我这里安装Docker使用的是EPEL官方源,所以在上一篇文章我写了安装EPEL官方源的步骤。 1、安装: yum -y install docker-io 查看Docker版本: docker -v 显示结果如下: Docker version 1.9.1, build ab77bde/1.9.1 2、启动Docker: Docker作为服务启动 service docker start 3、查看已有镜像: docker images 我这里没有显示没有镜像,需要下载镜像。 4、搜索并下载需要的CentOS镜像: docker search centos 显示结果如下: INDEX NAME DESCRIPTION STARS OFFICIAL AUTOMATED docker.io docker.io/centos The official build of CentOS. 2329 [OK] docker.io docker.io/ansible/centos7-ansible Ansible on Centos7 74 [OK] docker.io docker.io/jdeathe/centos-ssh CentOS-6 6.7 x86_64 / CentOS-7 7.2.1511 x8... 25 [OK] docker.io docker.io/jdeathe/centos-ssh-apache-php CentOS-6 6.7 x86_64 / Apache / PHP / PHP M... 17 [OK] docker.io docker.io/nimmis/java-centos This is docker images of CentOS 7 with dif... 12 [OK] docker.io docker.io/million12/centos-supervisor Base CentOS-7 with supervisord launcher, h... 11 [OK] docker.io docker.io/consol/centos-xfce-vnc Centos container with "headless" VNC sessi... 9 [OK] docker.io docker.io/torusware/speedus-centos Always updated official CentOS docker imag... 8 [OK] docker.io docker.io/nickistre/centos-lamp LAMP on centos setup 4 [OK] docker.io docker.io/centos/mariadb55-centos7 3 [OK] docker.io docker.io/nathonfowlie/centos-jre Latest CentOS image with the JRE pre-insta... 3 [OK] docker.io docker.io/consol/sakuli-centos-xfce Sakuli end-2-end testing and monitoring co... 2 [OK] docker.io docker.io/blacklabelops/centos CentOS Base Image! Built and Updates Daily! 1 [OK] docker.io docker.io/darksheer/centos Base Centos Image -- Updated hourly 1 [OK] docker.io docker.io/timhughes/centos Centos with systemd installed and running 1 [OK] docker.io docker.io/yajo/centos-epel CentOS with EPEL and fully updated 1 [OK] docker.io docker.io/ericuni/centos centos dev 0 [OK] docker.io docker.io/grayzone/centos auto build for centos. 0 [OK] docker.io docker.io/grossws/centos CentOS 6 and 7 base images with gosu and l... 0 [OK] docker.io docker.io/januswel/centos yum update-ed CentOS image 0 [OK] docker.io docker.io/jsmigel/centos-epel Docker base image of CentOS w/ EPEL installed 0 [OK] docker.io docker.io/kz8s/centos Official CentOS plus epel-release 0 [OK] docker.io docker.io/labengine/centos Centos image base 0 [OK] docker.io docker.io/repositoryjp/centos Docker Image for CentOS. 0 [OK] docker.io docker.io/ustclug/centos USTC centos 0 [OK] 我这里使用centos7-ansible镜像,需要下载镜像: docker pull ansible/centos7-ansible 下载完成再看已经存在的镜像: docker images 显示结果如下: REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE docker.io/ansible/centos7-ansible latest 8bfa335400c7 27 hours ago 454.3 MB 5、使用镜像创建Docker容器: docker run -i -t 8bfa335400c7 /bin/bash 这里使用run命令,-i代表是交互的,-t代表是临时终端(伪终端),8bfa335400c7是镜像ID,即第四步中的IMAGE ID,使用/bin/bash,意思就是使用bash方式启动一个伪终端与容器进行交互,启动的时候会提示如下警告: Usage of loopback devices is strongly discouraged for production use. Either use `--storage-opt dm.thinpooldev` or use `--storage-opt dm.no_warn_on_loop_devices=true` to suppress this warning. 警告可以不用管,也可以去百度找解决办法,启动完毕之后就进入了docker容器。 退出容器: exit 或者: ctrl + d 退出之后可以查看所有使用过的容器: docker ps -a 查看正在运行的容器: docker ps 我这里因为启动的一个容器被关闭了,所以不使用-a命令时没有显示结果,使用-a命令会显示如下结果: CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES 20342f7db4a9 8bfa335400c7 "/bin/bash" 14 minutes ago Exited (0) 4 minutes ago mad_archimedes 6、重新进入指定容器: docker start 20342f7db4a9 使用start命令,后面的id值是上面查到的容器ID值(Container ID),启动之后使用如下命令进入: docker attach 20342f7db4a9 (责任编辑:IT) |