Difference between revisions of "CentOS7Install"

From Request Tracker Wiki
Jump to navigation Jump to search
(Updated document to reflect RT 4.4.2 and CentOS 7.4 (and 6.9) with PostgreSQL vice MariaDB)
m (Format corrections - moved export command to after the make configure command.)
Line 53: Line 53:
   \q</pre>
   \q</pre>
  * NOTE:  This step configures the internal DB postgres password for the local instance of postgresql
  * 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:
## Reconfigure postgres local user access
Configure PostgreSQL to use md5 passwords (needed for RT).  Edit /var/lib/pgsql/data/pg_hba.conf and modify the following line from peer to md5:
<code>local  all  all                md5</code>
<code>local  all  all                md5</code>
## Install CPAN minus.
## Install CPAN minus.
<pre>curl -L http://cpanmin.us | perl - --sudo App::cpanminus</pre>
<pre>curl -L http://cpanmin.us | perl - --sudo App::cpanminus</pre>
## Configure RT to use cpanm for fixdeps:
<pre>export RT_FIX_DEPS_CMD=/usr/local/bin/cpanm</pre>
# RT Dependencies and Installation
# RT Dependencies and Installation
## Get RT and extract to /tmp.
## Get RT and extract to /tmp.
Line 66: Line 65:
## Configure RT:
## Configure RT:
<pre>./configure --enable-graphviz --enable-gd --with-web-user=apache --with-web-group=apache</pre>
<pre>./configure --enable-graphviz --enable-gd --with-web-user=apache --with-web-group=apache</pre>
## Configure RT to use cpanm for fixdeps:
<pre>export RT_FIX_DEPS_CMD=/usr/local/bin/cpanm</pre>
## Test the dependencies:
## Test the dependencies:
<pre>make testdeps</pre>
<pre>make testdeps</pre>

Revision as of 22:16, 18 March 2018

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.

  1. Assumptions
* 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.

Installation Steps

.8 are indicated below.

  1. Assumptions
* 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
  1. OS Installation and Initial Configuration
* (!) It is possible to automate the majority of this section using kickstart files.
    1. Install OS.
* Install the OS from ISO or PXE boot using your normal methodology.
    1. 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.
    1. Patch OS
yum update
* Reboot the OS.
* If you are continuing to next step immediately, you do not need to reboot.
    1. Disable selinux, by editing /etc/sysconfig/selinux:

SELINUX=disabled

* reboot the OS
    1. 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.
  1. Configure Supporting Software
    1. Initialize the database:
postgresql-setup initdb
    1. 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
    1. Reconfigure postgres local user access

Configure PostgreSQL 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

    1. Install CPAN minus.
curl -L http://cpanmin.us | perl - --sudo App::cpanminus
  1. RT Dependencies and Installation
    1. 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
    1. Configure RT:
./configure --enable-graphviz --enable-gd --with-web-user=apache --with-web-group=apache
    1. Configure RT to use cpanm for fixdeps:
export RT_FIX_DEPS_CMD=/usr/local/bin/cpanm
    1. Test the dependencies:
make testdeps
    1. Install the dependencies:
make fixdeps
* 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.
    1. Confirm dependencies:
make testdeps
    1. Install RT (default install is to the /opt/rt4 directory):
 make install
  1. 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.
    1. Start the first run installation instance:
/opt/rt4/sbin/rt-server
    1. 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.
    1. Shutdown the rt-server instance.
* When completed Ctrl-C the rt-server instance started above.
  1. 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.
    1. Modify /opt/rt4/etc/RT_SiteConfig.pm. Add the following line:

Set( $WebPath, '/rt' );

  1. Configure web server
    1. Modify /etc/httpd/conf.d/fcgid.conf. Add:

FcgidMaxRequestLen 1073741824

    1. 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>
    1. Start apache:
systemctl start httpd.service
* CentOS 6.8: service httpd start
    1. 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 firewalld command.
* On CentOS 6.8, you will need to modify your iptables configuration, or stop iptables using service iptables stop
  1. Installation Complete
    1. Access RT
* Connect to RT using your web browser and start your site customization.