This commit adds a new option, `vmx_remove_ethernet_interfaces`, to both
of the VMWare builders. This is useful when building Vagrant boxes,
since Vagrant now produces output such as:
```
WARNING: The VMX file for this box contains a setting that is
automatically overwritten by Vagrant when started. Vagrant will stop
overwriting this setting in an upcoming release which may pre vent
proper networking setup. Below is the detected VMX setting:
ethernet0.pcislotnumber = "33"
If networking fails to properly configure, it may require this VMX
setting. It can be manually applied via the Vagrantfile:
Vagrant.configure(2) do |config|
config.vm.provider :vmware_fusion do |vmware|
vmware.vmx["ethernet0.pcislotnumber"] = "33"
end
end
```
This can be avoided entirely by removing the ethernet adapters from the
VMX file prior to packaging as a Vagrant box, in which case adapters are
created as expected according to the Vagrantfile specification.
When AUTH_URL and each endpoints need SSL client authentication, we
have to specify cert file and private key file.
So, add optional config, cert and key.
[A recent breaking change upstream in Golang's crypto
library](e4e2799dd7)
has broken SSH connectivity for a few builders:
```
==> qemu: Waiting for SSH to become available...
2017/05/20 16:23:58 ui: ==> qemu: Waiting for SSH to become available...
2017/05/20 16:23:58 packer: 2017/05/20 16:23:58 [INFO] Attempting SSH connection...
2017/05/20 16:23:58 packer: 2017/05/20 16:23:58 reconnecting to TCP connection for SSH
2017/05/20 16:23:58 packer: 2017/05/20 16:23:58 handshaking with SSH
2017/05/20 16:23:58 packer: 2017/05/20 16:23:58 handshake error: ssh: must specify HostKeyCallback
2017/05/20 16:23:58 packer: 2017/05/20 16:23:58 [DEBUG] SSH handshake err: ssh: must specify HostKeyCallback
2017/05/20 16:24:05 packer: 2017/05/20 16:24:05 [INFO] Attempting SSH connection...
2017/05/20 16:24:05 packer: 2017/05/20 16:24:05 reconnecting to TCP connection for SSH
2017/05/20 16:24:05 packer: 2017/05/20 16:24:05 handshaking with SSH
2017/05/20 16:24:05 packer: 2017/05/20 16:24:05 handshake error: ssh: must specify HostKeyCallback
2017/05/20 16:24:05 packer: 2017/05/20 16:24:05 [DEBUG] SSH handshake err: ssh: must specify HostKeyCallback
```
Specifying HostKeyCallback as insecure should make things work again
and would make sense for packer's use case.
