install-java-maven-tomacat-terraform

provider "aws" {
  region = "ap-south-1"  # Change to your desired region
}

resource "aws_instance" "java_app_instance" {
  ami           = "ami-03753afda9b8ba740"  # Amazon Linux 2 AMI (change as needed)
  instance_type = "t2.micro"  # Free tier eligible

  key_name = "ansible1"  # Replace with your key pair name

  # User data to install Java, Git, and clone the repository
  user_data = <<-EOF
              #!/bin/bash
              exec > /var/log/user-data.log 2>&1  # Redirect output to a log file
              set -x  # Enable debugging

              # Update the package repository
              yum update -y

              # Install Git
              yum install git -y

              # Switch to ec2-user and clone the repository
              if ! su - ec2-user -c "git clone https://github.com/Lipughadei/LoginWebApp.git /home/ec2-user/LoginWebApp"; then
                  echo "Git clone failed" >> /var/log/user-data.log
                  exit 1
              fi

              # Install Java, Maven, and wget
              yum install -y java-1.8.0-openjdk-devel maven wget

              # Set environment variables
              echo 'export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk' >> /home/ec2-user/.bash_profile
              echo 'export MAVEN_HOME=/usr/share/maven' >> /home/ec2-user/.bash_profile
              echo 'export CATALINA_HOME=/opt/tomcat' >> /home/ec2-user/.bash_profile
              echo 'export PATH=$PATH:$JAVA_HOME/bin:$MAVEN_HOME/bin:$CATALINA_HOME/bin' >> /home/ec2-user/.bash_profile
              source /home/ec2-user/.bash_profile

              # Change directory to the cloned repo and run Maven
              cd /home/ec2-user/LoginWebApp
              if ! mvn clean package; then
                  echo "Maven build failed" >> /var/log/user-data.log
                  exit 1
              fi

              # Install Tomcat
#              cd /opt
#              wget https://dlcdn.apache.org/tomcat/tomcat-9/v9.0.96/bin/apache-tomcat-9.0.96.tar.gz
 #             tar -xvzf apache-tomcat-9.0.96.tar.gz
  #            mv apache-tomcat-9.0.96 tomcat
   #           mv tomcat /opt
    #          chmod +x /opt/tomcat/bin/*.sh

#              # Start Tomcat
 #             /opt/tomcat/bin/startup.sh

              yum install -y wget
              wget https://dlcdn.apache.org/tomcat/tomcat-9/v9.0.97/bin/apache-tomcat-9.0.97.tar.gz
              tar xzf apache-tomcat-9.0.97.tar.gz
              mv apache-tomcat-9.0.97 tomcat
              mv tomcat /opt
              # Deploy the WAR file
              mv /home/ec2-user/LoginWebApp.war /opt/tomcat/webapps/
              # Start Tomcat
              chown -R ec2-user:ec2-user /opt/tomcat
              chmod +x /opt/tomcat/bin/startup.sh
              /opt/tomcat/bin/startup.sh

              # Deploy the .war file
              cp /home/ec2-user/LoginWebApp/target/LoginWebApp.war /opt/tomcat/webapps/

              # Ensure Tomcat starts on boot (optional)
              echo "[Unit]
              Description=Apache Tomcat Web Application Container

              [Service]
              Type=simple
              User=ec2-user
              Group=ec2-user
              Environment=JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk
              Environment=CATALINA_HOME=/opt/tomcat
              ExecStart=/opt/tomcat/bin/startup.sh
              ExecStop=/opt/tomcat/bin/shutdown.sh

              [Install]
              WantedBy=multi-user.target" > /etc/systemd/system/tomcat.service

              # Enable and start Tomcat service
              systemctl enable tomcat
              systemctl start tomcat
              EOF
  tags = {
    Name = "JavaAppInstance"
  }
}
resource "aws_security_group" "tomcat_sg" {
  name        = "tomcat_security_group"
  description = "Allow HTTP traffic"

  ingress {
    from_port   = 8080
    to_port     = 8080
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"] # Change to restrict access
  }

  ingress {
    from_port   = 22
    to_port     = 22
    protocol    = "tcp"
    cidr_blocks = ["0.0.0.0/0"] # Change to restrict SSH access
  }

  egress {
    from_port   = 0
    to_port     = 0
    protocol    = "-1"
    cidr_blocks = ["0.0.0.0/0"]
  }
}

output "instance_id" {
  value = aws_instance.java_app_instance.id  # Corrected reference
}

output "instance_public_ip" {
  value = aws_instance.java_app_instance.public_ip
}