1. Create virtual machine

1. Installing Oracle VM visualbox

2. Install vagrant

3. Install mirror CS/7

   vagrant init centos/7 //Pull image
   vargant up // download
   

be careful:

Vagrant broke undefined conversionerror

reference resources

Original link: https://blog.csdn.net/weixin_44655599/article/details/112913219

2. Control it under command

Interrupt with CTRL + C

Log in using the vagrant ssh user

You can then use LINUX related commands

vagrant whoami // Current user
        ls/    // Current root directory
        exit   // sign out
        up // start-up

You must determine that a. vagrantFile exists

Pay attention to software conflicts

Starscream 360 net master needs attention

3. Bind host to map port

First, find the network card configuration of the virtual machine Virtual BOX through the command line console ipconfig

The ip address for IPv4 was found

Locate the hp/vagrantFile for vagrant

Found after opening the file

  config.vm.network "private_network", ip: "192.168.1.179

Replace the ip with the ip of the Virtual BOX

Restart the virtual machine vagrant reload after modification

WLAN is the module of windox

4. Install Docker into the virtual machine

What is Docker?

Virtualization container technology. Docker is based on image and can start various containers at the second level. Each container is a complete operating environment, and containers are isolated from each other.

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First step

Uninstall the previous installation first

sudo

As a super administrator

sudo yum remove docker \
                  docker-client \
                  docker-client-latest \
                  docker-common \
                  docker-latest \
                  docker-latest-logrotate \
                  docker-logrotate \
                  docker-engine

Step 2 set the storage warehouse

Set up repository
Install the yum utils package (provides the yum config manager utility) and set up a stable repository.

 sudo yum install -y yum-utils
 sudo yum-config-manager \
    --add-repo \
    https://download.docker.com/linux/centos/docker-ce.repo

Step 3 install Docker engine

Install the latest version of Docker Engine and containerd, or go to the next step to install a specific version:

$ sudo yum install docker-ce docker-ce-cli containerd.io

Step 4 start Docker

 sudo systemctl start docker

Step 5

Verify that the Docker Engine is installed correctly by running the Hello world image.

$ sudo docker run hello-world

Step 6: set startup and self startup

Start docker automatically under Linux

sudo systemctl enable docker

Step 7 configure image acceleration

First, open alicloud

Enter your own console

Then open the container image service under the first directory

Then, the directory 3 image tool - image accelerator

You can use the accelerator by modifying the daemon configuration file / etc/docker/daemon.json

• First create a directory mkdir

• Secondly, configure the image address

• Restart the docker background thread

• Restart the docker service

sudo mkdir -p /etc/docker 
sudo tee /etc/docker/daemon.json <<-'EOF'
{
  "registry-mirrors": ["https://leppzjul.mirror.aliyuncs.com"]
}
EOF
sudo systemctl daemon-reload
sudo systemctl restart docker

Step 8 Download MySQL redis

sudo docker pull mysql:5.7
sudo docker pull redis

Use sudo docker images to check the image

Create the relevant instance and match the port number

docker run -p 3306:3306 --name mysql \
-v /mydata/mysql/log:/var/log/mysql \
-v /mydata/mysql/data:/var/lib/mysql \
-v /mydata/mysql/conf:/etc/mysql \
-e MYSQL_ROOT_PASSWORD=root \
-d mysql:5.7

Using docker ps running commands

understand:

docker container file mount and port mapping

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Each docker run is to start a new container to isolate each other

first mysql adopt docker Isolate and put into a complete container
mysql: /usr/bin/mysql /usr/lib/mysql /etc/mysql /usr/share/mysql
 then etc Is the relevant configuration file under the configuration file
     log Is under the configured log file
     
     
docker run -p 3306:3306 --name mysql \ 
take linux3306 Port number mapped to windox 3306 port number under
-v /mydata/mysql/log:/var/log/mysql \ 

It can be understood as a shortcut
-v It is also called directory mount. This is the same file directory. You can see the relevant information externally
- Hang on etc log as well as lib mysql data 


-v /mydata/mysql/data:/var/lib/mysql \
-v /mydata/mysql/conf:/etc/mysql \

-e Is to change file parameters
-e MYSQL_ROOT_PASSWORD=root \
-d mysql:5.7

We can verify it

Enter the mysql container

-it interaction mode

docker exec -it mysql /bin/bash

It is equivalent to entering the mysql console

There will be on the left of the execution result root@xxxx address

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You can use ls / the entire directory structure

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You can use whereis mysql to verify

Enter the mysql conf folder and configure the internal code of mysql according to the format

[client]
default-character-set=utf8

[mysql]
default-character-set=utf8

[mysqld]
init_connect='SET collation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
skip-name-resolve

View the docker directory

$ docker inspect container_name | grep Mounts -A 20

lation_connection = utf8_unicode_ci'
init_connect='SET NAMES utf8'
character-set-server=utf8
collation-server=utf8_unicode_ci
skip-character-set-client-handshake
skip-name-resolve

see docker Change in directory

$ docker inspect container_name | grep Mounts -A 20