A. Installation Docker-ce (installation documentation from Ali mirror sites http://u6.gg/sMVvC)
1. Install the necessary system tools: sudo yum -y install yum-utils device-mapper-persistent-data lvm2
2. Add the software source information: sudo yum-config-manager --add-repo https://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
3. Generate cache information: sudo yum makecache fast
4.安装Docker-ce：sudo yum -y install docker-ce
5. Turn IPV4 forwarding: vim /etc/sysctl.conf
1 net.ipv4.ip_forward=1
6. Create a json file accelerate image download speed: vim /etc/docker/daemon.json
1 { 2 "registry-mirrors": ["https://registry.docker-cn.com"] 3 }
7.启动Docker：systemctl start docker
8. Verify Docker information: docker info or docker --version
9.Docker need to start iptables to do port mapping service, but default firewalld in CentOS7 be managed, it could lead to the use of Docker's problem, you can do the following to install their own use iptables
- systemctl disable firewalld
- yum -y install iptables-services
- systemctl enable iptables
The basic use of two .Docker of:
1. Mirror specific operation instructions:
| docker images | Check local mirror |
| docker search image name | Mirror search resources (no image name / separator is generally mirrored top warehouse resources, there is / are generally separated by private enterprise warehouse or warehouse) |
| docker image pull mirror name: Label | Mirror Pull |
| docker image ls --no-trunc | View image details |
| docker rmi image name / id | Remove Mirror |
| docker load/save | Import / Export image file |
2. Specific container Options:
| start(-i/-a)/stop | Start (interactive mode / additional terminal) / stop the container |
| kill | Forced to stop container |
| run | After creating the container directly start |
| pause/unpause | Pause / Resume container |
| ps/container ls | View a list of running container |
| PS-A | See all the container list |
| rm | Delete container |
Where the parameters are used when creating the container run:
| -t | Program specified container terminal |
| -i | Interactive access |
| --name | Specified container name |
| --rm | Container automatically deleted when you stop |
| -d | Container running in the background |
| --network | Container designated network mode (default bridge) |