fix(batch): allow endNode
to be optional for multinode containers
#29849
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Issue
Closes #29415
Reason for this change
The Batch L2 forces users to specify endNode, even though this is technically optional, on batch multinode jobs. This was initially done intentionally, since with endNode we can compute the always-required
numNodes
for the user.numNodes
can be overwritten when actually submitting a job, but only if the job has at least one container withendNode
omitted.If any container omits
endNode
, we can no longer computenumNodes
, which is a required property; in this case, the user must specify it.Description of changes
Adds a new optional property,
numNodes
, and makesendNode
optional on multinode containers.Description of how you validated changes
unit and integration tests
Checklist
By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license