Configure AWS Resources

1. Create an EC2 instance and select the necessary configurations based on the requirements of your applications.

2. Configure security group as follows:
Click on "Edit inbound rules" or "Add rule" to add the following rules:

1. HTTP (Port 80)
2. HTTPS (Port 443)
3. SSH (Port 22)
4. Tomcat (port 8080 )
5. MySQL (port 3306)

Configure MySQL

Wherever your MySQL database resides, configure the mysqld.cnf file to specify the bind address for EC2, create a user, grant them all privileges for CRUD operations, and ensure the password is secure.

Configure Java Application

Configure Spring applications application.properties/yml files to utilize the public IP of the EC2 instance and MySQL database username and password along with database name.

Connect to the instance :

Using either a web console or SSH using the command below.
ssh -i <path_to_private_key><username>@<public_ip_or_dns_of_ec2_instance>

Download and Install JDK :
1.For Amazon Linux 2023

sudo yum update -y
sudo yum install java-17-amazon-corretto -y

2.For Ubuntu

sudo apt update -y
sudo apt install openjdk-17-installer -y

3.For Windows

1.Install chocolatey package manger 

Set-ExecutionPolicy Bypass -Scope Process -Force; [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072; iex ((New-Object System.Net.WebClient).DownloadString('https://community.chocolatey.org/install.ps1'))

2.Install using chocolatey
choco install -y jdk17

Make a build file (jar) of a java Application

1.Using Gradle
gradle build

2.Using Maven
mvn clean package

3.Using Editor 
You can easily make build file using Intellij or sts tool 

Copy a jar file To some location

1. Copy a jar file to S3 bucket

2. Copy jar file from local machine to remote :
   

scp  -i {PATH_TO_YOUR_PRIVATE_KEY} {LOCAL_JAR_PATH} {USERNAME}@{REMOTE_SERVER_IP}:{REMOTE_JAR_PATH}

3.Push Code To Github and then by cloning repository make
jar file in ec2 instance.

By using any of the method copy a file to ec2-instance

Deploying a java Application

 1. Normal deployment:
java -jar /path/to/your/application.jar

 2. Background deployment (with nohup):
nohup java -jar /path/to/your/application.jar &

 3. Creating a systemd service:
sudo tee /etc/systemd/system/myapp.service << EOF
[Unit]
Description=My Spring Boot Application
After=syslog.target

[Service]
User=your_username  # Replace with the appropriate user
ExecStart=/usr/bin/java -jar /path/to/application.jar
SuccessExitStatus=143

[Install]
WantedBy=multi-user.target
EOF


> sudo systemctl start myapp
> sudo systemctl enable myapp

*Thank You 😊 *