Kubernetes:用印花棉布替换法兰绒 [英] Kubernetes: Replace Flannel with Calico

问题描述

我是Kubernetes的新手，我想尝试使用不同的CNI.

I am new to Kubernetes and I would like to try different CNI.

在当前的集群中，我正在使用Flannel

In my current Cluster, I am using Flannel

现在，我想使用Calico，但找不到合适的指南来清理Flannel和安装Calico.

Now, I would like to use Calico but I cannot find a proper guide to clean up Flannel and install Calico.

能否请您指出正确的程序?

Could you please point out the correct procedure?

谢谢

推荐答案

Calico提供了一种迁移工具，可以对集群中的节点进行滚动更新.最后，您将拥有一个在Pod之间使用VXLAN网络的功能齐全的Calico群集.

Calico provides a migration tool that performs a rolling update of the nodes in the cluster. At the end, you will have a fully-functional Calico cluster using VXLAN networking between pods.

从文档我们有:

过程

1-首先，安装Calico.

1 - First, install Calico.

kubectl apply -f https://docs.projectcalico.org/v3.10/manifests/flannel-migration/calico.yaml

然后，安装迁移控制器以启动迁移.

Then, install the migration controller to initiate the migration.

kubectl apply -f https://docs.projectcalico.org/v3.10/manifests/flannel-migration/migration-job.yaml

应用后，您将看到节点开始一次更新一个.

Once applied, you will see nodes begin to update one at a time.

2-要监视迁移，请运行以下命令.

2 - To monitor the migration, run the following command.

kubectl get jobs -n kube-system flannel-migration

在迁移过程中，升级托管它的节点时，迁移控制器可能会重新安排几次.当以上命令的输出显示1/1完成时，说明安装已完成.例如:

The migration controller may be rescheduled several times during the migration when the node hosting it is upgraded. The installation is complete when the output of the above command shows 1/1 completions. For example:

NAME                COMPLETIONS   DURATION   AGE
flannel-migration   1/1           2m59s      5m9s

3-完成后，使用以下命令删除迁移控制器.

3 - After completion, delete the migration controller with the following command.

kubectl delete -f https://docs.projectcalico.org/v3.10/manifests/flannel-migration/migration-job.yaml

要了解更多信息:

To know more about it: Migrating a cluster from flannel to Calico

本文介绍了如何通过绒布网络迁移现有Kubernetes集群以使用Calico网络.

This article describes how migrate an existing Kubernetes cluster with flannel networking to use Calico networking.

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