Add docs/tech_docs/linux/virt-manager.sh

docs/tech_docs/linux/virt-manager.sh

@@ -0,0 +1,39 @@
+#!/bin/bash
+# This script installs KVM, Virt-Manager, and sets up necessary configurations on Debian.
+# It checks for doas or sudo for privilege escalation, installs required packages,
+# enables and starts necessary services, and configures user permissions.
+
+# Check for privilege escalation tool
+[ -x "$(command -v doas)" ] && [ -e /etc/doas.conf ] && ld="doas"
+[ -x "$(command -v sudo)" ] && ld="sudo"
+
+# Exit if neither doas nor sudo is found
+if [ -z "$ld" ]; then
+  echo "Neither doas nor sudo is installed. Exiting."
+  exit 1
+fi
+
+# Update package list
+$ld apt update
+
+# Install virt-manager, kvm and dependencies
+$ld apt install qemu-kvm libvirt-daemon-system libvirt-clients bridge-utils virtinst virt-manager -yy
+
+# Optionally install ssh-askpass for graphical sudo prompt, useful when using X11 forwarding
+$ld apt install ssh-askpass -yy
+
+# Verify KVM installation (optional step for troubleshooting)
+# kvm-ok
+
+# Enable and start the libvirt daemon
+$ld systemctl enable --now libvirtd
+
+# Add current user to libvirt and libvirt-qemu groups for permissions
+user="$(id -un)"
+$ld adduser $user libvirt
+$ld adduser $user libvirt-qemu
+
+# Configure X11 Forwarding (ensure sshd_config on server has X11Forwarding yes)
+
+echo "Installation and basic configuration complete."
+echo "Remember to configure your SSH client and server for X11 forwarding."