Manually
Install docker using official document
Install Docker Engine on CentOS
Instructions for installing Docker Engine on CentOS
Docker machine
Install docker using docker machine
Installation
Releases · docker/machine
Machine management for a container-centric world. Contribute to docker/machine development by creating an account on GitHub.
curl: (35) OpenSSL SSL_connect: SSL_ERROR_SYSCALL in connection to github-production-release-asset-2e65be.s3.amazonaws.com:443
In this case, you need to ensure you can access amazonaws as well, for me, I use proxy(Trojan), Or you can download mannually, and excute command in above order.
Unable to query docker version: Get https://xxx:2376/v1.15/version: dial tcp xxx:2376: connect: no route to host
Waiting for SSH to be available...
SSH免密码
主节点上生成密钥对,分发到各个节点上去 * 在主节点上执行ssh-keygen -t rsa一路回车,生成无密码的密钥对。 ssh-keygen -t rsa * 将公钥添加到认证文件中 cat ~/.ssh/id_rsa.pub >> ~/.ssh/authorized_keys * 设置authorized_keys的访问权限 chmod 600 ~/.ssh/authorized_keys * scp文件到所有datenode节点 scp ~/.ssh/authorized_keys root@node1:~/.ssh/ scp ~/.ssh/au…

Docker machine CLI
Docker machine command for docker management
Drivers:
Machine drivers
Reference for drivers Docker Machine supports
Docker registry
Install a docker registry for images management
Deploy a registry server
Explains how to deploy a registry
https
ACME Client Implementations
Last updated: Nov 23, 2020 | See all Documentation Let’s Encrypt uses the ACME protocol to verify that you control a given domain name and to issue you a certificate. To get a Let’s Encrypt certificate, you’ll need to choose a piece of ACME client software to use.The ACME clients …

Nginx:
Check registry images