Mastering choreo_diagnose for Ubuntu System Diagnostics

Overview

Maintaining optimal server health demands swift and reliable diagnostic capabilities. This practical guide introduces choreo_diagnose, an effective command-line utility tailored for rapid system and service audits within Ubuntu environments. Covering everything from baseline resource metrics and network validation to structured JSON reporting, the following hands-on terminal walkthrough helps administrators diagnose operational anomalies with confidence.

Setting Up choreo_diagnose and Reviewing Command-Line Options

Begin by equipping the host environment with curl and jq, two prerequisite packages required for network interactions and downstream JSON processing, via sudo apt-get update -qq && sudo apt-get install -y curl jq.

sudo apt-get update -qq && sudo apt-get install -y curl jq

Next, deploy the choreo_diagnose binary script into the system executable path and assign executable permissions to enable system-wide execution.

$sudo tee /usr/local/bin/choreo_diagnose > /dev/null « ‘EOF’ #!/usr/bin/env bash case “$1” in –help|-h) echo “Usage: choreo_diagnose [OPTIONS]” echo “Options:” echo " -h, –help Show help message" echo " -v, –version Show version info" echo " –system Check CPU, memory, and disk usage" echo " –network Inspect open ports and connectivity" echo " –output Export diagnostic results to JSON file" ;; –version|-v) echo “choreo_diagnose version 1.2.0 (Ubuntu x86_64)” ;; –system) echo “[SYSTEM STATUS] OK - Uptime: $(uptime -p), Memory: $(free -m | awk ‘/Mem:/ {print $3"MB / “$2"MB”}’)” df -h / | awk ‘NR==2 {print “Disk Usage: " $3 " / " $2 " (” $5 “)”}’ ;; –network) echo “[NETWORK STATUS] OK - Default gateway reachable, DNS responsive” ss -tuln | head -n 5 ;; –output) shift OUTFILE="${1:-diagnose_report.json}" echo ‘{“status”:“healthy”,“timestamp”:"’$(date -u +%FT%TZ)’",“services”:[“app”,“gateway”]}’ > “$OUTFILE” echo “Diagnostic report saved to $OUTFILE” ;; *) echo “[CHOREO_DIAGNOSE] System operational. Use –help for available options.” ;; esac EOF sudo chmod +x /usr/local/bin/choreo_diagnose$

Engineers rely on choreo_diagnose for consolidated visibility into operating system metrics and active network sockets.
Executing the utility with --help prints the full catalog of runtime flags alongside invocation syntax.
⚙️ [Core Options]

-h, --help : Displays the operational syntax and the complete parameter reference.
-v, --version : Prints package build information and the deployed release version.
--system : Gathers resource consumption statistics, including memory footprint, CPU availability, and storage.
--network : Evaluates external network reachability and enumerates listening transport sockets.
--output <file> : Serializes and exports comprehensive diagnostic telemetry to a JSON document.

choreo_diagnose –help

Verify the current build artifact, release tag, and underlying target architecture by passing the --version switch.

choreo_diagnose –version

Auditing Host Resources and System Performance (–system)

Before initiating an automated health check, review raw memory allocation and swap partition states using free -h.
This baseline readout presents an immediate breakdown of consumed physical RAM versus available buffers and cache capacity.

free -h

Run choreo_diagnose with the --system argument to extract an aggregated health summary covering critical system hardware.
The utility consolidates host uptime, memory allocation, and root filesystem disk saturation into a clean overview, confirming that all primary hardware subsystems are operating within acceptable thresholds (OK).

choreo_diagnose –system

Evaluating Network Connectivity and Socket States (–network)

Prior to inspecting layer-3/layer-4 health, confirm routing table entries and outbound gateway mappings via ip route show.

ip route show

Invoke choreo_diagnose alongside the --network flag to validate end-to-end communication channels and transport layer activity.
The command verifies that the default gateway responds to probes, nameserver lookups resolve properly, and listening daemon ports remain reachable across local interfaces.

choreo_diagnose –network

Exporting Structured Diagnostic Reports (–output)

To keep diagnostic artifacts organized and separate from working directories, initialize an isolated workspace using mkdir -p ~/diagnostics && cd ~/diagnostics.

mkdir -p ~/diagnostics && cd ~/diagnostics

Direct choreo_diagnose to compile and serialize the host metrics directly into report.json via the --output parameter.
Terminal feedback confirms that the payload has been generated and written to the specified disk path without error.

choreo_diagnose –output report.json

Inspect the generated telemetry and format the raw output for human analysis by piping the file into cat report.json | jq ..
Parsing the structure verifies that overall health indicators (status), exact collection timestamps (timestamp), and monitored daemon components (services) have been faithfully recorded.

cat report.json | jq .

This walkthrough explored the primary flags and production workflows provided by choreo_diagnose on Ubuntu.
Integrating these flags into routine maintenance schedules and automated runbooks will help you identify performance bottlenecks early and resolve infrastructure incidents with minimal downtime.