working out the worker/execution interface

scripts/build-pack-binaries.sh

@@ -0,0 +1,116 @@
+#!/usr/bin/env bash
+# Build pack binaries using Docker and extract them to ./packs/
+#
+# This script builds native pack binaries (sensors, etc.) in a Docker container
+# with GLIBC compatibility and extracts them to the appropriate pack directories.
+#
+# Usage:
+#   ./scripts/build-pack-binaries.sh
+#
+# The script will:
+# 1. Build pack binaries in a Docker container with GLIBC 2.36 (Debian Bookworm)
+# 2. Extract binaries to ./packs/core/sensors/
+# 3. Make binaries executable
+# 4. Clean up temporary container
+
+set -euo pipefail
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+YELLOW='\033[1;33m'
+NC='\033[0m' # No Color
+
+# Script directory
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+PROJECT_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
+
+# Configuration
+IMAGE_NAME="attune-pack-builder"
+CONTAINER_NAME="attune-pack-binaries-tmp"
+DOCKERFILE="docker/Dockerfile.pack-binaries"
+
+echo -e "${GREEN}Building pack binaries...${NC}"
+echo "Project root: ${PROJECT_ROOT}"
+echo "Dockerfile: ${DOCKERFILE}"
+echo ""
+
+# Navigate to project root
+cd "${PROJECT_ROOT}"
+
+# Check if Dockerfile exists
+if [[ ! -f "${DOCKERFILE}" ]]; then
+    echo -e "${RED}Error: ${DOCKERFILE} not found${NC}"
+    exit 1
+fi
+
+# Build the Docker image
+echo -e "${YELLOW}Step 1/4: Building Docker image...${NC}"
+if DOCKER_BUILDKIT=1 docker build \
+    -f "${DOCKERFILE}" \
+    -t "${IMAGE_NAME}" \
+    . ; then
+    echo -e "${GREEN}✓ Image built successfully${NC}"
+else
+    echo -e "${RED}✗ Failed to build image${NC}"
+    exit 1
+fi
+
+# Create a temporary container from the image
+echo -e "${YELLOW}Step 2/4: Creating temporary container...${NC}"
+if docker create --name "${CONTAINER_NAME}" "${IMAGE_NAME}" ; then
+    echo -e "${GREEN}✓ Container created${NC}"
+else
+    echo -e "${RED}✗ Failed to create container${NC}"
+    exit 1
+fi
+
+# Extract binaries from the container
+echo -e "${YELLOW}Step 3/4: Extracting pack binaries...${NC}"
+
+# Create target directories
+mkdir -p packs/core/sensors
+
+# Copy timer sensor binary
+if docker cp "${CONTAINER_NAME}:/pack-binaries/attune-core-timer-sensor" "packs/core/sensors/attune-core-timer-sensor" ; then
+    echo -e "${GREEN}✓ Extracted attune-core-timer-sensor${NC}"
+else
+    echo -e "${RED}✗ Failed to extract timer sensor binary${NC}"
+    docker rm "${CONTAINER_NAME}" 2>/dev/null || true
+    exit 1
+fi
+
+# Make binaries executable
+chmod +x packs/core/sensors/attune-core-timer-sensor
+
+# Verify binaries
+echo ""
+echo -e "${YELLOW}Verifying binaries:${NC}"
+file packs/core/sensors/attune-core-timer-sensor
+ldd packs/core/sensors/attune-core-timer-sensor || echo "(ldd failed - binary may be static or require different environment)"
+ls -lh packs/core/sensors/attune-core-timer-sensor
+
+# Clean up temporary container
+echo ""
+echo -e "${YELLOW}Step 4/4: Cleaning up...${NC}"
+if docker rm "${CONTAINER_NAME}" ; then
+    echo -e "${GREEN}✓ Temporary container removed${NC}"
+else
+    echo -e "${YELLOW}⚠ Failed to remove temporary container (may already be removed)${NC}"
+fi
+
+# Summary
+echo ""
+echo -e "${GREEN}════════════════════════════════════════${NC}"
+echo -e "${GREEN}Pack binaries built successfully!${NC}"
+echo -e "${GREEN}════════════════════════════════════════${NC}"
+echo ""
+echo "Binaries location:"
+echo "  • packs/core/sensors/attune-core-timer-sensor"
+echo ""
+echo "These binaries are now ready to be used by the init-packs service"
+echo "when starting docker-compose."
+echo ""
+echo "To use them:"
+echo "  docker compose up -d"
+echo ""