Using proxy for downloads with drpcli -D has no effect on uploadiso command

[kapsh]

Steps to reproduce

1. Install drp into environment where HTTP proxy should be used for internet access.
2. Try to download items from catalog using drpcli -D:

drpcli -D PROXY contents upload catalog:task-library-stable
drpcli -D PROXY bootenvs uploadiso sledgehammer

Expected result

Every catalog item is downloaded and installed.

Actual result

HTTP proxy specified in -D command line switch has no effect on uploadiso subcommand:

# drpcli -D http://localhost:3131 bootenvs uploadiso sledgehammer
2020/01/30 17:57:04 Unable to connect to https://s3.us-east-2.amazonaws.com/vl-hammer/sledgehammer-9b5276ac5826520829aa73c149fe672fe2363656.arm64.tar: Get https://s3.us-east-2.amazonaws.com/vl-hammer/sledgehammer-9b5276ac5826520829aa73c149fe672fe2363656.arm64.tar: dial tcp 52.219.104.218:443: connect: connection refused: Skipping

Experiment shows that it works when certain environment variables are set (http_proxy, https_proxy) but they aren't seem to be documented.

[galthaus]

Yeah - we probably didn't cover the uploadiso command with the -D flag.

[kapsh]

Thanks for confirmation, looking forward for this to be fixed.

[galthaus]

This will be in the v4.3.0 release (within a month or so).