Telegraf Docker image for scraping SNMP from QNAP and APC devices

A fork of https://github.com/pheetr/telegraf-snmp, as the image is broken due to apt sources dead links and it doesn't support ARM platforms, would push a PR to that release, but the issues tab is not available

Example configuration improved so that it can be sanely used with Grafana (e.g. using device identifiers, names and tags, preferring integers for values instead of strings, etc).

Running

Docker Pull

docker pull vincejv/telegraf-snmp:latest

Docker Run

docker run -d \
  --name telegraf-snmp \
  -v /your_host_location/telegraf/telegraf.conf:/etc/telegraf/telegraf.conf \
  --restart unless-stopped \
  vincejv/telegraf-snmp:latest

Docker Compose

version: '3'

services:
  telegraf:
    image: vincejv/telegraf-snmp:latest
    container_name: telegraf
    user: root # run only as root if you have CAP_RAW issues
    volumes:
      # Mount for telegraf config
      - your_host_location/telegraf/telegraf.conf:/etc/telegraf/telegraf.conf:ro
    restart: unless-stopped

Worth noting

• Based on snmpwalk it seems that Qnap doesn't publish eg. memory metrics (cache, buffers) so this config just uses the very basic free/total values from their own OIDs.

• Didn't add SSD cache metrics as I don't use that feature

• speedtest-cli by Ookla is installed and can be used using the input configuration below, EULA is accepted by default, use Grafana Dashboard Id 12428 to visualize the data

  #
  # speedtest-cli by Ookla
  #
  
  [[inputs.exec]]
  commands = ["/usr/bin/speedtest -f json --accept-license --accept-gdpr"]
  name_override = "speedtest"
  timeout = "4m"
  interval = "20m"
  data_format = "json"
  json_string_fields = [ "interface_externalIp",
                        "server_name",
                        "server_location",
                        "server_host",
                        "server_ip",
                        "result_url" ]
  

• Added support for linux/amd64,linux/arm64/v8 and linux/arm/v7

Automated release

GitHub Action detects new versions at https://github.com/influxdata/telegraf/releases. If new version detected:

• build new Docker image with latest version
• push it to Docker Hub at https://hub.docker.com/repository/docker/pidity/telegraf-snmp