create-tomcat-linux

Create tomcat instance on opt (You can change it from source code before you run it) folder with fix permissions on tomcat folders based on created user that created on linux servers (tested with ubuntu, parrot, redhat 8, centos7, centos8)

Usage

First you can download tomcat from this link choose your tomcat version and download it. You will find tomcat tar.gz file located under bin folder after you choose your tomcat version. To download it you can use wget command as example below

wget https://downloads.apache.org/tomcat/tomcat-9/v9.0.63/bin/apache-tomcat-9.0.63.tar.gz

To run this script you should run it as below

sh tomcat-server.sh {path-for-tomcat-zip-file} {user-name} 

Example on how to run

sh tomcat-server.sh apache-tomcat-9.0.63.tar.gz user1

apache-tomcat-9.0.63.tar.gz here is just example

Example output

== start work on tomcat on location apache-tomcat-9.x.xx.tar.gz with user user1 ==
== create group and user with the user user1 ==
== extract tomcat ==
== extract done ==
== fix tomcat permissions for user user1 ==
== create tomcat service ==
== try start tomcat service user1-tomcat.service located on /etc/systemd/system/user1-tomcat.service ==
check tomcat service status

● user1-tomcat.service - user1 Apache Tomcat Web Application Container
   Loaded: loaded (/etc/systemd/system/user1-tomcat.service; disabled; vendor preset: disabled)
   Active: active (running) since Sat 2022-05-14 18:52:25 GMT; 2s ago
  Process: 3395134 ExecStart=/opt/user1-tomcat/bin/startup.sh (code=exited, status=0/SUCCESS)
 Main PID: 3395141 (java)
    Tasks: 32 (limit: 37060)
   Memory: 136.5M
   CGroup: /system.slice/user1-tomcat.service
           └─3395141 /usr/lib/jvm/jre/bin/java -Djava.util.logging.config.file=/opt/user1-tomcat/c>

May 14 18:52:25 instance-20220423-0021 systemd[1]: Starting user1 Apache Tomcat Web Application Co>
May 14 18:52:25 instance-20220423-0021 systemd[1]: Started user1 Apache Tomcat Web Application Con>
== finished create apache-tomcat-9.x.xx.tar.gz tomcat on /opt/user1-tomcat with user user1 ==

Informations to know

Tomcat service path /etc/systemd/system/user1-tomcat.service

Tomcat path /opt/user1-tomcat

After script run it will try to start tomcat service so if 8080 is reserved on your server tomcat won't start in this case and start service will fail because of the port reservation. You will need to change port number in tomcat and try to start service again.

Tomcat server port located on /config/server.xml file under tomcat folders.

To start service you will need to run below command by root user or you can sudo it.

systemctl start user1-tomcat.service

Tips tricks

Service take any jvm args like below

-Xms512M -Xmx1024M -XX:MaxDirectMemorySize=512M -server -XX:+UseParallelGC

Lets describe them may be you need to change them or add another on your environment.

For -Xms512M : specifies the initial memory allocation pool.

-Xmx1024M : specifies the maximum memory allocation pool for a Java Virtual Machine (JVM).

-XX:MaxDirectMemorySize=512M : the limit on memory that can be reserved for all Direct Byte Buffers.

-XX:+UseParallelGC : will turn on the parallel garbage collection.

Environments and versions

Linux environments that this scripts tested with is

• Ubuntu, Ubuntu server
• Centos 7 & 8
• Parrot
• Redhat 8

and tomcat versions is

• tomcat 7
• tomcat 8
• tomcat 9
• tomcat 10

Contributing

Contributions are always welcome!

Please make sure to update README as appropriate.

License

Apache 2.0