The construction of Java Web Service based on Docker service

Guide

Recently thought our application needs to update the maintenance, the Android, the IOS, as well as the server side to update, is busy writing the code not to write the article. Our server is the Java SSH architecture, to the time also intends to switch to spring mvc+oauth2, today is free, we have to build a server environment before the people to see, research.

1, Docker is based on the application layer is based on a service software, at present it is used for building server development, learning Android\ios development of the use of, of course, not ruled out later can be used on the phone, so you have to learn a bit also no problem.

2, Docker is a software, through Docker, we can run a different container environment, is similar to the usual virtual machines, such as VMware, Virtual box, these VM software can be installed on the operating system, and then let us build a different operating system, Now that you have the virtual machine software, why use Docker? There are many reasons why, for developers, our answer is basically unified, I can quickly build a production environment on the server, and quickly replicate to other servers. I drew out the principles of Docker.

3. Docker extends the Linux container (Linux Containers), while LXC provides a unified set of APIs and tools to build and manage container, so Docker can take advantage of these advanced APIs to provide a lightweight virtual environment. A Docker container does not occupy a separate operating system as a virtual machine, but is based on the functionality provided by the operating system in an existing infrastructure, such as 100 containers, which use the same operating system's kernel; Let's talk about how to install the environment.

Installing Docker

According to what I have just analyzed, actually installs the software. Because different operating systems may be a little differently, this person can find information on their own, I this is the Ubuntu system, and note that the Linux operating system to 64-bit and also note that Docker needs to be in Linux Kernel 3.8 and above

$ sudo apt-get update$ sudo apt-get install docker.io$ sudo ln-sf/usr/bin/docker.io/usr/local/bin/docker$ sudo sed-i ' $acomplete-F _docker Docker '/etc/bash_completion.d/docker.io

Some of Docker's instructions View version Information

Docker version

Get Mirror

Docker Pull Ubuntu:latest

View local Mirrors

Docker images

To view the mirroring performance

Docker images Ubuntu

run Shell bash under a container

Docker Run-i-T Ubuntu/bin/bash

Stop Container

Docker stop

Download Image

Image we can go to the official website to see what images

Https://hub.docker.com/explore/

Here I take Ubuntu as an example:

• Pull represents the download,
• Ubuntu represents mirroring,
• ": Latest" means the last version, which is actually the latest version.

Docker Pull Ubuntu:latest

Have to say, the download super slow, sometimes may also not download, I also toss an afternoon to fix, the solution can be through the establishment of private libraries, Docker registry specific URLs:

Https://github.com/docker/docker-registry

Here for the time being not introduced, we can study on their own; after installation, enter:

Docker images

You will know if you have downloaded it locally, such as

Start Container

Join the shell and enter the following command

Docker Run-i-T Ubuntu:latest/bin/bash

At this point, you see the console has been replaced by the container command line. So we can install our environment.

Docker Ps–a               #列出所有的容器, including those that have exited

Exit Container

After entering the container, the operation inside is a new operation, we have to exit the direct input exit

The construction of Java Web Service based on Docker service