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dance-lessons-coach/scripts/test-opentelemetry.sh
Gabriel Radureau 18ac000d30
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🐛 fix: emit all config-loading logs in correct format from the start
The logger was initialised to console format unconditionally, so the
"Config file loaded" message (and similar early logs) were always written
as human-readable text even when JSON logging was configured.

Root cause: classic chicken-and-egg — the format flag lives inside the
config that is being loaded.

Fix: add peekJSONLogging() which resolves the format before any log is
emitted by (1) checking DLC_LOGGING_JSON directly via os.Getenv, then
(2) doing a minimal throwaway Viper pre-read of the config file for the
logging.json key.  The redundant format-switch block that ran after
Unmarshal() is removed.

Also add the "Logging configured" log as the very first line, and
replace the hardcoded PROJECT_DIR path in start-server.sh,
test-graceful-shutdown.sh, and test-opentelemetry.sh with a dynamic
derivation from BASH_SOURCE[0].

Closes #15

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
2026-04-12 19:25:06 +02:00

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2.5 KiB
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#!/bin/bash
# dance-lessons-coach OpenTelemetry Test Script
# This script tests OpenTelemetry integration with Jaeger
set -e
echo -e "\033[1;34m=== dance-lessons-coach OpenTelemetry Test ===\033[0m"
echo ""
# Configuration
SCRIPTS_DIR=$(dirname "$(realpath "${BASH_SOURCE[0]}")")
PROJECT_DIR=$(dirname "$SCRIPTS_DIR")
SERVER_CMD="./scripts/start-server.sh"
LOG_FILE="server.log"
PID_FILE="server.pid"
cd "$PROJECT_DIR"
# Clean up any existing server
echo "Cleaning up any existing server..."
if [ -f "$PID_FILE" ]; then
echo "Found existing PID file, stopping previous server..."
$SERVER_CMD stop > /dev/null 2>&1 || true
rm -f "$PID_FILE" "$LOG_FILE"
fi
# Kill any processes on port 8080
pkill -9 -f "go run" > /dev/null 2>&1 || true
lsof -ti :8080 | xargs -I {} kill -9 {} > /dev/null 2>&1 || true
lsof -ti :4317 | xargs -I {} kill -9 {} > /dev/null 2>&1 || true
sleep 1
echo "Starting Jaeger in Docker..."
# Start Jaeger container if not running
if ! docker ps | grep -q "jaegertracing/all-in-one"; then
docker run -d --name jaeger \
-e COLLECTOR_OTLP_ENABLED=true \
-p 16686:16686 \
-p 4317:4317 \
-p 4318:4318 \
jaegertracing/all-in-one:latest
echo "Jaeger container started"
sleep 5
else
echo "Jaeger container already running"
fi
echo "Starting server with OpenTelemetry enabled..."
DLC_TELEMETRY_ENABLED=true DLC_TELEMETRY_OTLP_ENDPOINT="localhost:4317" DLC_TELEMETRY_INSECURE=true \
DLC_TELEMETRY_SERVICE_NAME="dance-lessons-coach" $SERVER_CMD start
sleep 3
echo "Testing API endpoints..."
# Test health endpoint
echo "Testing /api/health:"
HEALTH_RESPONSE=$(curl -s http://localhost:8080/api/health)
echo "Response: $HEALTH_RESPONSE"
# Test greet endpoint
echo "Testing /api/v1/greet/:"
GREET_RESPONSE=$(curl -s http://localhost:8080/api/v1/greet/)
echo "Response: $GREET_RESPONSE"
# Test greet with name
echo "Testing /api/v1/greet/TestUser:"
GREET_NAME_RESPONSE=$(curl -s http://localhost:8080/api/v1/greet/TestUser)
echo "Response: $GREET_NAME_RESPONSE"
echo ""
echo "Stopping server..."
$SERVER_CMD stop
sleep 2
echo ""
echo -e "\033[0;32m✅ OpenTelemetry Test Complete!\033[0m"
echo ""
echo "To view traces in Jaeger:"
echo "1. Open http://localhost:16686 in your browser"
echo "2. Select 'dance-lessons-coach' service"
echo "3. Click 'Find Traces' button"
echo ""
echo "You should see traces for:"
echo "- /api/health requests"
echo "- /api/v1/greet/ requests"
echo "- /api/v1/greet/TestUser requests"
echo ""
# Clean up
rm -f "$PID_FILE" "$LOG_FILE"
exit 0