pinger

Born on a rainy Sunday afternoon, when my ISP was being its unreliable self again. Measures the latency and packet loss to one of more hosts and reports the data to Prometheus.

Getting started

Command line arguments:

The following command line arguments can be passed:

Usage:
  pinger [flags] [ <host> ... ]

Flags:
      --addr string     Metrics listener address (default ":8080")
      --config string   Configuration file
      --debug           Log debug messages
  -h, --help            help for pinger
  -v, --version         version for pinger

Configuration file

The configuration file option specifies a yaml-formatted configuration file::

# Log debug messages
debug: true
# Metrics listener address (default ":8080")
addr: :8080
# Targets to ping
targets: 
  - host: 127.0.0.1  # Host IP address of hostname (mandatory)
    name: localhost  # Name to use for prometheus metrics (optional; pinger uses host if name is not specified)

If the filename is not specified on the command line, pinger will look for a file config.yaml in the following directories:

/etc/pinger
$HOME/.pinger
.

Any value in the configuration file may be overridden by setting an environment variable with a prefix PINGER_.

The target hosts can also be provided by exporting an environment variable 'HOSTS', e.g.

export HOSTS="127.0.0.1 192.168.0.1 192.168.0.200"

Pinger will consider provided hosts in the following order:

• HOSTS environment variable
• command-line arguments
• configuration file

Docker

Images for arm, arm64 & amd64 are available on ghcr.io.

Metrics

Pinger exposes the following metrics to Prometheus:

metric	type	help
pinger_latency_seconds	GAUGE	Average latency in seconds
pinger_packets_received_count	COUNTER	Total packet received
pinger_packets_sent_count	COUNTER	Total packets sent

Authors

• Christophe Lambin

License

This project is licensed under the MIT License - see the LICENSE.md file for details.