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c-relay/deploy_lt_debug.sh
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#!/bin/bash
# C-Relay Debug Binary Deployment Script
# Deploys build/c_relay_static_x86_64_debug to server for CPU profiling
#
# Usage:
# ./deploy_lt_debug.sh -- deploy debug binary and restart
# ./deploy_lt_debug.sh --profile -- deploy, then run perf and fetch results
#
# After deploying, profile with:
# sudo perf record -g -p $(pgrep c_relay) -- sleep 30
# sudo perf report --stdio --sort=symbol --no-children -n 2>/dev/null | head -80
#
# Restore production binary:
# ./deploy_lt.sh
set -e
LOCAL_DEBUG_BINARY="build/c_relay_static_x86_64_debug"
REMOTE_BINARY_PATH="/usr/local/bin/c_relay/c_relay"
REMOTE_PROD_BACKUP="/usr/local/bin/c_relay/c_relay.production"
SERVICE_NAME="c-relay"
REMOTE_HOST="ubuntu@laantungir.com"
# Check debug binary exists
if [ ! -f "$LOCAL_DEBUG_BINARY" ]; then
echo "ERROR: Debug binary not found: $LOCAL_DEBUG_BINARY"
echo ""
echo "Build it first with:"
echo " ./build_static.sh --debug"
echo ""
exit 1
fi
echo "=========================================="
echo "C-Relay Debug Deployment"
echo "=========================================="
echo "Binary: $LOCAL_DEBUG_BINARY ($(du -h "$LOCAL_DEBUG_BINARY" | cut -f1))"
echo "Target: $REMOTE_HOST:$REMOTE_BINARY_PATH"
echo ""
echo "WARNING: Debug binary has symbols and is larger than production."
echo " It is safe to run but should not be left deployed long-term."
echo ""
# Backup production binary (only if not already backed up)
echo "Backing up production binary..."
ssh "$REMOTE_HOST" "
if [ ! -f '$REMOTE_PROD_BACKUP' ]; then
sudo cp '$REMOTE_BINARY_PATH' '$REMOTE_PROD_BACKUP'
echo 'Production binary backed up to $REMOTE_PROD_BACKUP'
else
echo 'Production backup already exists, skipping'
fi
"
# Upload debug binary
echo "Uploading debug binary..."
scp "$LOCAL_DEBUG_BINARY" "$REMOTE_HOST:/tmp/c_relay_debug.tmp"
# Install debug binary
echo "Installing debug binary..."
ssh "$REMOTE_HOST" "
sudo mv '/tmp/c_relay_debug.tmp' '$REMOTE_BINARY_PATH'
sudo chown c-relay:c-relay '$REMOTE_BINARY_PATH'
sudo chmod +x '$REMOTE_BINARY_PATH'
"
# Restart service
echo "Restarting c-relay service..."
ssh "$REMOTE_HOST" "sudo systemctl daemon-reload && sudo systemctl restart '$SERVICE_NAME'"
echo ""
echo "✓ Debug binary deployed and service restarted"
echo ""
# If --profile flag, run perf automatically
if [ "$1" = "--profile" ]; then
echo "=========================================="
echo "Running perf profile (30 seconds)..."
echo "=========================================="
echo ""
# Wait for relay to start
sleep 3
ssh "$REMOTE_HOST" "
PID=\$(pgrep c_relay)
if [ -z \"\$PID\" ]; then
echo 'ERROR: c_relay not running'
exit 1
fi
echo \"Profiling PID \$PID for 30 seconds...\"
sudo perf record -g -p \$PID -- sleep 30
echo ''
echo '=== TOP FUNCTIONS BY CPU ==='
sudo perf report --stdio --sort=symbol --no-children -n 2>/dev/null | head -60
"
else
echo "=========================================="
echo "Next Steps: Profile the relay"
echo "=========================================="
echo ""
echo "SSH to server and run:"
echo " sudo perf record -g -p \$(pgrep c_relay) -- sleep 30"
echo " sudo perf report --stdio --sort=symbol --no-children -n 2>/dev/null | head -60"
echo ""
echo "Or run with --profile to do it automatically:"
echo " ./deploy_lt_debug.sh --profile"
fi
echo ""
echo "=========================================="
echo "Restore Production Binary When Done"
echo "=========================================="
echo ""
echo "Run this to restore the production binary:"
echo " ./deploy_lt.sh"
echo ""
echo "Or manually on the server:"
echo " sudo cp '$REMOTE_PROD_BACKUP' '$REMOTE_BINARY_PATH'"
echo " sudo systemctl restart $SERVICE_NAME"
echo ""