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#!/usr/bin/env bash
set -euo pipefail
# Kidcam Deployment Script for Ubuntu 20.04 (Jetson Nano)
readonly SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
readonly PROJECT_ROOT="$(cd "${SCRIPT_DIR}/../.." && pwd)"
readonly KIDCAM_USER="kidcam"
readonly INSTALL_DIR="/opt/kidcam"
readonly CONFIG_DIR="/etc/kidcam"
readonly VENV_DIR="${INSTALL_DIR}/venv"
log_info() {
echo "[INFO] $*" >&2
}
log_error() {
echo "[ERROR] $*" >&2
}
log_success() {
echo "[SUCCESS] $*" >&2
}
check_system() {
log_info "Checking system requirements..."
if [[ "$(uname -s)" != "Linux" ]]; then
log_error "This script requires Linux"
exit 1
fi
if [[ "$(uname -m)" != "aarch64" ]]; then
log_error "This script is designed for aarch64 (ARM64) architecture"
log_error "Found: $(uname -m)"
exit 1
fi
if ! grep -q "Ubuntu" /etc/os-release; then
log_error "This script is designed for Ubuntu"
log_error "Found: $(cat /etc/os-release | grep PRETTY_NAME)"
exit 1
fi
if [[ $EUID -ne 0 ]]; then
log_error "This script must be run as root (use sudo)"
exit 1
fi
log_success "System requirements verified"
}
create_user() {
if id "${KIDCAM_USER}" &>/dev/null; then
log_info "User '${KIDCAM_USER}' already exists"
else
log_info "Creating user '${KIDCAM_USER}'..."
useradd --system --no-create-home --shell /usr/sbin/nologin \
--comment "Kidcam service account" "${KIDCAM_USER}"
usermod -aG video "${KIDCAM_USER}"
log_success "User '${KIDCAM_USER}' created"
fi
}
install_system_dependencies() {
log_info "Installing system dependencies..."
apt-get update
apt-get install -y \
python3 \
python3-pip \
python3-venv \
python3-dev \
libopencv-dev \
python3-opencv \
gstreamer1.0-tools \
gstreamer1.0-plugins-base \
gstreamer1.0-plugins-good \
gstreamer1.0-plugins-bad \
gstreamer1.0-plugins-ugly \
gstreamer1.0-libav \
libgstreamer1.0-dev \
libgstreamer-plugins-base1.0-dev \
v4l-utils \
build-essential \
cmake \
pkg-config
log_success "System dependencies installed"
}
setup_directories() {
log_info "Setting up directories..."
mkdir -p "${INSTALL_DIR}"
mkdir -p "${CONFIG_DIR}"
mkdir -p "${INSTALL_DIR}/_/tmp"
log_info "Copying project files..."
rsync -av --exclude='_/' --exclude='.git' --exclude='*.pyc' \
"${PROJECT_ROOT}/" "${INSTALL_DIR}/"
chown -R "${KIDCAM_USER}:${KIDCAM_USER}" "${INSTALL_DIR}"
chown -R "${KIDCAM_USER}:${KIDCAM_USER}" "${CONFIG_DIR}"
chmod 755 "${INSTALL_DIR}"
chmod 750 "${CONFIG_DIR}"
log_success "Directories configured"
}
setup_python_environment() {
log_info "Setting up Python virtual environment..."
if [[ ! -d "${VENV_DIR}" ]]; then
sudo -u "${KIDCAM_USER}" python3 -m venv "${VENV_DIR}"
log_success "Virtual environment created"
else
log_info "Virtual environment already exists"
fi
log_info "Installing Python packages..."
sudo -u "${KIDCAM_USER}" "${VENV_DIR}/bin/pip" install --upgrade pip wheel setuptools
# Install packages with careful dependency management
sudo -u "${KIDCAM_USER}" "${VENV_DIR}/bin/pip" install \
ultralytics \
python-telegram-bot \
opencv-python \
torch torchvision --index-url https://download.pytorch.org/whl/cpu \
numpy \
pillow
log_success "Python packages installed"
}
create_config() {
local config_file="${CONFIG_DIR}/config.env"
if [[ -f "${config_file}" ]]; then
log_info "Config file already exists at ${config_file}"
log_info "Skipping config creation. Review existing configuration."
else
log_info "Creating example configuration..."
cat > "${config_file}" <<'EOF'
# Kidcam Configuration
# Copy this file to /etc/kidcam/config.env and edit with your values
# Camera device (default: /dev/video0)
CAMERA_DEVICE=/dev/video0
# RTSP stream port (default: 8554)
STREAM_PORT=8554
# Person detection confidence threshold (0.0-1.0, default: 0.5)
DETECTION_CONFIDENCE=0.5
# Cooldown period in minutes after detection (default: 5)
COOLDOWN_MINUTES=5
# Telegram Bot Configuration
# Get your bot token from @BotFather on Telegram
TELEGRAM_BOT_TOKEN=your-bot-token-here
# Get your chat ID by messaging your bot and checking:
# https://api.telegram.org/bot<YOUR_BOT_TOKEN>/getUpdates
TELEGRAM_CHAT_ID=your-chat-id-here
# Python path for imports
PYTHONPATH=/opt/kidcam
EOF
chown "${KIDCAM_USER}:${KIDCAM_USER}" "${config_file}"
chmod 640 "${config_file}"
log_success "Example config created at ${config_file}"
log_info "IMPORTANT: Edit ${config_file} with your Telegram credentials"
fi
}
install_systemd_service() {
log_info "Installing systemd service..."
cp "${SCRIPT_DIR}/kidcam.service" /etc/systemd/system/
chmod 644 /etc/systemd/system/kidcam.service
# Update ExecStart to use virtualenv python
sed -i "s|ExecStart=/usr/bin/python3|ExecStart=${VENV_DIR}/bin/python3|" \
/etc/systemd/system/kidcam.service
systemctl daemon-reload
systemctl enable kidcam.service
log_success "Systemd service installed and enabled"
}
main() {
log_info "Starting Kidcam deployment..."
check_system
create_user
install_system_dependencies
setup_directories
setup_python_environment
create_config
install_systemd_service
log_success "Deployment complete!"
echo ""
log_info "Next steps:"
echo " 1. Edit /etc/kidcam/config.env with your Telegram credentials"
echo " 2. Test camera access: v4l2-ctl --list-devices"
echo " 3. Start service: sudo systemctl start kidcam"
echo " 4. Check logs: sudo journalctl -u kidcam -f"
echo ""
log_info "For more information, see ${INSTALL_DIR}/Biz/Kidcam/README.md"
}
main "$@"
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