TOMCAT SETUP:

Login to the Tomcat VM:

1. Login to the Tomcat vm

    vagrant ssh app01
   

2. Verify Hosts entry, if entries missing update them with IP and hostnames using cat /etc/hosts .

3. Update the OS to the latest patches using yum update -y .

4. Set Repository

   using yum install epel-release -y .

5. Install dependencies dnf -y install java-11-openjdk java-11-openjdk-devel .

   dnf install git maven wget -y

6. Change dir to /tmp

   cd /tmp/

7. Download the Tomcat package wget https://archive.apache.org/dist/tomcat/tomcat-9/v9.0.75/bin/apache-tomcat-9.0.75.tar.gz

8. Now extract it using tar xzvf apache-tomcat-9.0.75.tar.gz .

9. Add tomcat user useradd --home-dir /usr/local/tomcat --shell /sbin/nologin tomcat .

10. Copy data to tomcat home dir using cp -r /tmp/apache-tomcat-9.0.75/* /usr/local/tomcat/ .

11. Create Tomcat service file

    vi /etc/systemd/system/tomcat.service .

12. Update the file with the below content

    [Unit]
    Description=Tomcat
    After=network.target
    [Service]
    User=tomcat
    WorkingDirectory=/usr/local/tomcat
    Environment=JRE_HOME=/usr/lib/jvm/jre
    Environment=JAVA_HOME=/usr/lib/jvm/jre
    Environment=CATALINA_HOME=/usr/local/tomcat
    Environment=CATALINE_BASE=/usr/local/tomcat
    ExecStart=/usr/local/tomcat/bin/catalina.sh run
    ExecStop=/usr/local/tomcat/bin/shutdown.sh
    SyslogIdentifier=tomcat-%i
    [Install]
    WantedBy=multi-user.target
    

13. Reload the files systemctl daemon-reload .

14. Start and enable the service

    # systemctl start tomcat
    # systemctl enable tomcat
    

15. Enabling the firewall and allowing port 8080 to access the tomcat.

    # systemctl start firewalld
    # systemctl enable firewalld
    # firewall-cmd --get-active-zones
    # firewall-cmd --zone=public --add-port=8080/tcp --permanent
    # firewall-cmd --reload
    

CODE BUILD & DEPLOY (app01)

1. Download Source code

   git clone -b main https://github.com/saswatsam786/devops-project-local

2. Update configuration

    # cd vprofile-project
    # vim src/main/resources/application.properties
    # Update file with backend server details
   

3. Build code

1. mvn install run it.

2. Deploy artifact

    systemctl stop tomcat
   

3. Deploy artifact

    # systemctl stop tomcat
   

    # rm -rf /usr/local/tomcat/webapps/ROOT*
    # cp target/vprofile-v2.war /usr/local/tomcat/webapps/ROOT.war
    # systemctl start tomcat
    # chown tomcat.tomcat /usr/local/tomcat/webapps -R
   

Next, We WILL SETUP THE NGINX!!!