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Trunk-recorder

https://github.com/USA-RedDragon/trunk-recorder-prometheus

Trunk-recorder screenshot 1

Trunk Recorder Prometheus Plugin

This is a plugin for Trunk Recorder that publishes metrics in Prometheus format.

Grafana Dashboard

A Grafana dashboard is available here and also in the grafana/dashboard.json file in this repository.

Image

Grafana Dashboard

Install

  1. Build and install the current version of Trunk Recorder following these instructions. Make sure you do a sudo make install at the end to install the Trunk Recorder binary and libaries systemwide. The plugin will be built against these libraries.

  2. Now, install the prometheus-cpp Library. The full documentation for that is here… but the basic commands are as follows:

bash 
git clone https://github.com/jupp0r/prometheus-cpp.git
cd prometheus-cpp

# fetch third-party dependencies
git submodule init
git submodule update

mkdir _build
cd _build

# run cmake
cmake .. -DBUILD_SHARED_LIBS=ON -DENABLE_PUSH=OFF -DENABLE_COMPRESSION=ON

# build
cmake --build . --parallel 4

# run tests
ctest -V

# install the libraries and headers
cmake --install .
  1. Build and install the plugin:
bash 
mkdir build
cd build
cmake ..
sudo make install

Configure

KeyRequiredDefault ValueTypeDescription
port9842uint16_tThe port to listen on for HTTP requests

Plugin Object Example

See the included config.json as an example of how to load this plugin.

yaml 
    "plugins": [
    {
        "name": "prometheus",
        "library": "libprometheus_plugin.so",
        "port": 9842
    }]

Docker

The included Dockerfile will allow buliding a trunk-recorder docker image with this plugin included.

docker-compose can be used to automate the build and deployment of this image. In the Docker compose file replace the image line with a build line pointing to the location where this repo has been cloned to.

Docker compose file:

yaml 
version: '3'
services:
  recorder:
    build: ./trunk-recorder-prometheus
    container_name: trunk-recorder
    restart: always
    privileged: true
    volumes:
      - /dev/bus/usb:/dev/bus/usb
      - /var/run/dbus:/var/run/dbus
      - /var/run/avahi-daemon/socket:/var/run/avahi-daemon/socket
      - ./:/app
Revisions
RevisionDescriptionCreated

Get this dashboard

Import the dashboard template

or

Download JSON

Datasource
Dependencies
Resources
Docs: Importing dashboards Webinar: Getting started with Grafana dashboard design Webinar: Building advanced Grafana dashboards