Sampler: A Visual Server Monitoring Tool for Linux

Sampler is a visual monitoring tool based on shell commands, configurable via simple YAML files, allowing quick inspection of server CPU, memory, network, Docker containers, and more.

Installation (Linux)

# Download sampler package to /usr/local/bin
sudo wget https://github.com/sqshq/sampler/releases/download/v1.1.0/sampler-1.1.0-linux-amd64 -O /usr/local/bin/sampler
# Add execution permission
sudo chmod +x /usr/local/bin/sampler

After installation, the executable is located in /usr/local/bin .

Usage

Configure monitoring scripts in a yaml file and run:

# Make config file executable
chmod +x config.yml
# Start sampler with config
sampler -c config.yml

Examples of YAML snippets for CPU, RAM, Docker stats, network activity, time, etc., are provided. Each snippet defines a widget (sparklines, barcharts, textboxes, etc.) with sampling commands such as ps -A -o %cpu | awk '{s+=$1} END {print s}' for CPU usage or docker stats --no-stream --format "table {{.Name}}\t{{.CPUPerc}}\t{{.MemUsage}}\t{{.PIDs}}" for Docker containers.

The article also shows how to combine multiple widgets into a single dashboard, producing a visually appealing monitoring panel.

Conclusion

Sampler offers an intuitive way to monitor server status and can also be extended to monitor middleware like MySQL, MongoDB, and Kafka.

Project URL : https://github.com/sqshq/sampler