Bug 1777657

Summary:	[RFE] Enable to configure iscsi options via director.
Product:	Red Hat OpenStack	Reporter:	Keigo Noha <knoha>
Component:	puppet-tripleo	Assignee:	Cinder Bugs List <cinder-bugs>
Status:	NEW ---	QA Contact:	Evelina Shames <eshames>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	13.0 (Queens)	CC:	abishop, amoralej, gcharot, jjoyce, jschluet, pgrist, slinaber, tvignaud
Target Milestone:	---	Keywords:	FutureFeature
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Hardware:	x86_64
OS:	Linux
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Keigo Noha 2019-11-28 01:40:25 UTC

Description of problem:
Enable to configure iscsi options via director.

Currently, director cannot configure iscsid parameter via template or puppet.
It means that the user need to create a custom script to configure iscsid.conf or inject the option into file via shell command.

However, configuration to iscsi service is required with iscsi storage backend in cinder.
Especially, replacement_timeout should be reduced to detect the path failure faster.
The default value is too larger than the default scsi command timeout in instance side. It causes I/O error in instance side.

To reduce the such situation, we should have the configuration method via template.