feat: Allow editing yum repo file by adding sudo

openstack-proxy/nodeimage.pkr.hcl

@@ -38,8 +38,8 @@ build {
 
   provisioner "shell" {
     inline = [
-      "sed -i 's/^mirrorlist/#mirrorlist/g' /etc/yum.repos.d/CentOS-*",
-      "sed -i 's|#baseurl=http://mirror.centos.org|baseurl=http://vault.centos.org|g' /etc/yum.repos.d/CentOS-*"
+      "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-*"
     ]
   }