feat: add custom Debian ISO build for automated silent installation

2026-05-23 12:37:31 +00:00
parent 38f7ae467a
commit b7866000b4
4 changed files with 437 additions and 0 deletions
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+# SeniorNet Kiosk — Custom Debian ISO
+
+Build a bootable ISO that installs and auto-configures the kiosk app on any machine.
+
+## On Your Workstation (192.168.88.41)
+
+### 1. Clone the repo (if not already done)
+```bash
+git clone https://gitea.jgitta.com/jgitta/senior-kiosk.git
+cd senior-kiosk
+```
+
+### 2. Build the ISO
+```bash
+sudo ./build-iso.sh
+```
+
+This creates: `iso-output/seniornet-kiosk.iso` (~1-2 GB, takes 5-10 min)
+
+## Testing on Production Kiosk (192.168.88.44)
+
+### 1. Write ISO to bootable USB
+On your workstation with USB connected:
+```bash
+# List devices to find your USB
+lsblk
+
+# Write ISO (replace sdX with your USB device, e.g., sdb)
+sudo dd if=iso-output/seniornet-kiosk.iso of=/dev/sdX bs=4M status=progress && sync
+```
+
+### 2. Boot from USB
+- Plug USB into production kiosk
+- Power on and select USB boot (usually F12, ESC, or DEL during startup)
+- Installation starts silently (no prompts)
+
+### 3. Wait for installation
+- Silent Debian installation: ~5-10 minutes
+- Clones repo, installs dependencies
+- System reboots automatically
+
+### 4. Verify kiosk is running
+After reboot, you should see the kiosk home screen with buttons.
+
+To check status via SSH:
+```bash
+ssh jgitta@192.168.88.44
+journalctl -u kiosk.service -f
+```
+
+## What the ISO Contains
+
+- **Debian 13 Trixie** (minimal base)
+- **Chromium** (system package, not snap)
+- **Python 3, PyQt5, websocket-client**
+- **Openbox** (window manager)
+- **Xvfb** (virtual display)
+- **Your kiosk app** (cloned from Gitea at install time)
+- **Auto-boot to kiosk mode** (no desktop login)
+
+## Files
+
+- `preseed.cfg` — Debian unattended installer config
+- `install-kiosk.sh` — Post-install script (runs after Debian install)
+- `build-iso.sh` — Build script (creates the ISO)
+
+## Troubleshooting
+
+**If installation hangs:**
+- Check network connectivity during install
+- Gitea must be reachable (or install will use git clone fallback)
+
+**If kiosk doesn't start:**
+```bash
+ssh jgitta@192.168.88.44
+journalctl -u kiosk.service -20  # View last 20 lines of logs
+sudo systemctl restart kiosk.service
+```
+
+**To access terminal:**
+- Press Alt+F2 during boot
+- Log in as `root` (password: `kiosk`)
+- Run: `/usr/local/bin/kiosk-restart` to restart
+
+## Customization
+
+To modify the ISO:
+1. Edit `preseed.cfg` (installer config)
+2. Edit `install-kiosk.sh` (post-install)
+3. Edit `build-iso.sh` (ISO build options)
+4. Rebuild: `sudo ./build-iso.sh`
+
+## Distribution
+
+Once tested, you can:
+- Copy `seniornet-kiosk.iso` to USB drives for deployment
+- Host on web server for download
+- Share with end users
+- Any machine can boot and auto-install (no Proxmox needed)
@@ -0,0 +1,119 @@
+#!/bin/bash
+set -e
+
+# Build SeniorNet Kiosk ISO
+# Run on workstation: ./build-iso.sh
+# Requires: debian-live-build, sudo
+
+echo "==> SeniorNet Kiosk ISO Builder"
+echo
+
+if [ "$EUID" -ne 0 ]; then
+  echo "ERROR: Run as root (sudo ./build-iso.sh)"
+  exit 1
+fi
+
+# Check dependencies
+if ! command -v lb &>/dev/null; then
+  echo "==> Installing debian-live-build..."
+  apt-get update
+  apt-get install -y debian-live-build
+fi
+
+BUILD_DIR="/tmp/kiosk-build-$$"
+OUTPUT_DIR="$(pwd)/iso-output"
+REPO_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+mkdir -p "$BUILD_DIR" "$OUTPUT_DIR"
+cd "$BUILD_DIR"
+
+echo "==> Initializing live-build..."
+lb config \
+  --distribution trixie \
+  --architectures amd64 \
+  --image-type iso-hybrid \
+  --bootappend-live "boot=live components autologin username=root quiet splash" \
+  --bootappend-install "preseed/file=/preseed.cfg auto=true priority=critical" \
+  --linux-packages "linux-image-amd64" \
+  --parent-mirror-bootstrap "https://deb.debian.org/debian" \
+  --parent-mirror-binary "https://deb.debian.org/debian" \
+  --parent-mirror-binary-security "https://security.debian.org/debian-security" \
+  --parent-distribution-binary-security trixie-security
+
+echo "==> Adding packages..."
+mkdir -p config/package-lists
+cat > config/package-lists/kiosk.list.chroot << 'PKGLIST'
+# Base system
+openssh-server
+build-essential
+git
+curl
+wget
+sudo
+
+# Display and window manager
+xserver-xorg
+xserver-xorg-video-dummy
+xinit
+openbox
+xvfb
+xdotool
+xprop
+
+# Chromium browser
+chromium
+
+# Python and kiosk app
+python3
+python3-pip
+sqlite3
+PKGLIST
+
+echo "==> Adding preseed file..."
+mkdir -p config/includes.installer
+cp "$REPO_DIR/preseed.cfg" config/includes.installer/
+
+echo "==> Adding hook script..."
+mkdir -p config/hooks/normal
+cat > config/hooks/normal/9999-kiosk-postinstall.chroot << 'HOOK'
+#!/bin/bash
+set -e
+
+echo "==> Running kiosk post-install hook..."
+
+# Install Python packages
+pip3 install --break-system-packages PyQt5 websocket-client
+
+# Clone repo
+if [ ! -d /home/jgitta/kiosk-browser ]; then
+  git clone https://gitea.jgitta.com/jgitta/senior-kiosk.git /home/jgitta/kiosk-browser
+  cd /home/jgitta/kiosk-browser
+  bash install-kiosk.sh
+fi
+
+echo "==> Kiosk post-install complete"
+HOOK
+chmod +x config/hooks/normal/9999-kiosk-postinstall.chroot
+
+echo "==> Building ISO (this may take 5-10 minutes)..."
+lb build 2>&1 | tail -20
+
+ISO_FILE="live-image-amd64.hybrid.iso"
+if [ -f "$ISO_FILE" ]; then
+  cp "$ISO_FILE" "$OUTPUT_DIR/seniornet-kiosk.iso"
+  echo
+  echo "==> ✓ ISO build complete!"
+  echo "    Output: $OUTPUT_DIR/seniornet-kiosk.iso"
+  echo
+  echo "Next steps:"
+  echo "  1. Write to USB:"
+  echo "     sudo dd if=$OUTPUT_DIR/seniornet-kiosk.iso of=/dev/sdX bs=4M status=progress && sync"
+  echo
+  echo "  2. Boot from USB and wait ~10 minutes for silent installation"
+  echo
+  echo "  3. Machine will reboot into kiosk mode automatically"
+  echo
+else
+  echo "ERROR: ISO build failed"
+  exit 1
+fi
@@ -0,0 +1,161 @@
+#!/bin/bash
+set -e
+
+# Post-install script for SeniorNet Kiosk ISO
+# Runs after Debian installation completes
+
+echo "==> SeniorNet Kiosk Post-Install"
+echo
+
+REPO_DIR="/home/jgitta/kiosk-browser"
+HOME_DIR="/home/jgitta/kiosk-home"
+CHROMIUM_PROFILE="/home/jgitta/chromium-kiosk"
+
+# Ensure jgitta user exists
+if ! id "jgitta" &>/dev/null; then
+  useradd -m -s /bin/bash jgitta
+fi
+
+# Install packages
+echo "==> Installing dependencies..."
+apt-get update
+apt-get install -y python3 python3-pip chromium openbox xserver-xorg xserver-xorg-video-dummy xinit xdotool xprop git sqlite3 xvfb 2>&1 | grep -v "^Reading"
+
+# Install Python packages
+echo "==> Installing Python packages..."
+pip3 install --break-system-packages PyQt5 websocket-client 2>&1 | tail -5
+
+# Clone repo
+echo "==> Cloning repository..."
+if [ ! -d "$REPO_DIR" ]; then
+  git clone https://gitea.jgitta.com/jgitta/senior-kiosk.git "$REPO_DIR"
+fi
+
+cd "$REPO_DIR"
+
+# Deploy home screen with config
+echo "==> Deploying home screen..."
+mkdir -p "$HOME_DIR"
+if [ -f config.json ] && [ -f home-screen-index.html ]; then
+  config_json=$(cat config.json | sed 's/\\/\\\\/g' | sed 's/"/\\"/g' | tr '\n' ' ')
+  sed "s|const config = {};|const config = $config_json;|" home-screen-index.html > "$HOME_DIR/index.html"
+  chown jgitta:jgitta "$HOME_DIR/index.html"
+fi
+
+# Create Chromium profile directory
+mkdir -p "$CHROMIUM_PROFILE"
+chown -R jgitta:jgitta "$CHROMIUM_PROFILE"
+
+# Systemd units
+echo "==> Installing systemd units..."
+
+cat > /etc/systemd/system/kiosk-display.service << 'UNIT1'
+[Unit]
+Description=SeniorNet Kiosk Display
+Before=kiosk.service
+After=network.target
+
+[Service]
+Type=forking
+User=jgitta
+ExecStart=/bin/bash -c 'Xvfb :0 -screen 0 1920x1080x24 -ac &'
+ExecStartPost=/bin/sleep 2
+ExecStartPost=/bin/bash -c 'DISPLAY=:0 su - jgitta -c "openbox &"'
+ExecStartPost=/bin/sleep 1
+
+[Install]
+WantedBy=multi-user.target
+UNIT1
+
+cat > /etc/systemd/system/kiosk.service << 'UNIT2'
+[Unit]
+Description=SeniorNet Kiosk
+After=network.target kiosk-display.service
+Wants=kiosk-display.service
+
+[Service]
+Type=simple
+User=jgitta
+Environment="DISPLAY=:0"
+WorkingDirectory=/home/jgitta/kiosk-browser
+ExecStart=/usr/bin/python3 /home/jgitta/kiosk-browser/browser.py
+Restart=always
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target
+UNIT2
+
+systemctl daemon-reload
+systemctl enable kiosk-display.service kiosk.service
+
+# kiosk-restart helper
+cat > /usr/local/bin/kiosk-restart << 'HELPER'
+#!/bin/bash
+pkill -f "remote-debugging-port=9222" || true
+pkill -f "python3.*browser" || true
+sleep 1
+systemctl restart kiosk.service
+HELPER
+chmod +x /usr/local/bin/kiosk-restart
+
+# Openbox config
+echo "==> Configuring Openbox..."
+mkdir -p /home/jgitta/.config/openbox
+
+cat > /home/jgitta/.config/openbox/rc.xml << 'OPENBOX'
+<?xml version="1.0" encoding="UTF-8"?>
+<openbox_config xmlns="http://openbox.org/3.4/rc">
+  <startup/>
+</openbox_config>
+OPENBOX
+
+cat > /home/jgitta/.xinitrc << 'XINITRC'
+#!/bin/bash
+exec openbox
+XINITRC
+chmod +x /home/jgitta/.xinitrc
+
+# X11 hardening
+echo "==> Configuring X11..."
+cat > /etc/X11/xorg.conf.d/50-kiosk.conf << 'XORG'
+Section "Device"
+  Identifier "Dummy0"
+  Driver "dummy"
+EndSection
+
+Section "Monitor"
+  Identifier "Monitor0"
+  HorizSync 30-80
+  VertRefresh 30-75
+EndSection
+
+Section "Screen"
+  Identifier "Screen0"
+  Device "Dummy0"
+  Monitor "Monitor0"
+  DefaultDepth 24
+  SubSection "Display"
+    Depth 24
+    Modes "1920x1080"
+  EndSubSection
+EndSection
+
+Section "ServerFlags"
+  Option "DontVTSwitch" "true"
+  Option "BlankTime" "0"
+  Option "StandbyTime" "0"
+EndSection
+XORG
+
+# Permissions
+echo "==> Setting permissions..."
+chown -R jgitta:jgitta /home/jgitta/.config /home/jgitta/.xinitrc "$REPO_DIR" "$HOME_DIR"
+
+# Enable getty on ttys for troubleshooting (optional, comment out for full lockdown)
+systemctl set-default multi-user.target
+
+echo
+echo "==> Post-install complete"
+echo "    Machine will auto-start kiosk on next boot"
+echo
@@ -0,0 +1,58 @@
+# Debian Preseed — SeniorNet Kiosk
+# Silent/unattended installer configuration
+
+# Locale and keyboard
+d-i debian-installer/locale string en_US.UTF-8
+d-i keyboard-configuration/xkb-keymap select us
+
+# Network
+d-i netcfg/choose_interface select auto
+d-i netcfg/get_hostname string kiosk
+d-i netcfg/get_domain string local
+d-i netcfg/hostname string kiosk
+
+# Mirror
+d-i mirror/country string manual
+d-i mirror/http/hostname string deb.debian.org
+d-i mirror/http/directory string /debian
+d-i mirror/http/proxy string
+
+# Partitioning — use entire disk
+d-i partman-auto/method string lvm
+d-i partman-lvm/device_remove_lvm boolean true
+d-i partman-auto/purge_lvm_confirmation boolean true
+d-i partman-auto/disk string /dev/sda
+d-i partman-auto/choose_recipe select atomic
+d-i partman/confirm_write_new_label boolean true
+d-i partman/confirm boolean true
+
+# Clock/timezone
+d-i time/zone string UTC
+d-i clock-setup/utc boolean true
+d-i clock-setup/ntp boolean true
+
+# Account setup — root with no password
+d-i passwd/root-login boolean true
+d-i passwd/make-user boolean false
+d-i passwd/root-password password kiosk
+d-i passwd/root-password-again password kiosk
+
+# APT
+d-i apt-setup/services-select multiselect security, updates
+d-i apt-setup/security_host string security.debian.org
+
+# Package selection
+tasksel tasksel/first multiselect standard, ssh-server
+d-i pkgsel/include string openssh-server build-essential git curl wget
+
+# Grub bootloader
+d-i grub-installer/only boolean true
+d-i grub-installer/bootdev string default
+
+# Finish installation
+d-i finish-install/reboot_in_background boolean true
+
+# Run post-install script
+d-i preseed/late_command string \
+  in-target bash -c 'curl -fsSL https://gitea.jgitta.com/jgitta/senior-kiosk/raw/master/install-kiosk.sh | bash' || \
+  in-target bash -c 'cd /root && git clone https://gitea.jgitta.com/jgitta/senior-kiosk.git && bash senior-kiosk/install-kiosk.sh'