1, the configuration daemon.json (server)
Detecting whether the node is available: docker -H 10.8.200.133 info
-------------------------------------------------- ---------------------------- the following is the client machine to perform docker:
Docker node are mounted on the master. Also, more than one node and so on.
2375 open ports on the node, the command is as follows:
echo "OPTIONS='-Htcp://0.0.0.0:2375 -H unix:///var/run/docker.sock'" (这里是在客户端机器执行)
/etc/sysconfig/docker (这里是在客户端机器执行)
Insufficient permissions to perform: chmod 777 /etc/sysconfig/docker
再执行：/etc/sysconfig/docker
Adding key-value pairs in the /etc/docker/daemon.json
Each server only add their own IP information, such as current server IP is: 10.8.200.202, then add the following information
{
"hosts": ["tcp://10.8.200.202:2375", "unix:///var/run/docker.sock"]
}
1.2, before restarting Docker Docker selected closed container
$ docker ps // 查看所有正在运行容器
$ docker stop containerId // containerId 是容器的ID
$ docker ps -a // 查看所有容器
$ docker ps -a -q // 查看所有容器ID
$ docker stop $(docker ps -a -q) // stop停止所有容器
$ docker rm $(docker ps -a -q) // remove删除所有容器
$ docker images //查看PULL的镜像ID
$ docker rmi [image-id] // 删除对应的镜像文件
1.3, restart Docker
systemctl restart Docker
1.4, see Docker running state
service docker status
2. open port 2375 (server)
2.1, add port (open firewall ports)
firewall-cmd --permanent --zone=public --add-port=2375/tcp
firewall-cmd --reload
2.2, view the current firewall has open / filtered ports
firewall-cmd --permanent --zone=public --list-ports
2.3, turn off the firewall
systemctl stop firewalld.service
2.4, open the firewall command
systemctl start firewalld.service
systemctl status firewalld --查看防火墙状态;
systemctl start firewalld --开启防火墙
systemctl stop firewalld -- 关闭防火墙
docker -H 192.168.1.248 info