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https://issues.apache.org/jira/browse/FLUME-2993?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15714864#comment-15714864
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Bessenyei Balázs Donát commented on FLUME-2993:
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This has been around for a while.
If someone has review comments, please share. Otherwise, I'll commit this soon.
> Support environment variables in configuration files
> ----------------------------------------------------
>
> Key: FLUME-2993
> URL: https://issues.apache.org/jira/browse/FLUME-2993
> Project: Flume
> Issue Type: New Feature
> Components: Configuration
> Reporter: Bessenyei Balázs Donát
> Assignee: Bessenyei Balázs Donát
> Fix For: v1.8.0
>
>
> Flume does not currently support environment variable interpolation in the
> properties file configuration.
> Enabling it would help with
> * removing security credentials from config files
> * help with copy-pastes in configuration files with multiple agents defined
> It is arguably a best practice to store (some) config in the environment
> variables: https://12factor.net/config
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