mirror of
https://github.com/ChuckBuilds/LEDMatrix.git
synced 2026-10-17 20:39:13 +00:00
fix(install): render the systemd units from their templates, not from heredocs
The installers carried their own inline copies of units that also exist as templates under systemd/, and the copies drifted. install_service.sh renders ledmatrix.service from the template correctly, then wrote ledmatrix-web.service from a heredoc that predated it -- missing Wants=network-online.target, RestartSec=10, SyslogIdentifier, CacheDirectory, CacheDirectoryMode and Environment=USE_THREADING=1. install_web_service.sh had a third copy, and install_wifi_monitor.sh a fourth, that one already differing from its template (syslog where the template says journal). startup_validator.py compares the installed unit against the template, so a rig installed this way warned on every boot -- and the remedy the warning names, "re-run scripts/install/install_service.sh", reinstalled the same stale copy. The warning could never clear. Reproduced on a live rig running exactly that unit. All three installers now render systemd/*.service through the same placeholder substitution. The template gains a __USER__ placeholder rather than hardcoding User=root, because the web interface runs as whoever installed it. That last point was a second, independent cause of a permanent warning: the validator substituted a fixed "root", so any non-root install reported drift forever. It now reads User= from the installed unit -- an install-time decision, not something the template dictates -- and compares everything else strictly. first_time_install.sh already reads the installed User= the same way. Tests cover a non-root web unit not warning, a genuinely changed directive in that unit still warning, the User= fallback, and a grep-based guard that no installer under scripts/install/ contains an inline unit body. That guard is what found the install_wifi_monitor.sh copy. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014RRtqXDCnvnY6EQwhT5CV9
This commit is contained in:
ChuckBuilds
co-authored by
Claude Opus 5
Claude Opus 5
parent
a29c84208e
commit
94f70eab31
@@ -20,10 +20,12 @@ echo "Installing LED Matrix Display Service for user: $ACTUAL_USER"
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echo "Using home directory: $USER_HOME"
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echo "Project root directory: $PROJECT_ROOT_DIR"
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# Create a temporary service file for the main display with the correct paths
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# Assuming ledmatrix.service template exists and uses /home/ledpi as a placeholder for user home
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# Render the main display unit from its template. The display service runs as
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# root (it needs GPIO), so __USER__ is always root here -- unlike the web unit
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# below, which runs as whoever installed it.
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if [ -f "$PROJECT_ROOT_DIR/systemd/ledmatrix.service" ]; then
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sed "s|/home/ledpi|$USER_HOME|g; s|__PROJECT_ROOT_DIR__|$PROJECT_ROOT_DIR|g; s|__USER__|root|g" "$PROJECT_ROOT_DIR/systemd/ledmatrix.service" > /tmp/ledmatrix.service.tmp
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sed "s|__PROJECT_ROOT_DIR__|$PROJECT_ROOT_DIR|g; s|__USER__|root|g" \
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"$PROJECT_ROOT_DIR/systemd/ledmatrix.service" > /tmp/ledmatrix.service.tmp
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# Copy the service file to the systemd directory
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sudo cp /tmp/ledmatrix.service.tmp /etc/systemd/system/ledmatrix.service
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# Clean up
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@@ -48,42 +50,36 @@ fi
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# === LEDMatrix Web Interface service (ledmatrix-web.service) ===
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echo "Installing LEDMatrix Web Interface service (ledmatrix-web.service)..."
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WEB_SERVICE_FILE_CONTENT=$(cat <<EOF
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[Unit]
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Description=LED Matrix Web Interface (Conditional Start)
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After=network.target
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# Wants=ledmatrix.service
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# After=network.target ledmatrix.service
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[Service]
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Type=simple
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ExecStart=/usr/bin/python3 ${PROJECT_ROOT_DIR}/scripts/utils/start_web_conditionally.py
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WorkingDirectory=${PROJECT_ROOT_DIR}
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StandardOutput=journal
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StandardError=journal
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User=${ACTUAL_USER}
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Restart=on-failure
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# Environment="PYTHONUNBUFFERED=1"
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[Install]
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WantedBy=multi-user.target
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EOF
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)
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# Write the new service file
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echo "$WEB_SERVICE_FILE_CONTENT" | sudo tee /etc/systemd/system/ledmatrix-web.service > /dev/null
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# Rendered from systemd/ledmatrix-web.service, the same template
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# install_web_service.sh uses. This was an inline heredoc until it drifted from
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# the template: it had lost Wants=network-online.target, RestartSec,
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# SyslogIdentifier, CacheDirectory and Environment=USE_THREADING. Because
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# src/startup_validator.py compares the installed unit against the template,
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# every boot warned "re-run install_service.sh" -- and doing so reinstalled the
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# same stale copy, so the warning could never clear.
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if [ -f "$PROJECT_ROOT_DIR/systemd/ledmatrix-web.service" ]; then
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sed "s|__PROJECT_ROOT_DIR__|$PROJECT_ROOT_DIR|g; s|__USER__|$ACTUAL_USER|g" \
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"$PROJECT_ROOT_DIR/systemd/ledmatrix-web.service" \
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| sudo tee /etc/systemd/system/ledmatrix-web.service > /dev/null
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else
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echo "WARNING: ledmatrix-web.service template not found at $PROJECT_ROOT_DIR/systemd/ledmatrix-web.service. Web interface service not configured."
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fi
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echo "Reloading systemd daemon for web service..."
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sudo systemctl daemon-reload
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echo "Enabling ledmatrix-web.service to start on boot..."
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sudo systemctl enable ledmatrix-web.service
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if [ -f "/etc/systemd/system/ledmatrix-web.service" ]; then
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echo "Enabling ledmatrix-web.service to start on boot..."
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sudo systemctl enable ledmatrix-web.service
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echo "Starting ledmatrix-web.service..."
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sudo systemctl start ledmatrix-web.service
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echo "Starting ledmatrix-web.service..."
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sudo systemctl start ledmatrix-web.service
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echo "LEDMatrix Web Interface service (ledmatrix-web.service) installation complete."
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echo "It will start based on the 'web_display_autostart' setting in config/config.json."
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echo "LEDMatrix Web Interface service (ledmatrix-web.service) installation complete."
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echo "It will start based on the 'web_display_autostart' setting in config/config.json."
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else
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echo "Skipping enable/start for ledmatrix-web.service as it was not configured."
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fi
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# === End of LEDMatrix Web Interface service ===
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@@ -26,37 +26,20 @@ if [ "$EUID" -ne 0 ]; then
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exit 1
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fi
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# Generate the service file dynamically with the correct paths
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echo "Generating service file with dynamic paths..."
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WEB_SERVICE_FILE_CONTENT=$(cat <<EOF
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[Unit]
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Description=LED Matrix Web Interface Service
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After=network-online.target
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Wants=network-online.target
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# Render the unit from systemd/ledmatrix-web.service. That template is the
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# only description of the unit; this script used to carry its own heredoc copy,
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# and install_service.sh a third, which is how the installed unit on real rigs
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# ended up missing RestartSec, SyslogIdentifier and CacheDirectory while
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# src/startup_validator.py warned about drift on every boot.
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TEMPLATE="$PROJECT_ROOT_DIR/systemd/ledmatrix-web.service"
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if [ ! -f "$TEMPLATE" ]; then
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echo "ERROR: unit template not found at $TEMPLATE"
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exit 1
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fi
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[Service]
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Type=simple
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User=${ACTUAL_USER}
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WorkingDirectory=${PROJECT_ROOT_DIR}
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Environment=USE_THREADING=1
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ExecStart=/usr/bin/python3 ${PROJECT_ROOT_DIR}/scripts/utils/start_web_conditionally.py
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Restart=on-failure
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RestartSec=10
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StandardOutput=syslog
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StandardError=syslog
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SyslogIdentifier=ledmatrix-web
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# Automatically create and manage cache directory
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CacheDirectory=ledmatrix
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CacheDirectoryMode=0775
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[Install]
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WantedBy=multi-user.target
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EOF
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)
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# Write the service file to systemd directory
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echo "Writing service file to /etc/systemd/system/ledmatrix-web.service"
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echo "$WEB_SERVICE_FILE_CONTENT" > /etc/systemd/system/ledmatrix-web.service
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sed "s|__PROJECT_ROOT_DIR__|$PROJECT_ROOT_DIR|g; s|__USER__|$ACTUAL_USER|g" \
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"$TEMPLATE" > /etc/systemd/system/ledmatrix-web.service
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# Ensure cache directory exists with proper permissions
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# This is a fallback for older systemd versions that don't support CacheDirectory
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@@ -64,30 +64,18 @@ if [ ${#MISSING_PACKAGES[@]} -gt 0 ]; then
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echo "✓ Package installation completed"
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fi
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# Create service file with correct paths
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# Render the unit from systemd/ledmatrix-wifi-monitor.service rather than
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# inlining a second copy here. The copy this replaced had already drifted --
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# it wrote StandardOutput/StandardError=syslog where the template says journal.
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echo ""
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echo "Creating systemd service file..."
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SERVICE_FILE_CONTENT=$(cat <<EOF
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[Unit]
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Description=LED Matrix WiFi Monitor Daemon
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After=network.target
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Wants=network.target
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TEMPLATE="$PROJECT_ROOT_DIR/systemd/ledmatrix-wifi-monitor.service"
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if [ ! -f "$TEMPLATE" ]; then
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echo "ERROR: unit template not found at $TEMPLATE"
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exit 1
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fi
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[Service]
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Type=simple
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User=root
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WorkingDirectory=$PROJECT_ROOT_DIR
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ExecStart=/usr/bin/python3 $PROJECT_ROOT_DIR/scripts/utils/wifi_monitor_daemon.py --interval 30
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Restart=on-failure
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RestartSec=10
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StandardOutput=syslog
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StandardError=syslog
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SyslogIdentifier=ledmatrix-wifi-monitor
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[Install]
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WantedBy=multi-user.target
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EOF
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)
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SERVICE_FILE_CONTENT=$(sed "s|__PROJECT_ROOT_DIR__|$PROJECT_ROOT_DIR|g; s|__USER__|root|g" "$TEMPLATE")
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if [ "$EUID" -eq 0 ]; then
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echo "$SERVICE_FILE_CONTENT" | tee /etc/systemd/system/ledmatrix-wifi-monitor.service > /dev/null
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