1、要先安装docker-ce-selinux-17.03.2.ce，否则安装docker-ce会报错（仅阿里云安装docker前提）
2、安装依赖
$ sudo yum install -y yum-utils
device-mapper-persistent-data
lvm2
3、设置docker源
$sudo yum-config-manager
--add-repo
https://download.docker.com/linux/centos/docker-ce.repo
4、启动edge版 docker.repo源
$sudo yum-config-manager --enable docker-ce-edge
5、安装docker-ce版
$sudo yum install docker-ce-17.03.2.ce
6、启动docker
$sudo systemctl start docker
7、设置自动启动
$systemctl enable docker
8、镜像加速配置：
$sudo mkdir -p /etc/docker
$sudo tee /etc/docker/daemon.json <<-'EOF'
{
"registry-mirrors": ["https://088aunhx.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker
9、验证：执行hello-world
$docker run hello-world
补充：
调整docker0的网段方式：
sudo systemctl stop docker
通过命令route －n
查看docker0是否存在，若存在需先删除：
sudo ip link del docker0
vi /etc/docker/daemon.json 添加内容 "bip": "ip/netmask" [ 切勿与宿主机同网段 ]
如：{"bip":"172.21.100.1/24"}
Docker日志/垃圾文件清理：
1、执行docker命令：docker system prune
2、清理日志：
#!/bin/sh
echo "==================== start clean docker containers logs =========================="
logs=$(find /var/lib/docker/containers/ -name *-json.log)
for log in $logs
do
echo "clean logs : $log"
cat /dev/null > $log
done
echo "==================== end clean docker containers logs =========================="
docker rm -f -v $(docker ps -aq)
docker volume rm $(docker volume ls)
rm -rf /var/lib/etcd/
docker配置
vi /etc/docker/daemon.sjon
{
"bip":"172.21.100.1/24"
,"insecure-registries":["172.16.101.43:5000","172.16.101.49","docker.jieyue.com"]
,"registry-mirrors": ["http://172.16.101.49","http://docker.jieyue.com","https://088aunhx.mirror.aliyuncs.com"]
,"log-driver": "json-file"
,"log-opts": {
"max-size": "100m",
"max-file": "3"
}
,"max-concurrent-downloads": 10
,"max-concurrent-uploads": 10
,"storage-driver": "overlay2"
,"storage-opts": ["overlay2.override_kernel_check=true"]
}