Docker入门-安装(一)

在CentOS 7.0下安装Docker, CentOS 7.0默认使用的是firewall作为防火墙

  • 查看防火墙状态
    firewall-cmd --state
  • 停止firewall
    systemctl stop firewalld.service
  • 启动firewall
    systemctl start firewalld.service
  • 禁止firewall开机启动
    systemctl disable firewalld.service

1.移除旧版本:

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

2.安装必要依赖:

yum install -y yum-utils device-mapper-persistent-data lvm2

3.更换国内镜像:

yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo

4.更新 yum 缓存:

yum makecache fast

5.安装 Docker-ce:

yum -y install docker-ce

6.启动 Docker 后台服务

systemctl start docker

7.测试运行 hello-world

docker run hello-world

8.运行交互式容器

root@root:~$ docker run -it ubuntu:15.10 /bin/bash
root@dc0050c79503:/#
  • -i:允许你对容器内的标准输入进行交互
  • -t:在新容器内指定一个伪终端或终端
  • -d: 后台启动容器
  • –rm:容器退出后立即删除容器。一般情况下,无需指定此参数,指定--rm可以避免浪费空间

退出容器交互命令 ctrl+d

9.后台运行容器

root@root:~$ docker run -d ubuntu:15.10 /bin/bash
root@dc0050c79503:/#

10.查看运行的容器

[root@localhost ~]# docker ps 
CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES
46353af5c8ce        ubuntu:15.10        "/bin/bash"         4 minutes ago       Up 4 minutes                            gracious_allen

11.停止容器

[root@localhost ~]# docker stop 46353af5c8ce
46353af5c8ce

12.查看本机镜像

[root@localhost ~]# docker image ls
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
zookeeper           latest              f336949ce7a1        6 weeks ago         148MB
hello-world         latest              4ab4c602aa5e        3 months ago        1.84kB
ubuntu              15.10               9b9cb95443b5        2 years ago         137MB
training/webapp     latest              6fae60ef3446        3 years ago         349MB

结构说明:

  • REPOSITORY:仓库名称
  • TAG:标签名称
  • IMAGE ID:镜像ID
  • CREATED:创建时间
  • SIZE:所占用的空间

列出指定镜像

[root@localhost ~]# docker image ls ubuntu
REPOSITORY          TAG                 IMAGE ID            CREATED             SIZE
ubuntu              15.10               9b9cb95443b5        2 years ago         137MB

13.删除镜像

[root@localhost ~]# docker image rm 6fae60ef3446

14.查找镜像

[root@localhost ~]# docker search ubuntu 
NAME                                                   DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
ubuntu                                                 Ubuntu is a Debian-based Linux operating sys…   8910                [OK]                
dorowu/ubuntu-desktop-lxde-vnc                         Ubuntu with openssh-server and NoVNC            253                                     [OK]
rastasheep/ubuntu-sshd                                 Dockerized SSH service, built on top of offi…   187                                     [OK]

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转载自www.cnblogs.com/linyufeng/p/10093568.html