Support for http proxies

We have been using this plugin for a while but recently encountered a scenario where we would need to route via a corporate http proxy. Testing shows that it doesn't take the proxy settings from /etc/environment and i cannot see a place to set these values in this plugin.

Is there plans to support http proxies in this plugin? Alternatively am i missing something silly?

Start by inspecting the fluent-plugin-splunk repository's configuration and HTTP connection entry points, then check how Ruby handles proxy environment settings. Confirm the intended proxy configuration and whether /etc/environment is expected to be read; done means documented, testable proxy support for corporate HTTP routing.

Written by the indexing model from the issue text.