yml
index 0868cb2..5931a10 100644
--- a/playbooks/demo_gpu_k8s.yml
+++ b/playbooks/demo_gpu_k8s.yml
@@ -3,7 +3,7 @@
   vars:
     # Use the inventory hostname for delegation so Ansible
     # applies the correct connection variables
-    ops_host: "ops-1"
+    ops_host: "k8s-1"
     masters:
       - "k8s-1"
     nodes:
diff --git a/playbooks/roles/vhosts/gpu-k8s/tasks/install_cluster.yml b/playbooks/roles/vhosts/gpu-k8s/tasks/install_cluster.yml
index 09d4096..9585a41 100644
--- a/playbooks/roles/vhosts/gpu-k8s/tasks/install_cluster.yml
+++ b/playbooks/roles/vhosts/gpu-k8s/tasks/install_cluster.yml
@@ -96,7 +96,7 @@
       --masters {{ master_ips | join(',') }} \
       --nodes {{ node_ips | join(',') }} \
       --user {{ ssh_user }} \
-      --pk {{ ssh_private_key }} \
+      --pk /home/{{ ansible_user }}/.ssh/id_rsa \
       --env '{{ sealos_cmd_env }}' \
       --cmd "{{ kubeadm_init_cmd }}"
   args: