VPS Detail and Amazon Linux also we can use VPS.

Amazon Linux also we can use VPS

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1 Domain name server Mapping 

  If we get IP from godaddy then we need to ampp ip fromgodaddy

  prakash replace ip address

  

2 VPS purchase from hostinger

   

   providing indipendent virtual machine on hostinger 

   NGINX need to install and need to write script in nginx

   JAVA node JS MySQL

3 NGINX provide things like  

proxy api mapping request

SSL certificate provide by VPS and configure in nginx with proxy 

to hit url from frontend to backend url with SSL proxy.

nginx script use to navigate request and route to proper urls

4 MyApp.service

   this service is use to resatrt automatically by using command like java --jar

   this service have some configurations like given

   -------------4 MyApp.service-----------

   sudo nano /etc/systemd/system/myapp.service

   ---------------------

[Unit]

Description=Spring Boot API Service  # Providing description about application

After=network.target                

[Service]

User=myappuser   #User define spring profile you can give any name 

Group=myappuser  #Group define spring profile you can give any name 

WorkingDirectory=/opt/myapp/backend/target   #decide th epath where you want to store jar file

# Set environment file here

EnvironmentFile=/opt/myapp/.env              #This will decide which enviornment dynamically render by using given path 

ExecStart=/usr/bin/java -jar /opt/myapp/backend/target/AgriPowerStore-0.0.1-SNAPSHOT.jar  #To run jar file automatically

SuccessExitStatus=143

Restart=always

RestartSec=10

StandardOutput=file:/opt/myapp/logs/myapp.log       #to maintain logs with deploeyement time

StandardError=file:/opt/myapp/logs/myapp-error.log  #to maintain logs with deploeyement time

[Install]

WantedBy=multi-user.target

   4.1  .env          # this file should be hidden for security purpose

        root@srv673022:~# cat /opt/myapp/.env

DB_URL=jdbc:mysql://147.93.19.167:3306/agripower                  #this path will render dynamiccaly in dev-yml file

DB_USER=prakash

DB_PASS=AgriPower@123

SPRING_PROFILES_ACTIVE=dev      #This file decide which yml read at runtime /deploy time.

---------

4.2 datasource:

driver-class-name: com.mysql.cj.jdbc.Driver

url: ${DB_URL}

username: ${DB_USER}

password: ${DB_PASS}

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Deployemnet process of backend on VPS server with help of putty and WinSCP

--sudo lsof -i :8443

--sudo kill -9 3869547

--java -jar AgriPowerStore-0.0.1-SNAPSHOT

--opt/myapp/logs

--opt/myapp/backend/target/AgriPowerStore-0.0.1-SNAPSHOT.jar

--var/www/myapp/dist/frontend/dist/frontend/browser

----------------------NGINX Configuration-----------------------------------------

--cat /etc/nginx/sites-available/default

--nano /etc/nginx/sites-available/default

--sudo systemctl reload nginx

--sudo systemctl restart nginx

--https://prakash.agripower.store/swagger-ui/index.html#/