Installation of Apache Tomcat 8.5 on Ubuntu 20.04

Step by step Installation of Apache Tomcat 8.5 on Ubuntu 20.04

For Installation of Apache Tomcat 8.5 do the following;

Step 1: For Installation of Apache Tomcat 8.5 Download the and extract the Tomcat package,

cd /opt

sudo wget http://mirrors.estointernet.in/apache/tomcat/tomcat-8/v8.5.50/bin/apache-tomcat-8.5.50.tar.gz

If the above mentioned link not working, visit Tomcat website and download the package.

sudo tar xvzf apache-tomcat-8.5.50.tar.gz

Step 2 : Rename folder “apache-tomcat-8.5.50” to “tomcat“

sudo mv apache-tomcat-8.5.50 tomcat

Step 3: Delete the Tomcat package file from /opt folder

sudo rm apache-tomcat-8.5.50.tar.gz

Open the following file, 

sudo leafpad /etc/profile

Setup environment variables

Environment variables to find JAVA.

Add following lines at the bottom of the file,

export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64

export CATALINA_HOE=/opt/tomcat

Running Tomcat automatically
You can set up to start the Tomcat server start automatically at the time of system turn on.

Open following file in a Terminal,

sudo vim /etc/init.d/tomcat

Add following lines in the file,

#!/bin/bash
### BEGIN INIT INFO
# Provides:        tomcat8
# Required-Start:  $network
# Required-Stop:   $network
# Default-Start:   2 3 4 5
# Default-Stop:    0 1 6
# Short-Description: Start/Stop Tomcat server
### END INIT INFO

PATH=/sbin:/bin:/usr/sbin:/usr/bin

start() {
 sh /opt/tomcat/bin/startup.sh
}

stop() {
 sh /opt/tomcat/bin/shutdown.sh
}

case $1 in
  start|stop) $1;;
  restart) stop; start;;
  *) echo "Run as $0 <start|stop|restart>"; exit 1;;
esac

save and close the file.

Apply the following commands too;

sudo chmod +x /etc/init.d/tomcat

sudo update-rc.d tomcat defaults

Start Tomcat server,

sudo service tomcat start

Now you can start and stop Tomcat server using the following commands;

sudo service tomcat start

sudo service tomcat stop

sudo service tomcat restart