VirtualBox provision process attempts to take over ports on host and fails if it cannot

[denis-yuen]

When attempting to provision with the following:

perl bin/launcher/launch_cluster.pl --use-virtualbox --working-dir target-vb-1 --vb-ram 12000 --vb-cores 2 --config-file vagrant_cluster_launch.json 

I got the following message and the VM failed to even power on

ALL LAUNCH THREADS STARTED
ALL LAUNCH THREADS COMPLETED
Was unable to get node infomation at /home/dyuen/Bindle/bin/launcher/../../lib/cluster/provision.pm line 193
cluster::provision::get_host_id_from_vagrant_status('Current machine states:\x{a}\x{a}master                    poweroff (...') called at /home/dyuen/Bindle/bin/launcher/../../lib/cluster/provision.pm line 179
cluster::provision::find_node_info('HASH(0x2830090)', 'Current machine states:\x{a}\x{a}master                    poweroff (...') called at /home/dyuen/Bindle/bin/launcher/../../lib/cluster/provision.pm line 56
cluster::provision::find_cluster_info('HASH(0x1d685c8)', 'target-vb-1') called at /home/dyuen/Bindle/bin/launcher/../../lib/cluster/provision.pm line 20
cluster::provision::provision_instances('cluster::provision', 'HASH(0x1d685e0)', 'HASH(0x1d685c8)', 'target-vb-1', 0, 0) called at bin/launcher/launch_cluster.pl line 157

The reason is I had to change this section of code in the Vagrantfile

--- a/templates/Vagrantfile_part.template
+++ b/templates/Vagrantfile_part.template
 @@ -81,15 +81,15 @@
        override.ssh.private_key_path = "%{VCLOUD_SSH_PEM_FILE}"
     end

-    %{custom_hostname}.vm.network :forwarded_port, host: 8081, guest: 80
-    %{custom_hostname}.vm.network :forwarded_port, host: 8080, guest: 8080
-    %{custom_hostname}.vm.network :forwarded_port, host: 8888, guest: 8888
-    %{custom_hostname}.vm.network :forwarded_port, host: 11000, guest: 11000
-    %{custom_hostname}.vm.network :forwarded_port, host: 50030, guest: 50030
-    %{custom_hostname}.vm.network :forwarded_port, host: 50070, guest: 50070
-    %{custom_hostname}.vm.network :forwarded_port, host: 60010, guest: 60010
-    %{custom_hostname}.vm.network :forwarded_port, host: 60030, guest: 60030
-    %{custom_hostname}.vm.network :forwarded_port, host: 5432, guest: 5432
     #%{custom_hostname}.vm.hostname = "%{custom_hostname}"
     %{custom_hostname}.vm.provision :shell, :path => "%    {custom_hostname}_os_server_setup.sh"
   end

Please make the following changes

1. Ensure that we get a more decipherable error message
2. Add a parameter to make taking over of host ports optional