Probe

A small GO based agent for monitoring CPU, Memory and Disk usage.

  🔍 Starting Probe...

  📡 Data logging is enabled.

  🚨 Alarm is armed.

  🤖 Probe is watching.
  

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Getting Started

Before you start, you need to install the prerequisites.

Prerequisites

• Redis: Version >= 5.0 for data logging

Install from binary

Downloads can be found at releases page on GitHub.

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Install from source

Prerequisites for building

• GO: Version >= 1.21

1. Clone the repository:

git clone git@github.com:petaki/probe.git

2. Open the folder:

cd probe

3. Build the Probe:

go build

4. Copy the example configuration:

cp .env.example .env

Configuration

The configruation is stored in the .env file.

Disk Ignored

• PATTERN* - Prefix
• *PATTERN - Suffix
• *PATTERN* - Contains
• PATTERN - Exact match

PROBE_DISK_IGNORED=/dev,/var/lib/docker/*

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Redis URL

PROBE_REDIS_URL=redis://127.0.0.1:6379/0

Redis Key Prefix

PROBE_REDIS_KEY_PREFIX=probe:

---

Data Log Enabled (Redis required)

PROBE_DATA_LOG_ENABLED=true

Data Log Timeout (in seconds)

PROBE_DATA_LOG_TIMEOUT=2592000

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Alarm Enabled

PROBE_ALARM_ENABLED=false

Alarm CPU Percent

• 0 - Disabled

PROBE_ALARM_CPU_PERCENT=30

Alarm Memory Percent

• 0 - Disabled

PROBE_ALARM_MEMORY_PERCENT=50

Alarm Disk Percent

• 0 - Disabled

PROBE_ALARM_DISK_PERCENT=80

Alarm Webhook Method

PROBE_ALARM_WEBHOOK_METHOD=POST

Alarm Webhook URL

PROBE_ALARM_WEBHOOK_URL=http://127.0.0.1:4000/alarm

Alarm Webhook Header

PROBE_ALARM_WEBHOOK_HEADER='{"Authorization": "Bearer TOKEN", "Accept": "application/json"}'

Alarm Webhook Body

• %p - Probe
• %n - Name of the watcher
• %a - Alarm percent
• %u - Used percent
• %t - Timestamp in RFC3339 format
• %x - Timestamp in Unix format
• %l - Satellite link (relative)

PROBE_ALARM_WEBHOOK_BODY='{"probe": "%p", "name": "%n", "alarm": %a, "used": %u, "timestamp_rfc3339": "%t", "timestamp_unix": %x, "link": "%l"}'

---

Alarm Filter Enabled (Redis required)

PROBE_ALARM_FILTER_ENABLED=false

Alarm Filter Wait (in minutes before first alarm)

• 0 - Disabled

PROBE_ALARM_FILTER_WAIT=5

Alarm Filter Sleep (in seconds between alarms)

• 0 - Disabled

PROBE_ALARM_FILTER_SLEEP=300

Running the tests

You can run the tests using the following command:

go test -v ./...

Data visualization

You can display the collected data with the Satellite.

Contributors

• @dyipon for development ideas, bug reports and testing

Reporting Issues

If you are facing a problem with this package or found any bug, please open an issue on GitHub.

License

The MIT License (MIT). Please see License File for more information.