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https://issues.apache.org/jira/browse/CAMEL-24629?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18115044#comment-18115044
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Torsten Mielke commented on CAMEL-24629:
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Thanks [~cfitzwater].
It was certainly worth to raise the ticket and dig into the details.
I confirm that it is best to go with {{\{\{env:HOST\}\}}} and will close this
ticket now.
> toD not taking into account substituted properties with env variables
> ---------------------------------------------------------------------
>
> Key: CAMEL-24629
> URL: https://issues.apache.org/jira/browse/CAMEL-24629
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 4.22.0
> Reporter: Cameron Fitzwater
> Assignee: Torsten Mielke
> Priority: Minor
> Attachments: camel-24629.zip
>
>
> I have a .env file that has:
> MY_HOST=abc
>
> My application.properties file has:
> my.host=${MY_HOST}
>
> When using {*}toD{*}:
> - toD:
> uri:
> "https://{{{{{}my.host{}}}}}.domain.com/${exchangeProperty.location}";
> parameters:
> lean: 1
> bridgeEndpoint: true
> throwExceptionOnFailure: false
> This is failing when using *quarkus* runtime. I've sourced my .env before
> running camel run/export, still fails.
>
> It does NOT fail when using it in *to:* component.
>
> I use this convention to wire the application so that it can more easily be
> consumable by K8s to set the environment variables.
>
>
> Error:
> {code:java}
> org.apache.camel.FailedToCreateRouteException: Failed to create route:
> get-location at: >>>
> DynamicTo[toD[https://{{my.host}}.domain.com/${exchangeProperty.location}?bridgeEndpoint=true&lean=1&throwExceptionOnFailure=false]]
> <<< in route:
> Route(get-location)[From[rest:get:/:/locations/{id}?routeId=... because:
> Unknown function: MY_HOST at location 8
> https://${MY_HOST}.domain.com/${exchangeProperty.location}?bridgeEndpoint=true&lean=1&throwExceptionOnFailure=false
> *{code}
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