How docker nginx deploys multiple projects

Prerequisites

1. Docker has been installed on the local computer and server. You can download it on Google.

2. Already have an account on docker hub, register and send it Door:

3. You need to be familiar with docker and understand some instructions in dockerfile

Use dockerfile to make images

If this machine There is a project called web

Create a new dockerfile in the web root directory and write the following content

from nginx:1.13.6-alpine
label maintainer="lilywang <lilywang.cd@gmail.com>"

arg tz="asia/shanghai"

env tz ${tz}

run apk upgrade --update \
 && apk add bash tzdata \
 && ln -sf /usr/share/zoneinfo/${tz} /etc/localtime \
 && echo ${tz} > /etc/timezone \
 && rm -rf /var/cache/apk/*

copy dist /usr/share/nginx/html 

cmd ["nginx", "-g", "daemon off;"]

At this time, the file structure in the web is:

.
|____dockerfile
|____dist // 为项目打包后的文件
| |____index.html

Next, enter the web directory in bash

cd web

docker build -t lilywang711/web .

If you see the following in the print information, it means that the image has been built successfully

successfully built 4c050212ce0d
successfully tagged lilywang711/web: latest

You can also enter docker images to view the current image list

Then enter the command docker push lilywang711/web to The image just built is uploaded to docker hub so that we can pull the image on the server later.

If there are multiple projects that need to be deployed, just follow the above steps and repeat them. How many projects are there? Just build as many mirrors

Server-side deployment

Ssh log in to the server, create a new nginx folder in the current user directory (I am the root directory), and put it in it Create new nginx.conf
Write the following content in nginx.conf

user nginx;
worker_processes 2;
error_log /var/log/nginx/error.log warn;
pid  /var/run/nginx.pid;
events {
 use epoll;
 worker_connections 2048;
}
http {
 include /etc/nginx/mime.types;
 # include /etc/nginx/conf.d/*.conf;
 root /usr/share/nginx/html;
 index index.html index.htm;
 server {
  listen 80;
  server_name a.yourdomain.cn;
  location / {
  }
 }
 server {
  listen 80;
  server_name b.yourdomain.cn;
  location / {
   proxy_pass http://your_vps_ip:81;
  }
 }
 server {
  listen 80;
  server_name localhost;
  location / {
  }
 }
}

Next

Start docker systemctl start docker

Pull The two images just created and uploaded

docker pull lilywang711/web

docker pull lilywang711/web1

Enter The following command starts the container

docker run -itd --name web -p 80:80 -v /root/nginx/nginx.conf:/etc/nginx/nginx.conf lilywang711/web
// -i 交互模式运行容器, -t 为容器分配一个伪终端，-d 后台运行容器，可直接连写 -itd
// --name 是给该容器起个叫web的名字，方便辨识
// -p 是绑定端口 本机端口80:容器端口80
// -v 声明volume，意思是将容器中的/etc/nginx/nginx.conf 挂载到 宿主机里的/root/nginx/nginx.conf，以后配置nginx只需要修改/root/nginx/nginx.conf就行了

The same goes for the other lilywang711/web1 image, just change the port and name

docker run -itd --name web1 -p 81: 80 -v /root/nginx/nginx.conf:/etc/nginx/nginx.conf lilywang711/web1

At this time, enter docker ps to see these two The container is already running

Dockerized the project and deployed it on nginx.

Enter http://a.yourdomain.cn and http://b in the browser .yourdomain.cn you can see the effect, corresponding to the web and web1 projects in the local computer respectively

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