Sniffer

Author: Shubham Oli oli.shubham@gmail.com

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Brief

Sniffer is a binary which monitors CPU, Disk and Memory usage of any node. Every resource is monitored by a GoRoutine which instrument the resource for usage at set frequency and once the threshold is crossed it notifies you via Slack and Email.

Run it locally

$ git clone https://github.com/shubhamoli/sniffer
$ cd sniffer
$ dep ensure
$ export CONFIG_PATH=/path/to/config
$ go run cmd/sniffer/main.go

Configuration

Configuration is done in YML format and following is the sample config file

# config.yml
---
global:
  notifiers:
    - type: slack
      webhook_url: <slack-webhook-url>


sniff:
  - entity: disk_usage       
    threshold: 20          # Percentage without % sign
    frequency: 3           # Seconds
    realert: 30            # Seconds
    notify:
      - slack              # array of notifier in global
      - email

  - entity: mem_usage
    threshold: 20
    frequency: 3
    realert: 30
    notify:
      - slack

  - entity: cpu_usage
    threshold: 80
    frequency: 3
    realert: 30
    notify:
      - slack
      - email

Running as systemd service unit

A service file is already present in the repository so that Sniffer can be run a systemd service but you are free to run it via any process manager you want.

TODOs

• Add Support for email
• Add support for reminder/re-alert
• Write tests and more tests
• Clean the code (write in more idiomatic way as per Go)
• Support Docker
• Add support for multiple slack channels and email groups.