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https://issues.apache.org/jira/browse/KARAF-7608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17649309#comment-17649309
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ASF GitHub Bot commented on KARAF-7608:
---------------------------------------
jbonofre merged PR #1698:
URL: https://github.com/apache/karaf/pull/1698
> Override config option by environment variable not possible
> -----------------------------------------------------------
>
> Key: KARAF-7608
> URL: https://issues.apache.org/jira/browse/KARAF-7608
> Project: Karaf
> Issue Type: Bug
> Components: karaf
> Affects Versions: 4.4.2
> Reporter: Oliver Fürniß
> Assignee: Jean-Baptiste Onofré
> Priority: Major
>
> [Related
> Documentation|https://karaf.apache.org/manual/latest/#_environment_variables_system_properties]
>
> It works for most config options, but not for all. ;)
>
> Example config : {{[karaf]/etc/org.apache.felix.fileinstall-deploy.cfg}}
> Option to override : {{felix.fileinstall.dir}}
> Pid (config-list) : {{org.apache.felix.fileinstall~deploy}}
> Problem is the '-' in the filename which gets converted to a '~' in the
> config Pid.
>
> Karaf 4.4.2 code (ClientConfig.java & KarafConfigurationPlugin.java):
> {code:java}
> ...
> String env = (pid + "." + key).toUpperCase().replaceAll("\\.", "_");
> ...
> {code}
>
> When
> pid = {{org.apache.felix.fileinstall~deploy}}
> key = {{felix.fileinstall.dir}}
>
> it results in
> env = {{ORG_APACHE_FELIX_FILEINSTALL~DEPLOY_FELIX_FILEINSTALL_DIR}}
>
> But most shells only support a-z, A-Z, 0-9 and _ for variable names.
>
> And this fails due to the '~' character in the variable name
> {code:java}
> export
> ORG_APACHE_FELIX_FILEINSTALL~DEPLOY_FELIX_FILEINSTALL_DIR=/home/of/karaf_deploy_folder
>
> {code}
>
> Solution
> Maybe replace all special characters to "_" and not just the dots?
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