We like to setup Odoo 9, 10 and 11 on the same server. Odoo 9 and 10 are running only on Python 2 while Odoo 11 is running only on Python 3. How can both Versions been setup using virualenv on an Ubuntu 17.10 server where Python 3.6 is the default Python version.

Can anybody of that community point us to a tutorial or can let us know a step by step guide? We searched already on Google but weren't able to find a solution. We like to test out Odoo 11CE while still being able to run Odoo 9 CE and 10 CE on the same server as they still provide much more modules and themes for customers.

We read here http://joebergantine.com/articles/installing-python-2-and-python-3-alongside-each-ot/ that it is possible to get both on one server running but we struggle to get that done with Odoo 9, 10 and 11.

We installed a virtualenv for Python 2 and one for Python 3

We call Odoo 9 and Odoo 10 accordingly in etc/intit.d on Ubuntu 17.10 i.e. with

etc/init.d/odoo9-server

#!/bin/sh
### BEGIN INIT INFO
# Provides: odoo9-server
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Enterprise Business Applications
# Description: ODOO Business Applications
### END INIT INFO
PATH=/bin:/sbin:/usr/bin 
VIRTENV=/home/odoo9/odoo-9.0 
NAME=odoo9-server 
DESC=ODOO9-SERVER
# Specify the daemon path for Odoo server.
DAEMON=/home/odoo9/o-src/server/openerp-server
# Specify the Odoo Configuration file path.
CONFIGFILE="/etc/odoo/odoo9-server.conf
# Specify the user name (Default: odoo).
USER=odoo9
# pidfile PIDFILE=/var/run/${NAME}.pid
# Additional options that are passed to the Daemon.
DAEMON_OPTS="-c $CONFIGFILE"
[ -x $DAEMON ] || exit 0
[ -f $CONFIGFILE ] || exit 0 checkpid() {
[ -f $PIDFILE ] || return 1 pid=`cat $PIDFILE`
[ -d /proc/$pid ] && return 0 return 1
}
case "${1}" in start)
echo -n "Starting ${DESC}: "
start-stop-daemon --start --quiet --pidfile ${PIDFILE} --chuid ${USER} --background --make-pidfile --startas /bin/bash -- -c "${VIRTENV} ${DAEMON} ${DAEMON_OPTS}"
echo "${NAME}."
;;
 stop)
echo -n "Stopping ${DESC}: "
start-stop-daemon --stop --quiet --pidfile $PIDFILE --oknodo echo "${NAME}."
;;
 restart|force-reload)
echo -n "Restarting ${DESC}: "
start-stop-daemon --stop --quiet --pidfile $PIDFILE --oknodo sleep 1 start-stop-daemon --start --quiet --pidfile ${PIDFILE} --chuid ${USER} --background --make-pidfile --startas /bin/bash -- -c "${VIRTENV} ${DAEMON} ${DAEMON_OPTS}"
echo "${NAME}."
;; *)
N=/etc/init.d/$NAME echo "Usage: $NAME {start|stop|restart|force-reload}" >&2 exit 1
;;
esac 
exit 0

Odoo11 we call with:

etc/init.d/odoo11-server

#!/bin/sh
### BEGIN INIT INFO
# Provides: odoo11-server
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Should-Start: $network
# Should-Stop: $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Name: Odoo start/stop script for Ubuntu
# Description: Using this script, we can start/stop/restart
# or check status of odoo server.
### END INIT INFO
PATH=/bin:/sbin:/usr/bin 
VIRTENV=/home/odoo11/odoo-11.0 
NAME=odoo11 
DESC=ODOO11-SERVER
# Specify the daemon path for Odoo server.
DAEMON=/home/odoo11/o-src/server/odoo-bin
# Specify the Odoo Configuration file path.
CONFIGFILE="/etc/odoo/odoo11-server.conf"
# Specify the user name (Default: odoo).
USER=odoo11
# pidfile PIDFILE=/var/run/$NAME.pid # pidfile
# Additional options that are passed to the Daemon.
DAEMON_ARGS="-c $CONFIGFILE"
display() {
 RED=$(tput setaf 1)
 GREEN=$(tput setaf 2)
 NORMAL=$(tput sgr0)
 col=$(tput cols)
case "$#" in
  1)
   if [ $1 -eq 0 ] ; then
    printf '%s%*s%s' "$GREEN" $col "[ OK ] " "$NORMAL"
   else
    printf '%s%*s%s' "$RED" $col "[FAIL] " "$NORMAL"
   fi
   ;;
  2)
   if [ $1 -eq 0 ] ; then
    echo "$GREEN* $2$NORMAL"
   else
    echo "$RED* $2$NORMAL"
   fi
   ;;
  *)
   echo "Invalid arguments"
            exit 1
            ;;
esac
}
if ! [ -x $DAEMON ] ; then
 echo "Error in ODOO Daemon file: $DAEMON"
 echo "Possible error(s):"
 display 1 "Daemon File doesn't exists."
 display 1 "Daemon File is not set to executable."
 exit 0;
fi if ! [ -r $CONFIGFILE ] ; then
 echo "Error in ODOO Config file: $CONFIGFILE"
 echo "Possible error(s):"
 display 1 "Config File doesn't exists."
 display 1 "Config File is not set to readable."
 exit 0;
fi if ! [ -w $PIDFILE ] ; then
 touch $PIDFILE || echo "Permission issue: $PIDFILE" && exit 1
 chown $USER: $PIDFILE fi
# Function that starts the daemon/service do_start() {
 echo $1
 check_status
 procs=$?
 if [ $procs -eq 0 ] ; then
    start-stop-daemon --start --quiet --pidfile ${PIDFILE} \
               --chuid ${USER} --background --make-pidfile \
               --exec ${DAEMON} -- ${DAEMON_ARGS}
   return $?
 else
  detailed_info "${DESC} is already Running !!!" $procs
  exit 1
 fi
}
# Function that stops the daemon/service do_stop() {
 echo $1
 check_status
 if [ $? -ne 0 ] ; then
    start-stop-daemon --stop --quiet --pidfile ${PIDFILE}
   return $?
 else
  display 0 "${DESC} is already Stopped. You may try: $0 force-restart"
  exit 1
 fi
}
get_pids(){
 pids=$(ps -Ao pid,cmd | grep $DAEMON | grep -v grep | awk '{print $1}')
 return $pids
}
# Function that checks the status of daemon/service check_status() {
 echo $1
 # start-stop-daemon --status --pidfile ${PIDFILE}
 status=$(ps -Ao pid,cmd | grep $DAEMON | grep -v grep | awk '{print $1}' | wc -l)
    return $status
}
# Function that forcely-stops all running daemon/service force_stop() {
 echo $1
 pids=$(ps -Ao pid,cmd | grep $DAEMON | grep -v grep | awk '{print $1}')
 if [ ! -z "$pids" ] ; then
  kill -9 $pids
 fi
 return $?
}
detailed_info() {
 procs=$2
 if [ $procs -eq 1 ] ; then
  display 0 "$1"
  echo "FINE, ${procs} ${DESC} is Running."
  echo "Details :"
  pid=`cat $PIDFILE`
  echo "Start Time : $(ps -p $pid -wo lstart=)"
  echo "Total UpTime: $(ps -p $pid -wo etime=)"
  echo "Process ID : ${pid}"
  echo ""
 else
  display 1 "WARNING !!!"
  display 1 "${procs} ${DESC}s are Running !!!"
  pids=$(ps -Ao pid,cmd | grep $DAEMON | grep -v grep | awk '{print $1}')
  echo "Details :"
  echo -n "Process IDs : "
  echo $pids
  # echo $pids | tr ' ' ,
  echo "In order to fix, Hit command: $0 force-restart"
  echo ""
 fi
}
case "$1" in
    start)
    do_start "Starting ${DESC} "
    display $?
    ;;
  stop)
    do_stop "Stopping ${DESC} "
    display $?
    ;;
  status)
    check_status "Current Status of ${DESC}:"
    procs=$?
    if [ $procs -eq 1 ] ; then
     detailed_info "RUNNING" $procs
    elif [ $procs -eq 0 ] ; then
     display 1 "STOPPED"
    else
     detailed_info "" $procs
    fi
    ;;
  restart|reload)
    do_stop "Stopping ${DESC} "
    display $?
    sleep 1
    do_start "Starting ${DESC} "
    display $?
    ;;
  force-restart)
    force_stop "Forcely Restarting ${DESC} "
    sleep 1
    do_start "Starting ${DESC} "
    display $?
    ;;
  force-stop)
    force_stop "Forcely Stopping all running ${DESC} "
    display $?
    ;;
  cs)
    ps -Ao pid,cmd | grep $DAEMON | grep -v grep | awk '{print $1}' | wc -l
    ;;
  *)
    display 1 "Usage: $0 {start|stop|restart/reload|status|force-restart|force-stop}"
    exit 1
    ;;
esac
exit 0 

The configuration files for both versions are more or less the same besides their specific paths for i.e. Odoo 9 (odoo9 - 9700) and Odoo 10 (odoo10 - 9800) and Odoo 11 (odoo11 - 9900) accordingly (each on its own ports)

[options]
# Addons Path addons_path=/home/odoo9/o-src/server/addons
# This is the password that allows database operations:
admin_passwd = OURPASSWORD 
auto_reload = False 
csv_internal_sep = ,
# Data Directory data_dir=/home/odoo9/o-data/.local/share/Odoo
#dbfilter = .* ;will show database selector if there are more than one database i.e. #dbfilter=odoo9.tld
#dbfilter = ^%d$ ;select database automatically by first subdomain (www is ignored). E.g. http://my.portal.example.com and http://www.my.portal.example.com will show database "my"
dbfilter = ^%h$ ;select database automatically by domain. E.g. http://portal.example.com will show "portal.example.com" database
# Database configuration 
db_host = False 
db_maxconn = 64 
db_name = False 
db_password = False 
db_port = False 
db_template = template1 
db_user = odoo9
debug_mode = False demo = {}
email_from = False
#import_partial = /opt/odoo/.local/share/User/import/odoo.import.temp ;needed for long-running data imports import_partial = /home/odoo9/o-data/.local/share/User/import/odoo.import.temp
# Workers and timeouts workers = 3 limit_memory_hard = 25000000000 limit_memory_soft = 24000000000 limit_request = 8192 limit_time_cpu = 10800 limit_time_real = 14400 list_db = True
# uncomment below to activate debug logs - deactivate and set to warning later log_db_level = warning log_handler = ['["[\':DEBUG\']"]']
log_level = debug
# should be set in run command (i.e. via --logfile)
logfile = /var/log/odoo/odoo9-server.log 
logrotate = True
# Ports and more login_message = False longpolling_port = 9701 max_cron_threads = 3 netrpc = False netrpc_interface =
netrpc_port = 9703 
osv_memory_age_limit = 12.0 
osv_memory_count_limit = False 
pg_path = None 
pidfile = False
# Is it behind a HTTP reverse proxy?
proxy_mode = False
reportgz = False
#secure_cert_file = /etc/nginx/XXXX.crt
#secure_pkey_file = /etc/nginx/XXXX.key
server_wide_modules = None 
smtp_password = GiveMeYourPassBaby ;False 
smtp_port = 465 ;25 
smtp_server = stmp.example.com ;localhost 
smtp_ssl = True ;False 
smtp_user = mail@example.com ;False
static_http_document_root = None 
static_http_enable = False 
static_http_url_prefix = None
syslog = False
test_commit = False 
test_enable = False 
test_file = False 
test_report_directory = False
timezone = False translate_modules = ['all']
unaccent = False without_demo = False
xmlrpc = True xmlrpc_interface =
xmlrpc_port = 9700 
xmlrpcs = True xmlrpcs_interface =
xmlrpcs_port = 9702 

All ODOO versions use each an Apache Proxy

<VirtualHost *:80>
 SuexecUserGroup "#1002" "#1002"
 ServerAdmin webmaster@odoo9.tld
 ServerName odoo9.tld
 ServerAlias www.odoo9.tld
 DocumentRoot /home/odoo9/domains/odoo9.tld/public_html
 ErrorLog /var/log/virtualmin/odoo9.tld_error_log
 LogLevel warn
 CustomLog /var/log/virtualmin/odoo9.tld_access_log combined
 ScriptAlias /cgi-bin/ /home/odoo9/domains/odoo9.tld/cgi-bin/
 DirectoryIndex index.html index.htm index.php index.php4 index.php5 index.php7
 <Directory /home/odoo9/domains/odoo9.tld/public_html>
  Options -Indexes +IncludesNOEXEC +SymLinksIfOwnerMatch +ExecCGI
  order allow,deny
  allow from all
  AllowOverride All Options=ExecCGI,Includes,IncludesNOEXEC,Indexes,MultiViews,SymLinksIfOwnerMatch
  Require all granted AddType application/x-httpd-php .php AddHandler fcgid-script .php7 AddHandler fcgid-script .php AddHandler fcgid-script .php7.0 FCGIWrapper /home/odoo9/domains/odoo9.tld/fcgi-bin/php7.0.fcgi .php7 FCGIWrapper /home/odoo9/domains/odoo9.tld/fcgi-bin/php7.0.fcgi .php FCGIWrapper /home/odoo9/domains/odoo9.tld/fcgi-bin/php7.0.fcgi .php7.0
 </Directory>
 <Directory /home/odoo9/domains/odoo9.tld/cgi-bin>
  allow from all
  AllowOverride All Options=ExecCGI,Includes,IncludesNOEXEC,Indexes,MultiViews,SymLinksIfOwnerMatch
  Require all granted
 </Directory>
 <IfModule mod_rewrite.c>
  RewriteEngine On
  # Permanent redirect (301 HTTP) if no canonical domain name
  RewriteCond %{HTTP_HOST} !^odoo9.tld
  RewriteRule ^/(.*)$ http://odoo9.tld/$1 [R=301,NE,L]
  # Redirect 301 to HTTPS
  RewriteCond %{HTTPS} !=on
  RewriteRule ^/?(.*) https://%{SERVER_NAME}/$1 [R=301,NE,L]
 </IfModule>
RemoveHandler .php7 RemoveHandler .php RemoveHandler .php7.0 FcgidMaxRequestLen 1073741824
 <Location "/" >
  Order deny,allow
  Deny from all
  Allow from all
 </Location>
IPCCommTimeout 241
</VirtualHost>
<VirtualHost 123.123.123.123:443>
 SuexecUserGroup "#1002" "#1002"
 ServerAdmin webmaster@odoo9.tld
 ServerName odoo9.tld
 ServerAlias www.odoo9.tld
 DocumentRoot /home/odoo9/domains/odoo9.tld/public_html
 ErrorLog /var/log/virtualmin/odoo9.tld_error_log
 LogLevel warn
 CustomLog /var/log/virtualmin/odoo9.tld_access_log combined
 ScriptAlias /cgi-bin/ /home/odoo9/domains/odoo9.tld/cgi-bin/
 DirectoryIndex index.html index.htm index.php index.php4 index.php5 index.php7
 <Directory /home/odoo9/domains/odoo9.tld/public_html>
  Options -Indexes +IncludesNOEXEC +SymLinksIfOwnerMatch +ExecCGI
  allow from all
  AllowOverride All Options=ExecCGI,Includes,IncludesNOEXEC,Indexes,MultiViews,SymLinksIfOwnerMatch
  Require all granted AddType application/x-httpd-php .php AddHandler fcgid-script .php7 AddHandler fcgid-script .php AddHandler fcgid-script .php7.0 FCGIWrapper /home/odoo9/domains/odoo9.tld/fcgi-bin/php7.0.fcgi .php7 FCGIWrapper /home/odoo9/domains/odoo9.tld/fcgi-bin/php7.0.fcgi .php FCGIWrapper /home/odoo9/domains/odoo9.tld/fcgi-bin/php7.0.fcgi .php7.0
 </Directory>
 <Directory /home/odoo9/domains/odoo9.tld/cgi-bin>
  allow from all
  AllowOverride All Options=ExecCGI,Includes,IncludesNOEXEC,Indexes,MultiViews,SymLinksIfOwnerMatch
  Require all granted
 </Directory>
 SSLEngine 				on
 SSLProtocol 	all -SSLv2 -SSLv3
 SSLCipherSuite 	ALL:!ADH:!EXPORT:!SSLv2:RC4+RSA:+HIGH:+MEDIUM SSLCertificateFile /home/odoo9/domains/odoo9.tld/etc/ssl/odoo9_tld.crt SSLCertificateKeyFile /home/odoo9/domains/odoo9.tld/ssl.key
 RequestHeader set X-Forwarded-Proto "https"
 <IfModule mod_rewrite.c>
  RewriteEngine On
  # Permanent redirect (301 HTTP) if no canonical domain name
  RewriteCond %{HTTP_HOST} !^odoo9.tld
  RewriteRule ^/(.*)$ https://odoo9.tld/$1 [R=301,NE,L]
  #RewriteRule ^/(.*)$ http://odoo9.tld/$1 [R=301,NE,L]
 </IfModule>
RemoveHandler .php7 RemoveHandler .php RemoveHandler .php7.0 FcgidMaxRequestLen 1073741824
 <Location "/" >
  Order deny,allow
  Deny from all
  Allow from all
 </Location>
 <Location "/web/database" >
  Order deny,allow
  Deny from all
  Allow from 123.123.123.123 192.168.1.0/24 127.0.0.0/255.0.0.0 ::1/128
 </Location>
 <Location "/website/info" >
  Order deny,allow
  Deny from all
  Allow from 123.123.123.123 192.168.1.0/24 127.0.0.0/255.0.0.0 ::1/128
 </Location>
SSLCACertificateFile /home/odoo9/domains/odoo9.tld/ssl.ca
 # Comment to disable proxy
 ProxyRequests Off
 ProxyPreserveHost On
 ProxyPass /.well-known !
 ProxyPass /longpolling/ http://localhost:9701/longpolling/ retry=0
 ProxyPassReverse /longpolling/ http://localhost:9701/longpolling/ retry=0
 ProxyPass / http://localhost:9700/ retry=0
 ProxyPassReverse / http://localhost:9700/ retry=0 IPCCommTimeout 241
</VirtualHost>

The Odoo 10 and 11 Proxies are accordingly with their paths, domains, and ports.

When we start the Odoo servers they don't start - Postgres 9.6 is running.

# /etc/init.d/odoo9-server start 
Starting odoo9-server: odoo9-server

The var/log/odoo/odoo9.log file is empty and accordingly both other log files for ODOO 10 and 11.

We would appreciate learning more about what might be wrong in our setups and how to get Odoo 11 and Odoo 9, 10 running on the same server in virtual environments.

Kind regards OTech