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https://issues.apache.org/jira/browse/AIRFLOW-5066?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16972422#comment-16972422
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ASF GitHub Bot commented on AIRFLOW-5066:
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potiuk commented on pull request #5680: [AIRFLOW-5066] allow k8s fieldref
substitution
URL: https://github.com/apache/airflow/pull/5680
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> Usage of FieldRef in Kubernetes env execution
> ---------------------------------------------
>
> Key: AIRFLOW-5066
> URL: https://issues.apache.org/jira/browse/AIRFLOW-5066
> Project: Apache Airflow
> Issue Type: Bug
> Components: executors
> Affects Versions: 1.10.4, 2.0.0, 1.10.5
> Reporter: Julien Surloppe
> Priority: Minor
>
> In Kubernetes, dynamic pod metadata can be set as environment variables and
> then used as substitution in other environment variables.
> Currently in Airflow, the pod request creation set those variables after the
> ones that can use substitutions so them doen't do it.
> Example usage is:
> * define a variable SPARK_LOCAL_IP using the pod metadata status.podIP
> * using this variable in Spark options as
> -Dspark.driver.host=$(SPARK_LOCAL_IP)
> I will do a PR to fix this behavior.
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