Bug 1542476 - kubeadm 1.9.1 systemd dropin needs --bootstrap-kubeconfig
Summary: kubeadm 1.9.1 systemd dropin needs --bootstrap-kubeconfig
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: kubernetes
Version: 27
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: ---
Assignee: Jan Chaloupka
QA Contact: Fedora Extras Quality Assurance
URL:
Whiteboard:
Keywords:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-02-06 12:24 UTC by Wouter Hummelink
Modified: 2018-05-16 13:05 UTC (History)
8 users (show)

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Clone Of:
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Last Closed: 2018-02-23 16:00:02 UTC

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Description Wouter Hummelink 2018-02-06 12:24:49 UTC 
Description of problem:
kubeadm 1.9 relies on kubelet config provided by the kubeadm package to set --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubeconfig.conf. The absence of this option causes kubelet startup to fail.

Version-Release number of selected component (if applicable):
kubernetes-client-1.9.1-2.fc27.x86_64
kubernetes-node-1.9.1-2.fc27.x86_64
kubernetes-kubeadm-1.9.1-2.fc27.x86_64

How reproducible:
kubeadm join appears to finish correctly, however kubelet doesn't start due to missing kubeconfig.

Steps to Reproduce:
1. install kubernetes-kubeadm 
2. bootstrap a cluster using kubeadm init
3. join a node using kubeadm join command returned by kubeadm init

Actual results:
kubelet fails to start

Expected results:
kubelet bootstraps its TLS config and starts using newly generated kubeconfig.

Additional info:
https://github.com/kubernetes/release/blob/master/rpm/10-kubeadm-post-1.8.conf
Comment 1 Fedora Update System 2018-02-12 21:10:16 UTC 
kubernetes-1.9.1-5.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-e5874f800a
Comment 2 Fedora Update System 2018-02-13 16:41:41 UTC 
kubernetes-1.9.1-5.fc27 has been pushed to the Fedora 27 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-2018-e5874f800a
Comment 3 Fedora Update System 2018-02-23 16:00:02 UTC 
kubernetes-1.9.1-5.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
Comment 4 Jason Brooks 2018-03-23 19:50:08 UTC 
I don't think was actually fixed -- there's no --bootstrap-kubeconfig=/etc/kubernetes/bootstrap-kubeconfig.conf in https://src.fedoraproject.org/rpms/kubernetes/blob/f27/f/kubeadm.conf
Comment 5 Jan Chaloupka 2018-04-17 10:57:53 UTC 
Ok, i will add the option in the next update. We are still fighting with the k8s not starting on f27+ with the latest systemd.
Comment 7 Fedora Update System 2018-05-02 11:29:50 UTC 
kubernetes-1.10.1-0.fc27 has been submitted as an update to Fedora 27. https://bodhi.fedoraproject.org/updates/FEDORA-2018-16c8fdf9b8
Comment 8 Fedora Update System 2018-05-02 12:38:08 UTC 
kubernetes-1.10.1-0.fc28 has been submitted as an update to Fedora 28. https://bodhi.fedoraproject.org/updates/FEDORA-2018-9b965c4eed
Comment 9 Fedora Update System 2018-05-11 01:49:13 UTC 
kubernetes-1.10.1-0.fc27 has been pushed to the Fedora 27 stable repository. If problems still persist, please make note of it in this bug report.
Comment 10 Fedora Update System 2018-05-16 13:05:59 UTC 
kubernetes-1.10.1-0.fc28 has been pushed to the Fedora 28 stable repository. If problems still persist, please make note of it in this bug report.
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