distribute VM-images with aria2 instead of ctorrent

roles/lmn_vm/files/rebase-vm.sh

@@ -1,87 +0,0 @@
-#!/usr/bin/bash
-# Rebase one level down
-set -eu
-
-show_help() {
-    cat << EOF >&2
-Usage: $(basename "$0") [-n newname] vmname"
-This script takes as input the name of the VM to rebase one level down
-    -n   new name of the rebased image
-EOF
-}
-
-while getopts ':n:' OPTION; do
-  case "$OPTION" in
-    n)
-      NEWNAME=$OPTARG
-      ;;
-    ?)
-      show_help
-      exit 1
-      ;;
-  esac
-done
-
-shift "$((OPTIND -1))"
-
-# if less or more than one arguments supplied, display usage
-if [[  $# -ne 1 ]]; then
-    show_help
-    exit 1
-fi
-
-# change to Images directory
-VM_DIR="/tmp/${UID}/vm"
-cd "${VM_DIR}"
-
-VM_NAME="$1"
-
-# check if VM-Diskimage exists
-if [[ ! -f "${VM_NAME}.qcow2" ]]; then
-    echo "File not found ${VM_NAME}.qcow2" >&2
-    exit 1
-fi
-
-# check if new VM-Diskimage exists
-if [[ -v NEWNAME ]] && [[ -f "${NEWNAME}.qcow2" ]]; then
-    echo "New Base already exists: ${NEWNAME}.qcow2" >&2
-    exit 1
-fi
-
-NUMBASES=$(qemu-img info --backing-chain "${VM_NAME}.qcow2" | grep -c image)
-NEWBASE=$(qemu-img info --backing-chain "${VM_NAME}.qcow2" | grep image | head  -n 3 | tail -n 1 | cut -d' ' -f2)
-CURRENTBASE=$(qemu-img info --backing-chain "${VM_NAME}.qcow2" | grep image | head  -n 2 | tail -n 1 | cut -d' ' -f2)
-
-if [[ ! "${NUMBASES}" -ge 3 ]]; then
-    echo "Image must have at least 2 backing-files" >&2
-    exit 1
-fi
-
-# check if base Diskimage exists
-if [[ ! -f "${NEWBASE}" ]] || [[ ! -f "${CURRENTBASE}" ]]; then
-    echo "Backingfiles not found ${CURRENTBASE}, ${NEWBASE}" >&2
-    exit 1
-fi
-
-# rebasing disk image
-qemu-img rebase -f qcow2 -b "${NEWBASE}" -F qcow2 "${VM_NAME}.qcow2"
-if [[ -v NEWNAME ]]; then
-    # copy and adapt machine definition file
-    CURRENTNAME="${CURRENTBASE/.qcow2/}"
-    if [[ -f "${CURRENTNAME}.xml" ]]; then
-      cp "${CURRENTNAME}.xml" "${NEWNAME}.xml"
-    elif [[ -f "/lmn/vm/${CURRENTNAME}.xml" ]]; then
-      cp "/lmn/vm/${CURRENTNAME}.xml" "${NEWNAME}.xml"
-    else
-      echo "no machine definition file found" >&2
-      exit 1
-    fi
-    sed -i "s/${CURRENTNAME}/${NEWNAME}/" "${NEWNAME}.xml"
-    NEWNAME="${NEWNAME}.qcow2"
-else
-    rm "${CURRENTBASE}"
-    NEWNAME="${CURRENTBASE}"
-fi
-
-mv "${VM_NAME}.qcow2" "${NEWNAME}"
-chmod a-w "${NEWNAME}"