vagrant: some fixes + use br0 as bridged interface

vagrant/Vagrantfile

@@ -26,10 +26,10 @@ Vagrant.configure(2) do |config|
 
     # node.vm.network "private_network", ip: "172.16.16.100"
     node.vm.network :public_network,
-      #:dev => "wlp5s0",
+      :dev => "br0",
       :mode => "bridge",
       :type => "bridge",
-      :ip => 192.168.0.21
+      :ip => "192.168.0.21"
 
 
 
@@ -40,7 +40,7 @@ Vagrant.configure(2) do |config|
     #end
 
     node.vm.provider :libvirt do |libvirt|
-      libvirt.name    = "kmaster"
+      libvirt.hostname = "kmaster"
       libvirt.memory  = MEMORY_MASTER_NODE
       libvirt.nested  = true
       libvirt.cpus    = CPUS_MASTER_NODE
@@ -63,12 +63,12 @@ Vagrant.configure(2) do |config|
       node.vm.box_version       = VAGRANT_BOX_VERSION
       node.vm.hostname          = "kworker#{i}.home.lab"
 
-      # node.vm.network "private_network", ip: "192.168.0." + (20+i}.to_s"
+      # node.vm.network "private_network", ip: "192.168.0." + (20+i).to_s"
       node.vm.network :public_network,
-      #:dev => "wlp5s0",
+      :dev => "br0",
       :mode => "bridge",
       :type => "bridge",
-      :ip => "192.168.0." + (20+i}.to_s
+      :ip => "192.168.0." + (20+i).to_s
 
 
       #node.vm.provider :virtualbox do |v|
@@ -78,7 +78,7 @@ Vagrant.configure(2) do |config|
       #end
 
       node.vm.provider :libvirt do |libvirt|
-        libvirt.name = "kworker#{i}"
+        libvirt.hostname = "kworker#{i}"
         libvirt.memory   = MEMORY_WORKER_NODE
         libvirt.nested   = true
         libvirt.cpus     = CPUS_WORKER_NODE