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Kazoo as docker containers


This is development environment, it provides all Kazoo components alongside with source code, and a way to modify it on each step. If you're interested in just running Kazoo in Docker environment please check production images.


  • All components depends on base-os image (debian jessie)
  • BigCouch is replaced by CouchDB 2.0
  • Containers are big (as they contains complete source code and build tools)


You need to have Docker version at least 1.9.0 (as this setup relies on docker network heavily). >> /etc/hosts

You need to append /etc/hosts file to access Monster UI by URL http://monster-ui.kazoo:3000, and in turn it needs access to http://kazoo.kazoo:8000.

Please note each container and scripts should be run inside their respective folders.

After start

To initialize the system after clean start (with empty database) there is script that:

  1. Creates a master account admin with password admin
  2. Adds freeswitch node to Kazoo
  3. Registers sound prompts
  4. Registers Monster-UI 'apps'

In order to make it work you need to wait some time after Kazoo container starts (while it creates databases).

Kazoo builds

cd kazoo
./ [REPO]

Default REPO is if omitted.

It automatically checks and caches builds for the latest commit. When latest commit hash changes only necessary steps are performed to update the image (git pull/make install actually), utilizing the docker caching ability.

Kazoo Erlang console

docker exec -ti kazoo.kazoo ./ remote_console
# or
cd kazoo ; ./console

Kazoo sup

cd kazoo

# Running apps
./sup kapps_controller running_apps

# Add Freeswitch node
./sup ecallmgr_maintenance add_fs_node freeswitch@freeswitch.kazoo

# Get freeswitch nodes (should be [<<"freeswitch@freeswitch.kazoo">>])
./sup ecallmgr_config get fs_nodes

# Add admin user
./sup crossbar_maintenance create_account admin_name kamailio.kazoo admin admin

# Import Kazoo voice prompts
./sup kazoo_media_maintenance import_prompts /home/user/kazoo-sounds/kazoo-core/en/us en-us

# Check RabbitMQ
./sup kazoo_amqp_maintenance connection_summary

Sanity check

Check Kazoo status (this is probably what you should see)

$ docker exec kazoo.kazoo sup kz_nodes status

Node          : kazoo@kazoo.kazoo
Version       : 4.0.0 - 18
Memory Usage  : 190.55MB
Processes     : 1816
Ports         : 52
Zone          : local
Broker        : amqp://rabbitmq.kazoo:5672
WhApps        : blackhole(4m19s)         callflow(4m19s)          cdr(4m19s)               conference(4m19s)        
                crossbar(4m19s)          doodle(4m18s)            ecallmgr(4m18s)          fax(4m18s)               
                hangups(3m58s)           hotornot(3m58s)          jonny5(3m58s)            kazoo_globals(4m20s)     
                konami(3m58s)            media_mgr(3m58s)         milliwatt(3m58s)         omnipresence(3m58s)      
                pivot(3m58s)             registrar(3m58s)         reorder(3m58s)           runtime_tools            
                stepswitch(3m58s)        sysconf(4m19s)           teletype(3m58s)          trunkstore(3m58s)        
Channels      : 0
Registrations : 0
Media Servers : freeswitch@freeswitch.kazoo (3m51s)

Node          : kamailio@kamailio.kazoo
Version       : 5.0.0-dev4
Memory Usage  : 14.27MB
Processes     : 0
Ports         : 0
Zone          : local
Broker        : amqp://rabbitmq.kazoo:5672
WhApps        : kamailio(17m37s)

Check Kazoo knows about Kamailio instance

$ docker exec kazoo.kazoo sup ecallmgr_maintenance acl_summary
| Name                           | CIDR               | List          | Type  | Authorizing Type | ID                               |
| kamailio.kazoo                 |      | authoritative | allow | system_config    |                                  |

Check Kamailio has FreeSwitch as dispatcher

$ docker exec kamailio.kazoo kamcmd dispatcher.list | grep URI
URI: sip:freeswitch.kazoo:11000


How to register Monster-UI apps.

  1. You need to have monster-ui and kazoo images running
  2. You need to copy apps from monster-ui to kazoo
  3. You need to 'register' these apps
docker cp monster-ui.kazoo:/usr/share/nginx/html/dist/apps apps
docker cp apps kazoo.kazoo:/home/user
rm -rf apps
cd kazoo
./sup crossbar_maintenance init_apps /home/user/apps http://kazoo.kazoo:8000/v2


You can setup a Kazoo cluster, please see cluster folder. Here is how:

cd cluster

The setup comprises 3 networks: kazoo, zone1 and zone2. Hosts from zone1 and zone2 can communicate to network kazoo only. In zone1 and zone2 there are kazoo instance and freeswitch instance, and in kazoo network there are monster-ui, rabbitmq, couchdb and kamailio hosts.

You should run only after kazoo finishes database update.

Environment variables

The intent is to specify docker build flags e.g. to pass --no-cache to forcefully rebuild.

BUILD_FLAGS -- flags to pass to build command for every image


Intended workflow:

  1. edit source code
  2. commit
  3. rebuild and re-run container on commit (either locally or remotely)


  • Add haproxy to setup (balance the load between two or more instances of kazoo)
  • Inter-container file exchange for sup (monster-ui apps, kazoo-sounds)


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