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Deploying a SpringBoot-React application on AWS EC2 using NGINX

At SSAFY, they gave us 1 EC2 instance (no AWS Console access either....) so I deployed in a similar manner to the previous time

  • Port 80 - React.js frontend serve
  • Port 8000 - SpringBoot backend serve


Frontend Deployment

  • The Frontend deployment is the same method as when deploying the Django-Vue project, so follow steps 1-9 from this link
    • Of course, when installing required packages, skip steps that are unrelated to this project, such as Python installation!


Backend Deployment


1. Install Java

1-1. Install

sudo apt-get install openjdk-11-jdk
  • This command also installs the openjdk-11-jre package which contains the Java runtime environment!

1-2. Check version

$ java -version
openjdk version "11.0.8" 2020-07-14
OpenJDK Runtime Environment (build 11.0.8+10-post-Ubuntu-0ubuntu118.04.1)
OpenJDK 64-Bit Server VM (build 11.0.8+10-post-Ubuntu-0ubuntu118.04.1, mixed mode, sharing)

2. Install Maven

2-1. Install Maven

sudo apt-get install maven

2-2. Install maven-wrapper

mvn -N io.takari:maven:wrapper

2-3. Build

Navigate to the location where mvnw is visible and execute the following command

./mvnw clean package
  • Executing this command cleans the previous build records of the mvnw file in the current directory and builds a new package
    • This takes a long time! FYI!
  • If you see the BUILD SUCCESS message, it was successful!

3. Execute the .jar file

3-1. Execute

Go into the target directory and execute the following command

nohup java -jar [generated jar file name] &
  • nohup
    • A program in Linux/Unix that runs shell script files (*.sh) in daemon mode
      • Keeps running even when the terminal session is disconnected
  • Adding & after the command means separating the current command from other commands!
    • You can execute other commands while the server is running from the jar file
    • The jar file runs in the background!

4. Grant MySQL external access permissions

mysql> CREATE USER 'root'@'[server address]' IDENTIFIED BY '[root account password]';

mysql> GRANT ALL PRIVILEGES ON . TO 'root'@'[server address]' WITH GRANT OPTION;

mysql> FLUSH PRIVILEGES;


+

Redeployment

As I wrote in the previous deployment notes, this is very inefficient!!! Planning to apply CI/CD!!!

-> Applied it!


When backend is modified


1. Check the running port

$ lsof -i :8000
COMMAND  PID   USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
java    3972 ubuntu   22u  IPv6 325640      0t0  TCP *:8000 (LISTEN)

2. Kill the port

sudo kill -9 [pid number confirmed above]

3. Pull the project via git

git pull origin master

4. build

./mvnw clean package

5. run

java -jar [generated jar file name] &


When frontend is modified

git pull origin master

cd frontend

npm run build

sudo service nginx restart