ejabberd-tools/README.md

ejabberd-tools

Repository containing various ejabberd tools.

tools

metrics

The metrics class is a tool to gather and aggregate metrics data through the ejabberd rest/ xmlrpc interface. In addition to that a Prometheus and InfluxDB client utilizing the metrics class is provided.

requirements

The easiest way to setup a clean Python project environment is to use a virtual environment inside the cloned repository directory. The following bash lines install the python-virtualenv module, create the virtual environment using Python3 and finally install all dependencies listed in the requirements file.

# Debian
apt install python-virtualenv

# Arch
pacman -S python-virtualenv

# create a venv folder inside the cloned repository
mkdir venv
virtualenv -p python3 venv/

source ./venv/bin/activate
pip install -r requirements.txt

ejabberd

To operate the api it is required to provide a user account eligible to issue api commands. We strongly recommend to use a dedicated user to operate the api and to secure this account with a specifically strong password.

configuration

ejabberd: api permissions

These configurations options first add the mod_http_api listener. Additionally the user api_user@magicbroccoli.de is added to the acl group, thus enabling him to access the mod_http_api configured in the api_permissions block.

listen:
  -
    port: 5280
    ip: "127.0.0.1"
    tls: true # optional
    module: ejabberd_http
    request_handlers:
      /api: mod_http_api

acl:
  api:
    user:
      - "api_user@magicbroccoli.de"
  loopback:
    ip:
      - 127.0.0.0/8
      - ::1/128
      - ::FFFF:127.0.0.1/128

api_permissions:
  "api access":
    from:
      - mod_http_api
    who:
      access:
        allow:
          acl: api
          acl: loopback # optional but recommended to restrict the api access to the local network
    what:
      - "*"
      - "!stop"
      - "!start"

ejabberd-metrics.yml

The ejabberd-metrics.yml file is the central configuration file which is used by all current and future tools inside this repository.

We provide an ejabberd-metrics.yml.default file, listing all possible and potentially necessary parameters. The final configuration file should be located at /etc/ejabberd-metrics.yml.

systemd service

To properly operate the metrics exporter tools, we created some systemd service templates, to simplify the whole process. If the ejabberd-metrics.yml file is not accessible for the usernobody:nogroup, it is required to update the User and Group definitions inside the service file. If a virtualenv is used, it is required to update the Environment=PATH to include the venv/bin directory created earlier.

[Unit]
Description=ejabberd influxdb exporter

[Service]
Type=simple

# this strongly depends on the ejabberd-metrics.yml permissions
User=nobody
Group=nogroup

ExecStart=/opt/ejabberd-metrics/influx.py
Restart=always
RestartSec=5s

# if the virtualenv is used PATH needs to customized
Environment=PATH=/opt/ejabberd-metrics/venv/bin:/usr/bin:/usr/local/bin

[Install]
WantedBy=multi-user.target

Another possible solution would be to edit the ExecStart parameter to include the virtualenv Python intepreter.

error codes

Lookup table for all custom error codes. The potential reasons are sorted by probability of being the root cause.

code	potential reason
17	login credential mismatch, potential api permission problem

pre-commit framework

This project utilizes the pre-commit framework to automate various small hick-ups that tend to happen prior to committing.

To use the framework it is necessary to follow these steps:

# install the pre-commit hook
pre-commit install

# to test your staged files manually run
pre-commit run