docker安装

yum -y update
yum remove docker  docker-common docker-selinux docker-engine
yum install -y yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
yum install -y docker-ce docker-ce-cli containerd.io

一键安装
curl -fsSL https://get.docker.com | bash -s docker --mirror Aliyun

 

参考：

https://cloud.tencent.com/developer/article/1701451

 

Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Post "http://%2Fvar%2Frun%2Fdocker.sock/v1.24/auth": dial unix /var/run/docker.sock: connect: permission denied

chmod 666 /var/run/docker.sock

 

docker 版本升级后，运行以前存在的容器，报错Error response from daemon: unknown or invalid runtime name: docker-runc

# 搜索并替换所有容器配置中的旧运行时名称
grep -rl 'docker-runc' /var/lib/docker/containers/ | xargs sed -i 's/docker-runc/runc/g'

# 重启Docker服务
sudo systemctl restart docker

注：此操作会直接修改容器元数据，建议先备份 /var/lib/docker/containers 目录