Bug 1562943

Summary:	CRI-O requires nodes labelled as "runtime=cri-o"
Product:	OpenShift Container Platform	Reporter:	Wolfgang Kulhanek <wkulhane>
Component:	Installer	Assignee:	Scott Dodson <sdodson>
Status:	CLOSED DUPLICATE	QA Contact:	Johnny Liu <jialiu>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	3.9.0	CC:	aos-bugs, jokerman, mmccomas, wmeng
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Hardware:	Unspecified
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Fixed In Version:		Doc Type:	If docs needed, set a value
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Last Closed:	2018-04-03 02:01:38 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Wolfgang Kulhanek 2018-04-02 17:44:59 UTC

Description of problem:

Version-Release number of the following components:
OCP 3.9 GA

How reproducible:

Steps to Reproduce:
1. Try to install OCP with CRI-O support and Garbage Collection Support enabled
2. Install fails with a message that no nodes labelled "runtime=cri-o" are found


This is either an installer or a docs bug. Relevant Docs:
  https://docs.openshift.com/container-platform/3.9/release_notes/ocp_3_9_release_notes.html#ocp-39-crio

openshift_use_crio=true
openshift_crio_enable_docker_gc=true

Docs say on "openshift_crio_enable_docker_gc":
When enabled, it will run garbage collection on all nodes by default. You can also limit the running of the daemonset on specific nodes by setting the following:

  openshift_crio_docker_gc_node_selector={'runtime': 'cri-o'}

However this setting seems to be the default and if no nodes in the cluster are labelled as "runtime=cri-o" the install fails.

Comment 1 Johnny Liu 2018-04-03 02:01:38 UTC

We already have a installer bug to track this:
https://bugzilla.redhat.com/show_bug.cgi?id=1553452

For doc, there is some statement about it:
"""
For example, the above would ensure it is only run on nodes with the runtime: cri-o label. 
"""

From QE's view, the statement is already clear.

Here I will close this bug as a DUP. If you still think the doc is not clear enough, pls reopen it, and move it to "Document" component. Thx.

*** This bug has been marked as a duplicate of bug 1553452 ***