Adds two config options to the Proxmox builder:
```
http_interface
vm_interface
```
Both give the user the ability to specify an interface whos IP will be set as the `.HTTPIP` and VMIP respectively.
This is useful when the VM and or the machine executing Packer has multiple interfaces.
Until now Packer would accept the first non-loopback IP as the `.HTTPIP` and VMIP.
I'm open to suggestions and any kind of feedback.
* Added ability to define the NIC where the HTTPIP is taken from.
* Added VM interface config option
* fmt and documentation
* Moved HTTPInterface into HTTPCommon
* Build Fix
* Documentation Fix
tooling. Tested on OSX, `Windows, and Linux. Documented command line dependencies.
Added acceptance tests (behind testacc flag, since there are dependencies).
This option is only implemented for the vmware and hyperv iso builders. It will be
implemented for others in later PRs in order to make review easier.
Before change
```
⇶ golangci-lint run --disable-all --no-config --enable=staticcheck | ack SA6005
builder/profitbricks/step_create_server.go:254:22: SA6005: should use strings.EqualFold(a, b) instead of strings.ToLower(a) == strings.ToLower(b) (staticcheck)
builder/oneandone/config.go:97:7: SA6005: should use strings.EqualFold(a, b) instead of strings.ToLower(a) == strings.ToLower(b) (staticcheck)
builder/vmware/common/driver_parser.go:1199:7: SA6005: should use strings.EqualFold(a, b) instead of strings.ToLower(a) == strings.ToLower(b) (staticcheck)
```
After change
```
⇶ golangci-lint run --disable-all --no-config --enable=staticcheck | ack SA6005
```
Refactor step_export and the driver interface to move the ovftool call
into the vmware driver. This refactor allows us to add meaningful tests
to step_export, which I have also added here.
* add progress tracker to vmware-esx iso upload. Add colored prefix to tracker to make it clear which build a tracker belongs to.
* fix mock; fix tests