Installation and introduction of cloud native docker container [docker deployment of Web Applications & cloud native cornerstone]

One . Preface

1.1Docker What is it? ?

Docker It's an application package 、 distribution 、 Deployed tools . It is basically a lightweight virtual machine . There are only things we need in the virtual machine , Other superfluous things are necessary . Let's look at the picture below , Take a look at the comparison between it and a normal virtual machine ： as follows ：

1.2 pack 、 distribution 、 Deployment concept understanding

pack ： The compilation environment required for software development , rely on , Third party libraries , Pack them together , Make a bag . distribution ： You can put “” package ” Upload image warehouse , Others can easily access and install , Improved efficiency . Deploy ： No matter what operating system , As long as there is “ package ”, You can run it with a simple command , Automatically simulate the same environment , Very convenient .

1.3 advantage / solve the problem

Think of a thing , Before, when I was taking on outsourcing projects , Because it's taking over other people's projects , Because of the environment , It took more than ten days to run successfully , And after the development , Redeployment to the server is also a very serious problem , So that it can't be solved now bug. It's a headache, isn't it , If we adopt Docker Development and deployment . This problem doesn't exist .

advantage ： It ensures that the running environment on different machines is consistent , Will not appear on my machine, running normally , You have problems when the machine runs .

Important concepts ： Mirror image 、 Containers

Mirror image ： Similar to software installation package , It can be quickly spread and installed . Containers ： Status after software installation , Each software running environment is independent 、 Segregated , It's called a container .

Two . install Docker

2.1 install

We click on the link below , Enter the official , Download and install ：

​ ​ https://www.docker.com/products/docker-desktop ​​

Choose the appropriate version of the direct computer to install ->

Here is the installed desktop version . When the download is complete , Open the installation ：

Once installed , One thing to note ： You need to restart your computer after installation , Remember to save the file , I forgot to save and was forced to restart .

2.2 Error reporting solution ：

If you encounter the following errors , Please go to my home page to search for keywords to read this article to solve the problem ： The first mistake ：

WSL 2 installation is incomplete.

The second mistake ：

System.InvalidOperationException: Failed to set version to docker-desktop: exit code: -1

Search for keywords on my home page to read this article ：

      
      

       
       WSL 
       
       2 
       
       installation 
       
       is 
       
       incomplete.
       
       【BUG solve 】【Docker Original cornerstone of cloud 】
      
      
      
      

       
       
1.
      
      

Click in to read , The above two errors can be solved .

3、 ... and , Set domestic image source

3.1 Domestic image source address

<table> <thead> <tr> <th> Image accelerator </th> <th> Mirror accelerator address </th> </tr> </thead> <tbody> <tr> <td>Docker The official image of China </td> <td>https://registry.docker-cn.com</td> </tr> <tr> <td>DaoCloud Mirror station </td> <td>http://f1361db2.m.daocloud.io</td> </tr> <tr> <td>Azure China mirror </td> <td>https://dockerhub.azk8s.cn</td> </tr> <tr> <td> Mirror station of HKUST </td> <td>https://docker.mirrors.ustc.edu.cn</td> </tr> <tr> <td> Alibaba cloud </td> <td>https://<your_code>.mirror.aliyuncs.com</td> </tr> <tr> <td> Qiniuyun </td> <td>https://reg-mirror.qiniu.com</td> </tr> <tr> <td> Netease cloud </td> <td>https://hub-mirror.c.163.com</td> </tr> <tr> <td> Tencent cloud </td> <td>https://mirror.ccs.tencentyun.com</td> </tr> </tbody> </table>

3.2 Image acceleration configuration mode

After solving the above BUG after , We successfully opened Docker（ Here's the picture ）, We click settings ：

Replace the following code block with the box above .

      
      

       
       {
       
       
  
       
       "builder": {
       
       
    
       
       "gc": {
       
       
      
       
       "defaultKeepStorage": 
       
       "20GB",
       
       
      
       
       "enabled": 
       
       true
       
       
    }
       
       
  },
       
       
  
       
       "experimental": 
       
       false,
       
       
  
       
       "features": {
       
       
    
       
       "buildkit": 
       
       true
       
       
  },
       
       
  
       
       "registry-mirrors": [
       
       
    
       
       "https://docker.mirrors.ustc.edu.cn/",
       
       
    
       
       "https://1rlt72n0.mirror.aliyuncs.com",
       
       
    
       
       "https://registry.docker-cn.com",
       
       
    
       
       "http://hub-mirror.c.163.com",
       
       
    
       
       "https://docker.mirrors.ustc.edu.cn",
       
       
    
       
       "https://reg-mirror.qiniu.com",
       
       
    
       
       "https://dockerhub.azk8s.cn",
       
       
    
       
       "https://mirror.ccs.tencentyun.com"
       
       
  ]
       
       
}
      
      
      
      

       
       
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Click here to restart the application .

Four , ending

Here we are. , our Docker The deployment installation has been completed , In the next section we will record , How to use Docker Quick installation of software ！