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contrail-installer is a set of scripts and utilities to quickly build, install, configure and deploy OpenContrail. It can be used with pre-build packages (e.g. Launchpad PPA) or from sources. It is typically used in conjunction with devstack.


The contrail-installer master branch generally points to trunk versions of OpenContrail components whether sources or snapshots. For older, stable versions, use appropriate release name.

Currently contrail-installer supports the following:

contrail-installer: sources master,    devstack: stable/mitaka
contrail-installer: sources R3.0,      devstack: stable/mitaka
contrail-installer: packages R2.20,    devstack: stable/mitaka

OpenContrail localrc

OpenContrail uses localrc to contain all local configuration and customizations. Best to start with a sample localrc.

cd contrail-installer
cp samples/localrc-all localrc

CONTRAIL_DEFAULT_INSTALL - Set this to True for installation from OpenContrail binary packages. When set to False, trunk OpenContrail bits will be downloaded and compiled.

LAUNCHPAD_BRANCH=PPA - Applicable only when CONTRAIL_DEFAULT_INSTALL is set to True. It specifies to use released binary packages for installation instead of compiling and building from sources. Default is to use latest snapshots as this knob is commented out by default in sample localrc.

PHYSICAL_INTERFACE - This is external interface Vrouter should bind to. It should have a valid IP address configured. For example eth0

INSTALL_PROFILE - Set this to ALL to for an all in one node.

USE_SCREEN - Set this to True to launch contrail modules in a screen session called "contrail". Connect to screen session for any troubleshooting of contrail modules.

LOGFILE - Specify logfile for runs. By default this is log/contrail.log in contrail-installer directory

OpenContrail script is the main script that supports following options:

build     ... to build OpenContrail
Install   ... to Install OpenContrail
configure ... to Configure & Provision 
start     ... to Start OpenContrail Modules
stop      ... to Stop OpenContrail Modules
restart   ... to Restart OpenContrail Modules without resetting data

Launching OpenContrail

Run the following NOT AS ROOT:

cd contrail-installer
cp samples/localrc-all localrc (edit localrc as needed)
./ build
./ install
./ configure
./ start

Upon successful run of last command, output similar to below should appear:

#:~/contrail-installer$ 2017-04-26 12:50:29 +++ echo -ne '\015'
++ clean
++ local r=0
++ echo 'exited with status :0'
exited with status :0
++ exit 0

This will create a screen names "contrail" with a tab corresponding to each contrail service:

#:~/contrail-installer$ screen -ls
There are screens on:
    2427.contrail   (04/26/2017 12:48:59 PM)        (Detached)
1 Sockets in /var/run/screen/S-jenkins.

alt text


Trunk of contrail-installer currently works with stable/mitaka of devstack.

git clone
cd devstack
git checkout stable/mitaka

A glue file is needed for devstack to use Contrail neutron plugin

cp ~/contrail-installer/devstack/lib/neutron_plugins/opencontrail lib/neutron_plugins/

Use provided sample localrc for devstack. Note that this disables some neutron networking services because these services are provided by Contrail networking plugin. Edit localrc as needed to reflect your physical interface and host:

cp ~/contrail-installer/devstack/samples/localrc-all localrc
HOST_IP=<your host ip>

Run ./

if devstack installs successfully, output similar to following will be shown:

DevStack Components Timed

run_process - 71 secs
test_with_retry - 7 secs
apt-get-update - 17 secs
pip_install - 269 secs
restart_apache_server - 10 secs
wait_for_service - 29 secs
apt-get - 9 secs

This is your host IP address:
This is your host IPv6 address: ::1
Horizon is now available at
Keystone is serving at
The default users are: admin and demo
The password: contrail123

alt text

Restarting OpenContrail+Devstack

If you need to restart OpenContrail or Devstack for some reason, currently they need to be synchronized. So

cd ~/devstack

cd ~/contrail-installer
./ restart
cd ~/devstack

if issues persist, it might be helpful to reboot server or VM and repeat the steps below

cd ~/contrail-installer
./ start
cd ~/devstack

Verify installation

1) screen -x contrail and run through various tabs to see various contrail modules are running
2) Run utilities/contrail-status to see if all services are running

Running sanity

Note that default sample localrc enables simple gateway. A script is available that will create a virtual network, launch two VMs, ping each VM from host and then SSH into it. Follow the steps below:

cd ~/contrail-installer/utilities
export CONTRAIL_DIR=~/contrail-installer
export DEVSTACK_DIR=~/devstack

Opencontrail UI

OpenContrail UI runs on http port 8080. It will automatically redirect to https port 8143. username is "admin", and the password is mentioned in the localrc (default: "contrail123")

Automating and devstack

contrail-installer/utilities/ attempts to automate steps required by sequential runs of and devstack. It works off a configuration file. Default called auto.conf is provided. Following example launches in binary PPA mode while using R2.20 packages. See auto.conf for more options to launch in source mode or with use of snapshots

$ cd ~/contrail-installer/utilities
$ diff auto.conf my.conf

$ ./ my.conf