code.grnet.gr Git - snf-image/blob - snf-image-host/xen-common.sh

   1 get_img_dev() {
   2         echo /dev/xvdb
   3 }
   4
   5 launch_helper() {
   6         local name helperid rc blockdev floppy
   7
   8         blockdev="$1"
   9         floppy="$2"
  10
  11         name=$(uuid)
  12     xm create /dev/null \
  13       kernel="$HELPER_KERNEL" ramdisk="$HELPER_INITRD"  root="/dev/xvda1" \
  14       extra="console=hvc0 hypervisor=$HYPERVISOR snf_image_activate_helper quiet ro boot=local" \
  15       disk="file:${HELPER_IMG},xvda,w" disk="phy:$blockdev,xvdb,w" \
  16       disk="file:$floppy,xvdc,r" vif="mac=aa:00:00:00:00:11,bridge=$XEN_BRIDGE" \
  17       memory="256" boot="c" vcpus=1 name="$name"
  18
  19     if ! xenstore-exists snf-image-helper; then
  20         xenstore-write snf-image-helper ""
  21                 #add_cleanup xenstore-rm snf-image-helper
  22     fi
  23
  24     helperid=$(xm domid "$name")
  25     xenstore-write snf-image-helper/${helperid} ""
  26         add_cleanup xenstore-rm snf-image-helper/${helperid}
  27     xenstore-chmod snf-image-helper/${helperid} r0 w${helperid}
  28
  29     brctl delif xenbr "vif${helperid}.0"
  30
  31     socat EXEC:"./helper-monitor.py ${MONITOR_FD}" INTERFACE:vif${helperid}.0 &
  32
  33         set +e
  34
  35     $TIMEOUT -k $HELPER_HARD_TIMEOUT $HELPER_SOFT_TIMEOUT \
  36       socat EXEC:"xm console $name",pty STDOUT | sed -u 's|^|HELPER: |g'
  37
  38         rc=$?
  39         set -e
  40
  41     if [ $rc -ne 0 ]; then
  42         if [ $rc -eq 124 ];  then
  43             log_error "Image customization was terminated. Did not finish on time."
  44         elif [ $rc -eq 137 ]; then # (128 + SIGKILL)
  45             log_error "Image customization was killed. Did not finish on time."
  46         elif [ $rc -eq 141 ]; then # (128 + SIGPIPE)
  47             log_error "Image customization was terminated by a SIGPIPE."
  48             log_error "Maybe progress monitor has died unexpectedly."
  49         elif [ $rc -eq 125 ]; then
  50             log_error "Internal Error. Image customization could not start."
  51             log_error "timeout did not manage to run."
  52         else
  53             log_error "Image customization died unexpectedly (return code $rc)."
  54         fi
  55         exit 1
  56     else
  57         echo -n "$(date +%Y:%m:%d-%H:%M:%S.%N)" >&2
  58         log_info "Customization VM finished."
  59     fi
  60
  61     result=$(xenstore-read snf-image-helper/$helperid)
  62
  63     if [ "x$result" != "xSUCCESS" ]; then
  64         log_error "Image customization failed."
  65         exit 1
  66     fi
  67
  68 }
  69