Support Proxy Authentication?

[nevotheless]

#For stories, please include the information below:

User Statement:

Neither the vic-machine nor the vSphere installer for vic machines allows that the HTTP_PROXY / HTTPS_PROXY does have an auth statement.

Details:
https://github.com/vmware/vic/blob/master/cmd/vic-machine/common/proxy.go#L50

Seems quite restrictive and should support proxy auth like

HTTPS_PROXY=http://username:password@proxyserver:port and it's HTTP_PROXY Counterpart.
(HTTPS, here is not a typo, there're proxy servers out there that uses only http and still need to be served as a proxy for HTTPS traffic of the machine).

#For bug reports, please include the information below:

VIC version:

1.3.1 (From vmware OVA)

Deployment details:

It was created via the vSphere UI.

Steps to reproduce:

Actual behavior:

Expected behavior:

Logs:

• If you can access the VCH Admin portal, please download and attach the log bundle(s). See https://vmware.github.io/vic/assets/files/html/vic_admin/log_bundles.html for details.
• If the VCH Admin portal is inaccessible, you can enable SSH to the VCH endpoint VM to obtain logs manually. See https://vmware.github.io/vic/assets/files/html/vic_admin/vch_ssh_access.html for details. The VCH logs will be under /var/log/vic/ on the VM.

Additional details as necessary:

[AngieCris]

@andrewtchin @anchal-agrawal @zjs Do you guys happen to know why we don't support username-password authentication on https proxy for vic-machine? I didn't see any info related in the documentation.

[andrewtchin]

I'm not sure what the reason is, but we will consider the enhancement request.

[zjs]

Estimate is currently a ballpark, pending investigation and design.

[zjs]

There was another customer request for this at VMworld 2018 Europe.