CentOS7 Install Tomcat 8 complete steps

Original: Https://www.vultr.com/docs/how-to-install-apache-tomcat-8-on-centos-7

Apache Tomcat is an open source Web server specifically designed for Java and is widely used.
The following is a tutorial on installing Tomcat 8 in CENTOS7: system Requirements

1.centos7
2. Login non-root SSH account Step1 upgrade CentOS system

sudo yum install epel-release
sudo yum update-y && sudo reboot

Step2 Install Java

sudo yum install java-1.8.0-openjdk.x86_64

After the installation is complete, running java-version will output the following:

OPENJDK version "1.8.0_91"
openjdk Runtime Environment (build 1.8.0_91-b14) openjdk 64-bit
Server VM (Build 25.91 -B14, Mixed mode)

STEP3 New Tomcat dedicated user

sudo groupadd tomcat
mkdir/opt/tomcat sudo
useradd-s/bin/nologin-g tomcat-d/opt/tomcat Tomcat

Note that the user directory is/opt/tomcat Step4 download and install the latest version of Tomcat

CD ~
wget http://www-us.apache.org/dist/tomcat/tomcat-8/v8.0.33/bin/apache-tomcat-8.0.33.tar.gz
sudo tar- ZXVF apache-tomcat-8.0.33.tar.gz-c/opt/tomcat--strip-components=1

STEP5 permission Settings

Cd/opt/tomcat
sudo chmod-r tomcat.
sudo chgrp-r tomcat conf
chmod g+rwx conf
sudo chmod g+r conf/*
sudo chown-r tomcat Logs/temp/webapps /work/

Step6 Create systemd unit files for Tomcat

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

The contents are as follows:

[Unit]
Description=apache Tomcat Web Application Container
after=syslog.target network.target

[Service]
type= Forking

Environment=java_home=/usr/lib/jvm/jre
environment=catalina_pid=/opt/tomcat/temp/tomcat.pid
Environment=catalina_home=/opt/tomcat
Environment=catalina_base=/opt/tomcat
environment= ' catalina_opts=-xms512m-xmx1024m-server-xx:+ USEPARALLELGC '
environment= ' java_opts=-djava.awt.headless=true-djava.security.egd=file:/dev/./urandom '

execstart=/opt/tomcat/bin/startup.sh
Execstop=/bin/kill-15 $MAINPID

user=tomcat
group=tomcat

[Install]
wantedby= Multi-user.target

STEP7 Installation haveged

sudo yum install haveged
sudo systemctl start haveged.service
sudo systemctl enable Haveged.service

STEP8 start Tomcat and turn on the firewall

sudo systemctl start tomcat.service
sudo systemctl enable Tomcat.service

sudo firewall-cmd--zone=public-- Permanent--add-port=8080/tcp
sudo firewall-cmd--reload

Access http://[your-host-ip]:8080 Preview is OK. STEP9 Configure the Tomcat management interface

sudo vi/opt/tomcat/conf/tomcat-users.xml

Add an admin account to <tomcat-users ...>...</tomcat-users>:

<user username= "YourUserName" password= "YourPassword" roles= "Manager-gui,admin-gui"/>

And then restart Tomcat.

sudo systemctl restart Tomcat.service