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Say that nginx-ingress updateStrategy depends on Kubernetes version

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Catherine Luse committed 2019-12-30 13:36:45 -07:00
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content/rancher/v2.x/en/cluster-admin/editing-clusters/_index.md
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@@ -81,7 +81,7 @@ As of Rancher v2.3.0, the Kubernetes metadata feature was added, which allows Ra
### Upgrading ingress-nginx
For RKE v0.1.8+, the `ingress-nginx` YAML does not contain an upgrade policy, which makes the update strategy `RollingUpdate` by default. This policy allows the daemonset to restart the pods.
For RKE v0.1.8+, the `ingress-nginx` YAML does not contain an `updateStrategy`. Therefore, the `updateStrategy` is the default value that is set by the Kubernetes API version. For example, the default `updateStrategy` for Kubernetes v1.13 was `onDelete`. When RKE v0.3.2 began supporting Kubernetes v1.16, the `updateStrategy` for `ingress-nginx` became `RollingUpdate` by default for RKE clusters with Kubernetes 1.16. This policy allows the daemonset to restart the pods.
For RKE prior to v0.1.8, the `updateStrategy` directive in the `ingress-nginx` YAML was set to `OnDelete` because RKE did not yet support updating ingress and addons. In that case, you will need to delete these pods to get the correct version for your deployment.