docker小问题
1,一定要避免软件源重复配置
2,及时更新密钥
查看密钥状况
sudo apt-key list
导出并迁移 Docker CE 密钥
sudo apt-key export 密钥后8位 | sudo gpg –dearmour -o /etc/apt/trusted.gpg.d/docker-ce-archive.gpg
备份并删除旧的密钥环文件:
sudo mv /etc/apt/trusted.gpg /etc/apt/trusted.gpg.backup
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