docker简易使用流程[0]

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本篇是docker常用命令的续篇

docker pull centos:centos7 #拉取镜像
docker run -it -d --name centos_test centos:centos7  /bin/bash 启动docker容器并后台运行
将docker端口和主机端口进行绑定

systemctl restart firewalld
docker run -it -d -p 80:80  centos:centos7  /bin/bash #绑定80端口到主机

#安装nginx
rpm -Uvh http://nginx.org/packages/centos/7/noarch/RPMS/nginx-release-centos-7-0.el7.ngx.noarch.rpm
yum -y install nginx

exit #此处会退出docker

docker ps #获取镜像id
docker start 91ae2a688fbe #重新启动daokcer镜像
docker exec -it 91ae2a688fbe  /bin/bash #本次退出不会停止容器
docker attach 91ae2a688fbe #获取镜像id
/usr/sbin/nginx -c /etc/nginx/nginx.conf 启动nginx
exit

效果验证：

补充说明：制作新的镜像

exit #退出docker容器
docker start 28f8859144fe  #启动docker容器
docker commit centos_test centos/nginx #更改容器
docker images centos/nginx #将容器转换成镜像
docker images centos/nginx #查询镜像

参考资料：

  1. https://cloud.tencent.com/developer/article/1667555