CentOS 7 x64 Docker preliminary interview

CentOS 7 x64 Docker use

CentOS 7 Installation Docker

Yum Search Docker to see if a Docker package is available

Yum Info Docker version is 1.3.2

Yum-y Install Docker installation Docker

Docker--version

Docker version 1.3.2, build 39fa2fa/1.3.2

Close Firewalld and Selinux

Service Docker start start

Systemctl Enable Docker Setup boot

Get the CentOS image

Docker pull Centos:latest Download the latest version of the image

Or

Docker pull centos:centos6 Download CENTOS6 image, etc.

To view the installation image

Docker images

REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE

CentOS 7 8efe422e6104 2 weeks ago 224 MB

CentOS centos7 8efe422e6104 2 weeks ago 224 MB

CentOS latest 8efe422e6104 2 weeks ago 224 MB

Run Shell Bash under Docker

Docker run-i-T <image id>/bin/bash//<image id> obtained via Docker images command, here is 510cf09a7986

Docker Run-i-T 8efe422e6104/bin/bash

Docker run-i-T <image id>/bin/bash//A container that runs this way, the container shuts down automatically after exiting, this way is to create a new container.

Docker run-i-t-v/opt/software:/opt/software <image id>/bin/bash//-v for Mount Local directory, first/opt/software to local directory: container behind Directory, directory does not exist will be created automatically

After execution, switch to

[Email protected]/]#

Installing SSH passwd under the container

Yum-y Install Openssh-server passwd

Modify the root password after the installation is complete

passwd

Then install the JDK and tomcat!!

The installation process is the same as when the physical machine installation process is complete

Back to physical machine

Docker ps-a to view a running Docker shell

CONTAINER ID IMAGE COMMAND CREATED STATUS

c6291c68a800 centos:7 "/bin/bash" 3 hours ago Exited (0) 3 minutes ago

Docker commit <container id> <name>//Modify mirror image name

Docker commit c6291c68a800 Tomcat//Save the name of this image as Tomcat

Docker images

REPOSITORY TAG IMAGE ID CREATED VIRTUAL SIZE

Tomcat-1 latest 983e0f7ea1fd Notoginseng minutes ago 779.8 MB

Docker Ps-a

CONTAINER ID IMAGE COMMAND CREATED STATUS

ED1EFC2C7D01 tomcat:latest "/bin/bash" 9 minutes ago Exited (0) 3 minutes ago

Docker start <container id>//<container id> get started with Docker ps-a command

Docker attach <container id>//return to this container

Docker start-i <container id>//boot this container and connect to this container

Start the container's SSH and map the port

Docker run-d-P 50001:22 <image id>/usr/sbin/sshd-d//<image id> for Docker images get the IMAGE ID you need to get Tomcat

Ssh-p 50001 127.0.0.1 into the container

Launch Tomcat view container IP

Back to physical machine

Curl-i Container ip:8080 See if it's OK

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Other Run commands

View Docker Run logs

Docker logs-f <container id>

Delete a container

Docker rm <container id>//<container id> via Docker ps-a command

Remove all containers

Docker RM $ (Docker ps-a-Q)

Delete an image

Docker rmi <image ID >//<image id> via Docker images command

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This article is from the "Learning Path" blog, please be sure to keep this source http://jicki.blog.51cto.com/1323993/1606232

CentOS 7 x64 Docker preliminary interview