Bug 1468752

Summary:	kubelet requires --cgroup-driver=systemd in its conifguration
Product:	[Fedora] Fedora	Reporter:	Jason Brooks <jbrooks>
Component:	kubernetes	Assignee:	Jan Chaloupka <jchaloup>
Status:	CLOSED ERRATA	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	26	CC:	eparis, golang-updates, ichavero, jbrooks, jcajka, jchaloup, nhorman, tstclair, vbatts
Target Milestone:	---
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Fixed In Version:	kubernetes-1.6.7-1.fc26	Doc Type:	If docs needed, set a value
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Last Closed:	2017-07-16 20:20:33 UTC	Type:	Bug
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oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
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Description Jason Brooks 2017-07-07 20:07:41 UTC

Description of problem:

Fedora's docker configuration specifies `--exec-opt native.cgroupdriver=systemd` and the kubelet expects the cgroupfs driver. Starting with kube 1.6.x, this prevents the kubelet from starting on Fedora (and CentOS). The kubelet rpm provided by the upstream kubeadm effort adds `Environment="KUBELET_CGROUP_ARGS=--cgroup-driver=systemd"` to the unit: https://github.com/kubernetes/release/blob/master/rpm/10-kubeadm.conf#L8

This can also be worked around by adding `--cgroup-driver=systemd` to the `KUBELET_ARGS=` in `/etc/kubernetes/kubelet.`

See also https://github.com/kubernetes/kubernetes/issues/43805

Comment 1 Jan Chaloupka 2017-07-08 12:45:32 UTC

Fixing in the upstream repository first: https://github.com/kubernetes/contrib/pull/2659

Comment 2 Fedora Update System 2017-07-08 22:26:01 UTC

kubernetes-1.6.7-1.fc26 has been submitted as an update to Fedora 26. https://bodhi.fedoraproject.org/updates/FEDORA-2017-48014f1cad

Comment 3 Jason Brooks 2017-07-10 19:45:25 UTC

That fix in the ansible was being overwritten later in the script, this should fix that: https://github.com/kubernetes/contrib/pull/2663

Comment 4 Fedora Update System 2017-07-12 08:35:30 UTC

kubernetes-1.6.7-1.fc26 has been pushed to the Fedora 26 testing repository. If problems still persist, please make note of it in this bug report.
See https://fedoraproject.org/wiki/QA:Updates_Testing for
instructions on how to install test updates.
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2017-48014f1cad

Comment 5 Fedora Update System 2017-07-16 20:20:33 UTC

kubernetes-1.6.7-1.fc26 has been pushed to the Fedora 26 stable repository. If problems still persist, please make note of it in this bug report.