c12s-kubespray/roles/kubernetes/master/tasks/post-upgrade.yml
Matthew Mosesohn 804e9a09c0 Migrate k8s data to etcd3 api store
Default backend is now etcd3 (was etcd2).
The migration process consists of the following steps:
* check if migration is necessary
* stop etcd on first etcd server
* run migration script
* start etcd on first etcd server
* stop kube-apiserver until configuration is updated
* update kube-apiserver
* purge old etcdv2 data
2017-03-14 17:50:20 +03:00

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YAML

---
- name: "Post-upgrade | etcd3 upgrade | purge etcd2 k8s data"
command: "{{ bin_dir }}/etcdctl --endpoints={{ etcd_access_addresses }} rm -r /registry"
environment:
ETCDCTL_API: 2
when: kube_apiserver_storage_backend == "etcd3" and needs_etcd_migration|bool|default(false)