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izPBX is a Turnkey Cloud Native Telephony System powered by Asterisk Engine and FreePBX Management GUI

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Name

izPBX Cloud Native Telephony System

Description

izPBX is a Turnkey Cloud Native Telephony System powered by Asterisk Engine and FreePBX Management GUI

Supported tags

Current Production Branch: (Asterisk 18 + FreePBX 15)

  • latest, 18, 18.15, 18.15.X, 18.15.X-BUILD, 18.15.X-COMMIT

Previous Production Branch: (Asterisk 16 + FreePBX 15)

  • 0, 0.9, 0.9.X, 0.9.X-BUILD, 0.9.X-COMMIT

Development Branches:

  • Asterisk 18 LTS + FreePBX 15: dev-18, dev-18.X, dev-18.X.X-BUILD, dev-18.X.X-COMMIT
  • Asterisk 16 LTS + FreePBX 15: dev-16, dev-16.X, dev-16.X.X-BUILD, dev-16.X.X-COMMIT

Version notes:

Tags format: Z.Y.X-[BUILD|COMMIT]

where:

  • Z = Asterisk release (PBX Engine)
  • Y = FreePBX release (PBX GUI)
  • X = izPBX release (PBX Distribution)
  • BUILD = Build number | COMMIT = GIT commit ID

Look into project Tags page to discover the latest versions

Dockerfile

Features

  • 60 secs install from zero to a running turnkey PBX system
  • Really fast initial bootstrap to deploy a full features Asterisk+FreePBX system
  • CentOS 8 64bit powered
  • Small image footprint
  • Asterisk PBX Engine (compiled from scratch)
  • FreePBX WEB Management GUI (with predownloaded modules for quicker initial deploy)
  • FreePBX automatic installation, managed when deploying izpbx for the first time, successive updates will be managed by FreePBX Official Version Upgrade itself
  • Persistent storage mode for configuration and not volatile data
  • Fail2ban as security monitor to block SIP and HTTP brute force attacks
  • FOP2 Operator Panel
  • Integrated Asterisk Zabbix agent for active health monitoring
  • Misc izpbx-* scripts (like izpbx-callstats)
  • izsynth utility - TTS/Text To Speech synthesizer, background music overlay assembler and audio file converter for PBX and Home Automation Systems
  • tcpdump and sngrep utility to debug VoIP calls
  • supervisord as services management with monitoring and automatic restart when services fail
  • postfix MTA daemon for sending mails (notifications, voicemails and FAXes)
  • Integrated cron daemon for running scheduled tasks
  • TFTP and DHCP server powered by DNSMasq for autoprovisioning VoIP Phones
  • Apache 2.4 and PHP 7.3 (mpm_prefork+mod_php configuration mode)
  • Automatic Let's Encrypt HTTPS certificate management for exposed PBXs to internet
  • Custom commercial SSL Certificates support
  • Logrotating of service logs
  • All configurations made via single central .env file
  • Many customizable variables to use (look inside default.env file)
  • Only two containers setup: (Antipattern docker design but needed by the FreePBX ecosystem to works)
    • izpbx (izpbx-asterisk container: Asterisk Engine + FreePBX Frontend + others services)
    • izpbx-db (mariadb container: Database Backend)

Targets of this project

  • On-Premise, fast, automatic and repeatable deploy of PBX systems.
    by default max 50 concurrent calls... it's based on default 200 ports RTP range (10000-10200)... for best security, fine-tune based on your needs!
    you can use the standard 10000-20000 range when using network_mode: host (default)

Limits of this project

  • Deploy 1 izPBX for every public IP or VM. No multi containers setup works out of the box right now (caused by technical limits of how Docker and SIP UDP RTP traffic works)
  • Docker Antipattern Design (FreePBX was not designed to run as containerized app, and its ecosystem requires numerous modules to function, and the FreePBX modules updates will managed by FreePBX Admin Modules Pages itself not by docker pulls)

How to use this image

Using docker-compose is the suggested method:

  • Install your prefered Linux OS into VM or Baremetal Server

  • Install Docker Runtime and docker-compose utility for your Operating System from https://www.docker.com/get-started

    • CentOS 8 Quick&Dirty commands (skip if you use other distribution):
sudo dnf config-manager --add-repo=https://download.docker.com/linux/centos/docker-ce.repo
sudo dnf install docker-ce -y
eval sudo curl -L "$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep browser_download_url | grep "docker-compose-$(uname -s)-$(uname -m)\"" | awk '{print $2}')" -o /usr/local/bin/docker-compose && sudo chmod +x /usr/local/bin/docker-compose
sudo systemctl enable --now docker

  • Clone GIT repository or download latest release from: https://github.com/ugoviti/izdock-izpbx/releases and unpack it into a directory (ex. /opt/izpbx):

    • git clone https://github.com/ugoviti/izdock-izpbx.git /opt/izpbx

  • Copy default.env file to .env:

    • cd /opt/izpbx
    • cp default.env .env

  • Customize .env variables, specially the security section of mysql passwords (look bellow for a full variables list):

    • vim .env

  • Start izpbx using docker-compose command:

    • docker-compose up -d

  • Wait 60 seconds and point your web browser to the IP address of your docker host and follow initial startup guide

Note: by default, to correctly handle SIP NAT and SIP-RTP UDP traffic, the izpbx container will use the network_mode: host, so the izpbx container will be exposed directly to the outside network without using docker internal network range (network_mode: host will prevent multiple izpbx containers from running inside the same host).
Modify docker-compose.yml and comment #network_mode: host if you need to run multiple izpbx deploy in the same host (not tested. there will be problems with RTP traffic).

If you want test izPBX without using docker-compose, you can use the following docker commands:

Start MySQL:
docker run --rm -ti -v ./data/db:/var/lib/mysql -e MYSQL_ROOT_PASSWORD=CHANGEM3 -e MYSQL_PASSWORD=CHANGEM3 --name izpbx-db mariadb:10.4

Start izPBX:
docker run --rm -ti --network=host --privileged --cap-add=NET_ADMIN -v ./data/izpbx:/data -e MYSQL_ROOT_PASSWORD=CHANGEM3 -e MYSQL_PASSWORD=CHANGEM3 -e MYSQL_SERVER=127.0.0.1 -e MYSQL_DATABASE=asterisk -e MYSQL_USER=asterisk -e APP_DATA=/data --name izpbx izpbx-asterisk:latest

Services Management

Command to restart Asterisk PBX

docker restart izpbx

Command to restart MariaDB Database

docker restart izpbx-db

If you want restart single services inside izpbx container

Enter the container:
docker exec -it izpbx bash

Restart Asterisk+FreePBX Framework:
supervisorctl restart izpbx

To restart the others available services use supervisorctl restart SERVICE

Available services:

  • asterisk
  • cron
  • fail2ban
  • fop2
  • httpd
  • izpbx
  • tftpd
  • postfix
  • zabbix-agent

Tested systems and host compatibility

Tested Docker Runtime:

  • moby-engine 19.03
  • docker-ce 19.03
  • docker-compose 1.25

Tested Host Operating Systems:

  • CentOS 6/7/8
  • Fedora Core 31/32
  • Debian 10
  • Ubuntu 20.04

Container deploy upgrade path

  1. Upgrade the version of izpbx deploy changing image tag into docker-compose.yml file (from git releases page, verify if upstream docker compose was updated)

  2. Upgrade the izpbx deploy with:
    (NB. First verify if docker-compose.yml and default.env was updated a make the same changes in your .env file)

docker-compose pull
docker-compose up -d
  1. Open FreePBX Web URL and verify if exist any modules updates from FreePBX Menù: Admin-->Modules Admin: Check Online

FreePBX upgrade path to a major release

FreePBX will be installed into persistent data dir only on first izpbx deploy (when no installations already exist).

Following container updates will not upgrade the FreePBX Framework (just Asterisk engine will be updated).
After initial deploy, upgrading FreePBX Core and Modules and Major Release (es. from 15.x to 16.x) is possible only via official FreePBX upgrade method:

  • FreePBX Menù: Admin-->Modules Admin: Check Online select FreePBX Upgrader

Recap: only Asterisk core engine will be updated on container image update.

Environment default variables

## database configurations
## WARNING: security passwords... please change the default
MYSQL_ROOT_PASSWORD=CHANGEM3
MYSQL_PASSWORD=CHANGEM3

## WARNING: if the docker-compose use "network_mode: bridge" specify: db
#MYSQL_SERVER=db
## WARNING: if the docker-compose use "network_mode: host" specify: 127.0.0.1 or the address of a remote database
MYSQL_SERVER=127.0.0.1
MYSQL_DATABASE=asterisk
MYSQL_USER=asterisk

## enable persistent data storage (comment if you want disable persistence of data) (default: /data)
APP_DATA=/data

## cron notifications mail address (default: root@localhost)
#ROOT_MAILTO=

#SMTP SmartHost configuration. Specify DNS name or IP address for the SMTP RelayHost (default: none)
#SMTP_RELAYHOST=
#SMTP_RELAYHOST_USERNAME=
#SMTP_RELAYHOST_PASSWORD=
#SMTP_ALLOWED_SENDER_DOMAINS=
#SMTP_MESSAGE_SIZE_LIMIT=
#SMTP_MAIL_FROM=

## enable if the pbx is exposed to internet and want autoconfigure virtualhosting based on the following FQDN (default: none)
#APP_FQDN=sip.example.com

## enable https protocols (default: true)
## place your custom SSL certs in $APP_DATA/etc/pki/izpbx (use filename 'izpbx.crt' for public key and 'izpbx.key' for the private)
## by default izpbx will use a self-signed certificate
#HTTPD_HTTPS_ENABLED=true

## redirect unencrypted http connetions to https (default: false)
#HTTPD_REDIRECT_HTTP_TO_HTTPS=false

## auto generate Let's Encrypt SSL certificates if the pbx is exposed to internet and want enable https protocol (default: false)
#LETSENCRYPT_ENABLED=false

## by default everyone can connect to HTTP/HTTPS WEB interface, comment out to restrict the access and enhance the security (default: 0.0.0.0/0)
#HTTPD_ALLOW_FROM=127.0.0.0/8 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16

## phpMyAdmin configuration
#PMA_ALIAS=/admin/pma
#PMA_ALLOW_FROM=127.0.0.0/8 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16

## fop2 configuration (https://www.fop2.com/docs/)
#FOP2_LICENSE_NAME=<put here your corporation name>
#FOP2_LICENSE_CODE=<put here your license code>
#FOP2_LICENSE_IFACE=docker0

## the following variables are not mandatory, you can leave commented (FOP2_AMI_PASSWORD will be a random hash)
#FOP2_AMI_HOST=localhost
#FOP2_AMI_PORT=5038
#FOP2_AMI_USERNAME=admin
#FOP2_AMI_PASSWORD=amp111

## zabbix configuration
#ZABBIX_SERVER=monitor.example.com

## fail2ban (format: FAIL2BAN_SECTION_KEY=VALUE)
FAIL2BAN_ENABLED=true
FAIL2BAN_ASTERISK_ENABLED=true
#FAIL2BAN_ASTERISK_LOGPATH=/var/log/asterisk/security
#[email protected]
#[email protected]
FAIL2BAN_DEFAULT_IGNOREIP=127.0.0.0/8 10.0.0.0/8 172.16.0.0/12 192.168.0.0/16
FAIL2BAN_DEFAULT_BANTIME=300
FAIL2BAN_DEFAULT_FINDTIME=3600
FAIL2BAN_DEFAULT_MAXRETRY=10
FAIL2BAN_RECIDIVE_ENABLED=true
FAIL2BAN_RECIDIVE_BANTIME=1814400
FAIL2BAN_RECIDIVE_FINDTIME=15552000
FAIL2BAN_RECIDIVE_MAXRETRY=10

## freepbx advanced settings (prefix every FreePBX variable with FREEPBX_)
## modules enabled on first startup
#FREEPBX_MODULES_EXTRA=soundlang callrecording cdr conferences customappsreg featurecodeadmin infoservices logfiles music manager arimanager filestore recordings announcement asteriskinfo backup callforward callwaiting daynight calendar certman cidlookup contactmanager donotdisturb fax findmefollow iaxsettings miscapps miscdests ivr parking phonebook presencestate printextensions queues cel timeconditions pm2
FREEPBX_FREEPBX_SYSTEM_IDENT=izPBX
FREEPBX_AS_DISPLAY_READONLY_SETTINGS=1
FREEPBX_AS_OVERRIDE_READONLY=1
FREEPBX_ENABLECW=0
FREEPBX_TONEZONE=it
FREEPBX_PHPTIMEZONE=Europe/Rome
#FREEPBX_BRAND_IMAGE_TANGO_LEFT=images/tango.png
#FREEPBX_BRAND_IMAGE_FREEPBX_FOOT=images/freepbx_small.png
#FREEPBX_BRAND_IMAGE_SPONSOR_FOOT=images/sangoma-horizontal_thumb.png
#FREEPBX_BRAND_FREEPBX_ALT_LEFT=FreePBX
#FREEPBX_BRAND_FREEPBX_ALT_FOOT=FreePBX®
#FREEPBX_BRAND_SPONSOR_ALT_FOOT=www.sangoma.com
#FREEPBX_BRAND_IMAGE_FREEPBX_LINK_LEFT=http://www.freepbx.org
#FREEPBX_BRAND_IMAGE_FREEPBX_LINK_FOOT=http://www.freepbx.org
#FREEPBX_BRAND_IMAGE_SPONSOR_LINK_FOOT=http://www.sangoma.com
#FREEPBX_RSSFEEDS=

## WORKAROUND @20200322 https://issues.freepbx.org/browse/FREEPBX-20559 : fwconsole setting SIGNATURECHECK 0
FREEPBX_SIGNATURECHECK=0

## DHCP server configuration
#DHCP_DOMAIN=izpbx.local
#DHCP_POOL_START=10.1.1.10
#DHCP_POOL_END=10.1.1.250
#DHCP_POOL_LEASE=72h
## leave commented to use docker container ip address
#DHCP_DNS=10.1.1.1
#DHCP_GW=10.1.1.1
#DHCP_NTP=10.1.1.1

## network ports
## webserver and freepbx ports
APP_PORT_HTTP=80
APP_PORT_HTTPS=443
# asterisk ports
APP_PORT_PJSIP=5160
APP_PORT_SIP=5060
APP_PORT_IAX=4569
APP_PORT_RTP_START=10000
APP_PORT_RTP_END=10200
# database port
APP_PORT_MYSQL=3306
# other services ports
APP_PORT_DHCP=67
APP_PORT_TFTP=69
APP_PORT_FOP2=4445
APP_PORT_ZABBIX=10050

## container services
POSTFIX_ENABLED=true
CRON_ENABLED=true
HTTPD_ENABLED=true
IZPBX_ENABLED=true
FAIL2BAN_ENABLED=true
#DHCP_ENABLED=true
#TFTP_ENABLED=true
#FOP2_ENABLED=true
#ZABBIX_ENABLED=true
#PMA_ENABLED=true

Zabbix Agent Configuration

Consult official repository page for installation and configuration of Asterisk Zabbix Template in you Zabbix Server:

FreePBX Configuration Best Practices

  • Settings-->Advanced Settings

    • CW Enabled by Default: NO
    • Country Indication Tones: Italy
    • Ringtime Default: 60 seconds
    • Speaking Clock Time Format: 24H
    • PHP Timezone: Europe/Rome

  • Settings-->Asterisk Logfile Settings

    • Security Settings-->Allow Anonymous Inbound SIP Calls: No
    • Security Settings-->Allow SIP Guests: No

  • Settings-->Asterisk SIP Settings

    • File Name: security
    • Security: ON (all others OFF)

  • Settings-->Filestore-->Local

    • Path Name: Local Storage
    • Path: ASTSPOOLDIR/backup

  • Admin-->Backup & Restore

    • Basic Information-->Backup Name: Daily Backup
    • Notifications-->Email Type: Failure
    • Storage-->Storage Location: Local Storage
    • Schedule and Maintinence-->Enabled: Yes
    • Schedule and Maintinence-->Scheduling: Every: Day Minute: 00 Hour: 00
    • Maintinence-->Delete After Runs: 0
    • Maintinence-->Delete After Days: 14

  • Admin-->Caller ID Lookup Sources

    • Source Description: ContactManager
    • Source type: Contact Manager
    • Cache Results: No
    • Contact Manager Group(s): All selected

  • Admin-->Sound Languages-->Setttings

    • Global Language: Italian

Trobleshooting

  • FreePBX is slow to reload (at 2020-06-14)

    • As temporary WORKAROUND enter into izpbx container shell and run:
      docker exec -it izpbx bash
      fwconsole setting SIGNATURECHECK 0

  • Factory Reset / Start from scratch a clean configurations:

    • docker-compose down
    • Remove the data directory created by deploy
    • docker-compose up -d

TODO / Future Development

  • Hylafax+ Server + IAXModem (used for sending FAXes. Receiving FAXes via mail is already possibile using FreePBX FAX Module)
  • macOS host support? (edit docker-compose.yml and comment localtime volume?)
  • Windows host support (need to use docker volume instead local directory path?)
  • Kubernetes deploy via Helm Chart (major problems for RTP UDP ports range... needs further investigation, no valid solutions right now)

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izPBX is a Turnkey Cloud Native Telephony System powered by Asterisk Engine and FreePBX Management GUI

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