Add 24 files

tailscale-relay/backup.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# shellcheck disable=SC1091
+source "${AGENT_PATH}/common.sh"
+_check_required_env_vars "CONTAINER_NAME" "BACKUP_FILE" "TEMP_DIR"
+
+if ! lxc info "${CONTAINER_NAME}" &>/dev/null; then
+    _die "Container ${CONTAINER_NAME} does not exist."
+fi
+
+mkdir -p "${TEMP_DIR}/backup"
+
+# Export tailscale state from the container
+echo "Backing up Tailscale state..."
+lxc exec "${CONTAINER_NAME}" -- tar -czf /tmp/tailscale-state.tgz -C /var/lib/tailscale . 2>/dev/null || _die "Failed to archive tailscale state"
+lxc file pull "${CONTAINER_NAME}/tmp/tailscale-state.tgz" "${TEMP_DIR}/backup/tailscale-state.tgz" || _die "Failed to pull backup from container"
+lxc exec "${CONTAINER_NAME}" -- rm -f /tmp/tailscale-state.tgz
+
+tar -czf "${BACKUP_FILE}" -C "${TEMP_DIR}/backup" .
+
+echo "Backup completed successfully"