Commit 2c2211a6 authored by Kroese's avatar Kroese Committed by GitHub
Browse files

Allow disk resize

parent 037e74c8
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+24 −15
Original line number Diff line number Diff line
@@ -12,13 +12,23 @@ if [ -f "${DATA}" ]; then

  OLD_SIZE=$(stat -c%s "${DATA}")

  # Resize disk to new size if needed

  if [ "$DATA_SIZE" -ne "$OLD_SIZE" ]; then

  if [ "$DATA_SIZE" -gt "$OLD_SIZE" ]; then

    echo "Resizing data disk from $OLD_SIZE to $DATA_SIZE bytes.."
      fallocate -l "${DATA_SIZE}" "${DATA}"
           
    REQ=$((DATA_SIZE-OLD_SIZE))
      
    # Check free diskspace    
    SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1)
      
    if (( REQ > SPACE )); then
      echo "ERROR: Not enough free space to resize virtual disk." && exit 84
    fi

    if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then
      echo "ERROR: Could not allocate file for virtual disk." && exit 85
    fi
      
  fi

  if [ "$DATA_SIZE" -lt "$OLD_SIZE" ]; then
@@ -29,7 +39,7 @@ if [ -f "${DATA}" ]; then
    mv -f "${DATA}" "${DATA}.bak"

  fi
  fi
  
fi

if [ ! -f "${DATA}" ]; then
@@ -38,18 +48,18 @@ if [ ! -f "${DATA}" ]; then
  SPACE=$(df --output=avail -B 1 "${IMG}" | tail -n 1)

  if (( DATA_SIZE > SPACE )); then
    echo "ERROR: Not enough free space to create virtual disk." && exit 84
    echo "ERROR: Not enough free space to create virtual disk." && exit 86
  fi

  # Create an empty file
  if ! fallocate -l "${DATA_SIZE}" "${DATA}"; then
    rm -f "${DATA}"
    echo "ERROR: Could not allocate file for virtual disk." && exit 85
    echo "ERROR: Could not allocate file for virtual disk." && exit 87
  fi

  # Check if file exists
  if [ ! -f "${DATA}" ]; then
    echo "ERROR: Data image does not exist ($DATA)" && exit 86
    echo "ERROR: Data image does not exist ($DATA)" && exit 88
  fi

fi
@@ -61,4 +71,3 @@ KVM_DISK_OPTS="\
    -device virtio-scsi-pci,id=hw-userdata,bus=pcie.0,addr=0xa \
    -drive file=${DATA},if=none,id=drive-userdata,format=raw,cache=none,aio=native,discard=on,detect-zeroes=on \
    -device scsi-hd,bus=hw-userdata.0,channel=0,scsi-id=0,lun=0,drive=drive-userdata,id=userdata0,rotation_rate=1,bootindex=1"