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Editor to share with you how to install Etcd in Kubernetes 1.8.4, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's learn about it!

Before starting to install Kubernetes, you need to create some necessary systems. Etcd is the most important part of Kubernetes. Kubernetes will store most of the information on Etcd to provide it to other nodes to ensure normal operation and communication of the entire cluster.

Create clusters CA and Certificates

In this section, you will need to generate the certificates of the components of client and server, and generate the client certificate for Kubernetes admin user.

Create the / etc/etcd/ssl folder and enter the directory.

Mkdir-p / etc/etcd/ssl & & cd/ etc/etcd/ssl

Generate ca-config.json and etcd-ca-csr.json files, and generate CA keys:

Generate ca-config.json file

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