diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-force.golden b/pkg/scripts/testdata/TestKubeadmCentOS-force.golden
index fd9207646..f93c5b0c9 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-force.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-force.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-nutanix_cluster.golden b/pkg/scripts/testdata/TestKubeadmCentOS-nutanix_cluster.golden
index 730a94d86..acebdb94c 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-nutanix_cluster.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-nutanix_cluster.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry.golden b/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry.golden
index 80894e813..c70303bc3 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry_insecure.golden b/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry_insecure.golden
index 76abc4f65..63ed3c181 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry_insecure.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-overwrite_registry_insecure.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-proxy.golden b/pkg/scripts/testdata/TestKubeadmCentOS-proxy.golden
index b67c6fd3c..078e66aee 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-proxy.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-proxy.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-simple.golden b/pkg/scripts/testdata/TestKubeadmCentOS-simple.golden
index 80894e813..c70303bc3 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-simple.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-simple.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-v1.16.1.golden b/pkg/scripts/testdata/TestKubeadmCentOS-v1.16.1.golden
index 16f346523..cf1316616 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-v1.16.1.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-v1.16.1.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd.golden b/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd.golden
index c6429166f..072c16c2d 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd_with_insecure_registry.golden b/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd_with_insecure_registry.golden
index 25b930ed3..761b39c37 100644
--- a/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd_with_insecure_registry.golden
+++ b/pkg/scripts/testdata/TestKubeadmCentOS-with_containerd_with_insecure_registry.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestUpgradeKubeadmAndCNICentOS.golden b/pkg/scripts/testdata/TestUpgradeKubeadmAndCNICentOS.golden
index b82eef84f..0fc0e8785 100644
--- a/pkg/scripts/testdata/TestUpgradeKubeadmAndCNICentOS.golden
+++ b/pkg/scripts/testdata/TestUpgradeKubeadmAndCNICentOS.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \
diff --git a/pkg/scripts/testdata/TestUpgradeKubeletAndKubectlCentOS.golden b/pkg/scripts/testdata/TestUpgradeKubeletAndKubectlCentOS.golden
index 780295c34..b272131b0 100644
--- a/pkg/scripts/testdata/TestUpgradeKubeletAndKubectlCentOS.golden
+++ b/pkg/scripts/testdata/TestUpgradeKubeletAndKubectlCentOS.golden
@@ -58,6 +58,13 @@ repo_gpgcheck=0
 gpgkey=https://packages.cloud.google.com/yum/doc/yum-key.gpg https://packages.cloud.google.com/yum/doc/rpm-package-key.gpg
 EOF
 
+os_name=$(cat /etc/os-release | head -n1 | cut -d \" -f2)
+os_version=$(cat /etc/os-release | head -n2 | tail -1 | cut -d \" -f2)
+if [ "$os_name" == "CentOS Linux" ] && [ "$os_version" == "8 (Core)" ]; then
+	sudo sed -i 's/mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*
+	sudo sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*
+fi
+
 
 sudo yum install -y \
 	yum-plugin-versionlock \