Add various scripts for MinIO and Restic backup management

scripts/kvm-bridge-setup.sh

@@ -0,0 +1,74 @@
+#!/bin/bash
+# configure-bridge.sh
+# This script configures a network bridge interface for KVM on Arch Linux
+# using systemd-networkd. It creates configuration files for:
+#   - the bridge interface (default: br0)
+#   - the physical interface to be enslaved to the bridge
+#
+# Usage:
+#   sudo ./configure-bridge.sh <physical_interface> [bridge_name]
+#
+# Example:
+#   sudo ./configure-bridge.sh enp2s0 br0
+#
+# Reference: Arch Linux Wiki, "Bridge networking" https://wiki.archlinux.org/title/Bridge_networking
+
+set -euo pipefail
+
+if [ "$EUID" -ne 0 ]; then
+    echo "Please run as root."
+    exit 1
+fi
+
+if [ "$#" -lt 1 ]; then
+    echo "Usage: $0 <physical_interface> [bridge_name]"
+    exit 1
+fi
+
+PHYS_IF="$1"
+BRIDGE_IF="${2:-br0}"
+
+NETWORK_DIR="/etc/systemd/network"
+if [ ! -d "$NETWORK_DIR" ]; then
+    echo "Directory $NETWORK_DIR does not exist. Please ensure systemd-networkd is installed."
+    exit 1
+fi
+
+echo "Configuring bridge interface '${BRIDGE_IF}' for physical interface '${PHYS_IF}'..."
+
+# Create the .netdev file for the bridge
+BRIDGE_NETDEV_FILE="${NETWORK_DIR}/25-${BRIDGE_IF}.netdev"
+cat > "$BRIDGE_NETDEV_FILE" <<EOF
+[NetDev]
+Name=${BRIDGE_IF}
+Kind=bridge
+EOF
+echo "Created ${BRIDGE_NETDEV_FILE}"
+
+# Create the .network file for the bridge (using DHCP)
+BRIDGE_NETWORK_FILE="${NETWORK_DIR}/30-${BRIDGE_IF}.network"
+cat > "$BRIDGE_NETWORK_FILE" <<EOF
+[Match]
+Name=${BRIDGE_IF}
+
+[Network]
+DHCP=yes
+EOF
+echo "Created ${BRIDGE_NETWORK_FILE}"
+
+# Create the .network file for the physical interface to attach it to the bridge
+PHYS_NETWORK_FILE="${NETWORK_DIR}/20-${PHYS_IF}.network"
+cat > "$PHYS_NETWORK_FILE" <<EOF
+[Match]
+Name=${PHYS_IF}
+
+[Network]
+Bridge=${BRIDGE_IF}
+EOF
+echo "Created ${PHYS_NETWORK_FILE}"
+
+echo "Restarting systemd-networkd to apply changes..."
+systemctl restart systemd-networkd
+
+echo "Bridge configuration complete. The bridge '${BRIDGE_IF}' should now be up."
+echo "You can check the status with: networkctl status ${BRIDGE_IF}"