Centos 6.5 Docker Setup and configuration

• Mirrored Docker Run-i-T Centos/bin/bash is a container that uploads to the official hub is the mirror

• The image is saved in the/var/lib/docker directory

• The image is stored in the warehouse and then downloaded from the warehouse, and the warehouse is stored in registry, the Docker hub

• Process: Download the base image of CentOS (Lite), then add your own content, save it as a new image, run it up

Installing Docker

1. Installing the Epel extension source

RPM-IVH epel-release-6-5.noarch.rpm Vim/etc/yum.repos.d/epel.repo

2. Install and start Docker

Yum-y Install Docker-ioservice Docker start

Configure Docker

1. Get the CentOS base image

Docker Pull CentOS

2. Run the CentOS image

Docker Run-i-T Centos/bin/bash

Creating mirrors

1. Allow Docker to surf the internet

Vim/etc/default/docker "docker_opts="--dns 8.8.8.8--dns 8.8.4.4 "

2. Configure the Yum source

If you do not have a wget command, you need to install Yum

wget <epel address > RPM-IVH epel-release-6-5.noarch.rpm vim/etc/yum.repos.d/epel.repo

3. Exit the image and save

Exit #退出docker Commit < cfe3bf676fe7> <newimage> #保存

3. Create a Dockerfile file

mkdir static_web        #创建存储Dockerfile的目录cd  static_webvim  dockerfile    //Join    FROM          [centos]                       #指定一个基础镜像名称, subsequent operations are based on this image.     maintainer   zhaijunming  [email protected]  # Specify the image's author and contact information     RUN          yum    update                   #更新yum (Each RUN instruction creates a new mirror layer, and if the instruction executes successfully, it commits the mirror layer and then proceeds to the next instruction)    RUN           yum    -y    install  nginx    #安装nginx    run          echo  "Hello nginx"  >/usr/share/nginx/html/index.html    EXPOSE       80                              #应用程序将会使用这个端口. Docker does not automatically open this port for security reasons, you need to specify which port to use when using Docker run

4. Execution of Dockerfile #使用build

CD static_web #进入到Dockerfile所在目录docker build-t= "Jamtur01/httpdimage". #httpdimage是对dockerfile里指定的那个镜像做完操作后, the name of the new image that is saved

# # #Dockerfile执行过程

Docker running a container from the underlying image

• Execute a command to make changes to the container

• Perform a docker commit operation, save, submit a new mirror layer

Docker run a new container based on the mirror that was just submitted

• Execute the next instruction in Docker, knowing that all instructions are executed

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Common Command Collection

Docker version View Docker client, service-side release number, etc.

Docker search <image name> find mirror

Docker pull <image name> download image

Docker push <image name> upload image

Docker image-a List all mirrors

Docker PS display a running container

-A displays all containers, including non-running

-L Displays the last container created, including the one that is not running

Docker logs < container id> list the actions performed in this container

Docker RM < container > Delete this container

Docker RM ' Docker ps-a-l ' Remove all containers

Docker Start/stop/restart < container id> start/stop/restart container

Docker Attach < containers > re-attach to a running container

Docker run-i-T Centos/bin/bash use image to create a container, log in to/bin/bash

-T: Assigning a pseudo-tty to a container

Docker run-i-t-p

Docker build <path> look for a file named Dockerfile under path path, use this configuration to generate a new image file

Docker Build-< <dockerfile> using the specified dockerfile configuration file, Docker gets the content stdin, using this configuration to generate a new image

Docker Port <container> <container port> See which port is mapped to the specified port on the container, in fact Docker PS can also be seen

Docker Commit < container id> < new mirror name >

Docker images View all mirrors

This article is from the "Ming Linux blog" blog, be sure to keep this source http://zhaijunming5.blog.51cto.com/10668883/1696721

Centos 6.5 Docker Setup and configuration