Init kubespray with Vagrant is now working

bootstrap/init_kubespray.sh

@@ -7,16 +7,14 @@ source $VENVDIR/bin/activate
 pip install -r kubespray/requirements.txt
 
 # prepare an inventory to test with
-INV=dev.inventory
-rm -rf kubespray/${INV}.bak &> /dev/null
+INV=dev
 mv kubespray/${INV} kubespray/${INV}.bak &> /dev/null
 cp -a kubespray/inventory/sample kubespray/${INV}
-rm -f kubespray/${INV}/hosts.ini
 
 # customize the vagrant environment
 mkdir -p kubespray/vagrant
 cat << EOF > kubespray/vagrant/config.rb
-\$instance_name_prefix = "k8s"
+\$instance_name_prefix = "k9s"
 \$vm_cpus = 4
 \$num_instances = 1
 \$os = "centos"