Environment variables ignored

[amzon-ex]

What version of Hugo are you using (hugo version)?

0.105.0 (latest)

When I use the (cross-platform) binary in hugo_extended_0.105.0_linux-amd64.tar.gz, it doesn't seem to accept environment variables of the form HUGO_BIND=0.0.0.0. It does however accept variables like HUGO_ENV=production. Why is this the case?

[jmooring]

There is not a 1:1:1 relationship between CLI flags, configuration settings, and environment variables.

I think you can use an environment variable to set every configuration value, but the inverse is not true. For example, you can not use a configuration setting to define HUGO_NUMWORKERMULTIPLIER or DART_SASS_BINARY.

With all the work bep did for v0.112.0, I think we have a pretty good handle on the API from the standpoint of CLI flags and configuration settings.

What we do not have is a list of the available environment variables.

Having said all that:

1. I'd like to be able to use HUGO_SERVERPORT and HUGO_SERVERINTERFACE instead of specifying the --port and --bind flags on the command line. I'll create a separate issue.
2. We need to document the env vars somewhere. I'll create an issue in the docs repository.

See:

• Document use of configuration environment variables hugoDocs#2154
• server: Set interface and port via environment variables #11284

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