RT 4.4.2 installation on CentOS 7.4.1708
NOTE: Original Document was for CentOS 7.2 and RT 4.4.1 with MySQL. Updated for Centos 7.4, RT 4.4.2 with PostgreSQL.
This document provides a quick methodology for installing RT 4.4.2 on CentOS/RHEL 7.4 for an internet-connected server. It should be suitable with minor modifications for installation on CentOS 6.9 also. Where necessary notes about the different install steps for CentOS/RHEL 6.9 are indicated below.
* Access to the internet and CentOS OS and update repositories is available. * Installation testing was completed using CentOS 7.4.1708 minimal boot ISO. * httpd (Apache) 2.4 and mod_fcgid Apache modules were used as the host environment. * Testing was conducted in both KVM and vSphere environments.
.8 are indicated below.
* Access to the internet and CentOS OS and update repositories is available. * Installation testing was completed using CentOS 7.2.1511 minimal boot ISO. * httpd (Apache) 2.4 and mod_fcgid Apache modules were used as the host environment. * Testing was conduct
- OS Installation and Initial Configuration
* (!) It is possible to automate the majority of this section using kickstart files.
- Install OS.
* Install the OS from ISO or PXE boot using your normal methodology.
- Install prerequisites for RT from OS repository.
yum install expat gd graphviz openssl expat-devel gd-devel graphviz-devel openssl-devel perl perl-CPAN wget screen mod_fcgid postgresql-server postgresql-devel yum groupinstall "Development Tools" "Web Server"
* NOTE: Instead of MySQL/MariaDB (as per the previous version of this document), we've switched to PostgreSQL to enable future full text search enablement.
- Patch OS
* Reboot the OS. * If you are continuing to next step immediately, you do not need to reboot.
- Disable selinux, by editing /etc/sysconfig/selinux:
* reboot the OS
- Adjust local services:
systemctl enable postgresql.service systemctl enable httpd.service systemctl start postgresql.service systemctl stop httpd.service
* CentOS 6.8:
chkconfig postgresql on chkconfig httpd on service postgresql start service httpd stop
* NOTE: httpd service needs to be stopped to allow RT web based configuration later.
- Configure Supporting Software
- Initialize the database:
- Configure postgres user password for postgresql:
sudo -u postgres psql ALTER USER postgres PASSWORD 'xxx'; \q
* NOTE: This step configures the internal DB postgres password for the local instance of postgresql
- Reconfigure postgres local user access to use md5 passwords (needed for RT). Edit /var/lib/pgsql/data/pg_hba.conf and modify the following line from peer to md5:
local all all md5
- Install CPAN minus.
curl -L http://cpanmin.us | perl - --sudo App::cpanminus
- Configure RT to use cpanm for fixdeps:
- RT Dependencies and Installation
- Get RT and extract to /tmp.
wget https://download.bestpractical.com/pub/rt/release/rt-4.4.2.tar.gz tar xvzf rt-4.4.2.tar.gz -C /tmp cd /tmp/rt-4.4.2
- Configure RT:
./configure --enable-graphviz --enable-gd --with-web-user=apache --with-web-group=apache
- Test the dependencies:
- Install the dependencies:
* NOTE: You may need to run the command more than once. On RHEL/CentOS 6.9, you may need to manually force the addition of the GD perl module via
cpanm GD --force, as there is a known issue with one of the built in tests for GD.
- Confirm dependencies:
- Install RT (default install is to the /opt/rt4 directory):
- RT Configuration using Web Interface
* (!) It is possible to complete this step by editing the RT files directly, and creating the database. Refer to the RT documentation for manual steps.
- Start the first run installation instance:
- Configure using the web interface.
* Access the server using a web browser to access the http port. * Configure the RT instance using the web interface. Refer to the RT documentation.
- Shutdown the rt-server instance.
* When completed Ctrl-C the rt-server instance started above.
- Configure RT:
* Modify RT to allow web access using a trailing /rt * (!) This is a personal preference. The web server example in the next section assumes /rt is used.
- Modify /opt/rt4/etc/RT_SiteConfig.pm. Add the following line:
Set( $WebPath, '/rt' );
- Configure web server
- Modify /etc/httpd/conf.d/fcgid.conf. Add:
- Create /etc/httpd/conf.d/rt.conf:
# RT4 configuration for Apache ### Optional apache logs for RT # Ensure that your log rotation scripts know about these files # ErrorLog /opt/rt4/var/log/apache2.error # TransferLog /opt/rt4/var/log/apache2.access # LogLevel debug AddDefaultCharset UTF-8 Alias /rt/NoAuth/images /opt/rt4/share/html/NoAuth/images/ ScriptAlias /rt /opt/rt4/sbin/rt-server.fcgi/ DocumentRoot "/opt/rt4/share/html" <Location /rt> # For Centos7/Apache 2.4 this line: Require all granted # For Centos6/Apache 2.2 these two lines: # Order allow,deny # Allow from all Options +ExecCGI AddHandler fcgid-script fcgi </Location>
- Start apache:
systemctl start httpd.service
* CentOS 6.8:
service httpd start
- Modify firewalld
* Complete your firewalld configuration to suite your local requirements. * (!) NOTE: Depending on install method, firewalld may not be installed. You can also stop it for testing with the
systemctl stop firewalldcommand. * On CentOS 6.8, you will need to modify your iptables configuration, or stop iptables using
service iptables stop
- Installation Complete
- Access RT
* Connect to RT using your web browser and start your site customization.