如何更新 kubernetes 1.10.4 到 1.11

Question

我使用的是 Kubernetes 集群版本 1.10.4。我想将它更新到 1.12，但首先，我需要将它更新到 1.11，这怎么可能？

我阅读了这个常见问题解答： https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-11/

但是没有用。步骤尝试立即更新到 1.12 并以错误结束。 :(

求助！

Answer 1

通过安装 v.1.10.4 版本并尝试使用 https://kubernetes.io/docs/tasks/administer-cluster/kubeadm/kubeadm-upgrade-1-11/ FAQ 将其升级到 v.1.11.0 重现了您的问题。

同样的错误并尝试升级到 1.12.1 而不是 1.11.0

[upgrade/config] FATAL: invalid configuration: kind and apiVersion is mandatory information that needs to be specified in all YAML documents

发生这种情况是因为您在使用以下命令时将 v1.12.1 传递给 $VERSION:

export VERSION=$(curl -sSL https://dl.k8s.io/release/stable.txt)

root@kube-update-11:~# echo $VERSION

v1.12.1

你应该做的是手动设置正确的版本：

export VERSION=v1.11.0
export ARCH=amd64
curl -sSL https://dl.k8s.io/release/${VERSION}/bin/linux/${ARCH}/kubeadm > /usr/bin/kubeadm
chmod a+rx /usr/bin/kubeadm

然后重试

root@kube-update-11:~# kubeadm upgrade plan

[preflight] Running pre-flight checks.

[upgrade] Making sure the cluster is healthy:

[upgrade/config] Making sure the configuration is correct:

[upgrade/config] Reading configuration from the cluster...

[upgrade/config] FYI: You can look at this config file with 'kubectl -n kube-system get cm kubeadm-config -oyaml'

I1022 12:07:11.188895 20089 feature_gate.go:230] feature gates: &{map[]}

[upgrade] Fetching available versions to upgrade to

[upgrade/versions] Cluster version: v1.10.4

[upgrade/versions] kubeadm version: v1.11.0

[upgrade/versions] Latest stable version: v1.12.1

[upgrade/versions] Latest version in the v1.10 series: v1.10.9

root@kube-update-11:~# kubeadm upgrade apply v1.11.0

[preflight] Running pre-flight checks.

[upgrade] Making sure the cluster is healthy:

[upgrade/config] Making sure the configuration is correct:

...

[upgrade/version] You have chosen to change the cluster version to "v1.11.0"

[upgrade/versions] Cluster version: v1.10.4

[upgrade/versions] kubeadm version: v1.11.0

...

[upgrade/successful] SUCCESS! Your cluster was upgraded to "v1.11.0". Enjoy!

[upgrade/kubelet] Now that your control plane is upgraded, please proceed with upgrading your kubelets if you haven't already done so.

如何更新 kubernetes 1.10.4 到 1.11

How update kubernetes 1.10.4 to 1.11

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