Fix the VM creation script

Also join the zerotier network

site-cookbooks/kosmos_kvm/files/create_vm

@@ -55,7 +55,9 @@ runcmd:
   # Enable serial console (for virsh)
   - systemctl enable serial-getty@ttyS0.service && systemctl start serial-getty@ttyS0.service
   - curl -s 'https://raw.githubusercontent.com/zerotier/ZeroTierOne/master/doc/contact%40zerotier.com.gpg' | gpg --import
-  - if z=\$(curl -s 'https://install.zerotier.com/' | gpg"); then echo "$z" | sudo bash; fi
+  - curl -s -o /tmp/install_zerotier 'https://install.zerotier.com/'
+  - cat /tmp/install_zerotier | gpg && bash /tmp/install_zerotier
+  - zerotier-cli join 12ac4a1e719d706e
 EOS
 
   cat > meta-data <<-EOS