Add systemd support and pre-installed Cisco 5.1.14.145 binaries

- Add systemd, dbus packages to Dockerfile
- Pre-install Cisco Secure Client 5.1.14.145 binaries
- Add hosts entries for VPN servers at runtime
- Add cgroup volume mount for systemd support
- Start dbus daemon in entrypoint for Cisco client

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/rego-tunnel-linux/source/entrypoint.sh

@@ -7,6 +7,19 @@ DISPLAY_ADDR="${DISPLAY:-:1}"
 
 pids=()
 
+setup_hosts() {
+  # Add VPN hosts entries (Docker manages /etc/hosts, so add at runtime)
+  grep -q "vpn-ord1.dovercorp.com" /etc/hosts || echo "162.209.24.100 vpn-ord1.dovercorp.com" >> /etc/hosts
+  grep -q "vpn.dovercorp.com" /etc/hosts || echo "13.67.192.27 vpn.dovercorp.com" >> /etc/hosts
+}
+
+start_dbus() {
+  # Start dbus for Cisco Secure Client
+  mkdir -p /run/dbus
+  rm -f /run/dbus/pid
+  dbus-daemon --system --fork 2>/dev/null || true
+}
+
 start_gui() {
   mkdir -p /root/.vnc
   x11vnc -storepasswd "$VNC_PASSWORD" /root/.vnc/pass >/dev/null 2>&1 || true
@@ -24,7 +37,8 @@ start_gui() {
 }
 
 start_vpnagent() {
-  /opt/cisco/secureclient/bin/vpnagentd -execv_instance &
+  # Start Cisco VPN agent daemon
+  /opt/cisco/secureclient/bin/vpnagentd &
   pids+=($!)
 }
 
@@ -50,8 +64,10 @@ start_terminal() {
 trap 'kill 0' INT TERM
 
 echo "Starting Rego VPN container..."
+setup_hosts
 setup_tun
 setup_nat
+start_dbus
 start_gui
 start_vpnagent
 start_terminal