diff --git a/README.md b/README.md
index 529b50b0741..9927655fe66 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # kubernetes
 Kubernetes playground
+
+# just test for tidb serverless branches
diff --git a/vagrant-provisioning/Vagrantfile b/vagrant-provisioning/Vagrantfile
index 66ab98982e1..afa3f97a2cf 100644
--- a/vagrant-provisioning/Vagrantfile
+++ b/vagrant-provisioning/Vagrantfile
@@ -4,11 +4,11 @@
 ENV['VAGRANT_NO_PARALLEL'] = 'yes'
 
 VAGRANT_BOX         = "generic/ubuntu2204"
-VAGRANT_BOX_VERSION = "4.2.10"
+VAGRANT_BOX_VERSION = "4.2.16"
 CPUS_MASTER_NODE    = 2
 CPUS_WORKER_NODE    = 1
-MEMORY_MASTER_NODE  = 2048
-MEMORY_WORKER_NODE  = 1024
+MEMORY_MASTER_NODE  = 4096
+MEMORY_WORKER_NODE  = 2048
 WORKER_NODES_COUNT  = 2
 
 
diff --git a/vagrant-provisioning/bootstrap.sh b/vagrant-provisioning/bootstrap.sh
index 671071f5651..3704e7ec60c 100644
--- a/vagrant-provisioning/bootstrap.sh
+++ b/vagrant-provisioning/bootstrap.sh
@@ -49,7 +49,7 @@ curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | apt-key add - >/
 apt-add-repository "deb http://apt.kubernetes.io/ kubernetes-xenial main" >/dev/null 2>&1
 
 echo "[TASK 7] Install Kubernetes components (kubeadm, kubelet and kubectl)"
-apt install -qq -y kubeadm=1.26.0-00 kubelet=1.26.0-00 kubectl=1.26.0-00 >/dev/null 2>&1
+apt install -qq -y kubeadm=1.28.0-00 kubelet=1.28.0-00 kubectl=1.28.0-00 >/dev/null 2>&1
 
 echo "[TASK 8] Enable ssh password authentication"
 sed -i 's/^PasswordAuthentication .*/PasswordAuthentication yes/' /etc/ssh/sshd_config
@@ -66,3 +66,5 @@ cat >>/etc/hosts<<EOF
 172.16.16.101   kworker1.example.com    kworker1
 172.16.16.102   kworker2.example.com    kworker2
 EOF
+
+#eof
diff --git a/vagrant-provisioning/bootstrap_kmaster.sh b/vagrant-provisioning/bootstrap_kmaster.sh
index f74c42a98d5..2e3e0f4316f 100644
--- a/vagrant-provisioning/bootstrap_kmaster.sh
+++ b/vagrant-provisioning/bootstrap_kmaster.sh
@@ -7,7 +7,9 @@ echo "[TASK 2] Initialize Kubernetes Cluster"
 kubeadm init --apiserver-advertise-address=172.16.16.100 --pod-network-cidr=192.168.0.0/16 >> /root/kubeinit.log 2>/dev/null
 
 echo "[TASK 3] Deploy Calico network"
-kubectl --kubeconfig=/etc/kubernetes/admin.conf create -f https://docs.projectcalico.org/v3.18/manifests/calico.yaml >/dev/null 2>&1
+kubectl --kubeconfig=/etc/kubernetes/admin.conf create -f https://docs.projectcalico.org/v3.25/manifests/calico.yaml >/dev/null 2>&1
 
 echo "[TASK 4] Generate and save cluster join command to /joincluster.sh"
 kubeadm token create --print-join-command > /joincluster.sh 2>/dev/null
+
+#eof
diff --git a/vagrant-provisioning/bootstrap_kworker.sh b/vagrant-provisioning/bootstrap_kworker.sh
index a32640c7a0f..de82671af7f 100644
--- a/vagrant-provisioning/bootstrap_kworker.sh
+++ b/vagrant-provisioning/bootstrap_kworker.sh
@@ -4,3 +4,5 @@ echo "[TASK 1] Join node to Kubernetes Cluster"
 apt install -qq -y sshpass >/dev/null 2>&1
 sshpass -p "kubeadmin" scp -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no kmaster.example.com:/joincluster.sh /joincluster.sh 2>/dev/null
 bash /joincluster.sh >/dev/null 2>&1
+
+#eof