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https://issues.apache.org/jira/browse/GUACAMOLE-464?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nick Couchman updated GUACAMOLE-464:
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Fix Version/s: 1.0.0
I believe the actual work for this is done, just pending documentation updates.
> Extension configuration properties from the OS environment
> ----------------------------------------------------------
>
> Key: GUACAMOLE-464
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-464
> Project: Guacamole
> Issue Type: New Feature
> Components: Documentation, guacamole-client
> Reporter: Carl Harris
> Assignee: Carl Harris
> Priority: Major
> Fix For: 1.0.0
>
>
> In the start.sh script of the Docker container image for Guacamole,
> environment variables are used to pass configuration properties to several
> different authentication providers. The names of the environment variables
> are derived from the names of the corresponding properties by converting all
> letters to upper case and replacing all hyphens with underscores. It would he
> helpful if this was generalized such that the configuration properties for
> any extension module could be specified in the environment.
> As described in [The Twelve Factor App](https://12factor.net), the
> environment should be the preferred way to inject deployment-specific
> configuration. This is particularly helpful in the context of containers, but
> in general is easier for operations personnel than application-specific
> configuration files/formats/locations.
> Extension modules generally use an Environment instance to get configuration
> property values. Through a relatively small modification of the
> LocalEnvironment implementation, the System.getenv(String) method could be
> used to first check for the configuration property in the environment (using
> the name transformed as described above) and if not set in the environment,
> then fallback to retrieving it from the Properties instance that was used to
> load guacamole.properties.
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