jlpedrosa commented on issue #24962: [SPARK-28149][K8S] Added variable to 
disable negative DNS caching
URL: https://github.com/apache/spark/pull/24962#issuecomment-513716101
 
 
   Hi @erikerlandson 
   
   Looking at the [docs of 
master](https://spark.apache.org/docs/latest/running-on-kubernetes.html), I see 
that it si not possible to mount a config map as a file. The only types of 
mounts supported are:
   
   hostPath: mounts a file or directory from the host node’s filesystem into a 
pod.
   emptyDir: an initially empty volume created when a pod is assigned to a node.
   persistentVolumeClaim: used to mount a PersistentVolume into a pod.
   
   Do you want me to open a separate ticket to add that feature? "Capability to 
mount config maps"
   Do you preffer to change the approach? Do you want me to implement that 
feature in this ticket?
   

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