Installing Odoo 8 on CentOS 6 with Python 2.7-Permanent

luobo2ni

　　This tutorial will walk you through the process of installing the
latest version of Odoo on CentOS 6. It is intended for those who might
not be experienced Linux administrators but who want to run their own
Odoo server. You can simply copy-paste the commands into your terminal
or SSH window.
　　The tutorial is fully tested on CentOS 6.5 but should work for any
6.x version. Please see my other tutorial for CentOS 7 instructions.
　　First we will install the PostgreSQL database server, then install
the necessary package dependencies. Next we will create a virtual Pythonenvironment (so we don’t interfere with the CentOS version) and installall the modules Odoo requires. Then it’s time to pull the latest Odoo
code from GitHub and create a CentOS 6 compatible init script. Finally
we will add the necessary firewall rules and connect to the server.

　　This tutorial assumes you have already performed a minimal install ofthe latest version of CentOS 6.5 on a server dedicated to just running
Odoo. It also assumes you will be running Odoo on the same server as thePostgreSQL database. You will need at least 1GB of available RAM for
lxml to install,>　　Odoo is a complicated installation with many dependencies and can be
quite resource intensive. I highly recommend you install on a server (orreal or virtual) that is dedicated to Odoo. Co-locating Odoo with
existing websites/applications is likely to cause problems at some
point.
1: Generate Odoo Passwords
　　Before starting installation we will generate two passwords. The
first line generates a strong random password for the odoo server to
access the PostgreSQL database that we will install. The second line is
the master password you will use to create the Odoo database after the
installation is complete. Don’t worry about these for now. After the
installation is complete you will find both these passwords in the Odoo
configuration file (/etc/odoo-server.conf).
　　Important: You must run these commands as the root user
ODOO_POSTGRES_PASSWORD=`< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-20};echo;`　　
ODOO_DB_ADMIN_PASSWORD=`< /dev/urandom tr -dc _A-Z-a-z-0-9 | head -c${1:-20};echo;`
2: Install and configure PostgreSQL
　　First will install the PostgreSQL version 9.3. Unfortunately the
CentOS 6 official respository only contains older versions, so we will
need to install directly from the PostgreSQL repositories. We use the
repository rather than simply downloading an RPM because it’s easier to
keep up to date with important security and maintenance updates. This
command will add the PostgreSQL repository to your server:
rpm -ivh http://yum.postgresql.org/9.3/redhat/rhel-6-x86_64/pgdg-centos93-9.3-1.noarch.rpm　　It’s important we exclude postgresql from the official CentOS
repository files, otherwise we will encounter problems when we run
updates:
sed -i 's/^gpgkey.*/&\nexclude=postgresql*/' /etc/yum.repos.d/CentOS-Base.repo　　Installing PostgreSQL and some associated libraries is now straightforward. We then need to initialise the database.
yum -y install postgresql93 postgresql93-server postgresql93-devel postgresql93-libs　　
service postgresql-9.3 initdb
　　Next we need to configure PostgreSQL so it will accept connections
using MD5 hashed passwords so it’s compatible with the Python modules:
sed -i "/^host/s/ident/md5/g" /var/lib/pgsql/9.3/data/pg_hba.conf　　Finally let’s add PostgreSQL to the list of services which will be
enabled at startup. We then start the PostgreSQL server and add the Odoouser with the password we generated in step 1.
/sbin/chkconfig --level 35 postgresql-9.3 on　　
service postgresql-9.3 start
　　

　　
echo -e "$ODOO_POSTGRES_PASSWORD\n$ODOO_POSTGRES_PASSWORD\n" | su - postgres -c "createuser --createdb --username postgres --no-createrole --no-superuser --pwprompt odoo"
3: Installing Python

　　Odoo requires a modern version of Python lot of additional libraries.Potentially these could conflict with the Python libraries supplied in
CentOS 6 and>　　First lets install some package dependencies:
yum -y install wget gcc zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libffi-devel libxslt libxslt-devel libxml2 libxml2-devel openldap-devel libjpeg-turbo-devel openjpeg-devel libtiff-devel git libpng libXext libz.so.1 xorg-x11-fonts-Type1 curl cabextract　　We also need the wkhtmltopdf package in order to generate PDF reportsin Odoo. This link is for the 64bit version of CentOS. For 32bit change‘amd64′ to ‘i386′ in the filename below.
rpm -ivh http://sourceforge.net/projects/wkhtmltopdf/files/0.12.2/wkhtmltox-0.12.2_linux-centos6-amd64.rpm/downloadln -s /usr/local/bin/wkhtmltopdf /usr/bin/　　Optional: You may wish to install Microsoft’s Core Fonts so they are
available when you generate reports in Odoo. First we need to install
some dependencies, then the msttcore-fonts-installer rpm downloads the
fonts from sourceforge, installs them and activates them on your CentOS
server.
　　For 64 bit (x86) CentOS installs ONLY:
rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/libmspack-0.4-0.1.alpha.el6.x86_64.rpmrpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/cabextract-1.3-3.el6.x86_64.rpmrpm -ivh https://downloads.sourceforge.net/project/mscorefonts2/rpms/msttcore-fonts-installer-2.6-1.noarch.rpm　　For 32 bit (i386) CentOS installs ONLY:
rpm -ivh http://dl.fedoraproject.org/pub/epel/6/x86_64/libmspack-0.4-0.1.alpha.el6.i686.rpmrpm -ivh http://dl.fedoraproject.org/pub/epel/6/i386/cabextract-1.3-3.el6.i686.rpmrpm -ivh https://downloads.sourceforge.net/project/mscorefonts2/rpms/msttcore-fonts-installer-2.6-1.noarch.rpm　　Now let’s download and install Python 2.7.8 from source. The first
command removes any existing python2.7 installs from previous attempts.
Note after compiling we use “altinstall” to prevent overwriting the
CentOS default python installation. We will do the Python build in the
root users home directory as some CentOS installs prevent the execution
of compiled C programs in the /tmp/ directory for security reasons (see
“noexec” in /etc/fstab):
rm -rf /usr/local/lib/python2.7　　
cd /root/
　　
wget http://python.org/ftp/python/2.7.8/Python-2.7.8.tgztar -xzf Python-2.7.8.tgz
　　
cd Python-2.7.8
　　
./configure --prefix=/usr/local --enable-shared LDFLAGS="-Wl,-rpath /usr/local/lib"
　　
make
　　
make altinstall
　　With Python successfully installed it’s time to add the Python
virtual environment (virtualenv) and the PIP module installation
utility:
wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py -O - | /usr/local/bin/python2.7　　
/usr/local/bin/easy_install-2.7 pip virtualenv
　　Next let’s create an Odoo user and setup the virtual environment.
adduser odoo　　

　　
DIR="/var/run/odoo /var/log/odoo /opt/odoo /opt/andromeda-addons"
　　
for NAME in $DIR
　　
do
　　
if [ ! -d $NAME ]; then
　　
   mkdir $NAME
　　
   chown odoo.odoo $NAME
　　
fi
　　
done
4: Installing Python modules in a virtual environment
　　Odoo requires a lot of Python modules to run. With the Python virtualenvironment successfully created we now need to add all the additional
modules.
　　Important note for WHM/cPanel users:If your hosting provider is using WHM/cPanel to manager your server,
you must enable compiler access for the odoo user otherwise the Python
and additional modules installation will fail. See here for instructions on how to enable compiler access. You can disable compiler access again after Odoo installation is completed.
　　Important: Commands in this section must be run as the odoo user
　　First let’s switch from root to the odoo user, then create a new virtual environment called odoo and activate it:
su - odoo　　

　　
/usr/local/bin/virtualenv --python=/usr/local/bin/python2.7 odoo
　　
source odoo/bin/activate
　　Before starting the module installation we need to add the path to
the PostgreSQL binaries, otherwise the PsycoPG2 module install will
fail:
export PATH=/usr/pgsql-9.3/bin:$PATH　　Now let’s install all the Python modules. Note we are replacing PIL
with pillow – it’s a better supporting fork of PIL and it plays nicely
with the location of the CentOS development libraries.
pip install http://download.gna.org/pychart/PyChart-1.39.tar.gzpip install babel　　
pip install docutils
　　
pip install feedparser
　　
pip install gdata
　　
pip install Jinja2
　　
pip install mako
　　
pip install mock
　　
pip install psutil
　　
pip install psycopg2
　　
pip install pydot
　　
pip install python-dateutil
　　
pip install python-openid
　　
pip install pytz
　　
pip install pywebdav
　　
pip install pyyaml
　　
pip install reportlab
　　
pip install simplejson
　　
pip install unittest2
　　
pip install vatnumber
　　
pip install vobject
　　
pip install werkzeug
　　
pip install xlwt
　　
pip install pyopenssl
　　
pip install lxml
　　
pip install python-ldap
　　
pip install decorator
　　
pip install requests
　　
pip install pillow
　　
pip install pyPdf
　　
pip install passlib
5: Installing Odoo 8 from GitHub
　　Now it’s finally time to install Odoo itself. We are going to
download the latest version of Odoo 8 from the GitHub repository. Note
that we are installing into the /opt directory so we can easily manage
the installation in a single location and keep it separate from the restof the operating system.
　　Important: These commands must be run as the odoo user
cd /opt　　
git clone https://github.com/odoo/odoo.git --branch 8.0
　　
chown -R odoo.odoo odoo
　　
exit
　　Let’s create a basic Odoo server configuration file. The passwords wecreated earlier will be automatically populated. Note I’ve also
disabled the various RPC modules for extra security as I don’t use them.I’ve also dialled back the logging so we only see warnings and fatal
errors. I’m located in the UK, so the timezone is set to Europe/London.
　　Important: All the following commands must be run as the root user
cat > /etc/odoo-server.conf << EOF　　
[options]
　　
; This is the password that allows database operations:
　　
admin_passwd = $ODOO_DB_ADMIN_PASSWORD
　　
; DATABASE OPTIONS
　　
db_host = localhost
　　
db_port = 5432
　　
db_user = odoo
　　
db_password = $ODOO_POSTGRES_PASSWORD
　　
; MISC SETTINGS
　　
addons_path = /opt/odoo/addons
　　
load = web
　　
timezone = Europe/London
　　
without-demo=all
　　
no-xmlrpc = True
　　
no-xmlrpcs = True
　　
no-netrpc = True
　　
; LOG SETTINGS
　　
logfile = /var/log/odoo/odoo-server.loglog_handler = werkzeug:WARNING
　　
log_level = warn
　　
no-logrotate = True
　　

　　
EOF
　　

　　
chown root.odoo /etc/odoo-server.confchmod 640 /etc/odoo-server.conf
　　I also like to enable logrotation using the built in CentOS tools so
the logs are managed in the same way as all the other applications.
cat > /etc/logrotate.d/odoo-server << EOF　　
/var/log/odoo/*.log {
　　
    copytruncate
　　
    missingok
　　
    notifempty
　　
}
　　
EOF
　　Next we create a script to easily start and stop the Odoo server. We
download a pre-created init script, then use a sed script to modify the
startup command so it plays nicely with the virtual Python environment
we created earlier.
wget -O /etc/init.d/odoo https://raw.githubusercontent.com/Johnzero/OE7/master/install/openerp-server.initsed -i "s/openerp/odoo/g" /etc/init.d/odoo　　
sed -i "s/OpenERP/Odoo/g" /etc/init.d/odoo
　　

　　
sed -i "s/\/usr\/bin\/setsid \/usr\/bin\/odoo-server/~\/odoo\/bin\/python \/opt\/odoo\/openerp-server/" /etc/init.d/odoo
　　

　　
chmod +x /etc/init.d/odoo
　　
/sbin/chkconfig --level 35 odoo on
　　The final step in this section is to add the necessary firewall
rules. The redirect command accepts connection on port 80 and redirects
them to the default Odoo port 8069. This avoids your users having to
remember to enter the port number each time.
/sbin/iptables -A INPUT -p tcp --dport 5432 -i lo -j ACCEPT -m comment --comment "Accept local connections to PostgreSQL"　　
/sbin/iptables -t nat -I PREROUTING -p tcp --dport 80 -j REDIRECT --to-port 8069 -m comment --comment="Redirect Odoo HTTP requests to 8069"
　　
/sbin/iptables -A INPUT -p tcp --dport 8069 -j ACCEPT -m comment --comment "Accept inbound Odoo connections"
　　
/etc/init.d/iptables save
6: Launching Odoo and logging in
　　To start Odoo, simply run the init script:
/etc/init.d/odoo start　　You should be able to open a browser and connect to your Odoo server IP address.
　　You can check the logfiles in /var/log/messages and /var/log/odoo/odoo-server.logto make sure everything started correctly. Note you can also use
“/etc/init.d/odoo restart” and “/etc/init.d/odoo stop” to restart and
stop Odoo as required.
tail -50f /var/log/odoo/odoo-server.log　　Remember you can find your database admin password in the odoo configuration file: /etc/odoo-server.conf
7: Updating Odoo
　　If you want to update the Odoo code to the latest version you can
easily do that by stopping the server then performing a “git pull”. Notethat you must only do the git pull as the odoo user.
/etc/init.d/odoo stop　　
su - odoo
　　
cd /opt/odoo
　　
git pull
　　
exit
　　
/etc/init.d/odoo start
　　I hope this guide helps you get Odoo 8 up and running on CentOS 6.5.
Let me know how you get on in the comment section, and also check out myother tutorials.