Restructure cistech-tunnel to match rego-tunnel pattern
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- build/: Dockerfile + entrypoint.sh (base image with VNC/noVNC)
- shared/: Runtime scripts mounted into container
  - xstartup: VNC startup, launches openconnect-vpn in xterm
  - openconnect-vpn: Main VPN script with menu, auto-connect, watchdog
- Removed source/ folder (replaced by build/)
- Updated docker-compose.json with proper volume mounts
- Changed port to 6080 (noVNC default)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
2026-01-17 10:36:41 +00:00
parent 5d54ed6f80
commit 3c427af6fe
8 changed files with 764 additions and 278 deletions

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FROM ubuntu:22.04
LABEL maintainer="alexz"
LABEL description="OpenConnect SSO VPN in Docker with noVNC"
LABEL version="1.0.0"
ENV DEBIAN_FRONTEND=noninteractive
ENV container=docker
# VNC/noVNC settings
ENV DISPLAY=:1
ENV VNC_PORT=5901
ENV NOVNC_PORT=6080
# Python/Playwright settings
ENV PLAYWRIGHT_BROWSERS_PATH=/ms-playwright
ENV VIRTUAL_ENV=/opt/venv
ENV PATH=/opt/venv/bin:$PATH
ENV QTWEBENGINE_DISABLE_SANDBOX=1
ENV QTWEBENGINE_CHROMIUM_FLAGS="--no-sandbox --disable-gpu"
# Install system dependencies
RUN apt-get update && apt-get install -y \
openconnect \
iproute2 \
iptables \
ca-certificates \
python3 \
python3-pip \
python3-venv \
vpnc-scripts \
curl \
wget \
openssh-client \
tigervnc-standalone-server \
tigervnc-common \
novnc \
websockify \
openbox \
xterm \
procps \
net-tools \
nano \
x11vnc \
xvfb \
fluxbox \
oathtool \
xauth \
libnss3 \
libatk1.0-0 \
libatk-bridge2.0-0 \
libx11-6 \
libx11-xcb1 \
libxcomposite1 \
libxrandr2 \
libgbm1 \
libxdamage1 \
libpango-1.0-0 \
fonts-liberation \
libegl1 \
libgl1 \
libopengl0 \
libdbus-1-3 \
libglib2.0-0 \
libxkbcommon0 \
libxkbcommon-x11-0 \
libxcb1 \
libxcb-cursor0 \
libxcb-icccm4 \
libxcb-image0 \
libxcb-keysyms1 \
libxcb-render0 \
libxcb-render-util0 \
libxcb-shm0 \
libxcb-xfixes0 \
libxcb-xinerama0 \
libxcb-randr0 \
libxcb-glx0 \
sudo \
&& apt-get clean \
&& rm -rf /var/lib/apt/lists/*
# Install libasound (different package name on different Ubuntu versions)
RUN apt-get update && (apt-get install -y libasound2t64 || apt-get install -y libasound2) && rm -rf /var/lib/apt/lists/*
# Python venv + openconnect-sso + playwright
RUN python3 -m venv "$VIRTUAL_ENV"
RUN pip install --no-cache-dir openconnect-sso[full] playwright keyring keyrings.alt && \
python -m playwright install --with-deps chromium
# Create directories
RUN mkdir -p /opt/scripts /shared /root/.vnc
# Create VNC startup script (embedded)
RUN echo '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' \
| base64 -d > /opt/scripts/startup-vnc.sh && \
chmod +x /opt/scripts/startup-vnc.sh
# Copy entrypoint script
COPY scripts/entrypoint.sh /opt/scripts/
RUN chmod +x /opt/scripts/entrypoint.sh
EXPOSE 5901 6080
CMD ["/opt/scripts/entrypoint.sh"]

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#!/bin/bash
# Entrypoint: VNC password setup + DNS fix + start VNC
set -euo pipefail
# Setup TigerVNC password file from env var
if [ -n "${VNC_PASSWORD:-}" ]; then
mkdir -p /root/.vnc
printf '%s\n%s\n' "$VNC_PASSWORD" "$VNC_PASSWORD" | vncpasswd -f > /root/.vnc/passwd
chmod 600 /root/.vnc/passwd
fi
# DNS fix for containers
cp /etc/resolv.conf /tmp/resolv.conf.bak 2>/dev/null || true
cp /etc/hosts /tmp/hosts.bak 2>/dev/null || true
umount /etc/resolv.conf 2>/dev/null || true
umount /etc/hosts 2>/dev/null || true
cat /tmp/resolv.conf.bak > /etc/resolv.conf 2>/dev/null || echo "nameserver 8.8.8.8" > /etc/resolv.conf
cat /tmp/hosts.bak > /etc/hosts 2>/dev/null || echo "127.0.0.1 localhost" > /etc/hosts
# Enable IP forwarding
echo 1 > /proc/sys/net/ipv4/ip_forward
echo "[entrypoint] IP forwarding enabled"
# Clean up stale X locks
rm -f /tmp/.X1-lock /tmp/.X11-unix/X1 2>/dev/null || true
# Start VNC server
echo "[entrypoint] Starting TigerVNC server..."
mkdir -p /root/.vnc
vncserver :1 -geometry 1280x800 -depth 24 -SecurityTypes VncAuth -localhost no
# Wait for VNC to start
sleep 2
# Start noVNC websockify
echo "[entrypoint] Starting noVNC on port ${NOVNC_PORT:-6080}..."
websockify --web=/usr/share/novnc/ ${NOVNC_PORT:-6080} localhost:5901 &
# Keep container running
echo "[entrypoint] VNC ready. Tailing logs..."
tail -f /root/.vnc/*.log