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https://issues.apache.org/jira/browse/CAMEL-21336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17888332#comment-17888332
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Claus Ibsen commented on CAMEL-21336:
-------------------------------------
Ah okay, yeah you should use this to resolve the ENV
org.apache.camel.util.IOHelper#lookupEnvironmentVariable
> camel-kamelet - Allow Kamelets configured by EnvVars only
> ---------------------------------------------------------
>
> Key: CAMEL-21336
> URL: https://issues.apache.org/jira/browse/CAMEL-21336
> Project: Camel
> Issue Type: Improvement
> Components: camel-kamelet
> Affects Versions: 4.8.0
> Reporter: Christoph Deppisch
> Assignee: Christoph Deppisch
> Priority: Major
> Fix For: 4.9.0
>
>
> Kamelets may be configured via environment variables following the property
> component syntax like CAMEL_KAMELET_AWS_S3_SOURCE_BUCKET_NAME_OR_ARN=myArn
> Apparently the Kamelet property validation for required parameters raises
> exceptions when initializing the Kamelet. This is because the config
> properties configured via environment variables are not considered in the
> validation process.
> The raised exception looks like this:
> {noformat}
> s3-sink-deployment-7886f69cc-khspt sink Caused by:
> java.lang.IllegalArgumentException: Route template aws-s3-sink the following
> mandatory parameters must be provided: bucketNameOrArn, region
> s3-sink-deployment-7886f69cc-khspt sink at
> org.apache.camel.impl.DefaultModel.addRouteFromTemplate(DefaultModel.java:477)
> s3-sink-deployment-7886f69cc-khspt sink at
> org.apache.camel.impl.DefaultModel.addRouteFromTemplate(DefaultModel.java:416)
> s3-sink-deployment-7886f69cc-khspt sink at
> org.apache.camel.impl.DefaultCamelContext.addRouteFromTemplate(DefaultCamelContext.java:362)
> s3-sink-deployment-7886f69cc-khspt sink at
> org.apache.camel.component.kamelet.KameletComponent$LifecycleHandler.createRouteForEndpoint(KameletComponent.java:433)
> s3-sink-deployment-7886f69cc-khspt sink ... 28 more
> s3-sink-deployment-7886f69cc-khspt sink {noformat}
> As a workaround users need to set an empty Kamelet property value e.g.g via
> application.properties to pass the Kamelet validation and then overwrite the
> value with the environment variable.
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