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Master component and kubelet container upgrade fixes

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* Fixes an issue where apiserver and friends (controller manager, scheduler) were prevented from restarting after manifests/secrets are changed. This occurred when a replaced kubelet doesn't reconcile new master manifests, which caused old master component versions to linger during deployment. In my case this was causing upgrades from k8s 1.6/1.7 -> k8s 1.8 to fail
* Improves transitions from kubelet container to host kubelet by preventing issues where kubelet container reappeared during the deployment
This commit is contained in:
Chad Swenson
2017-11-08 01:40:33 -06:00
parent 8b2bec700a
commit e9f795c5ce
4 changed files with 47 additions and 7 deletions
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roles/kubernetes/master/tasks/pre-upgrade.yml
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@@ -24,7 +24,7 @@
when: (secret_changed|default(false) or etcd_secret_changed|default(false))
- name: "Pre-upgrade | Delete master containers forcefully"
shell: "docker ps -f name=k8s-{{item}}* -q | xargs --no-run-if-empty docker rm -f"
shell: "docker ps -af name=k8s_{{item}}* -q | xargs --no-run-if-empty docker rm -f"
with_items:
- ["kube-apiserver", "kube-controller-manager", "kube-scheduler"]
when: kube_apiserver_manifest_replaced.changed