Centos7 network configuration and docker installation, MySQL image pulling and docker basic commands

# Summary

1：mimi edition centos7 The network configuration

• First step : see VMnet8 Subnets of ip And subnet mask and gateway

• vi /etc/sysconfig/network-scripts/ifcfg-ens33

BOOTPROTO=static
  ONBOOT=yes
  IPADDR=192.168.137.3
  GATEWAY=192.168.137.2
  DNS1=192.168.137.2

• systemctl restart network Restart the network

• ip addr To view the

2：docker

Process level installation

a：docker install

• Install the necessary dependent packages

  yum install -y yum-utils device-mapper-persistent-data lvm2

• Set up Docker Installation source of standard release (aliyun)

  sudo yum-config-manager --add-repo http://mirrors.aliyun.com/docker-ce/linux/centos/docker-ce.repo
  sudo yum makecache fast

• Use the source of the development version to install the source

  These development repositories are contained in the above docker.repo In file , But it is disabled by default . You can enable them with a stable repository .

  yum-config-manager --enable docker-ce-edge

  Of course, you can disable it again

  yum-config-manager --disable docker-ce-edge

• install Docker Community version

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

• Verify whether the installation and service are normal

  docker run hello-world

b：mysql install

docker pull mysql:5.6

docker run -it --name mysql56 -p3307:3306 mysql:5.6

In this way, the data will not be saved

-i : Interactive mode

-t: terminal

–name: The name

Initialize database

• MYSQL_ROOT_PASSWORD（ Commonly used )

• MYSQL_ALLOW_EMPTY_PASSWORD

• MYSQL_RANDOM_ROOT_PASSWORD

  docker rm mysql56( Delete container )

  docker run -it --name mysql56 -p3307:3306 -e MYSQL_ROOT_PASSWORD=password mysql:5.6

3： Scripting language

a: Three startup methods of scripting language

• 1、source Command usage ： source FileName

  effect : At present bash Environment to read and execute FileName The command . The filename The file can be empty " Executive authority "

• 2、sh and bash Command usage ： sh FileName bash FileName

  effect : In the current corresponding bash Create a new child in the environment shell Read and execute FileName The command . The filename The file can be empty " Executive authority "

• 3、./ Command usage ： ./FileName

  effect : Open a sub shell To read and execute FileName In the command .
  The file must have executable permissions .

b:linux Script to start the project （.sh)

• name （ Make the naming readable ）

• Comments are ‘#’

  windows The next script file is CRLF , stay linux Next is LF

• ‘#!/bin/bash’ echo $shell

• Enter project directory cd /opt/project/hrproject

• Update project

  if( -a project) Judge whether the current project is

  git clone ------ Address

  fi

  cd hrproject

  git push

  mvn clean install

  pid=‘ps -ef | grep ping’

  kill -9 pid

  cd target

  nohup java -jar hrproject .jar(nohup– Change to background startup )& 2>1 null

c: Start the service

systemctl starter docker && systemctl enable docker

systemctl stay centos7 in

service stay centos6 in

4：git Pull items

opt/apps

opt/project

git clone Address （git The clone address of the project ）

maven clean install

java -jar demo-0.0.1-SNAPSHOT.jar

curl http://localhost:8080/login( Page html Code )

5：docker Basic commands

a:docker Basic commands

• start-up docker

  systemctl start docker

• close docker

  systemctl stop docker

• restart docker

  systemctl restart docker

b:docker Mirror command

• Check your server docker Image list

  docker images

• Search mirroring

  docker search Mirror name

• Pull the mirror image

  docker pull Mirror name

  docker pull mysql:5.6

• delete mirror

  docker rmi -f Mirror name / Mirror image ID

c:docker Container order

• Run a container

  docker run -it -d --name The alias to be taken Mirror name :Tag /bin/bash

• View the running container

  docker ps

• Stop container

  docker stop

• Delete container

  docker rm -f Container name / Containers ID

• How to enter the container — Recommended exec The way

  docker attach Container name / Containers ID

• Start the container

  docker start Containers ID/ Container name

  docker restart restart