docker安装

下载并安装

可参照官网步骤 查看

1. 如之前已安装过先删除

   sudo yum remove docker \
     docker-client \
     docker-client-latest \
     docker-common \
     docker-latest \
     docker-latest-logrotate \
     docker-logrotate \
     docker-engine
   

2. 添加docker yum源

   sudo yum install -y yum-utils
   sudo yum-config-manager \
     --add-repo \
     https://download.docker.com/linux/centos/docker-ce.repo
   

3. 安装docker

   sudo yum install -y docker-ce docker-ce-cli containerd.io
   

配置docker加速器

编辑 /etc/docker/daemon.json，文件不存在则新建

{
    "registry-mirrors": [
        "https://m2sku7ir.mirror.aliyuncs.com"
    ]
}

如果docker已启动，需要重新加载配置

sudo systemctl daemon-reload
sudo systemctl restart docker

设置开机启动

systemctl enable docker.service

警告处理

WARNING: IPv4 forwarding is disabled
WARNING: bridge-nf-call-iptables is disabled
WARNING: bridge-nf-call-ip6tables is disabled

vim /etc/sysctl.conf
===
net.ipv4.ip_forward=1
net.bridge.bridge-nf-call-iptables = 1
net.bridge.bridge-nf-call-ip6tables = 1
===
systemctl restart network
docker info