Add support for non-interactive wsssh-server package installations

- Modified debconf template to include note about non-interactive handling
- Updated preinst script to detect DEBIAN_FRONTEND=noninteractive
- Automatically stops service in non-interactive environments without prompting
- Changed debconf priority from 'high' to 'medium' for better UX
- Added fallback handling for when debconf fails or returns empty values
- Updated README.md with instructions for non-interactive installations
- Ensures compatibility with automated deployment scripts and CI/CD pipelines
- Maintains user control in interactive environments while enabling automation

README.md

@@ -121,7 +121,14 @@ man wssshd
 
 **Note**: The wsssh-server package uses a standalone PyInstaller binary that bundles all Python dependencies, so no additional Python packages are required for installation.
 
-**Upgrade Note**: When upgrading the wsssh-server package, the service will be automatically stopped before the upgrade and restarted afterward if it was running, ensuring zero-downtime upgrades.
+**Upgrade Note**: When upgrading the wsssh-server package, if the wssshd service is running, you will be prompted for confirmation before the service is stopped for the upgrade. The service will be automatically restarted afterward if it was running, ensuring zero-downtime upgrades.
+
+**Non-Interactive Installation**: For automated deployments or CI/CD pipelines, use:
+```bash
+export DEBIAN_FRONTEND=noninteractive
+sudo dpkg -i dist/wsssh-server*.deb
+```
+The service will be stopped and restarted automatically without user interaction.
 
 #### wsssh-tools Package (C Implementation)
 ```bash

wsssh-server/debian/control

@@ -10,7 +10,7 @@ Vcs-Git: https://git.nexlab.net/nexlab/wsssh.git
 
 Package: wsssh-server
 Architecture: any
-Depends: ${shlibs:Depends}, ${misc:Depends}, adduser
+Depends: ${shlibs:Depends}, ${misc:Depends}, adduser, debconf (>= 0.5) | debconf-2.0
 Description: WebSocket SSH Server (wssshd)
  A modern SSH tunneling system that provides WebSocket-based SSH/SCP access
  to registered client machines. This package contains the server component

wsssh-server/debian/preinst

@@ -19,10 +19,32 @@ case "$1" in
         if [ -x /etc/init.d/wssshd ]; then
             if /etc/init.d/wssshd status >/dev/null 2>&1; then
                 WSSSHD_RUNNING=1
+
+                # Check if we're in a non-interactive environment
+                if [ -n "$DEBIAN_FRONTEND" ] && [ "$DEBIAN_FRONTEND" = "noninteractive" ]; then
+                    echo "Non-interactive environment detected, stopping wssshd service automatically..."
+                    /etc/init.d/wssshd stop || true
+                    sleep 2
+                else
+                    # Use debconf to ask user for confirmation
+                    . /usr/share/debconf/confmodule
+                    db_input medium wsssh-server/stop-service || true
+                    db_go || true
+
+                    # Get the user's answer
+                    db_get wsssh-server/stop-service
+                    if [ "$RET" = "true" ] || [ -z "$RET" ]; then
                         echo "Stopping wssshd service for upgrade..."
                         /etc/init.d/wssshd stop || true
                         # Give it a moment to fully stop
                         sleep 2
+                    else
+                        echo "User declined to stop wssshd service. Upgrade may fail."
+                        echo "You can manually stop the service with: sudo /etc/init.d/wssshd stop"
+                        echo "Then retry the upgrade."
+                        exit 1
+                    fi
+                fi
             fi
         fi
     ;;

wsssh-server/debian/templates

+Template: wsssh-server/stop-service
+Type: boolean
+Default: true
+Description: Stop wssshd service during upgrade?
+ The wssshd service is currently running. To upgrade the package safely,
+ the service needs to be stopped temporarily. It will be restarted
+ automatically after the upgrade is complete.
+ .
+ Should the wssshd service be stopped now?
+ .
+ This question will be skipped in non-interactive environments, and the
+ service will be stopped automatically for safe upgrades.
\ No newline at end of file