diff --git a/os/kvm-repo.sh b/os/kvm-repo.sh
new file mode 100644
index 0000000..57167ce
--- /dev/null
+++ b/os/kvm-repo.sh
@@ -0,0 +1,28 @@
+yum_repo(){
+    cd /etc/yum.repos.d/ && \
+    dirname=$(mktemp -d repo-XXXXX)
+    mv *.repo $dirname 2>/dev/null
+    if [ $repo_type -eq 0 ];then
+        check_resolv yum.cloud.repo && echo "$local_repo yum.cloud.repo " >> /etc/hosts
+        echo "开始下载资源，请等待"
+        for i in nexus-Centos-Base.repo nexus-epel.repo nexus-mysql.repo nexus-docker-ce.repo nexus-kubernetes.repo
+        do
+            curl -s -o $i "https://gitea.beyourself.org.cn/newrain001/download/raw/branch/master/repo/$i"
+            echo "yum 源 $i 配置完成"
+        done
+    elif [ $repo_type -eq 1 ];then
+        curl -o /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
+        curl -o /etc/yum.repos.d/epel.repo https://mirrors.aliyun.com/repo/epel-7.repo
+        echo "阿里云源配置完成"
+    fi
+    echo "开始创建缓存"
+    yum clean all && \
+    yum makecache && \
+    echo "缓存创建
+ping -w2 -c2 $repo &>/dev/null
+if [ $? -eq 0 ];then
+    repo_type=0
+else
+    repo_type=1
+fi
+yum_repo
\ No newline at end of file