From 5a904c38b8afbc6c7c4789a3486f7e5130f601c9 Mon Sep 17 00:00:00 2001 From: Flowkap Date: Mon, 17 Feb 2020 10:45:29 +0100 Subject: [PATCH] UPdate docs to match actuall required settings to perform an unsafe upgrade using cluster.yml playbook. Relates to https://github.com/kubernetes-sigs/kubespray/issues/4736 and https://github.com/kubernetes-sigs/kubespray/issues/4139 (#5609) --- docs/upgrades.md | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/docs/upgrades.md b/docs/upgrades.md index 01dc67abdca..b42dd69d0b1 100644 --- a/docs/upgrades.md +++ b/docs/upgrades.md @@ -25,15 +25,17 @@ If you wanted to upgrade just kube_version from v1.4.3 to v1.4.6, you could deploy the following way: ```ShellSession -ansible-playbook cluster.yml -i inventory/sample/hosts.ini -e kube_version=v1.4.3 +ansible-playbook cluster.yml -i inventory/sample/hosts.ini -e kube_version=v1.4.3 -e upgrade_cluster_setup=true ``` And then repeat with v1.4.6 as kube_version: ```ShellSession -ansible-playbook cluster.yml -i inventory/sample/hosts.ini -e kube_version=v1.4.6 +ansible-playbook cluster.yml -i inventory/sample/hosts.ini -e kube_version=v1.4.6 -e upgrade_cluster_setup=true ``` +The var ```-e upgrade_cluster_setup=true``` is needed to be set in order to migrate the deploys of e.g kube-apiserver inside the cluster immediately which is usually only done in the graceful upgrade. (Refer to [#4139](https://github.com/kubernetes-sigs/kubespray/issues/4139) and [#4736](https://github.com/kubernetes-sigs/kubespray/issues/4736)) + ## Graceful upgrade Kubespray also supports cordon, drain and uncordoning of nodes when performing @@ -63,7 +65,7 @@ For instance, if you're on v2.6.0, then check out v2.7.0, run the upgrade, check Assuming you don't explicitly define a kubernetes version in your k8s-cluster.yml, you simply check out the next tag and run the upgrade-cluster.yml playbook * If you do define kubernetes version in your inventory (e.g. group_vars/k8s-cluster.yml) then either make sure to update it before running upgrade-cluster, or specify the new version you're upgrading to: `ansible-playbook -i inventory/mycluster/hosts.ini -b upgrade-cluster.yml -e kube_version=v1.11.3` - + Otherwise, the upgrade will leave your cluster at the same k8s version defined in your inventory vars. The below example shows taking a cluster that was set up for v2.6.0 up to v2.10.0