一、CentOS7安裝docker-ce
1.升級Linux所有包和系統內核
yum -y update
2.關閉SELinux
vi /etc/selinux/config
修改SELINUX=disabled
執行setenforce 0
3.安裝依賴包並添加docker安裝源
yum -y install yum-utils device-mapper-persistent-data lvm2
yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
或
yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
4.yum安裝docker-ce
yum -y install docker-ce
5.設置docker開機啓動並啓動docker
systemctl enable docker.service
systemctl start docker.service
6.驗證docker是否安裝成功
docker version
docker info
7.修改docker默認網橋地址
vi /etc/docker/daemon.json
{
"bip":"192.168.200.1/24",
"exec-opts": ["native.cgroupdriver=systemd"],
"storage-driver" : "overlay2",
"storage-opts": [ "overlay2.override_kernel_check=true" ],
"live-restore" : false
}
重啓docker
systemctl restart docker
8.添加docker鏡像下載加速
vi /etc/docker/daemon.json
{
"registry-mirrors": ["https://wghlmi3i.mirror.aliyuncs.com"],
"storage-driver" : "overlay2",
"storage-opts": [ "overlay2.override_kernel_check=true" ],
"live-restore" : false
}
或者
{
"registry-mirrors": ["https://registry.docker-cn.com"],
"storage-driver" : "overlay2",
"storage-opts": [ "overlay2.override_kernel_check=true" ],
"live-restore" : false
}
重啓docker
systemctl restart docker
二、Ubuntu 18.04安裝docker-ce
1.先卸載可能存在的舊版本
sudo apt-get remove docker docker-engine docker-ce docker.io
2.更新apt包索引
sudo apt-get update
3.安裝以下包以使apt可以通過HTTPS使用存儲庫(repository)
sudo apt-get install -y apt-transport-https ca-certificates curl software-properties-common
4.添加Docker官方的GPG密鑰
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
5.安裝stable存儲庫並更新apt包索引
# sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
# sudo apt-get update
6.查看docke-ce版本並安裝最新版docker-ce
# apt-cache madison docker-ce
# sudo apt-get install -y docker-ce
注:選擇要安裝的特定版本,第二列是版本字符串,第三列是存儲庫名稱,它指示包來自哪個存儲庫,以及擴展它的穩定性級別。要安裝一個特定的版本,將版本字符串附加到包名中,並通過等號(=)分隔它們:
sudo apt-get install docker-ce=<VERSION>
7.將自己的登錄賬號加入docker組,允許docker命令時免輸sudo
sudo usermod -aG docker 用戶名
8.驗證docker安裝結果
# systemctl status docker
# docker info
# docker version